Log in

Relevant bibliographies by topics / Coke-oven / Journal articles

To see the other types of publications on this topic, follow the link: Coke-oven.

Journal articles on the topic 'Coke-oven'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Coke-oven.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

2

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

3

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

4

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

5

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

6

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

7

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

9

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

11

Yue, Zhi Xin, and Juan Nong Che. "Dynamic Simulation of Heating Situation of Spraying Powder." Advanced Materials Research 750-752 (August 2013): 2031–34. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.2031.

Full text

Abstract:

According to the peculiarities of repairing of coke oven the spraying coating of normal temperature was used. The energy of the coke oven was used by the spraying powder to adhere to the wall of coke oven. The heating time equation of spraying powder has been deduced from thermal radiation equation, and the computer simulated calculation of heating time which is programmed is based on this equation. The possibility of spraying coating reacting in short time and adhering to the coke oven is speculated. The result of adhering of the spraying powder was proved.

APA, Harvard, Vancouver, ISO, and other styles

12

Tian, Zhongda, Shujiang Li, and Yanhong Wang. "Coke Oven Flue Temperature Control Based on Improved Implicit Generalized Predictive Control." Journal of Advanced Computational Intelligence and Intelligent Informatics 22, no. 2 (March 20, 2018): 203–13. http://dx.doi.org/10.20965/jaciii.2018.p0203.

Full text

Abstract:

The flue temperature of coke oven is an important factor that guarantees the coke yield, the coke quality and the energy consumption of coking production. The heating process of coke oven is an object with multi control variables, nonlinear and large lag. The traditional PID control algorithm cannot further improve the control performance of the coke oven system. An improved implicit generalized predictive control algorithm with better control performance is proposed in this paper. Through inputting control increment value constrained by soft coefficient matrix, the calculation of matrix inversion is avoided. Soft coefficient matrix can reduce the computation time and ensure the rapidity of the system. At the same time, the input weight control law with smoothing filter is used to suppress the overshoot of the system output. Simulation results show that the proposed control method in this paper has the good control performance with faster computation speed. The proposed control method solves the problem of time variation and disturbance of coke oven system. The control algorithm of the coke oven flue temperature in this paper is effective.

APA, Harvard, Vancouver, ISO, and other styles

13

He, Xue Jun, Zong Ren Gao, and Jun Zhang. "Development and Application on the Optimization Control System of the Gas Collector Pressure in Coke Oven." Advanced Materials Research 756-759 (September 2013): 415–19. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.415.

Full text

Abstract:

In view of the pressure control system of the large gas collector in coke oven, this paper puts forward a optimization control scheme of coke oven collector pressure intelligent decoupling control system. Using a variety of advanced control strategies based on the DCS , it develops a large coke oven collector pressure control system.The engineering application shows that the system design is versatile and effectiveness.

APA, Harvard, Vancouver, ISO, and other styles

14

Lei, Qi, and Fengmei Guo. "Assessment of Coke Oven Operating State Using Trend Analysis and Information Entropy." Journal of Advanced Computational Intelligence and Intelligent Informatics 24, no. 2 (March 20, 2020): 221–31. http://dx.doi.org/10.20965/jaciii.2020.p0221.

Full text

Abstract:

In the combustion process of a coke oven, it is crucial to evaluate the operating state to ensure control performance for the stabilization of the coke oven temperature. This paper presents an assessment method for a coke oven operating state based on the analysis of the mechanism. A coke oven, which is an integrator, is categorized into serial subsystems, which include two coking chambers and one combustion chamber. First, the raw gas temperature of every coking chamber is extracted online and is combined with the qualitative trend analysis that yields the feature point of the raw gas temperature. Subsequently, fuzzy method is presented to describe the uncertainty and evaluate the heat level of each subsystem. Finally, a comprehensive assessment of the operating state of the coke oven is performed by combining the weighted contribution of all subsystems, which is expressed by information entropy. Simulations and experiments demonstrate the validity of the method.

