Gasification reactivity and kinetic parameters of coal chars for non-isothermal steam gasification

• 作者: Guang-wei Wang Hai-bin Zuo Jun Zhao Ya-jie Wang
• 来源期刊: 钢铁研究学报（英文版）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: ORIGINAL PAPERS
• 页码范围: 1-9
• 页数: 9页
• 语种: 英文

摘要

The gasification reactivity and kinetic parameters of coal chars for non-isothermal steam gasification were investigated. One kind of lignite and three kinds of bituminous coals were used as the samples, and their coal ranks follow the ascending order:XB<KL<ZJ<GD. As characterized by the comprehensive gasification index, the gasification reactivity of coal chars follows the descending order:XB>KL>ZJ>GD. Through systematically analyzing factors affecting gasification reactivity, it was ascertained that the gasification reactivity is mostly determined by the carbonaceous structure. The gasification reactivity is inversely proportional to the coal rank, and the higher the coal rank, the lower the gasification reactivity. A new kinetic model was proposed to calculate the kinetic parameters, in which the reaction order was considered as an unknown kinetic parameter. The reaction order n follows the ascending order: XB<KL<ZJ<GD, which are n=1.00, n=1.34, n=1.83, and n=2.63, respectively. It is proved that the reaction order is proportional to the coal rank, and the higher the coal rank, the higher the reaction order.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Ya-jie Wang		1	0	0.0	0.0
2	Hai-bin Zuo		1	0	0.0	0.0
3	Jun Zhao		1	0	0.0	0.0
4	Guang-wei Wang		1	0	0.0	0.0