Relevant bibliographies by topics / Coke-oven

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Coke-oven'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Coke-oven"

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Li, Gong Fa, Jian Yi Kong, Guo Zhang Jiang, and Liang Xi Xie. "Intelligent Control of Coke Oven Production Process." Advanced Materials Research 129-131 (August 2010): 198–203. http://dx.doi.org/10.4028/www.scientific.net/amr.129-131.198.

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According to the characteristics and control demand of coke oven, research on intelligent control of coke oven production process was carried. Firstly intelligent control structure of coke oven production process was established. Then intelligent control of blending coal, collecting main pressure, combustion and heating intelligent control of coke oven were discussed simply, while production planning and scheduling was discussed in detail. The control principle of combining the intermittent heating control with the heating gas flow adjustment was adopted, and fuzzy compound control was proposed to establish heating intelligent control strategy and model of coke oven, which combined feedback control, feedforward control and fuzzy intelligent control. Production planning and scheduling of coke oven were optimized by using dynamic programming and genetic algorithm. The practical running indicates that the system can effectively improve quality of coke and decrease energy consumption, stabilize production of coke oven, and has great practical value.
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Li, Gong Fa, Jian Yi Kong, Guo Zhang Jiang, and Liang Xi Xie. "Model of Heating Fuzzy Intelligent Control System of Large-Scale Coke Oven." Applied Mechanics and Materials 29-32 (August 2010): 979–84. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.979.

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Coke oven production has the characteristics of nonlinear, large inertia, large disturbances, and highly-coup ling and so on. The control method of “intermittent heating control” is adopted in traditional heating control system of coke oven, and cannot satisfy the command of heating control on coke oven. The control principle of combining the “intermittent heating control” with the heating gas flow adjustment is adopted according to analysis the difficulty and strategy of heating control on coke oven. On the basis of studying deficiency of the existing control strategy, fuzzy compound control is proposed to establish heating intelligent control model of coke oven, which combines feedback control, feedforward control and fuzzy intelligent control. Carbonization index is used in the model to control coking management of coke oven. Then heating fuzzy intelligent control structure of coke oven is built. According to artificial experience and actual condition, fuzzy controller is designed. Fuzzy control can deal with fuzzy, inexact or uncertainty information and has great robust, which can realize intelligent control of heating process of coke oven. Better control result of temperature control is realized by fuzzy intelligent control model. The system has great practical value.
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Li, Gong Fa, Jian Yi Kong, Guo Zhang Jiang, and Liang Xi Xie. "Intelligent Control and Management Integrated System of Coke Oven." Key Engineering Materials 460-461 (January 2011): 625–30. http://dx.doi.org/10.4028/www.scientific.net/kem.460-461.625.

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In order to improve the level of control and management of coke oven, the research on control and management integrated system is carried out. In modern advanced control system of coke oven, the control scheme of feedback combined with feed-forward, and control merged with management is widely used. The integrated control and management system of coke oven is introduced systematically, including the system model, production planning and management, heating control system, the model and method of evaluating temperature, intelligent combustion control and the pressure control gas collector of coke oven. It is pointed out that the integration of control and management is the developing orientation of coke oven control system.
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He, Feng, Huan Li, Hui Lin Li, Yi Ming Li, and Hai Tao Wang. "Analysis of Coke Oven Gas Dehydration Technology for Vehicles." Advanced Materials Research 805-806 (September 2013): 1306–10. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.1306.

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Coke oven gas is an alternative hydrogen-rich fuel for vehicles, the water vapor in it will result in corrosion and seal damage of the engine combustion chamber. The paper describes the method and principle of COG dehydration, through the analysis of gas dehydration technology, determines the program of coke oven gas dehydration, and implements it in the coke oven gas stations. The result shows the coke oven gas after dehydration meets automotive requirements.
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Martynova, A. Yu, O. S. Malysh, V. A. Saraeva, and I. N. Palval. "ORGANOSULFUR COMPOUNDS OF COKE OVEN GAS AND THEIR CONTRIBUTION TO EMISSIONS OF SULFUR DIOXIDE FROM THE SMOKESTACKS OF COKE BATTERIES." Journal of Coal Chemistry 6 (2020): 12–17. http://dx.doi.org/10.31081/1681-309x-2020-0-6-12-17.

