CO2 enclathration in the presence of water-soluble hydrate promoters: Hydrate phase equilibria and kinetic studies in quiescent conditions

被引：107

作者：

Torre, Jean-Philippe ^{[1
]}

Ricaurte, Marvin ^{[1
]}

Dicharry, Christophe ^{[1
]}

Broseta, Daniel ^{[1
]}

机构：

[1] Univ Pau & Pays Adour, CNRS, TOTAL UMR 5150 LFC R, Lab Fluides Complexes & Leurs Reservoirs, F-64013 Pau, France

来源：

CHEMICAL ENGINEERING SCIENCE | 2012年 / 82卷

关键词：

Gas Hydrates; Carbon dioxide; Phase equilibria; Kinetics; Separations; Additives; SODIUM DODECYL-SULFATE; UNSTIRRED GAS/LIQUID SYSTEM; MIXED CARBON-DIOXIDE; SURFACTANT; METHANE; CAPTURE; DISSOCIATION; PROPANE; THF; STABILITY;

D O I：

10.1016/j.ces.2012.07.025

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Clathrate hydrates have potential applications in various domains and particularly for CO2 capture where the search for additives able to speed up hydrate formation is of scientific, technological and economical interest. This study investigates the potentialities of two additives used in combination for enhancing CO2 enclathration rates: a surfactant (sodium dodecyl sulphate; SDS) and an organic compound (tetrahydrofuran; THF). Experiments performed in batch and in semi-continuous reactor configuration, reveal that this combination of additives efficiently promotes hydrate formation, allowing a full water-to-hydrate conversion despite the quiescent-forming conditions used. The possible action mechanisms of this combination of additives are analyzed and discussed on the basis of experimental data of hydrate phase equilibria (with and without additives), visual observations, and kinetics experiments. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1 / 13

页数：13

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[1] MICELLE FORMATION BY ANIONIC AND CATIONIC SURFACTANTS IN BINARY AQUEOUS SOLVENTS [J].