CO2-selective membranes for hydrogen production and CO2 capture - Part I: Membrane development
CO2-selective membranes for hydrogen production and CO2 capture - Part I: Membrane development
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DOI：
10.1016/j.memsci.2014.01.020
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发表时间：
2014-05-01
影响因子：
9.5
通讯作者：
Lambrecht, Robert C.
中科院分区：
文献类型：
--
作者：
Lin, Haiqing;He, Zhenjie;Lambrecht, Robert C.
合成气操作需要分离CO2和氢气，用于炼油厂和石化厂的氢气生产，并可能用于整体气化联合循环（IGCC）发电厂的联合氢气生产和CO2捕获。选择性渗透CO2的膜已经引起了极大的兴趣，因为纯化的氢气保持在高压下，从而避免了昂贵的下游再压缩。在这项工作中，北极星（TM）薄膜复合膜进行了评估，从合成气中去除二氧化碳：这些膜是高度渗透的二氧化碳和拒绝合成气的其他主要成分，包括氢气，一氧化碳和甲烷。本研究的第一部分介绍了三个阶段的发展北极星膜CO2/H-2分离，包括：实验室参数测试的膜邮票使用纯和混合气体流，中试规模的测试膜组件使用真实的合成气在燃煤气化厂，和现场演示的膜系统生产液体CO2。进行现场试验的气化装置位于位于AL的威尔森维尔的国家碳捕获中心（NCCC）。膜示范系统处理227 kg/h的含有类似于9%CO2的合成气（相当于0.15 MWe IGCC发电装置），并产生含有95+%CO2的液体CO2流。本研究的第二部分将探讨在商业氢气纯化和CO2捕获中使用CO2选择性膜的潜在机会，包括各种工艺设计的技术经济分析结果。(C)2014爱思唯尔有限公司版权所有。
Syngas operations require separation of CO2 and hydrogen for hydrogen production at refineries and petrochemical plants, and potentially for combined hydrogen production and CO2 capture at integrated gasification combined cycle (IGCC) power plants. Membranes that selectively permeate CO2 have attracted significant interest, because the purified hydrogen is retained at high pressure, thus avoiding costly downstream recompression. In this work, Polaris (TM) thin film composite membranes were evaluated for CO2 removal from syngas: these membranes are highly permeable to CO2 and reject the other major components of syngas, including hydrogen, carbon monoxide and methane. Part I of this study describes the three-stage development of Polaris membranes for CO2/H-2 separation, including: laboratory parametric tests of membrane stamps using pure- and mixed-gas streams, pilot-scale tests of membrane modules using real syngas at a coal-fired gasification plant, and field demonstration of a membrane system producing liquid CO2. The gasification plant where the field tests were conducted is at the National Carbon Capture Center (NCCC) in Wilsonville, AL The membrane demonstration system processed 227 kg/h of syngas (equivalent to a 0.15 MWe IGCC power plant) containing similar to 9% CO2, and produced a liquid CO2 stream containing 95+% CO2. Part II of this study will explore the potential opportunities for the use of CO2-selective membranes in commercial hydrogen purification and CO2 capture, including the results of techno-economic analyses for various process designs. (C) 2014 Elsevier B.V. All rights reserved.