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The article touches upon the problem of cleaning of the coke oven gas from sulfur compounds, which is relevant in connection with the requirements for reducing of the sulfur dioxide emissions into the atmosphere and ensuring of the environmental safety of production in general. At present, the sulfur dioxide emissions from coke-chemical plants account for about 20 % of the total emissions of pollutants from coke ovens and are calculated from the concentration of hydrogen sulfide in coke oven gas after its purification before feeding to coke oven batteries heating systems. However, in addition to hydrogen sulfide, coke oven gas also contains organosulfur compounds such as carbon disulfide (CS2), carbon oxysulfide (COS), thiophene (C4H4S), mercaptans, etc. The authors of the article carried out a study to determine the content of organic sulfur compounds in the original and purified coke oven gas, as well as the contribution of these substances to sulfur dioxide emissions from the smokestacs of coke oven batteries. The calculation has been performed of the additional volume of sulfur dioxide, which is formed due to the combustion of organosulfur compounds of coke oven gas during its combustion in the heating system of coke ovens. It has been found that under the condition of complete conversion of organic sulfur compounds into sulfur dioxide during the combustion of coke oven gas in the heating system of coke ovens, the concentration of sulfur dioxide in flue gases can be approximately 25.0-35.0 mg/m3 (in recount on 5 % oxygen content in flue gases). It has been also shown that the share of emissions of the sulfur dioxide formed as a result of the combustion of hydrogen sulfide in coke oven gas is 90-95 %, and that formed as a result of combustion of the organic sulfur compounds is 5-10 %, even if they are completely transformed into the sulfur dioxide. It has been concluded that it is legitimate to calculate the volume of sulfur dioxide emissions based on the concentration of hydrogen sulfide in purified coke oven gas, supplied as an energy carrier to the heating system of coke ovens.
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Ranjan, Rupak, H. P. Tiwari, P. K. Srivastava, Mansingh S. Raghuwanshi, Ashwani Kumar Jaiswal, and Moreshwar G. Borkar. "Enhancement of the productivity of non-recovery stamp charge coke oven plant at JSPL Raigarh." Metallurgical Research & Technology 117, no. 6 (2020): 617. http://dx.doi.org/10.1051/metal/2020074.

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In recent past, Jindal Steel & Power Limited, Raigarh unit, has increased the hot metal production capacity by the renovation of the existing blast furnaces. Therefore, the blast furnace coke demand has increased. This excess demand for metallurgical coke production from the existing non-recovery stamp charge coke oven plant was a very tough challenge, because the coke oven plant was already running at rated production capacity. Therefore, to fulfill the requirement of excess coke and to deliver more value to the customers, several initiatives have been taken by the Coke Oven and Technical Services Department within the existing setup. Few approaches had been adopted to increase the productivity of coke by ∼20% without deteriorating the resultant coke quality. This paper describes in details the steps taken to enhance the productivity of non-recovery stamp charge coke oven plant.
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Amamoto, Kazuma. "Coke strength development in the coke oven." Fuel 76, no. 1 (January 1997): 17–21. http://dx.doi.org/10.1016/s0016-2361(96)00179-2.

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Nevřivová, Lenka, Miroslav Kotouček, and Karel Lang. "Possibilities of Reducing the Apparent Porosity of Silica Bricks for the Coke Batteries." Advanced Materials Research 897 (February 2014): 121–24. http://dx.doi.org/10.4028/www.scientific.net/amr.897.121.

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Silica is used for lining of the upper parts of glass furnaces and their regenerators and for lining of the lids of arc furnaces and for the coke oven batteries construction. Silica bricks represent 60% of refractory material used for a coke battery construction. Coke ovens are generally the largest oven aggregates, where silica material is used. The whole coke oven battery may reach the length up to 80 m due to the chamber sizes. A single coke oven battery contains up to 50.000 tons of refractories [1]. From the material science point of view, the durability of silica bricks depends on numerous parameters including first of all porosity and mineral composition. Microstructure of silica bricks changes during their application due to the heat load, repeated heating and cooling, and direct contact with the oven atmosphere. The paper discusses the possibility of reducing the apparent porosity and increasing of bulk density of coke oven silica bricks. It describes the effects of an iron dust, microsilica and influence of the compaction pressure on the coke oven silica microstructure. Functional characteristics of the material prepared according to the new standard recipes are compared with the properties of standard silica products.
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Amamoto, Kazuma. "Coke strength development in the coke oven. 2. Homogenizing the strength of coke throughout the coke oven chamber." Fuel 76, no. 2 (January 1997): 133–36. http://dx.doi.org/10.1016/s0016-2361(96)00200-1.

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Shi, Hong Wei, Xing Kai Zhang, Dong Wang, and Shuai Wang. "A Research on Ignition of a Boiler by Using Coke-Oven Gas Instead of Light Oil and Alternation of the Boiler." Advanced Materials Research 1044-1045 (October 2014): 205–8. http://dx.doi.org/10.4028/www.scientific.net/amr.1044-1045.205.

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In order to solute the question of boiler ignition in thermal electrical factory of an Aluminun plant,Coke-oven gas was used to substitute for ligtht oil.At the same output of boiler,the cost of start up can be reduced;at low boiler output coke-oven gas can be used to ignite coal,and the ignition was steady.Once upon a time,the coke-oven gas was ignited directly in the air,it wasted energy and caused envirnmental pollution.The coke-oven gas guns were placed in the under secondary air and the middle secondary air,the output of single gas gun was 800Nm3/h;the virtue of the arrangement was to prevent coke-oven gas consuming so much air for the coal.
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Dissertations / Theses on the topic "Coke-oven"

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Khare, Mukesh K. "Dispersion of coke oven emissions." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328143.

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Thoroman, Jeffrey S. "Polycyclic Aromatic Hydrocarbon Exposure in German Coke Oven Workers." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1288982405.

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Fukuda, Koichi. "Preheating the coal charge prior to carbonisation in a coke oven." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397030.

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Wang, Tianyuan. "Developing indicators for the assessment and proper management of the different levels of exposure to polycyclic aromatic hydrocarbons (PAH)s generally associated with coke-oven workers." Thesis, Cape Peninsula University of Technology, 2011. http://hdl.handle.net/20.500.11838/799.

