煤炭地下气化在“渭北老矿区”应用的可行性

Feasibility of underground coal gasification applied in Weibei old mining area

通过国内外文献调研和资料分析,总结了煤炭地下气化技术的发展现状和技术原理。简要对"渭北老矿区"煤炭资源量、煤层埋深、煤质特性及煤层顶底板岩性和水文地质条件等方面进行分析,分析了煤炭地下气化技术在"渭北老矿区"去产能后转型发展的必要性和可行性,初步认为"渭北老矿区"具有开展煤炭地下气化的地质条件和资源条件,但煤的粘结性和CO2反应活性成为影响煤炭地下气化效率的主要因素。

Through domestic and foreign literature research and data analysis, the development status and technical principles of underground coal gasification technology were summarized. The coal resources, coal seam depth, coal quality characteris- tics, coal seam roof and floor lithology and hydrogeological conditions in Weibei old mining area were briefly analyzed. And the necessity and feasibility of the transformation and development of underground coal gasification technology after capacity re- duction was analyzed. It is preliminarily assumed that the Weibei old mining area has geological and resource conditions for the development of underground coal gasification. However, cohesiveness of coal and CO2 reflection activity have become major factors affecting coal underground gasification efficiency.