Interactions of Coal with Supercritical CO2
IntroductionMore attention has been paid on the greenhouse gas effect of global warming worldwide. CO2 from industry and other human activity is one of major contributors. To prevent CO2 from entering the atmosphere, carbon capture and storage (CCS) is proposed. Injecting carbon dioxide into un-minable coalbed and enhance coalbed methane recovery (CO2-ECBM) is one of the promising technologies for reducing carbon dioxide emission.Coal can be described as a cross-linked macromolecular system with some small molecule compound as mobile phase. It is possible to have interaction with CO2 injected 1. Especially when CO2 is injected at depth below 0.8 km, it becomes a supercritical fluid. Supercritical CO2 (SC-CO2) occupies less space than gas, and have better diffusivity than either gas or ordinary liquid through the coalbed. It can be easilv diffused into the micro-pores of coal 2.
Shijie QU Yong XIAO Jianli YANG Cuoqing CHEN Zenghou LIU Niels van WAGENMGEN Zhenyu LIU
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 Shell International Exploration and Production B.V., Rijswijk-ZH, The Netherlands
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
291-292
2008-06-25（万方平台首次上网日期，不代表论文的发表时间）