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Thesis (MTech(Environmental Health)--Cape Peninsula University of Technology, 2011
Coke ovens may occur in the aluminium, steel, graphite, electrical, and construction industries. In the work area coke-oven workers may be exposed to various chemical compounds. Polycyclic aromatic hydrocarbons (PAHs), as human carcinogen, are primary compounds in coke oven emissions (COEs) generated in the coking process. Coke oven workers are often exposed to PAHs and can lead to a variety of human diseases.The primary routes of potential human exposure to coke oven emissions are inhalation and dermal contact. Occupational exposure may occur during the production of coke from coal, or while using coke to extract metals from their ores to synthesize calcium carbide, or to manufacture graphite and electrodes. Workers at coking plants and coal tar production plants, as well as the residents surrounding these plants, have a high risk of possible exposure to coke oven emissions.It is known that coke production could be carcinogenic to humans (Group-1) by IARC. There has been sufficient epidemiological evidence suggesting an etiological link between carcinogenic polycyclic aromatic hydrocarbon (PAHs) exposure and lung cancer risk among coke-oven workers. Lung cancer among coke-oven workers has been classified as one of the eight prescribed occupational cancers in China, and its incidence rate was about 10 times that of the general population. Therefore, lung cancer of coke-oven workers is still a critical issue in the field of prevention and control of occupational cancers in China.This thesis explores the various exposure levels of workers to PAHs at a steel plant in China. The measurement will focus on the exposure difference of personal sampling among workers in selected job classifications given the job descriptions and the coking process. The Benxi Steel Industry in Liaoning province of China (BXSI) was selected as the research location. Liaoning province is in the North of China and the location of various heavy industries in China. The measurements will be done two separate coke ovens in Benxi Steel Industry. One new coke oven was built in the 90's last century (coke oven N) and the other older coke oven was built in the 1940's in last century (coke oven O). In this research, the total number of employees that were selected in the sample for both coke ovens are 64 samples included 54 coke oven exposure workers and 10 non-exposure administrative workers working at the plants.
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Lebas, Étienne. "Étude et modélisation de la pyrolyse du charbon en four tournant." Vandoeuvre-les-Nancy, INPL, 1995. http://docnum.univ-lorraine.fr/public/INPL_T_1995_LEBAS_E.pdf.

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La pyrolyse de grains de charbon en four tournant permet de produire un coke réactif principalement utilisé en électrométallurgie. Le but de cette étude est d'analyser et de modéliser les différents phénomènes impliqués dans ce procédé afin d'améliorer le fonctionnement et la conduite de l'installation industrielle. La pyrolyse du charbon a été étudiée par thermogravimétrie et analysé chromatographique des gaz émis afin de déterminer la cinétique de dégagement de chaque constituant des matières volatiles. L’enthalpie de réaction de la pyrolyse a été mesurée par calorimétrie à flux différentiel. Le mouvement de la charge en four tournant a été étudié grâce à des expérimentations en four pilote. Les mesures effectuées concernent le temps de séjour moyen, la distribution des temps de séjour, le profil de chargement et le temps moyen passe par un grain en surface du talus. Des corrélations adaptées à la modélisation du mouvement de la charge ont été déterminées. Les transferts de chaleur ont fait l'objet d'une étude approfondie: ils incluent le transfert en régime transitoire à travers la paroi et le rayonnement paroi/solide qui est partiellement absorbé par le gaz qui s'interpose. La démarche adoptée pour la modélisation de ce procédé a consisté à simuler, dans un premier temps, la pyrolyse d'une particule isolée. Le modèle de grain ainsi établi a ensuite été inséré dans une représentation globale du four en tenant compte de l'hydrodynamique du réacteur, des transferts de chaleur entre la paroi, le solide et le gaz et des réactions de combustion des matières volatiles. Ce modèle a été validé grâce à un ensemble de mesures effectuées sur le four tournant industriel et utilisé avec succès pour l'amélioration du fonctionnement de cette installation
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Queiroz, Luciano Matos. "Tratamento de despejo de coqueria via nitritação/desnitritação operando um sistema de lodo ativado em bateladas sequenciais." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-01092009-152916/.

