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Journal articles on the topic 'Coke ash'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Gulyaev, Vitaly, Vadim Barsky, and Natalya Gurevina. "Effect of Total Ash Content and Coals Ash Composition on Coke Reactivity." Chemistry & Chemical Technology 3, no. 3 (2009): 231–36. http://dx.doi.org/10.23939/chcht03.03.231.

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The article deals with the hypothesis of the influence of coals mineral components on coke reactivity. It has been shown that the reaction between carbon and carbon dioxide proceeds in kinetic area and its rate depends upon total ash content of coked coal. The data showing catalyst effect of coal mineral components upon their organic mass pyrolysis and consequently upon coke reactivity have been presented.

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2

Fan, Yaoyao, Ruiqi Wang, Xiaolin Li, et al. "A high-efficiency utilization of coke-oven plant coke ash for the preparation of coke ash emulsion slurry." Fuel 245 (June 2019): 139–47. http://dx.doi.org/10.1016/j.fuel.2019.02.068.

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3

Chakraborty, B., B. N. Prasad, N. K. Ghosh, and L. Parthasarathy. "Microstrength Characteristics of High Ash Coke." ISIJ International 38, no. 8 (1998): 807–11. http://dx.doi.org/10.2355/isijinternational.38.807.

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4

Li, Jiazhou, Jiansheng Zhang, Jiantao Zhao, and Yitian Fang. "Effect of Na2O in Ash Composition on Petroleum Coke Ash Fusibility." Energy & Fuels 33, no. 10 (2019): 9681–89. http://dx.doi.org/10.1021/acs.energyfuels.9b02317.

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5

Ning, Zhe, Ke Qiang Xie, Wen Hui Ma, Kui Xian Wei, Yang Zhou, and Yang Yang. "The Investigation of Coke Breeze Demineralization on Temperature." Advanced Materials Research 581-582 (October 2012): 1123–26. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.1123.

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The high ash coke breeze was leaching by two-stage chemical leaching. X-ray diffraction (XRD) and X-Ray Fluorescence (XRF) were employed to characterize the mineral phase and the element content respectably. More than 80% ash has been removed from the coke breeze by two-stage leaching. The removal of Si and Al was significantly affected by the temperature of alkali leaching. The mineral phase of the result coke breeze is similar to that of the raw ash except with cristobalite and sodium mica.

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6

Fan, Yaoyao, Ruixin Wang, Jinyan Sun, Jin Xiang, Ruiqi Wang, and Huanwu Sun. "An effective recycle way of waste coke ash and coking wastewater for preparing coke ash coking wastewater slurry." Science of The Total Environment 742 (November 2020): 140581. http://dx.doi.org/10.1016/j.scitotenv.2020.140581.

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7

Xing, X., S. Jahanshahi, J. Yang, and O. Ostrovski. "Dissolution of carbon from coke and char in liquid Fe-C alloys." Archives of Materials Science and Engineering 1, no. 92 (2018): 22–27. http://dx.doi.org/10.5604/01.3001.0012.5508.

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Purpose: The aim of this paper was to study dissolution of carbon from carbonaceous materials of different origin with different morphology, microtexture and microstructure in the liquid Fe-C alloys. Design/methodology/approach: The dissolution of carbon from coke, char and glassy carbon in the molten Fe-C alloy (initial carbon concentration 2.46 wt.%) at 1350°C was measured and compared with that from graphite. The dissolution of carbon from demineralised coke and char in the Fe-C solution was also examined to study the effect of mineral matter on the carbon dissolution. Findings: The concent

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8

Li, Qiu Yi, Xiang Ning Yang, Song Gao, and Lei Zhang. "Experimental Research on Environmental Friendly Ash Aerated Concrete." Advanced Materials Research 168-170 (December 2010): 751–54. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.751.

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Aerated concrete is kind of normal silicate products, which is made by hydration of lime, cement, gypsum fly ash/sand, forming agent. And it has become the major wall material of frame structure caused by its characteristics of light weigh, high strength, and heat insulation. Petroleum coke is the by-product of delayed coking system in oil refinery. Oil refinery in coast area of east China mainly exploits high-sulfur crude oil from Middle East. The petroleum coke contains even 5-8% sulphur, and calcium injection desulphurization is usually employed to reduce the SO2 emission, and leads to that

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9

Park, Woosung, and Myongsook S. Oh. "Slagging of petroleum coke ash using Korean anthracites." Journal of Industrial and Engineering Chemistry 14, no. 3 (2008): 350–56. http://dx.doi.org/10.1016/j.jiec.2007.12.004.

