不同水热解条件下煤结构变化的实验研究  

Experiment Studies on Changes of Coal Structure During Hydrothermal Treatment

作　　者：王志远[1] 宋凯[1] 张建胜[2] 

机构地区：[1]太原理工大学电气与动力工程学院,太原030024 [2]清华大学热科学与动力工程教育部重点实验室,北京100084

出　　处：《煤炭技术》2015年第3期287-290,共4页Coal Technology

基　　金：国家高技术研究发展计划(863计划)(2013AA051202)

摘　　要：利用高压反应釜,在不同温度、气氛和停留时间条件下,对白音华褐煤进行水热处理,对于处理后的煤进行元素分析,并研究改性后煤中含氧官能团含量的变化规律。水热处理后的煤样碳含量增高,氧含量降低,O/C比降低,煤化程度增高;煤表面含氧官能团的含量随水热处理温度的升高而减少,随煤化程度的增高而减少。High-pressure reactor was used to treat the lignite at different temperature, atmosphere and residence time conditions. After that an elemental analysis was done with the lignite and the oxygen functional groups in lignite were studied. The experiments showed that the oxygen content was lower while the carbon content was higher after the hydrothermal treatment. The O/C ratio decreased meant that the coal rank increased. The surface oxygen functional groups were reduced with the increase of the coal rank.

关 键 词：低阶煤 水热处理 含氧官能团 

分 类 号：TQ530.2[化学工程—煤化学工程]