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A presente pesquisa objetivou estudar a remoção dos poluentes presentes em uma água residuária de coqueria, através do processo biológico de nitritação/desnitritação operando um reator de lodo ativado em bateladas seqüenciais em duas etapas sucessivas. Durante a primeira, o reator foi alimentado com um efluente sintético composto por dois poluentes abundantes em despejos de coqueria: nitrogênio amoniacal (500 mg N/L) e fenol (1.000 mg C6H5OH/L). Na segunda, o reator foi alimentado com o despejo gerado na unidade de coqueria de uma indústria siderúrgica integrada. Ao longo da primeira etapa, ao final da fase aeróbia dos 28 ciclos de tratamento, foi possível alcançar eficiências de remoção de N-NH3 superiores a 90% com predominância do N-NO2 - na massa líquida do reator evidenciado pelas relações N-NO2 -/ (N-NO2 - + N-NO3 -) superiores a 86%. O principal mecanismo de inibição das bactérias oxidantes de nitrito (BON) foram concentrações de amônia livre no conteúdo do reator entre 3,2 e 19,5 mg NH3/L. As taxas específicas de nitritação variaram entre 0,03 e 0,11 kg N-NH3/ kg SSV.dia, para temperaturas no conteúdo do reator entre 15 e 34°C. Durante a fase anóxica, o fenol mostrou-se adequado como fonte de carbono para a biomassa desnitritante, desde que as taxas de aplicação volumétricas fossem inferiores a 0,02 kg fenol/m³.hora. Respeitando essa condição, foi possível alcançar: eficiências de remoção de fenol entre 45 e 56%; taxas específicas de remoção de fenol entre 0,03 e 0,09 kg C6H5OH / kg SSV.dia; taxas específicas de desnitritação entre 0,03 e 0,06 kg N-NO2 -/ kg SSV.dia e eficiências de remoção de (N-NO2 - + N-NO3 -) superiores a 95%. Ao longo da fase anóxica foram retiradas amostras do conteúdo do reator para a realização de análises de nitrofenóis (NF). Os resultados acusaram a presença de 2 nitrofenol e 4 nitrofenol em concentrações proporcionais à taxa de aplicação volumétrica do fenol na massa líquida do reator. A presença desses compostos em concentrações inferiores a 0,5 mg/L não causou impacto sobre a desnitritação biológica. As análises realizadas em amostras coletadas ao final da reação anóxica, não acusaram a presença de 2 e 4 NF, demonstrando que esses compostos podem ser biodegradados por uma biomassa bem adaptada ao fenol. A concepção do sistema para tratamento da água residuária de coqueria via nitritação/desnitritação envolveu a operação de dois reatores (principal e reator de polimento) operados em bateladas seqüenciais. As condições de operação do reator principal eram manipuladas para viabilizar o acúmulo de NNO2 - ao final da fase aeróbia e promover a desnitritação durante a fase anóxica, utilizando como fonte de carbono a própria matéria orgânica presente no despejo. Como o sobrenadante do reator principal apresentava concentrações elevadas de N-NO2 -, esse efluente era aplicado no reator de polimento, juntamente com etanol como fonte de carbono para redução do NNO2 -. Ao final da fase aeróbia dos ciclos de tratamento conduzidos no reator principal alcançaram-se: relações NO2 -/ (N-NO2 - + N-NO3 -) superiores a 88%; eficiências de remoções de nitrogênio total superiores a 60%; remoções de N-NH3 superiores a 90%, para valores de pH na massa líquida do reator entre 7,8 e 8,5 e, temperatura entre 23 e 31°C. Tal qual ocorrido durante a primeira etapa da investigação, o principal mecanismo de inibição da atividade das bactérias oxidantes de nitrito foi a toxicidade conferida pelas concentrações de amônia livre (3,7 a 15,7 mg NH3/L) no conteúdo do reator. Durante a fase anóxica, as eficiências de remoção de (N-NO2 - foram limitadas pela disponibilidade de matéria orgânica biodegradável no despejo da coqueria, razões DBO/DQOafluente superiores a 80% resultaram em remoções de N-NO2 - próximas de 100%. Quanto ao reator de polimento, pode-se afirmar que o etanol teve um efeito positivo sobre a remoção de matéria orgânica da água residuária da coqueria, considerando a configuração (dois lodos) utilizada.
The present research aimed to study the coke-oven wastewater treatment over nitritation/denitritation in an activated sludge sequencing batch reactor in two successive phases. During the first one, the reactor was fed with a synthetic effluent composed by two abundant pollutants present in coke-oven wastewaters: total ammonia nitrogen (500 mg TAN.l-1) and phenol (1,000 mg C6H5OH.l-1). During the second phase, the reactor was fed with the wastewater produced in an integrated steel industrys coke-plant. The results of the first phase (28 cycles) showed that was possible to achieve TAN removal efficiencies higher than 90% with NO2 --N predominance in the reactor content, evidenced by the rates NO2 --N/ (NO2 --N + NO3 --N) higher than 86%. The main mechanism of the nitrite oxidizer bacteria (NOB) inhibition was free ammonia concentrations between 3.2 and 19.5 mg NH3.l-1. The specific nitritation rates varied between 0.03 and 0.11 kg TAN. kg VSS-1.d-1, for temperatures between 15 and 34oC. Phenol showed to be suitable as carbon source for denitrifying biomass, once the volumetric application rates were lower than 0.02 kg phenol.m-3.h-1. Obeying this condition, it was possible to achieve: phenol removal efficiencies between 45 and 56%; specific phenol removal rates between 0.03 and 0.09 kg C6H5OH. kg VSS-1.d-1; specific denitritation rates between 0.03 and 0.06 kg NO2 --N . kg VSS-1.d-1 and removal efficiencies of (NO2 --N + NO3 --N) higher than 95%. During the anoxic phase, samples were collected from the reactor content for nitrophenols analyses. The results showed the presence of 2- nitrophenol (2-NP) and 4-nitrophenol (4-NP) in concentrations proportional to phenol volumetric application rate in the reactor liquid mass. The presence of those compounds in concentrations lower than 0.5 mg/L does not cause impact over the biological denitritation. The analyses accomplished in samples collected at the end of the anoxic reaction do not show the presence of 2 and 4-NP, demonstrating that these compounds can be biodegraded by a well-adapted biomass. The arrangement of the system for the treatment of coke-oven wastewater (Phase 02) over nitritation/denitritation involved the operation of two sequencing batch reactors (the main reactor and the polishing one). The operational conditions of the main reactor were manipulated to make feasible the NO2 --N accumulation at the end of the aerobic stage and promote the denitritation using the own organic matter present in the cokeoven wastewater as carbon source. As the supernatant of the main reactor presented high nitrite concentrations, this effluent was conducted to a biological denitrifying polishing reactor with ethanol as carbon source. At the end of the aerobic stage of the treatment cycles conducted in the main reactor, it was achieved: NO2 --N/ (NO2 --N + NO3 --N) higher than 88%; total nitrogen removal efficiencies higher than 60%; ammonia nitrogen removal higher than 90%. As occurred during the first phase of the investigation, the main NOB activity inhibition was the toxicity of the free ammonia concentrations (3.7 to 15.7 mg NH3.l-1) in the reactor content. At the end of anoxic stage, the NO2 --N removal efficiencies were limited by the availability of the biodegradable organic matter in the coke-oven wastewater but BOD/CODinfluent higher than 80% resulted in NO2 --N removals next to 100%. Regarding to the polishing reactor, it can be stated that the ethanol had a positive effect over the organic matter removal of the coke-oven wastewater.
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Orellana, Daniel Rigon. "Incorporação de moinha de carvão vegetal na produção de coques em forno piloto." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/158269.

