煤热解脱硫技术研究进展

Research Advance in Desulfurization by Pyrolysis

从认识煤中硫的赋存形式及热解迁移转化规律出发,分析变质程度与煤岩组分对硫赋存和脱除率影响,掌握不同温度下不同形态硫变迁机制,重点介绍惰性、氧化、氢气气氛条件下热解脱硫机理,阐释惰性、氧化、氢气及其他气氛条件对热解脱硫率的影响,提出深入研究热解过程中硫与其他元素迁移交互作用,多段多气氛热解脱硫技术及多种取代氢气的热解脱硫气氛建议,以期通过热解气氛调控,实现热解脱硫技术成本最低化和效率最大化。

Analyzes desulfurization technology and the mechanism of desulfurization under by pyrolysis, summarize the inert atmosphere, oxidizing distribution, atmosphere transformation and hydrogen atmosphere. It shows that the coal rank and maceral have influence on the occurrence regularity of the sulfur, and that the temperature of pyrolysis and the occurrence modes of sulfur affect the desulfurization rate. Based on this, put forward the following views, the interaction of sulfur and other element of coal, multi-stage multi-atmosphere pyrolysis and hydrogen rich gas should be investigated in pyrolysis, the atmosphere adjustment in pyrolysis can reduce coast and improve effieieny.