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10

NISHI, Tetsu, Hiroshi HARAGUCHI, and Toshiaki OKUHARA. "Deterioration of coke by ash-carbon reaction in coke during high-temperature treatment." Journal of the Fuel Society of Japan 69, no. 2 (1990): 126–33. http://dx.doi.org/10.3775/jie.69.126.

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11

Li, Jiazhou, Xiaodong Chen, Yubo Liu, Qingan Xiong, Jiantao Zhao, and Yitian Fang. "Effect of Ash Composition (Ca, Fe, and Ni) on Petroleum Coke Ash Fusibility." Energy & Fuels 31, no. 7 (2017): 6917–27. http://dx.doi.org/10.1021/acs.energyfuels.7b00850.

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12

Konstanciak, Anna. "High-Temperature Testing of the Properties of Blast Furnace Coke." Materials Science Forum 638-642 (January 2010): 2616–21. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.2616.

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The article describes the behaviour of coke in the blast furnace. Factors, which cause weakening and degradation of coke lumps at temperatures above 1300°C have been analyzed. On the basis of preliminary testing of samples taken from a blast furnace at different distances from the tuyère outlet and tests for thermo-abrasion ξ, the advisability of using the pre-tuyère chamber for the assessment of coke quality at high temperatures has been indicated. Thermodynamic calculations for the determination of the chemical composition of the products of reaction of coke ash mineral substances with eleme

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13

Anthony, E. J., F. Preto, L. Jia, and J. V. Iribarne. "Agglomeration and Fouling in Petroleum Coke-Fired FBC Boilers." Journal of Energy Resources Technology 120, no. 4 (1998): 285–92. http://dx.doi.org/10.1115/1.2795049.

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Experiments have been done subjecting ashes from industrial-scale FBC boilers to sulphating conditions in an oven for up to 105 days. These show that sulphation by itself causes agglomeration in the virtual absence of V, K, and Na, the elements normally associated with ash softening and classical fouling. In addition, it has been demonstrated that sulphation goes to completion over long periods of time and, at a specific level which differs from one ash to another, results in agglomeration. These experiments have also shown that there is a size range (75–300 μm) in which the agglomeration is w

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14

Meng, Qingbo, Fanyu Meng, Li Zhan, Xiuli Xu, Jianglong Yu, and Qi Wang. "Attempts to replace nut coke with semi-coke for blast furnace ironmaking." Metallurgical Research & Technology 118, no. 3 (2021): 301. http://dx.doi.org/10.1051/metal/2021026.

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Low coke rate for blast furnace operation has been required in response to the rising cost of coking coals. To extend the utilisation of coal resources, semi-coke has been introduced to blast furnace ironmaking process in recent years, however, there are still many issues unclear about the effect of semi-coke on ironmaking process. In this study, the possibilities of using semi-coke as alternative fuel for nut coke were studied. The characteristics of semi-coke including mechanical strength, high-temperature strength/reactivity, carbon gasification as well as direct reduction were studied and

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15

Ueki, Yasuaki, Koki Teshima, Ryo Yoshiie, and Ichiro Naruse. "Ash Particle Behaviors during Combustion and Gasification of Coke." ISIJ International 60, no. 7 (2020): 1427–33. http://dx.doi.org/10.2355/isijinternational.isijint-2019-692.

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16

Li, Jiazhou, Jiantao Zhao, Xin Dai, Jin Bai, and Yitian Fang. "Effect of Vanadium on the Petroleum Coke Ash Fusibility." Energy & Fuels 31, no. 3 (2017): 2530–37. http://dx.doi.org/10.1021/acs.energyfuels.6b02858.

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17

JANG, H., and T. ETSELL. "Mineralogy and phase transition of oil sands coke ash." Fuel 85, no. 10-11 (2006): 1526–34. http://dx.doi.org/10.1016/j.fuel.2005.12.013.

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18

Wang, Yueming, Jianqun Wu, Xiaolong Li, Dunxi Yu, Minghou Xu, and Jost O. L. Wendt. "Ash aerosol partitioning and ash deposition during the combustion of petroleum coke/natural gas mixtures." Fuel 256 (November 2019): 115982. http://dx.doi.org/10.1016/j.fuel.2019.115982.

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19

Chen, Guan Yu, and Wei Hsing Huang. "Investigation on Blending CFB Ash with Blast Furnace Slag as Replacement for Portland Cement Used in Concrete Binders." Advanced Materials Research 723 (August 2013): 623–29. http://dx.doi.org/10.4028/www.scientific.net/amr.723.623.