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A reutilização de resíduos e sua destinação são desafios seguidamente enfrentados na indústria. Por ser extensa e empregar uma grande variedade de processos, matérias-primas e insumos, a cadeia do aço se beneficia por ter ampla flexibilidade e diversas possibilidades de reintrodução de compostos em sua rota de fabricação. Resíduos carbonosos, por exemplo, podem ser parcialmente usados em misturas de carvões no processo de coqueificação dependendo do tamanho e da composição química. Este trabalho, teve como objetivo, avaliar a influência da adição de moinha de carvão vegetal em uma mistura de carvões para a produção de coques em forno piloto de coqueificação e determinar os teores máximos de incorporação suportados pela mistura, avaliando parâmetros de qualidade do coque. Para isso, a moinha de carvão vegetal de eucalipto foi introduzida em duas frações granulométricas distintas, uma composta por partículas mais grosseiras (fração G) e outra composta por partículas mais finas (fração F), e caracterizado juntamente com a mistura utilizada. Posteriormente, os coques produzidos em forno piloto também foram caracterizados através de diversas análises: imediata, elementar, área superficial, porosidade, textura óptica, reatividade em termobalança, CRI/CSR e DI150/15. Os resultados atingidos mostraram que inserção da fração G de moinha comprometeu menos os parâmetros de qualidade dos coques com carvão vegetal. Teores de até 3% de moinha foram suportados para essa distribuição de tamanho de partícula enquanto que para a fração F, somente 1%. Outro fator observado foi que os coques produzidos com adição de moinha de carvão vegetal não tiveram queda significativa no teor de enxofre, a exceção da amostra contendo 10% de carvão vegetal na fração G. Em todas as amostras com moinha de carvão vegetal também foi possível notar o aumento da área superficial em relação ao coque de referência. Os testes termogravimétricos dinâmicos também trouxeram informações relevantes a respeito das temperaturas e taxas aparentes de reações dos coques feitos com moinha de carvão vegetal.
The reuse of waste materials and its destination are challenges continuously faced for industry. For being far-flung and apply a huge variety of process, raw materials and inputs, the steel supply chain benefits from having a high flexibility and many possibilities of reintroducing compounds in its manufacturing route. For example, carbonaceous materials can be used partially in coal blends for cokemaking process depending on particle size and chemical composition. The current work aimed to evaluate the influence of adding fine charcoal to a coal blend for coke production in a pilot oven and to determine the maximum content tolerated for the blend, assessing coke quality parameters. For this, a eucalyptus charcoal residue was introduced in two different size distributions, one composed of coarser particles (fraction G) and another of finer (fraction F), and characterized together with the coal blend used. Afterwards, the cokes produced in pilot oven were also characterized through several analyzes: proximate, ultimate, surface area, porosity, optical texture, reactivity on thermobalance, CRI/CSR e DI150/15. The results achieved showed that the insertion of charcoal on fraction G compromised less the quality parameters of cokes with charcoal. Contents up to 3% of charcoal were tolerated for this particle size distribution while for fraction F, only 1%. Another point noticed was that the coke produced with charcoal addition had no significant drop on sulfur content, with the exception of the coke sample with 10% of charcoal and fraction G. In all samples with charcoal it was also possible to see an increase on surface area in relation to the reference coke. The dynamic thermogravimetric tests also provided relevant information regarding to the temperatures and apparent reaction rates of cokes made with charcoal.
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Mandelík, Ladislav. "Kotel na spoluspalování plynů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378706.