APA, Harvard, Vancouver, ISO, and other styles

15

NOMURA, Seiji, and Takashi ARIMA. "Coking Pressure and Coke Shrinkage in Coke Oven." Tetsu-to-Hagane 85, no. 4 (1999): 289–94. http://dx.doi.org/10.2355/tetsutohagane1955.85.4_289.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Pasternak, Oleksandr, Leonid Bannikov, and Anna Smirnova. "Coal Tar Viscosity when Dissolving Coke Oven Gas Deposits." Chemistry & Chemical Technology 11, no. 1 (March 15, 2017): 125–30. http://dx.doi.org/10.23939/chcht11.01.125.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Zhang, Zengliang, Baiquan Lin, Gemei Li, and Qing Ye. "Coke oven gas explosion suppression." Safety Science 55 (June 2013): 81–87. http://dx.doi.org/10.1016/j.ssci.2012.12.006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Platonov, O. I. "Desulfurization of coke-oven gas." Coke and Chemistry 50, no. 8 (August 2007): 226–31. http://dx.doi.org/10.3103/s1068364x07080054.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Vasil’ev, V. S. "Gas-tight coke-oven doors." Coke and Chemistry 54, no. 7 (July 2011): 249–55. http://dx.doi.org/10.3103/s1068364x11070106.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Binkova, B., J. Topinka, G. Mrafikova, D. GajdoSova, P. VidovS, I. Kalina, L. DobiaS, V. Peterka, and T. PilSik. "BIOMARKERS IN COKE OVEN STUDY." Epidemiology 9, Supplement (July 1998): S145. http://dx.doi.org/10.1097/00001648-199807001-00495.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Mishra, L., K. K. Paul, and S. Jena. "Characterization of coke oven wastewater." IOP Conference Series: Earth and Environmental Science 167 (July 23, 2018): 012011. http://dx.doi.org/10.1088/1755-1315/167/1/012011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Cheng, C. L. "Coke oven gas combustion systems." Fuel and Energy Abstracts 37, no. 3 (May 1996): 204. http://dx.doi.org/10.1016/0140-6701(96)88856-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Zhao, Guo Qi, Jian Zhang, Yi Kan Zhang, and Liang Xu. "The Analysis of Coke Pusher Ram's Vibratory Response with Different Coke Pushing Speed." Applied Mechanics and Materials 385-386 (August 2013): 208–11. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.208.

Full text

Abstract:

Coke pusher ram of coke pusher machine on 6 meters coke oven sometimes vibrates severely, even have strong resonance which can make the hole pusher machine vibrate. This vibration produce great harm on pusher ram and pusher machine and relevant equipment. This phenomenon is common, you can find it on many domestic pusher ram of pusher machine on coke oven. In order to improve the stability of pusher ram on the work, it is necessary to find some reasons which may lead to coke pusher ram’s vibratory.

APA, Harvard, Vancouver, ISO, and other styles

24

Li, Chao, Guoqiang Li, Shuting Zhang, Hongyu Wang, Ying Wang, and Yongfa Zhang. "Study on the pyrolysis treatment of HPF desulfurization wastewater using high-temperature waste heat from the raw gas from a coke oven riser." RSC Advances 8, no. 54 (2018): 30652–60. http://dx.doi.org/10.1039/c8ra06099a.

Full text

Abstract:

The thermogravimetric TG and single riser of industrial 4.3 m coke oven were used as pyrolysis reactors to study the new technology of pyrolysis treating desulfurization wastewater by waste heat solution of coke-oven raw gas.

APA, Harvard, Vancouver, ISO, and other styles

25

Martynova, A. Yu, V. A. Saraeva, and A. I. Larina. "MEASUREMENT OF THE CONTENT OF MONOETHANOLAMINE DURING THE CONTROL OF THE TECHNOLOGICAL PROCESS OF DESULFURIZATION AND IN THE ENVIRONMENTAL OBJECTS." Journal of Coal Chemistry 1 (2021): 28–36. http://dx.doi.org/10.31081/1681-309x-2021-0-2-28-36.