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Circulating Fluidized Bed (CFB) Boiler is a means of energy-generating process by burning petroleum coke. In order to avoid blazed petroleum coke with high sulfur content from emitting overdosed sulfur dioxide, limestone is introduced in the boiler for desulfuration. The residue collected from the boiler is called CFB ash. In accordance with different boiler position, CFB ashes can be classified as fly ash and bed ash, and both have similar chemical compositions, with high contents of gypsum and calcium oxide. In this study, CFB ash (fly ash) is mixed with blast furnace slag (BFS) as a substit

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20

Duan, Qing Wen, Rong Zhen Liu, Hai Yun Jin, Jian Feng Yang, and Zhi Hao Jin. "Fabrication of Porous SiC/SiAlON Composites Using Semi Coke and Fly Ash as Raw Material." Materials Science Forum 724 (June 2012): 347–50. http://dx.doi.org/10.4028/www.scientific.net/msf.724.347.

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Porous SiC/SiAlON ceramics were fabricated by carbothermal reduction method from raw materials of fly ash and semi coke in nitrogen atmosphere. The results showed that composites were composed by multi-structure of SiC, Ca-SiAlON and AlN phases. With the increase of semi coke contents, the contents of Ca-Sialon increased. The fracture mode of this material was intergranular. The results also showed that micro area hereditary of semi coke particles was observed in the morphology of this material. The morphology of this material was composed by nanosized SiC and plate like Ca-SiAlON. The median

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21

Deng, Yong, Kexin Jiao, Zhengjian Liu, Jianliang Zhang, and Qiangjian Song. "Effects of Coke Ash on Erosion of Carbon Composite Brick." ISIJ International 59, no. 3 (2019): 412–20. http://dx.doi.org/10.2355/isijinternational.isijint-2018-562.

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22

Li, Jiazhou, Xiaoyu Wang, Bing Wang, Jiantao Zhao, and Yitian Fang. "Effect of Silica and Alumina on Petroleum Coke Ash Fusibility." Energy & Fuels 31, no. 12 (2017): 13494–501. http://dx.doi.org/10.1021/acs.energyfuels.7b02843.

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23

Nag, Debjani, S. K. Haldar, P. K. Choudhary, and P. K. Banerjee. "Prediction of Coke CSR from Ash Chemistry of Coal Blend." International Journal of Coal Preparation and Utilization 29, no. 5 (2009): 243–50. http://dx.doi.org/10.1080/19392690903218117.

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24

Monaghan, Brian Joseph, Phillip Brian Drain, Michael Wallace Chapman, and Robert John Nightingale. "Reactivity of Coke Ash on Aluminosilicate Blast Furnace Hearth Refractories." ISIJ International 54, no. 4 (2014): 810–19. http://dx.doi.org/10.2355/isijinternational.54.810.

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25

TAKAMARU, Hiroki, Yoshiaki KASHIWAYA, and Kuniyoshi ISHII. "In Situ Observation of Coke Gasification and Behavior of Ash." Tetsu-to-Hagane 90, no. 7 (2004): 472–79. http://dx.doi.org/10.2355/tetsutohagane1955.90.7_472.

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26

Mota, O. D. S., and J. B. L. M. Campos. "Combustion of coke with high ash content in fluidised beds." Chemical Engineering Science 50, no. 3 (1995): 433–39. http://dx.doi.org/10.1016/0009-2509(94)00242-j.

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27

Wang, Kun, Qiao Wen Yang, Chuan Liu, Hui Zhao, Gan Chen, and Shi Wei Wang. "Study of Deashing and Activation on the Coke Fines and Semi-Cokes Based on Properties of Composite Materials." Advanced Materials Research 600 (November 2012): 178–81. http://dx.doi.org/10.4028/www.scientific.net/amr.600.178.

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Coke fines and semi-cokes have high ash content, low specific surface area and pore volume. In order to increase the properties of the sample and make the activated composite materials, it must be deashed and activated. In this research, the deashing experiment of the raw materials by different concentration of HNO3 and KOH was tested, then the material was activated in high temperature steam. From the FTIR test, we can acquire the content of the surface functional groups, such as carboxyl and hydroxyl. The specific surface area, pore size, volume of the material were determinated by using the

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28

Anthony, E. J., L. Jia, S. M. Burwell, J. Najman, and E. M. Bulewicz. "Understanding the Behavior of Calcium Compounds in Petroleum Coke Fluidized Bed Combustion (FBC) Ash." Journal of Energy Resources Technology 128, no. 4 (2006): 290–99. http://dx.doi.org/10.1115/1.2358144.

