H型水合物生成过程的实验研究  

The Experimental Research for Structure H Hydrate Formation

作　　者：武文志[1,2,3,4,5] 关进安 梁德青[1,2,3,4] 

机构地区：[1]中国科学院广州能源研究所,广州510640 [2]中国科学院天然气水合物重点实验室,广州510640 [3]广东省新能源和可再生能源研究开发与应用重点实验室,广州510640 [4]中国科学院广州天然气水合物中心,广州510640 [5]中国科学院大学,北京100049

出　　处：《工程热物理学报》2018年第1期44-48,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51376182;No.41374149)

摘　　要：在恒容条件下,根据水合物的相平衡条件设置4、6、8 K三个不同的过冷度,分析了不同的过冷度对含大客体分子和甲烷体系的H型水合物生成过程的影响,并与纯甲烷水合物的生成过程进行比较,包括诱导时间、生成速率、气体消耗量。本实验所采用的四种大客体分子分别是:环庚烷、环庚酮、环辛烷、甲基环己烷。实验结果表明,过冷度越大,水合物生成的诱导时间越短;环庚酮H型水合物的反应速率最快,且储气效果最佳。This work studied the influence on structure H hydrate for large-molecule guest substances and methane under different sub-cooling by isochoric methods, including induction time, hydrate formation rate, mole of gas consumed. And the experimental results were compared with pure methane hydrate. The sub-cooling was 4, 6, 8 K and calculated according to the hydrate phase equilibrium data. These four large-molecule guest substances were cycloheptane, cycloheptanone, cyclooctane, methylcyelohe^ane respectively. The results indicated that the induction time become shorter with the higher sub-cooling. And structure H hydrate with cycloheptanone showed the fastest formation rate and the best gas storage effect.

关 键 词：大客体分子 H型水合物 生成速率 诱导时间 气体消耗量 

分 类 号：TK121[动力工程及工程热物理—工程热物理]