低阶煤热解与兰炭生产工艺研究进展

doi:10.13228/j.boyuan.issn0449-749x.20200298

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Abstract Nowadays, fossil energy is increasingly depleted, so it is necessary to make full use of existing resources and develop new renewable resources. The low-rank coal has high volatilization, good combustion and reactivity, and direct combustion cannot fully explore its potential value. Pyrolysis technology, as a kind of technology that can utilize coal resources efficiently, has attracted more attention from many scholars. According to the characteristics of low-rank coal reactivity in different conversion stages, blue carbon can be prepared by controlling coal pyrolysis. The gasification activity of blue carbon powder is better than that of coke powder and anthracite powder, when used in blast furnace injection, the mixed injection of blue carbon and anthracite can also improve the injection performance of mixed coal and promote the steady production of the blast furnace. Blue carbon has become a new type of carbon material with high fixed carbon, high chemical activity, low ash content, low phosphorus, and low sulfur, the production and preparation technology of blue carbon has also become a hot topic for many scholars. The global energy consumption and the energy structure of our country in recent years, introduces some low-order coal pyrolysis processes, the application of blue carbon in blast furnace injection and sintering, and the production process of blue carbon was analyzed briefly. The properties of blue carbon and common fuel in the blast furnace are compared. The prospect of low-order coal pyrolysis process and blue carbon production process is prospected. It is suggested that the development of the large scale, automatic, and environment-friendly plant is the development trend of the pyrolysis process in the future.

Key words： energy pyrolysis low-order coal semi-coke process

Received: 05 June 2020

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	Articles by authors
	NING Xiao-jun
	DANG Han
	ZHANG Jian-liang
	WANG Guang-wei
	ZHANG Nan
	YUE Huai-zhong

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NING Xiao-jun,DANG Han,ZHANG Jian-liang等. Research progress of low-order coal pyrolysis process and semi-coke production process[J]. Iron and Steel, 2021, 56(1): 1-11.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20200298 OR http://www.chinamet.cn/Jweb_gt/EN/Y2021/V56/I1/1

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