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With growing understanding of the differences between solid residues from the fluidized bed combustion of petroleum coke and of coal, the significance of fuel-derived and sorbent-derived components of the ash has become clearer. It is well documented that hydration of the ashes is necessary prior to disposal or utilization or as a reactivation method. Initially, hydration of the lime was thought to involve water reacting only with CaO to form Ca(OH)2 but when the free lime content of the ashes is looked at before and after hydration, it is apparent that the process is more complex. Detailed an

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29

Lin, Kae Long, Ta-Wui Cheng, Chih-Hsuan Ho, Yu-Min Chang, and Kang-Wei Lo. "Utilization of Circulating Fluidized Bed Fly Ash as Pozzolanic Material." Open Civil Engineering Journal 11, no. 1 (2017): 176–86. http://dx.doi.org/10.2174/1874149501711010176.

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A circulating fluidized bed (CFB) boiler generates energy by burning petroleum coke. Because burnt petroleum coke has a high sulfur content, limestone is added to the boiler to reduce the emittance of sulfur dioxide through desulfuration. The residue collected from the boiler is called CFB ash. CFB boilers in Taiwan can produce 328,000 tonnes of CFB fly ash per year. In this study, the pozzolanic characteristics of CFB fly ash were investigated by blending CFB fly ash and ordinary Portland cement (OPC). The CFB fly ash was mainly composed of CaO, SO3, and SiO2 in concentrations of 37.8%, 9.2%,

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30

Sajdak, Marcin, and Łukasz Smędowski. "Application of multivariate data analysis in the construction of predictive model for the chemical properties of coke." Contemporary Trends in Geoscience 2, no. 1 (2013): 67–74. http://dx.doi.org/10.2478/ctg-2014-0010.

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ABSTRACT The aim of this work was to develop a statistical model which can predict values describing chemical composition of cokes performed in industrial scale. This model was developed on the basis of data that were taken from the production system used in the one of Polish coking plant. Elaborated equation include quality parameters of initial coals that form coal blends as well as contribution of additions such as coke and petrochemical coke. These equations allow to predict chemical composition of coke, e.g. contributions of: sulphur, ash, phosphorus and chlorine within the coke. A model

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31

Li, Wei, Ben Wang, Jun Nie, et al. "Effect of the Composition of Additive Ash on the Thermal Behavior of Petroleum Coke Ash during Gasification." Energy & Fuels 34, no. 10 (2020): 12126–34. http://dx.doi.org/10.1021/acs.energyfuels.0c01783.

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32

Zhang, Heng, Junguo Li, Xin Yang, et al. "Influence of coal ash on potassium retention and ash melting characteristics during gasification of corn stalk coke." Bioresource Technology 270 (December 2018): 416–21. http://dx.doi.org/10.1016/j.biortech.2018.09.053.

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33

Pan, Shu-Yuan, Barry Lai, and Yang Ren. "Mechanistic insight into mineral carbonation and utilization in cement-based materials at solid–liquid interfaces." RSC Advances 9, no. 53 (2019): 31052–61. http://dx.doi.org/10.1039/c9ra06118e.

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34

Ulanovskiy, M. L. "Ash basicity and the coke characteristics CRI and CSR: A review." Coke and Chemistry 57, no. 3 (2014): 91–97. http://dx.doi.org/10.3103/s1068364x14030089.

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35

Li, Jiazhou, Jiantao Zhao, Xin Dai, Jin Bai, and Yitian Fang. "Correction to Effect of Vanadium on the Petroleum Coke Ash Fusibility." Energy & Fuels 31, no. 5 (2017): 5710. http://dx.doi.org/10.1021/acs.energyfuels.7b01137.

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36

Liu, Yan, Dongping Duan, and Yong Li. "Binders and the Bonding Mechanism of Fly Ash and Coke Pelletization." International Journal of Coal Preparation and Utilization 39, no. 3 (2017): 159–68. http://dx.doi.org/10.1080/19392699.2017.1310103.

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37

Drain, Phillip Brian, Brian Joseph Monaghan, Michael Wallace Chapman, and Robert John Nightingale. "Reactivity of Coke Ash on Alumina-Carbon Blast Furnace Hearth Refractories." ISIJ International 55, no. 9 (2015): 1849–58. http://dx.doi.org/10.2355/isijinternational.isijint-2014-734.

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38

Li, Jiazhou, Qing'an Xiong, Jie Shan, Jiantao Zhao, and Yitian Fang. "Investigating a high vanadium petroleum coke ash fusibility and its modification." Fuel 211 (January 2018): 767–74. http://dx.doi.org/10.1016/j.fuel.2017.09.110.

