The investigation of the effect of coking time and temperature on metallurgical coke production by using a mixture of coking and non-coking coal

Author(s):  
Ü. Özden
2021 ◽  
Vol 221 ◽  
pp. 106942
Author(s):  
Linyang Zhang ◽  
Guang Wang ◽  
Qingguo Xue ◽  
Haibin Zuo ◽  
Xuefeng She ◽  
...  

Subject Market beset by multiple headwinds. Significance Premium hard-coking coal -- used in the production of blast-furnace coke for steel mills -- is trading at around 92 dollars a tonne, up from a February low below 80 dollars a tonne but still a long way down from the more-than-300 dollars a tonne it commanded in 2011. China's steelmakers are making less steel and using more domestic coke to do so; China's hard-coking coal imports fell by 23% in 2015. Although imports rebounded in the first quarter of 2016, China has said it will shutter up to 150 million tonnes (mt) of steel production, 70 mt of coke production and much of its coal production. Impacts Domestic oversupply in China will drive imports down, with the gradual decoupling of seaborne and Chinese metallurgical coal prices. Many mine closures are reversible; should market conditions improve, up to 70 mt of idled capacity could resume production. Any major weather event could strain the supply chain, triggering a shortage.


2018 ◽  
Vol 115 (2) ◽  
pp. 209
Author(s):  
Debjani Nag ◽  
P. Kopparthi ◽  
P.S. Dash ◽  
V.K. Saxena ◽  
S. Chandra

Macerals in coal are of different types: reactive and inert. These macerals are differ in their physical and chemical properties. Column flotation method has been used to separate the reactive macerals in a non-coking coal. The enriched coal is then characterized in order to understand the changes in the coking potential by different techniques. It is then used in making of metallurgical coke by proper blending with other coals. Enriched coal enhance the properties of metallurgical coke. This shows a path of utilization of non-coking coal in metallurgical coke making.


Author(s):  
Paulo Dornelas ◽  
Alfredo Carlos Bitarães Quintas ◽  
Victor Eric de Souza Moreira ◽  
Natalia Haneiko ◽  
Mauro Silva ◽  
...  

Author(s):  
Andrii Koveria ◽  
Lina Kieush ◽  
Olena Svietkina ◽  
Yevhen Perkov

Fuel ◽  
2013 ◽  
Vol 114 ◽  
pp. 216-223 ◽  
Author(s):  
M.A. Diez ◽  
R. Alvarez ◽  
J.L.G. Cimadevilla

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