Effect of Coal Mineral Type and Size on Coke Strength After Reaction

2019 ◽  
Author(s):  
L. Price ◽  
J. Ryan ◽  
J. Halko ◽  
B. Zhang ◽  
Q. Giroux
Keyword(s):  
Coke Strength ◽  
Coke Strength After Reaction ◽  
Mineral Type

scholarly journals Effect of Lignite Addition on Gasification Properties and Coke Strength after Reaction

2018 ◽  
Vol 58 (7) ◽  
pp. 1218-1223 ◽  
Author(s):  
Tengfei Song ◽  
Jianliang Zhang ◽  
Guangwei Wang ◽  
Haiyang Wang ◽  
Runsheng Xu
Keyword(s):  
Coke Strength ◽  
Coke Strength After Reaction

scholarly journals Variability in Metallurgical Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR): An Experimental Study

ACS Omega ◽  
2022 ◽  
Author(s):  
Deepak Kumar ◽  
Vinod Kumar Saxena ◽  
Hari Prakash Tiwari ◽  
Barun Kumar Nandi ◽  
Abhilash Verma ◽  
...  
Keyword(s):  
Experimental Study ◽  
Reactivity Index ◽  
Metallurgical Coke ◽  
Coke Strength ◽  
Coke Reactivity ◽  
Coke Strength After Reaction

scholarly journals Protective mechanism of unburned pulverized coal to coke in blast furnace

2019 ◽  
Vol 55 (3) ◽  
pp. 371-380
Author(s):  
D.-W. Xiang ◽  
F.-M. Shen ◽  
X. Jiang ◽  
J.-L. Yang ◽  
X.-J. Li ◽  
...  
Keyword(s):  
Pulverized Coal ◽  
Apparent Porosity ◽  
Internal Erosion ◽  
Protective Mechanism ◽  
Coke Strength ◽  
Coke Reactivity ◽  
Internal Morphology ◽  
Coke Strength After Reaction ◽  
Interfacial Chemical Reaction

The edge and internal morphology of coke with different contents of UPC (unburned pulverized coal) after reaction with CO2 were analyzed by SEM. The influence of UPC on CRI (coke reactivity)?CSR (coke strength after reaction) and apparent porosity was also studied. The synthetic weighted mark method was used to analyze the comprehensive effect of UPC content on coke quality. The results show that because of the decrease of the content of intermediates Cf(O) and C(O)Cf(O) the restrictive step between the coke and CO2 is an interfacial chemical reaction, and it accords with the Mckewan equation 1-(1-?)1/3=kt. The UPC has a strong effect on coke when the content of UPC is 10~20%; meanwhile , the CRI and the apparent porosity are significantly decreased by 6.8% and 9.5%, respectively, and the CSR is significantly increased by 3.8%. The UPC can effectively reduce the effect of CO2 on the edge and the internal erosion of coke; the large pores and the pulverization of coke were avoided. The results of the synthetic weighted mark method showed that the comprehensive quality of coke changed greatly when the content of unburned pulverized coal was 11.24~20.87%, which is in agreement with the experimental results.

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