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39

Xiong, Qing-an, Jiazhou Li, Shuai Guo, Guang Li, Jiantao Zhao, and Yitian Fang. "Ash fusion characteristics during co-gasification of biomass and petroleum coke." Bioresource Technology 257 (June 2018): 1–6. http://dx.doi.org/10.1016/j.biortech.2018.02.037.

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40

McCarthy, Fiona, Veena Sahajwalla, John Hart, and N. Saha-Chaudhury. "Influence of ash on interfacial reactions between coke and liquid iron." Metallurgical and Materials Transactions B 34, no. 5 (2003): 573–80. http://dx.doi.org/10.1007/s11663-003-0026-9.

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41

Mirko, V. A., V. D. Muzychuk, G. L. Tsymbal, and A. I. Onishchenko. "Experience in operating blast furnaces with a predicted coke ash content." Metallurgist 29, no. 6 (1985): 196–98. http://dx.doi.org/10.1007/bf00737601.

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42

Khutoryanskii, F. M., O. V. Alekseev, Yu V. Danchenko, and D. N. Levchenko. "Reduction of coke ash content by better desalting of crude oil." Chemistry and Technology of Fuels and Oils 24, no. 10 (1988): 417–20. http://dx.doi.org/10.1007/bf00727680.

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43

Wang, Chang’an, Qinqin Feng, Qiang Lv, et al. "Numerical Investigation on Co-firing Characteristics of Semi-Coke and Lean Coal in a 600 MW Supercritical Wall-Fired Boiler." Applied Sciences 9, no. 5 (2019): 889. http://dx.doi.org/10.3390/app9050889.

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Semi-coke is one of the principal by-products of coal pyrolysis and gasification, which features the disadvantages of ignition difficulty, low burnout rate, and high nitrogen oxides (NOx) emission during combustion process. Co-firing semi-coke with coal is a potential approach to achieve clean and efficient utilization of such low-volatile fuel. In this paper, the co-firing performance of semi-coke and lean coal in a 600 MW supercritical wall-fired boiler was numerically investigated which has been seldom done previously. The influences of semi-coke blending ratio, injection position of semi-c

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44

Furimsky, E., and A. Palmer. "Catalytic effect of lignite ash on steam gasification of oil sand coke." Applied Catalysis 23, no. 2 (1986): 355–65. http://dx.doi.org/10.1016/s0166-9834(00)81304-4.

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45

Khairil, K., Daisuke Kamihashira, and Ichiro Naruse. "Interaction between molten coal ash and coke in raceway of blast furnace." Proceedings of the Combustion Institute 29, no. 1 (2002): 805–10. http://dx.doi.org/10.1016/s1540-7489(02)80103-1.

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46

Berkutov, N. A., D. A. Koshkarov, and Yu V. Stepanov. "Influence of the batch’s ash content on coke quality (CRI and CSR)." Coke and Chemistry 56, no. 6 (2013): 201–3. http://dx.doi.org/10.3103/s1068364x13060021.

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47

Niewiadomski, Marcin, Jan Hupka, Romuald Bokotko, and Jan D. Miller. "Recovery of coke fines from fly ash by air sparged hydrocyclone flotation." Fuel 78, no. 2 (1999): 161–68. http://dx.doi.org/10.1016/s0016-2361(98)00145-8.

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48

González, A., N. Moreno, and R. Navia. "CO 2 carbonation under aqueous conditions using petroleum coke combustion fly ash." Chemosphere 117 (December 2014): 139–43. http://dx.doi.org/10.1016/j.chemosphere.2014.06.034.

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49

KUO, Y. "Metal behavior during vitrification of incinerator ash in a coke bed furnace." Journal of Hazardous Materials 109, no. 1-3 (2004): 79–84. http://dx.doi.org/10.1016/j.jhazmat.2004.02.053.

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50

Kondrasheva, N., V. Rudko, M. Nazarenko, and R. Gabdulkhakov. "Influence of parameters of delayed asphalt coking process on yield and quality of liquid and solid-phase products." Journal of Mining Institute 241 (February 25, 2020): 97. http://dx.doi.org/10.31897/pmi.2020.1.97.

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Paper studies the effect of excess pressure during delayed coking of asphalt, obtained by propane deasphaltization of tar, on yield and physical and chemical properties of hydrocarbon fuels' components and solid-phase product – petroleum coke. Asphalt was coked at a temperature of 500 °C and excess pressure of 0.15-0.35 MPa in a laboratory unit for delayed coking of periodic action. Physical and chemical properties of raw materials and components of light (gasoline), medium (light gasoil), and heavy (heavy gasoil) distillates obtained during experimental study were determined: density, viscosi

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