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The topic of this diploma thesis is to design the co-firing of blast furnace gas and coke-oven gas. First, the stoichiometric calculation for the gas mixture was made. It is followed with the determination of basic measures of heating surfaces and with their thermal calculation. The part of the work is also the drawing documentation of the boiler.
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Lago, Diogo Theodoro. "Substituição do gás de coqueria por gás natural no sistema de Ignição de uma caldeira de produção de vapor /." Guaratinguetá, 2020. http://hdl.handle.net/11449/192357.

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Orientador: João Andrade de Carvalho
Resumo: Caldeiras de produção de vapor são utilizadas no setor siderúrgico para produzir e disponibilizar vapor para o processo de geração de energia e para os vários setores que necessitam de aquecimento durante a fabricação de seus produtos, como por exemplo, a vaporização de criogênicos para distribuição na planta. Portanto, caldeiras são equipamentos que necessitam ter confiabilidade. Atualmente, a CSN (siderúrgica brasileira de grande porte) possui duas caldeiras do início da década de 80 que somente partem e operam com uma chama piloto utilizando gás de coqueria, um gás que é subproduto da produção de coque em uma planta siderúrgica. Assim, para alcançar o objetivo de mais confiabilidade e flexibilidade na operação destas caldeiras, utilizou-se os métodos de índice Wobbe, corrigido pela pressão, e o método dos múltiplos índices de Weaver para avaliar a substituição do gás de coqueria pelo gás natural de modo que estas caldeiras possam operar com gás natural em caso de indisponibilidade de gás de coqueria. Mesmo que o aporte energético entre os gases seja diferente, este pode ser ajustado pela pressão do gás. A temperatura de chama adiabática não tem variação significativa, reduzindo-se apenas 1,4%. As emissões de fumaças e CO2 aumentam com a substituição, porém as emissões de NOx tem redução. A utilização do método dos múltiplos índices de Weaver para análise de intercambiabilidade demonstra que o gás natural não é um substituo para um queimador projetado para queimar gás de co... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Steam generators are used in the steel industry to produce and supply steam process for power generation and for other sectors that need heat to manufacture their products, such as the cryogenics vaporization for distribution in the facilities. Therefore, steam generators are equipment that need to have reliability. Currently, CSN (large Brazilian steelmaker) has two steam generators from the early 1980s that only startup and operate with a pilot flame using coke oven gas, a gas that is a byproduct of coke production at a steel plant. Thus, in order to achieve the working objective, reliability and flexibility in the operation of these steam generators, the Wobbe index method, with pressure-corrected, and the Weaver's multiple index method were used to verify the coke oven replacement for natural gas, and then, these steam generators can operate with natural gas in case of coke oven gas unavailability. Results shown in the same way that the energy increase between the gases are different can be adjusted in the pressure reduction. The flame temperature has insignificant variation, only 1.4%. Off gas and CO2 emissions increase with interchangeability. However, NOx emissions are reduced. The Weaver multiple index method for interchangeability analysis demonstrates that natural gas is not a gas to replace coke oven gas in a burner designed to burn coke oven gas, but if the burner is designed to natural gas, coke oven gas may be the substitute gas. Regarding the heat input and pri... (Complete abstract click electronic access below)
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Machara, Radek. "Návrh kotle na spoluspalování vysokopecního plynu a koksárenského plynu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319265.

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The diploma thesis deals with design of gas steam boiler with given parameters of steam. Blast furnace and coke oven gas are used as fuel. At the beginning of this work, both co-fired fuels are presented to us, their chemical analysis and stoichiometry are performed. The main part of the diploma thesis deals with the dimensioning of individual heat exchange surfaces such as steam superheaters, evaporators, economizers and air heaters. All heat exchange surfaces meet recommended parameters such as recommended steam rates, flue gas, etc. At the end, the total heat balance of the boiler is performed. Part of the work is also drawing documentation showing the main dimensions of the boiler. It is also indicated the connection of individual heat exchange surfaces.
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Books on the topic "Coke-oven"

1

Association, Coke Oven Managers'. Year-book of the Coke Oven Managers' Association. Mexborough: Coma (Year Book)Ltd, 1990.

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Ontario. Occupational Health and Safety Division. Regulation Respecting Coke Oven Emissions: Made Under the Occupational Health and Safety Act. S.l: s.n, 1987.

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Office, Central Statistical. Manufacture of Coke Oven Products. Stationery Office Books, 1996.

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Coke oven emissions from wet-coal charged by-product coke oven batteries--background information for proposed standards. Research Triangle Park, N.C: U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards, 1987.

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J, Gray Ralph, and Iron and Steel Society of AIME., eds. Coke oven wall pressures: Measurement, cause, and effect. Warrendale, PA: Iron and Steel Society, 1990.

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The 2006-2011 World Outlook for Tar Derivatives, Ammonia, Light Oil Derivations, and Coke Oven Gas Made in Coke Oven Establishments. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007-2012 World Outlook for Calcined Petroleum Coke Made in Coke Oven Establishments. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Calcined Petroleum Coke Made in Coke Oven Establishments. Icon Group International, Inc., 2005.

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Walter, Buschmann, ed. Koks, Gas, Kohlechemie: Geschichte und gegenständliche Überlieferung der Kohleveredelung. Essen: Klartext, 1993.

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The 2006-2011 World Outlook for Coke Made in Coke Oven Establishments Excluding Screenings and Breeze. Icon Group International, Inc., 2005.

