Synergistic kinetic inhibition of natural gas hydrate formation

被引：106
作者：
Daraboina, Nagu [1 ]
Malmos, Christine [1 ]
von Solms, Nicolas [1 ]
机构：
[1] Tech Univ Denmark, Dept Chem & Biochem Engn, Ctr Energy Resources Engn, DK-2800 Lyngby, Denmark
来源：
FUEL | 2013年 / 108卷
关键词：
Gas hydrate; Kinetic inhibition; Synergist; Salts; Rocking cell; POLYETHYLENE OXIDE; METHANE; DECOMPOSITION; GROWTH; NUCLEATION; ENHANCEMENT; PERFORMANCE; MORPHOLOGY; MIXTURES; STORAGE;
D O I：
10.1016/j.fuel.2013.02.018
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：
Rocking cells were used to investigate the natural gas hydrate formation and decomposition in the presence of kinetic inhibitor, Luvicap. In addition, the influence of poly ethylene oxide (PEO) and NaCl on the performance of Luvicap was investigated using temperature ramping and isothermal experiments. Luvicap decreased the hydrate nucleation temperature in ramping and increased the hydrate nucleation time at fixed temperatures. The presence of PEO and NaCl enhanced the nucleation inhibition strength of Luvicap. However the addition of Luvicap promoted the hydrate growth after nucleation. PEO does not affect hydrate growth whereas NaCl reduced the hydrate growth both in the presence and absence of Luvicap. In addition complex two-stage hydrate growth was observed in the presence of Luvicap. Moreover, the hydrate formed in the presence of inhibitor took longer time/higher temperature to decompose completely. One should consider this complex inhibitor-mediated hydrate formation and decomposition kinetics when screening and designing kinetic inhibitors for field applications. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：749 / 757
页数：9
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