화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO)
권호 14권 2호, p.2814
발표분야 에너지
제목 Novel Thermal Swing Sorption Enhanced Reaction Process for Simultaneous Production of H2 and CO2 from Synthesis Gas Produced by Coal Gasification
초록 The goal of this study is to test the feasibility of a novel concept called thermal swing sorption enhanced reaction (TSSER) process to carry out simultaneously the water gas shift (WGS) reaction for the production of a pure stream of H2 (dry basis) and the separation of CO2 as a single unit operation in a sorber-reactor. The sorption enhanced reaction (SER) can circumvent the thermodynamic limitation of the WGS reaction and enhance the rate of the forward reaction. New equilibrium and column dynamic data for chemisorption of CO2 from inert N2 on K2CO3 promoted hydrotalcite and Na2O promoted alumina were measured. The SER concept was successfully tested using a commercial WGS catalyst and the chemisorbents by both experiments and numerical simulations. The proposed TSSER process was numerically simulated and the results show that the TSSER process is capable of directly producing a fuel-cell grade H2 product (~10 ppm CO) at feed gas pressure using synthesis gas as the reactor feed. The TSSER process also produces a pure and compressed CO2 by-product.
저자 이기봉1, Michael G. Beaver2, Hugo S. Caram2, Shivaji Sircar2
소속 1한국에너지기술(연), 2Lehigh Univ.
키워드 Thermal swing process; Sorption enhanced reaction; Chemisorption; Hydrogen; Carbon dioxide
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