制冷学报2011，Vol.32Issue(4)：1-8,8.DOI:10.3969/j.issn.0253-4339.2011.04.001
煤层气液化技术研究进展
Research Progress of CBM Liquefaction Technologies
摘要
Abstract
Liquefaction provides an efficient approach for better recovery and utilization of CBM (coal bed methane). For CBM with low methane content, methane enrichment has to be considered along with liquefaction, so the liquefaction technology is different from that for the ordinary natural gas. There are mainly two solutions for the liquefaction of CBM with low methane content: one is liquefaction at first and then concentrate methane via a distillation process; the other one is adopting an adsorption process firstly to concentrate methane and then liquefaction. For the former solution, researches for liquefaction processes suitable for small-scale CBM liquefaction plants, methane concentrate technologies by distillation, and integrated processes of liquefaction and distillation were introduced. For the latter one, researches for methane/nitrogen separation technologies by adsorption and integrated processes of adsorption and liquefaction were introduced. Furthermore, the heat transfer characteristics for CBM liquefaction processes as well as the cooling heat transfer characteristics for supercritical methane/nitrogen were also introduced.关键词
热工学/煤层气/液化/流程/吸附/精馏/传热Key words
Pyrology/ Coal bed methane (CBM)/ Liquefaction/ Process/ Adsorption/ Distillation/ Heat transfer分类
化学化工引用本文复制引用
林文胜,高婷,席芳,杜忠选,顾安忠..煤层气液化技术研究进展[J].制冷学报,2011,32(4):1-8,8.基金项目
国家高技术研究发展计划(863计划,2006AA06Z234)资助项目. （863计划,2006AA06Z234）