Full text

Abstract:

The problem of cleaning coke oven gas from sulfur compounds, despite their recent decrease in the raw material base of coking, remains relevant in connection with the requirements to reduce sulfur dioxide emissions into the atmosphere. When using monoethanolamine for the purification of coke oven gas from sulfur compounds, production workers are faced with the problems of determining the exact concentration both in solutions and in coke oven gas and in environmental objects. The article provides an overview of the currently existing methods for the quantitative determination of the content of monoethanolamine in liquid and gaseous media. The results of studies of the possibility of their use in the conditions of by-product coke production are presented, directions of improvement of the known methods are determined in order to eliminate the influence of accompanying components inherent in by-product coke production (in particular, ammonia, amines, phenols, etc.), which distort the analysis results. The authors describe the methods of increasing the selectivity of analytical methods for determining the content of monoethanolamine in: – coke oven gas - based on the absorption of the test substance from coke oven gas by a solution of orthoboric acid, followed by its determination in a solution with pnitrophenyldiazonium; – the air of the working area under the conditions of by-product coke production - it was proposed to eliminate the negative effect of hydrogen sulfide and phenol using an absorber containing a sodium hydroxide solution located in front of the absorber with a hydrochloric acid solution for monoethanolamine (a revised measurement procedure with additions set out in accordance with the requirements of the current legislation in the field of metrology and established metrological characteristics, agreed by the Chief Sanitary Doctor of Ukraine). The directions of research necessary for the development of a method for determining the content of monoethanolamine in process waters of coke-chemical production are outlined. Keywords: desulfurization, monoethanolamine, content determination, selectivity, ammonia, p-nitrophenyldiazonium, coke oven gas, complex compound, color intensity, photometry, measurements. Corresponding author A.Yu. Martynova, e-mail: alla_martynova_aisim@ukr.net

APA, Harvard, Vancouver, ISO, and other styles

26

Martynova, A. Yu, A. I. Larina, and V. A. Saraeva. "MEASUREMENT OF THE CONTENT OF MONOETHANOLAMINE DURING THE CONTROL OF THE TECHNOLOGICAL PROCESS OF DESULFURIZATION AND IN THE ENVIRONMENTAL OBJECTS." Journal of Coal Chemistry 1 (2021): 28–36. http://dx.doi.org/10.31081/1681-309x-2021-0-1-28-36.

Full text

Abstract:

The problem of cleaning coke oven gas from sulfur compounds, despite their recent decrease in the raw material base of coking, remains relevant in connection with the requirements to reduce sulfur dioxide emissions into the atmosphere. When using monoethanolamine for the purification of coke oven gas from sulfur compounds, production workers are faced with the problems of determining the exact concentration both in solutions and in coke oven gas and in environmental objects. The article provides an overview of the currently existing methods for the quantitative determination of the content of monoethanolamine in liquid and gaseous media. The results of studies of the possibility of their use in the conditions of by-product coke production are presented, directions of improvement of the known methods are determined in order to eliminate the influence of accompanying components inherent in by-product coke production (in particular, ammonia, amines, phenols, etc.), which distort the analysis results. The authors describe the methods of increasing the selectivity of analytical methods for determining the content of monoethanolamine in: – coke oven gas - based on the absorption of the test substance from coke oven gas by a solution of orthoboric acid, followed by its determination in a solution with pnitrophenyldiazonium; – the air of the working area under the conditions of by-product coke production - it was proposed to eliminate the negative effect of hydrogen sulfide and phenol using an absorber containing a sodium hydroxide solution located in front of the absorber with a hydrochloric acid solution for monoethanolamine (a revised measurement procedure with additions set out in accordance with the requirements of the current legislation in the field of metrology and established metrological characteristics, agreed by the Chief Sanitary Doctor of Ukraine). The directions of research necessary for the development of a method for determining the content of monoethanolamine in process waters of coke-chemical production are outlined. Keywords: desulfurization, monoethanolamine, content determination, selectivity, ammonia, p-nitrophenyldiazonium, coke oven gas, complex compound, color intensity, photometry, measurements. Corresponding author A.Yu. Martynova, e-mail: alla_martynova_aisim@ukr.net