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Book chapters on the topic "Coke-oven"

1

Arvela, P., O. Pelkonen, L. Pyy, E. Sotaniemi, K. Vähäkangas, and E. Yrjänheikki. "Antipyrine Metabolism in Coke Oven Workers." In Archives of Toxicology, 201–4. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-74936-0_41.

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Considine, Timothy J., Graham A. Davis, and Donita Marakovits. "Costs and Benefits of Coke Oven Emission Controls." In Modeling Environmental Policy, 103–22. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5372-0_5.

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Wang, Jiesheng, Xianwen Gao, Lin Liu, and Guannan Liu. "Integrated Intelligent Control Method of Coke Oven Collector Pressure." In Advances in Neural Networks – ISNN 2013, 246–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-39068-5_30.

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Marshall, A., G. E. Ibbotson, and T. R. Bott. "Case Study — Clean-Up of a Coke Oven Cooling System." In Fouling Science and Technology, 601–20. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2813-8_39.

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Ren, Binglang, Lin Lin, and Jingsong Wang. "High-Temperature Online Reforming of Converter Gas with Coke Oven Gas." In Energy Technology 2019, 57–68. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-06209-5_6.

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Camelli, Silvia, M. J. Rimoldi, A. Vázquez, and Darío Beltrán. "Evaluation of Coke Oven Regenerator Checkers after 40 years in Service." In Proceedings of the Unified International Technical Conference on Refractories (UNITECR 2013), 505–9. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118837009.ch87.

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Yu, Tianyang, Xiaobin Li, and Haiyan Sun. "A Location Estimation Method on Man and Vehicle in Coke Oven." In Lecture Notes in Electrical Engineering, 99–108. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6499-9_11.

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Maiti, Subodh Kumar, and Arindam Halder. "Treatment of Coke Oven Effluents by Duckweeds Ponds – A Laboratory Scale Study." In Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment, 435–39. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-18663-4_66.

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Das, S. P., S. Si, B. Prasad, J. K. Sahu, B. K. Panda, J. N. Tiwari, and N. Sahoo. "Development of Zero Expansion Silica Bricks for hot Repair of Coke Oven." In Proceedings of the Unified International Technical Conference on Refractories (UNITECR 2013), 511–15. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118837009.ch88.

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Gallienne, Nicolas, Matthieu Landreau, Eric Blond, Alain Gasser, and Daniel Isler. "Modelling of a Coke Oven Heating Wall Combining Periodic Homogenisation and Submodelling." In Proceedings of the Unified International Technical Conference on Refractories (UNITECR 2013), 845–50. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118837009.ch144.

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Conference papers on the topic "Coke-oven"

1

Jiang, Guozhang, Tingting He, Gongfa Li, and Jianyi Kong. "Intelligent control of coke oven." In 2010 International Conference on Logistics Systems and Intelligent Management (ICLSIM). IEEE, 2010. http://dx.doi.org/10.1109/iclsim.2010.5461371.

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Li, Gongfa, Jianyi Kong, Guozhang Jiang, Jintang Yang, Hegen Xiong, and Yu Hou. "Hybrid Intelligent Control of Coke oven." In International Conference on Intelligent Systems and Knowledge Engineering 2007. Paris, France: Atlantis Press, 2007. http://dx.doi.org/10.2991/iske.2007.219.

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Dicampli, James, Luis Madrigal, Patrick Pastecki, and Joe Schornick. "Aeroderivative Power Generation With Coke Oven Gas." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89601.

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A major environmental concern associated with integrated steel mills is the pollution produced in the manufacture of coke, an essential intermediate product in the reduction of iron ore in a blast furnace. Coke is produced by driving off the volatile constituents of the coal—including water, coke oven gas, and coal-tar—by baking the coal in an airless furnace at temperatures as high as 2,000 degrees Celsius. This fuses together the fixed carbon and residual ash. The coke oven gas (COG) byproduct, a combustible hydrogen and hydrocarbon gas mix, may be flared, recycled to heat the coal, or cleaned to be used as a fuel source to generate energy or used to produce methanol. There are several inherent problems with COG as a fuel for power generation, notably contaminants that would not be found in pipeline natural gas or distillate fuels. Tar, a by-product of burning coal, is plentiful in COG and can be detrimental to gas turbine hot gas path components. Particulates, in the form of dust particles, are another nuisance contaminant that can shorten the life of the gas turbine’s hot section via erosion and plugging of internal cooling holes. China, the world’s largest steel producing country, has approximately 1,000 coke plants producing 200MT/year of COG. GE Energy has entered into the low British thermal unit (BTU) gases segment in China with an order from Henan Liyuan Coking Co., Ltd. The gas turbines will burn 100% coke oven gas, which will help the Liyuan Coking Plant reduce emissions and convert low BTU gas to power efficiently. This paper will detail the technical challenges and solutions for utilization of COG in an aeroderivative gas turbine, including operational experience. Additionally, it will evaluate the economic returns of gas turbine compared to steam turbine power generation or methanol production.
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Li Gongfa, Kong Jianyi, Jiang Guozhang, Yang Jintang, Xiang Hegen, and Hou Yu. "Temperature Predictive Fuzzy Control of Coke Oven." In 2007 Chinese Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/chicc.2006.4347457.

