Methane hydrates formation and dissociation in nano silica suspension

被引:92
|
作者
Chari, Vangala Dhanunjana [1 ,2 ]
Sharma, Deepala V. S. G. K. [1 ]
Prasad, Pinnelli S. R. [1 ]
Murthy, Sarabu Ramana [2 ]
机构
[1] CSIR, Natl Geophys Res Inst, Gas Hydrate Div, Hyderabad 500007, Andhra Pradesh, India
[2] Osmania Univ, Dept Phys, Hyderabad 500007, Andhra Pradesh, India
关键词
Methane hydrates; Methane storage; Dry water; Nano suspensions; Formation kinetics; Self-preservation; GAS-HYDRATE; POROUS-MEDIA; DRY WATER; STABILITY; STORAGE; PRESERVATION; KINETICS; ETHANE;
D O I
10.1016/j.jngse.2012.11.004
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Methane gas hydrate (MH) formation/dissociation were investigated in nano silica and water system in a non-stirred reactor. The MH yield was significantly improved in the presence of nano silica. The overall methane hydrate conversion (>= 80%) was achieved by optimizing the nano silica to water ratio. Two-stage dissociation was observed after a rapid de-pressurization. Methane gas intake of this system was steady for multiple freezing-thawing cycles signifying improved stability for methane gas storage. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:7 / 11
页数:5
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