APA, Harvard, Vancouver, ISO, and other styles

27

Kou, Zhou, Wang, Hong, Yao, Xu, and Wu. "Numerical Simulation of Effects of Different Operational Parameters on the Carbon Solution Loss Ratio of Coke inside Blast Furnace." Processes 7, no. 8 (August 9, 2019): 528. http://dx.doi.org/10.3390/pr7080528.

Full text

Abstract:

Carbon solution loss reaction of coke gasification is one of the most important reasons for coke deterioration and degradation in a blast furnace. It also affects the permeability of gas and fluids, as well as stable working conditions. In this paper, a three dimensional model is established based on the operational parameters of blast furnace B in Bayi Steel. The model is then used to calculate the effects of oxygen enrichment, coke oven gas injection, and steel scrap charging on the carbon solution loss ratio of coke in the blast furnace. Results show that the carbon solution loss ratio of coke gasification for blast furnace B is almost 20% since the results of a model are probably only indicative. The oxygen enrichment and the addition of steel scrap can reduce the carbon solution loss ratio with little effect on the working condition. However, coke oven gas injection increases the carbon solution loss ratio. Therefore, coke oven gas should not be injected into the blast furnace unless the quality of the coke is improved.

APA, Harvard, Vancouver, ISO, and other styles

28

Konieczyński, Jan, Elwira Zajusz-Zubek, and Magdalena Jabłońska. "The Release of Trace Elements in the Process of Coal Coking." Scientific World Journal 2012 (2012): 1–8. http://dx.doi.org/10.1100/2012/294927.

Full text

Abstract:

In order to assess the penetration of individual trace elements into the air through their release in the coal coking process, it is necessary to determine the loss of these elements by comparing their contents in the charge coal and in coke obtained. The present research covered four coke oven batteries differing in age, technology, and technical equipment. By using mercury analyzer MA-2 and the method of ICP MS As, Be, Cd, Co, Hg, Mn, Ni, Se, Sr, Tl, V, and Zn were determined in samples of charge coal and yielded coke. Basing on the analyses results, the release coefficients of selected elements were determined. Their values ranged from 0.5 to 94%. High volatility of cadmium, mercury, and thallium was confirmed. The tests have shown that although the results refer to the selected case studies, it may be concluded that the air purity is affected by controlled emission occurring when coke oven batteries are fired by crude coke oven gas. Fugitive emission of the trace elements investigated, occurring due to coke oven leaks and openings, is small and, is not a real threat to the environment except mercury.

APA, Harvard, Vancouver, ISO, and other styles

29

Miroshnichenko, I. V., V. V. Gavrilyuk, D. V. Miroshnichenko, and I. V. Shulga. "DISTRIBUTION OF CALORIFIC VALUE BY COKE SIZE CLASS." Journal of Coal Chemistry 2 (2021): 4–14. http://dx.doi.org/10.31081/1681-309x-2021-0-2-4-14.

Full text

Abstract:

