CROSS-LINKING REACTIONS OF OXYGEN GROUPS DURING LIQUEFACTION OF LIGNITE BY A NEW MODEL SYSTEM
IntroductionChina has abundant coal resources, but low-to-medium rank coals account for 55% of the total retained reserves. These low-to-medium rank coals have high moisture and oxygen content, a low energy density, be prone to weather and spontaneous combustion, and are also expensive in transportation. All these characteristics limit its high efficient utilization, but low rank coals usually have a relative larger porosity and high reactivity, so liquefaction can be realized under mild condition and the whole running cost can be reduced when these coals are used. Simultaneously, the domestic petroleum supply/demand gap and requirements for keeping the safety and stability of energy supply promote the development of coal liquefaction. So liquefaction is a very important low-to-medium rank coals utilization technology in China. But retrogressive reactions usually occur during liquefaction of these coals and many researches have shown that oxygen functional groups in the low-to-medium rank coals are major reactants in these retrogressive reactions.
Zhiqing Wang Zongqing Bai Wen Li Haokan Chen Baoqing Li
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, T State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, T
国际会议
The 7th China-Korea Workshop on Clean Energy Technology(第七届中韩清洁能源技术研讨会)
太原
英文
121-122
2008-06-25（万方平台首次上网日期，不代表论文的发表时间）