Effective kinetic inhibitors for natural gas hydrates

被引：384

作者：

Lederhos, JP ^{[1
]}

Long, JP ^{[1
]}

Sum, A ^{[1
]}

Christiansen, RL ^{[1
]}

Sloan, ED ^{[1
]}

机构：

[1] COLORADO SCH MINES,CTR HYDRATE RES,GOLDEN,CO 80401

来源：

CHEMICAL ENGINEERING SCIENCE | 1996年 / 51卷 / 08期

关键词：

D O I：

10.1016/0009-2509(95)00370-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Kinetic inhibition is a new means of preventing flow channel blockage by natural gas hydrates. In kinetic inhibition the system is allowed to exist within the hydrate thermodynamic stability zone, so that small crystals are stabilized without agglomerating to larger hydrate masses which plug pipelines. A hydrate formation mechanism is reviewed to suggest the new inhibition method. Macroscopic experiments on two apparatuses are presented for the best kinetic inhibitors among approximately 1500 chemicals. Pressure, concentration, and salinity limitations were measured for the three best kinetic inhibitors: poly(N-vinylcaprolactam) (PVCAP), N-vinylpyrrolidone/N-vinylcaprolactam/N, N-dimethylaminoethyl-methacrylate (VC-713), and N-vinylpyrrolidone-co-N-vinylcaprolactam (VP/VC). Field tests have verified the laboratory research.

引用

页码：1221 / 1229

页数：9

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