期刊
FLUID PHASE EQUILIBRIA
卷 362, 期 -, 页码 252-257出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fluid.2013.10.019
关键词
Separation; Hydrate; Hydrogen; Methane; Water in oil emulsion
资金
- National 973 Project of China [2012CB215005]
- National Natural Science Foundation of China [20925623, 21006126, 21276272, U1162205]
- Beijing Nova Program [2010B069]
- Program for New Century Excellent Talents from Ministry of Education [NCET-12-0968]
In this work, hydrogen was separated from CH4/H-2 gas mixtures via forming hydrate in water in oil emulsion. Aqueous phase is the aqueous solution of 3.0 wt% Span 20. Oil phase is the mixture of diesel and cyclopentane (CP) with a CP concentration of 50 volt Span 20 was used to disperse water or hydrate in diesel to form emulsion or hydrate slurry. CP was used to moderate the hydrate formation condition. Two H-2/CH4 feed gas mixtures, containing 68.0 mol% and 84.7 mol% of hydrogen respectively, were prepared. A series of experiments were performed with respect to two feed gas mixtures to investigate the influences of temperature, pressure, and water cut upon the separation efficiency. Our experimental results show that suitable low temperature (274.15 K or so), high pressure (5-6 MPa), and water cut around 20 vol% are favorable for H-2 separation. The highest separation factor of H-2/CH4 reaches 49. After a two-stage separation at 274.15 K, the concentration of H-2 in gas phase could be increased from 68 mol% to more than 92 mol% and nearly 90% of H-2 can be recovered in gas phase. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据