化工进展Issue(6)：1230-1235,6.DOI:10.3969/j.issn.1000-6613.2013.06.005
多孔介质中甲烷水合物不同分解方法实验研究
Experimental investigation on different methods of dissociation of methane hydrate in porous sediment
摘要
Abstract
The gas hydrate in permafrost regions could be an important energy source for future. In this paper,we studied methane hydrate dissociation in a one-dimensional experiment apparatus by depressurization and hot water injection in porous sediments under simulated conditions of 1.24 ℃ to 1.35 ℃ and 2.83 MPa to 2.89 MPa for permafrost regions. The changes of pressure,temperature,gas production,water production and energy efficiency with time were investigated. The results revealed three stages in the gas production process:free gas release,hydrate dissociation and production of remaining gas. In the first stage,there was no water presented in the depressurization or hot water injection process. In the process of the hot water injection,water production rate was equal to water injection rate. The energy efficiency in the hot water injection process increased before it came to a decrease. Lower energy efficiencies associated with higher rates of the water injection.关键词
甲烷水合物/多孔介质/降压分解/注热分解/能量效率Key words
methane hydrate/porous sediment/depressurization/thermal stimulation/energy efficiency分类
能源科技引用本文复制引用
李桂琴,李刚,陈朝阳,李小森,王屹..多孔介质中甲烷水合物不同分解方法实验研究[J].化工进展,2013,(6):1230-1235,6.基金项目
国家自然科学基金（51225603，50874098）、国家973计划（2009CB219507）、广州市科技计划（2012J5100012）、中科院重点部署项目（KGZD-EW-301-2）、广东省重大科技专项（2011A 080403021）、国家海洋地质专项（ GHZ2012006003）及广东省自然科学基金（S2011010004350）项目。 （）
