化工进展2017，Vol.36Issue(12)：4403-4415,13.DOI:10.16085/j.issn.1000-6613.2017-0098
多孔介质中天然气水合物生成影响因素研究进展
Research progress on influence factors of natural gas hydrate formation in porous media
摘要
Abstract
Nature gas hydrate(NGH)is a kind of non-stoichiometry crystal chemical clathrate,which is formed by natural gas molecules and water molecules under low temperature and high pressure. As a kind of potential energy,it has a wide application prospect in industry. Under natural conditions the hydrate mainly exists in the pore of the permafrost zone and the sea bottom sediments. Simulating the formation of hydrates under natural conditions in experiments is of practical significance for the formation mechanism of hydrate,exploration,exploitation and industrial applications. Thus,many scholars have carried out many experiments on the formation of hydrate in porous media. This paper summarizes the research achievements of predecessors,including the effect of pore size,surface properties and the synergistic reaction of additives(salts and surfactants)on hydrate formation rate and phase equilibrium in the porous environment,and the formative position of gas hydrate under different conditions and several thermodynamic models in porous medium. Finally,it is pointed out that the effects of medium surface characteristics,different types of porous medium and salt mixed system on hydrate formation and the effect of the different reaction conditions on the hydrate formative position should be deeply explored and clarified. In addition,the formation of hydrate at different crack width and wall roughness in the fracture environment is worthy of further study.关键词
天然气水合物/多孔介质/相平衡/表面活性剂/影响因素/模型Key words
nature gas hydrate/porous media/phase equilibrium/surfactants/influence factor/models分类
能源科技引用本文复制引用
潘振,刘志明,刘德俊,商丽艳,李文昭,李萍..多孔介质中天然气水合物生成影响因素研究进展[J].化工进展,2017,36(12):4403-4415,13.基金项目
辽宁省自然科学基金(201602470)及辽宁省高等学校优秀人才支持计划(LJQ2014038)项目. （201602470）