As is known, the specificity of the layered coking process causes the development of fracturing, which determines the formation of the granulometric composition of the coke. The article presents and analyzes data on the physicochemical properties of coke of various size classes. The expediency of studying the values of the calorific value for different classes of the size of blast furnace coke has been substantiated. For this purpose, ramp coke was taken from batteries that were significantly different in size. In particular, coke oven battery I has almost twice the useful volume of coking chambers and, accordingly, the design capacity than coke oven battery II. In addition, the height of the chambers of coke oven battery I is 7000 mm, and that of coke oven battery II is 4300 mm. The above circumstances must be taken into account when evaluating the heat of combustion of various size classes of blast furnace coke. The composition of the investigated charge consisted of classic grades of coals, which are characterized by their inherent set of quality indicators. The charge for battery I was characterized by a lower burst pressure. It is shown that the value of the highest calorific value of wet quenching blast furnace coke undergoes significant changes depending on the size. Size classes less than 25 mm are characterized by maximum values of the gross calorific value, which reach 33.0 MJ/kg and more. The level of "readiness" of coke, expressed by the value of the yield of volatile substances and the actual density of the coke, significantly affects the value of the highest calorific value. Less "finished" blast furnace coke is characterized by higher values of the gross calorific value for all particle sizes. It is concluded that the value of the highest calorific value of blast furnace coke can serve as a criterion (in addition to those already available) for assessing the degree of "readiness" of blast furnace coke. Keywords: coal, coke, coke size classes, degree of readiness, heat of combustion. Corresponding author Miroshnichenko I.V., e-mail: igor.miroshnichenko@azovstal.com.ua

APA, Harvard, Vancouver, ISO, and other styles

30

Zhang, Yuan Yuan, and Fang Qin Cheng. "The Analysis of Energy Saving in the Process of Producing Mineral Wool: a Case Study in Shanxi Province." Advanced Materials Research 608-609 (December 2012): 1271–75. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.1271.

Full text

Abstract:

Melting is the most energy consuming process in the manufacture of mineral wool. This paper dealt with evaluation of two types of energy saving measures in the process of producing mineral wool. In order to detect the energy saving measures that can also provide economic profits, the study examined the following measures: utilization of flue gas heat, thermal power supplement with coke oven gas. The analytical method used for energy saving were material balance and energy balance. It is found that the most effective energy saving measure is thermal power supplement with coke oven gas. The maximum energy saving is up to 39.3% when coke/coke oven gas is 50:1. The economic cost of saving runs to 3.017 million RMB every year.

APA, Harvard, Vancouver, ISO, and other styles

31

Fidchunov, A. L., and T. I. Shulga. "THE IMPORTANCE OF REPAIRS FOR MAINTAINING THE PROPER TECHNICAL CONDITION OF FIXED ASSETS OF COKE-CHEMICAL ENTERPRISES (review)." Journal of Coal Chemistry 2 (2021): 14–21. http://dx.doi.org/10.31081/1681-309x-2021-0-2-14-21.

Full text

Abstract:

Due to the excess operating life of the operating coke oven batteries in Ukraine, it is necessary to systematically carry out repairs to maintain the proper technical condition of the fixed assets of the coke oven production, primarily coke oven batteries. The article provides definitions of such concepts as the system of scheduled preventive maintenance of industrial buildings and structures, the system of maintenance and repair of mechanical equipment, maintenance, current repairs, major repairs, and the like. A classification of coke oven masonry repairs according to the scope of work, conditions and time of performance is stated, as well as documents regulating the procedure for their implementation are named. A brief overview of the types of repairs that are used to maintain the technical condition of coke oven batteries: preventive and current repairs (gunning, etc.), Medium repairs (partial relocation of the heads of the regenerator walls, heating walls and replacement of the reflowed packing), overhaul, which consists of partial re-laying a group of furnaces in a cold state (repairing furnace masonry with shifting walls to different depths, repairing and replacing reinforcement, repairing and replacing chimney and gas supply fittings). The main defects of coke oven battery masonry, which are subject to major repairs, are listed. It is noted that the cold group partial relocation of the furnaces is performed with gradual cooling and heating, which requires a complete or partial cessation of operation of the chambers adjacent to the ones being repaired (buffer and semi-buffer furnaces). It is emphasized that the work performed as part of the overhaul is determined by the technical condition of the battery, regardless of its age. It is noted that in modern conditions, the most effective is the relocation of the extreme and pre-extreme verticals of the coking chamber to a depth of 4-6 verticals on both sides without disconnecting the repaired chamber from heating. Keywords: coke oven battery, service life, technical condition, types of repairs, regulatory documentation. Corresponding author Fidchunov A.L., e-mail: fich.aleks@gmail.com

APA, Harvard, Vancouver, ISO, and other styles

32

Tiwari, Hari Prakash, Rajesh Kumar, Arunabh Bhattacharjee, Ravi Kumar Lingam, Abhijit Roy, and Shambhu Tiwary. "Prediction of operating parameters range for ammonia removal unit in coke making by-products." Metallurgical Research & Technology 115, no. 2 (2018): 211. http://dx.doi.org/10.1051/metal/2017102.

