The clathrate hydrate process for post and pre-combustion capture of carbon dioxide
The clathrate hydrate process for post and pre-combustion capture of carbon dioxide
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DOI：
10.1016/j.jhazmat.2007.06.086
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发表时间：
2007-11-19
影响因子：
13.6
通讯作者：
Englezos, Peter
中科院分区：
文献类型：
--
作者：
Linga, Praveen;Kumar, Rajnish;Englezos, Peter
从处理后的烟气中捕获二氧化碳（燃烧后捕获）的新方法之一是基于天然气水合物结晶。分离或捕获CO2的基础是气体水合物晶体中的二氧化碳含量与烟道气中的二氧化碳含量不同。当CO 2 和H-2 的气体混合物形成气体水合物时，CO 2 优先分配在水合物相中。这为从燃气 (CO2/H-2) 混合物中分离 CO2（燃烧前捕获）提供了基础。本研究阐明了这一概念，并为概念工艺设计提供了基本的热力学和动力学数据。此外，还提出了基于水合物形成和膜分离的燃烧前和燃烧后捕获的混合概念过程。 (C) 2007 Elsevier B.V. 保留所有权利。
One of the new approaches for capturing carbon dioxide from treated flue gases (post-combustion capture) is based on gas hydrate crystallization. The basis for the separation or capture of the CO2 is the fact that the carbon dioxide content of gas hydrate crystals is different than that of the flue gas. When a gas mixture Of CO2 and H-2 forms gas hydrates the CO2 prefers to partition in the hydrate phase. This provides the basis for the separation of CO2 (pre-combustion capture) from a fuel gas (CO2/H-2) mixture. The present study illustrates the concept and provides basic thermodynamic and kinetic data for conceptual process design. In addition, hybrid conceptual processes for pre and post-combustion capture based on hydrate formation coupled with membrane separation are presented. (C) 2007 Elsevier B.V. All rights reserved.