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Córdova, Mariano de, and Jorge Madias. "COKE OVEN LIFE PROLONGATION – A MULTIDISCIPLINARY APPROACH." In 45º Redução / 16º Minério de Ferro / 3º Aglomeração. São Paulo: Editora Blucher, 2017. http://dx.doi.org/10.5151/2594-357x-26410.

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Xin-ming, Liu, Gao Xian-wen, Wang Wei, and Wang Jie-sheng. "Survey on coke oven gas-collector pressure control." In 2011 23rd Chinese Control and Decision Conference (CCDC). IEEE, 2011. http://dx.doi.org/10.1109/ccdc.2011.5968238.

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Becker, T., and M. Perkavec. "Environmental Aspects of a 10 MW Heavy Duty Gas Turbine Burning Coke Oven Gas With a Hydrogen Content of 60%." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-401.

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In a coking plant in which coal tar is processed coke oven gas occurs as a waste product. Coke oven gas can be used as an alternative fuel for a gas turbine, instead of natural gas, if it meets the local environmental regulations. As a result of higher flame temperature of coke oven gas caused by the hydrogen content, the NOx emission of a gas turbine burning coke oven gas is higher than in case of natural gas. In Germany a 10 MW gas fired gas turbine has to meet a NOx emission limit of 150 mg/Nm3 @ 15% O2 dry. To reach this goal in case of MS 3002, which is installed in the coking plant as reported in previous ASME paper, steam injection is necessary. NOx- and CO-emissions of a gas turbine are difficult to be predicted by calculation, therefore measurements had to be done to see how good the predictions were, that were made in face of the local regulations. This paper deals with the NOx- and CO-emissions of a coke oven gas fired gas turbine with and without steam injection in difference to natural gas fired gas turbine. It shows also significantly lower CO2-emissions, because coke oven gas contains less hydrocarbon which is a great benefit for the greenhouse problem. It illustrates the effect of power augmentation and discusses the different thermal efficiency with steam injection. This paper gives a short glance to the effects which influence the emissions, so that the specific problems caused by burning coke oven gas can be understood.
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Sokal, J. A., D. Miel)ynska, E. Siwinska, A. Bubak, and E. Smolik. "360. Environmental and Biological Monitoring of Coke-Oven Workers of Two Different Coke-Plants." In AIHce 1998. AIHA, 1999. http://dx.doi.org/10.3320/1.2762763.

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Kern, Wolfgang, Mario Petzsch, Antonio Esposito, and Helênio Resende Silva Júnior. "MODERN COKE OVEN GAS TREATMENT TECHNOLOGY AT A NEW COKE MAKING PLANT IN BRAZIL." In 45º Redução / 16º Minério de Ferro / 3º Aglomeração. São Paulo: Editora Blucher, 2017. http://dx.doi.org/10.5151/2594-357x-27097.

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He, Xuejun, and Rui Chen. "Optimal control system of coke oven collector pressure control." In Mechanical Engineering and Information Technology (EMEIT). IEEE, 2011. http://dx.doi.org/10.1109/emeit.2011.6023273.

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Reports on the topic "Coke-oven"

1

Gransden, J. F., J. T. Price, and M. A. Khan. Coking pressure and coke quality at different locations in an industrial oven. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/304396.

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Stuart, L. M. Innovative coke oven gas cleaning system for retrofit applications. Environmental Monitoring program. Volume 1 - sampling progrom report. Baseline Sampling Program report. Office of Scientific and Technical Information (OSTI), May 1994. http://dx.doi.org/10.2172/10163128.

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Kwasnoski, D. Innovative coke oven gas cleaning system for retrofit applications. Quarterly technical progress report No. 4, October 1, 1990 to December 31, 1990. Office of Scientific and Technical Information (OSTI), October 1993. http://dx.doi.org/10.2172/10109202.

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Stuart, L. M. Innovative coke oven gas cleaning system for retrofit applications: Environmental Monitoring Program. Baseline sampling program report: Volume 2, Appendix sections 1--7. Office of Scientific and Technical Information (OSTI), May 1994. http://dx.doi.org/10.2172/10162604.

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Stuart, L. M. Innovative coke oven gas cleaning system for retrofit applications: Environmental Monitoring Program. Volume 3, Appendix sections 8--14: Baseline Sampling Program report. Office of Scientific and Technical Information (OSTI), May 1994. http://dx.doi.org/10.2172/10162607.

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Hutny, W. P., J. A. MacPhee, and L. Giroux. Feasibility study on the effect of coal injection into the blast furnace on performance and emissions from the blast furnace-coke oven system. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/304634.

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Innovative coke oven gas cleaning system for retrofit applications. Office of Scientific and Technical Information (OSTI), September 1992. http://dx.doi.org/10.2172/7010320.

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Innovative coke oven gas cleaning system for retrofit applications. Office of Scientific and Technical Information (OSTI), October 1992. http://dx.doi.org/10.2172/7010333.

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9

Pipe technician killed by coke oven gas pipe explosion. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, March 2009. http://dx.doi.org/10.26616/nioshsface08mi001.

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Innovative coke oven gas cleaning system for retrofit applications. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/7010311.

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