超临界水褐煤气化液体产物分析  

Liquid Product Analysis of Supercritical Water Gasification of Lignite

作　　者：夏凤高 Xia Fenggao(Ecology and Environment Monitoring Station of Yunnan Provincial Department of Ecologyand Environment in Zhaotong City,Zhaotong,Yunnan 657000,China)

机构地区：[1]云南省生态环境厅驻昭通市生态环境监测站,云南昭通657000

出　　处：《绿色科技》2022年第4期54-56,共3页Journal of Green Science and Technology

摘　　要：以昭通褐为原料,采用高压反应釜进行超临界水气化。利用气质联用仪对褐煤超临界水气化产生的液相产物进行了监测分析,确定了其中所含有机物质。同时概括了液相反应的路径:褐煤先分解为葡萄糖和果糖,然后通过羟醛缩合、羟醛逆缩合、脱水、异构等反应,生成以酚类和酮类居多的液相产物,这为防治液相产物对水体、大气、土壤造成污染和对其分类回收提供了依据。In this paper,Zhaotong lignite was used as raw material for supercritical water gasification by high pressure reactor.The liquid products produced by supercritical water gasification of lignite were monitored and analyzed by GC-MS,and the organic substances contained in them were determined.At the same time,the path of liquid phase reaction is summarized.Lignite is decomposed into glucose and fructose.Then,through the reaction of aldehyde condensation,aldehyde reverse condensation,dehydration,isomerism,etc.,the liquid products are mainly phenols and ketones,which provides the basis for the prevention and treatment of the pollution caused by liquid products to water body,air and soil,and the classification and recovery of liquid products.

关 键 词：超临界水 褐煤气化 液体产物 分析 

分 类 号：X757[环境科学与工程—环境工程]