Full text

Abstract:

Coke oven gas treatment plants are well equipped with distributed control systems (DCS) and therefore recording the vast amount of operational data efficiently. Analyzing the stored information manually from historians is practically impossible. In this study, data mining technique was examined for lowering the ammonia concentration in clean coke oven gas. Results confirm that concentration of ammonia in clean coke oven gas depends on the average PCDC temperature; gas scrubber temperatures stripped liquor flow, stripped liquor concentration and stripped liquor temperature. The optimum operating ranges of the above dependent parameters using data mining technique for lowering the concentration of ammonia is described in this paper.

APA, Harvard, Vancouver, ISO, and other styles

33

Be´nard, C., and M. M. Rosset-Loue¨rat. "Identification of a Simulation Model and a Control Model for a Coke Oven Battery Operating Under Transient Conditions." Journal of Dynamic Systems, Measurement, and Control 114, no. 3 (September 1, 1992): 444–53. http://dx.doi.org/10.1115/1.2897367.

Full text

Abstract:

This work addresses the problem of identifying a model of a coke oven plant that would allow its control under unsteady operating conditions. Knowing that coal thermal kinetics in the oven are the most significant factors affecting the resulting coke quality, considering that control is global since all the heating chambers of a battery are supplied by the same feeder, and that constraints arising in the process involve local and global variables, our study is based on the use of two dynamic models: a detailed elementary model of one oven and a global model of the plant. The first model is deduced from a detailed physical model and gives, for an elementary oven, the relationship between the heating power input and the coke temperature output or coke-gas yield indicator. It is tested by comparison with measurement performed at the Sollac-Fos plant. The second model is a lumped state representation that describes, with a few state variables, the evolution of the two batteries. Its parameters are identified with the help of measurements performed at the Sollac-Fos plant.

APA, Harvard, Vancouver, ISO, and other styles

34

Hao, Dan Dan, Wen Sheng Liu, Le Ping Dang, and Hong Yuan Wei. "Numerical Simulation of a Coke Oven." Advanced Materials Research 479-481 (February 2012): 586–89. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.586.

Full text

Abstract:

At present, the CFD numerical simulation, combined with an experiments involving heat transfer has become an important approach to studying coal carbonization. The aim of this paper is to illustrate how a standard CFD package may be modiﬁed so it can be used to simulate temperature distribution, coking time and carbonization processes that occur in coke oven charge. Content of volatile matters and moisture have important influence on heating rate during carbonization. Further, heating rate have effects on char structure an inner coking condition, as well as the carbonization time. In addition, furnace wall temperature have important effects on carbonization, because they can change the coking time. Our simulation results for the coke oven model are in agreement with experimental and virtual data.

