超临界流体技术在煤焦油加工中的应用研究进展

Application of supercritical fluid technology in coal tar processing

介绍了超临界流体性质及超临界流体技术的应用,分析了目前国内的煤焦油加工现状,讨论了超临界流体技术在煤焦油加工中的萃取分离和煤焦油改质的应用,认为超临界水和超临界二氧化碳萃取技术具有分离产品质量高、环境污染低、生产成本小等特点,是最具发展前景的绿色化工技术。

In this paper,the properties of supercritical fluid and the application of supercritical fluid technology were introduced,the present situation of coal tar processing was analyzed in China,and the application of supercritical fluid technology in coal tar processing and in coal tar reform were discussed.It was considered that supercritical water and supercritical carbon dioxide extraction technology have high product quality,low environmental pollution,and low production costs.It is the most promising green chemical technology.