温室效应及气体水合化控制方法

Greenhouse Effect and its Control Method Based on Hydrate Technology

温室气体大量排放引起的全球气候变暖问题日趋严峻,由此导致的温室效应正在严重地威胁着人类赖以生存的环境.运用水合物技术处理CO2和CH4这两种主要的温室气体是国际水合物界广泛关注的焦点.介绍了CO2置换法开采天然气水合物的技术,结合天然气和煤炭工业中CH4的主要排放途径分析了CH4的减排和资源化技术,阐述了天然气水合物的生成、分解工艺及储存的稳定性.利用带有搅拌装置的水合物实验系统研究了不同浓度煤层气的水合化过程,结果表明:在适当条件下不同浓度的煤层气均易形成水合物.通过对实验结果及文献资料的分析表明:运用水合物技术处理温室气体在技术上是可行的.文章最后指出了水合物技术在处理温室气体方面应加强研究的内容.

Global warming caused by massive emission of greenhouse gas has become serious day by day.And now,greenhouse effect seriously threaten human living environment.At present the reducing emission of CO2 and CH4 that are the two major greenhouse gases based on hydrate technology becomes the focus of the hydrate research.The technology on CH4 replacement from hydrate sediment by using CO2 is described.Combined with the main emission channel of natural gas and CH4 in coal industry,the reducing emission technology of CH4 is narrated.Moreover,formation technique and dissociation technique of gas hydrates are expatiated,and the stability of hydrates storage is elaborated.The process of hydrate formation of coalbed methane with different concentration is investigated using self-developed stirred experiment apparatus.The results show that the coalbed methane hydrates are prone to be formed under appropriate conditions.The analysis of the experimental data and results in the former literature indicates that the reducing emission of greenhouse gas such as CO2 and CH4 on hydrate technology is feasible.The research contents of hydrate for disposal greenhouse gas are pointed out at the last part in this work.