APA, Harvard, Vancouver, ISO, and other styles

35

Li, Gongfa. "Hybrid Intelligent Control of Coke oven." IEIT Journal of Adaptive and Dynamic Computing; 2011, no. 4 (2011): 25. http://dx.doi.org/10.5813/www.ieit-web.org/ijadc/2011.4.4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Kalina, Ivan, Peter Brezáni, Dagmar Gajdošová, Blanka Binková, Ján Šalagovič, Viera Habalová, Gabriela Mračková, Lubomı́r Dobiáš, and Radim J. Šrám. "Cytogenetic monitoring in coke oven workers." Mutation Research/Genetic Toxicology and Environmental Mutagenesis 417, no. 1 (September 1998): 9–17. http://dx.doi.org/10.1016/s1383-5718(98)00089-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Kazak, L. A., L. F. Syrova, N. F. Moralina, V. M. Li, and V. N. Romanov. "Final cooling of coke-oven gas." Coke and Chemistry 53, no. 11 (November 2010): 405–9. http://dx.doi.org/10.3103/s1068364x10110037.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Bannikov, L. P. "BTX Capture from coke-oven gas." Coke and Chemistry 57, no. 11 (November 2014): 440–43. http://dx.doi.org/10.3103/s1068364x14110039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Li, Gongfa, Peixin Qu, Jianyi Kong, Guozhang Jiang, Liangxi Xie, Po Gao, Zehao Wu, and Yuan He. "Coke Oven Intelligent Integrated Control System." Applied Mathematics & Information Sciences 7, no. 3 (May 1, 2013): 1043–50. http://dx.doi.org/10.12785/amis/070323.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Stewen, W., and W. Rohde. "Coke oven, level of the art." Revue de Métallurgie 89, no. 12 (December 1992): 1063–74. http://dx.doi.org/10.1051/metal/199289121063.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Ogata, Y., M. Higuchi, T. Komatsu, Y. Ohta, S. Watanabe, K. Ohki, and Y. Konno. "Technology for automating coke oven machines." Revue de Métallurgie 96, no. 3 (March 1999): 309–20. http://dx.doi.org/10.1051/metal/199996030309.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Petit, E., J. P. Gaillet, N. Bastian, and J. L. Karst. "Measurements of coke oven wall deflections." Revue de Métallurgie 100, no. 3 (March 2003): 251–59. http://dx.doi.org/10.1051/metal:2003173.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Forni, A. "Cytogenetic studies in coke oven workers." Toxicology Letters 88, no. 1-3 (November 1996): 185–89. http://dx.doi.org/10.1016/0378-4274(96)03736-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Guelton, Nicolas, and Tatiana V. Rozhkova. "Prediction of coke oven wall pressure." Fuel 139 (January 2015): 692–703. http://dx.doi.org/10.1016/j.fuel.2014.09.042.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Braekman-Danheux, Colette, René Cyprès, André Fontana, and Michel van Hoegaerden. "Coal hydromethanolysis with coke-oven gas." Fuel 74, no. 1 (January 1995): 17–19. http://dx.doi.org/10.1016/0016-2361(94)p4324-u.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

LAURIER, G., P. READYHOUGH, and G. SULLIVAN. "Heat transfer in a coke oven." Fuel 65, no. 9 (September 1986): 1190–95. http://dx.doi.org/10.1016/0016-2361(86)90228-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Haugen, Aage, Georg Becher, Christel Benestad, Kirsi Vahakangas, Glennwood E. Trivers, and Curtis C. Harris. "Biological monitoring among coke oven workers." European Journal of Cancer and Clinical Oncology 21, no. 11 (November 1985): 1388. http://dx.doi.org/10.1016/0277-5379(85)90388-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

TSUYUGUCHI, Michio, and Hiromichi TAKAHASHI. "Relationship between coke quality and width of coke oven chamber." Journal of the Fuel Society of Japan 67, no. 8 (1988): 676–82. http://dx.doi.org/10.3775/jie.67.8_676.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Vashchilin, S. V., T. V. Osipovich, T. A. Ermolenko, E. I. Kotlyarov, V. A. Kornilova, and L. S. Chefranova. "Improved cost calculations of coke-oven gas at coke plants." Coke and Chemistry 52, no. 4 (April 2009): 186–88. http://dx.doi.org/10.3103/s1068364x09040127.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Lipunov, P. V., S. V. Motrich, V. I. Markov, and N. G. Chura. "Temperature regulation during coke-battery drying by coke-oven gas." Coke and Chemistry 57, no. 10 (October 2014): 408–12. http://dx.doi.org/10.3103/s1068364x14100032.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!