Hydrogen production from a DME reforming-membrane reactor using stainless steel-supported Knudsen membranes with high permeability
- Authors
- Park, Sang-Jun; Lee, Dong-Wook; Yu, Chang-Yeol; Lee, Kwan-Young; Lee, Kew-Ho
- Issue Date
- 20-6월-2008
- Publisher
- ELSEVIER
- Keywords
- DME steam reforming; water-gas shift reaction; Knudsen membranes
- Citation
- JOURNAL OF MEMBRANE SCIENCE, v.318, no.1-2, pp.123 - 128
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MEMBRANE SCIENCE
- Volume
- 318
- Number
- 1-2
- Start Page
- 123
- End Page
- 128
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/123370
- DOI
- 10.1016/j.memsci.2008.02.036
- ISSN
- 0376-7388
- Abstract
- Stainless steel-supported composite membranes with the Knudsen-dominated permeation behavior were synthesized via the dipping-rolling-freezing-fast drying (DRFF) and soaking-rolling-freezing-fast drying (SRFF) method. A dimethyl ether (DME) steam reforming was performed in a membrane reactor using the stainless steel-supported Knudsen membrane (SKM) with remarkably high permeability. The Knudsen membrane with high permeability was used to improve DME conversion and hydrogen recovery. Compared to a conventional reactor, the DME conversion was improved up to 48% and the hydrogen recovery was 37-38% in the temperature range of 250-450 degrees C. Moreover, the DME steam reforming-membrane reactor was combined with water-gas shift (WGS) reaction in the permeate side of the membrane reactor to obtain high CO removal efficiency. As a result, the CO concentrations was significantly reduced to below 20 ppm in the permeate side of the membrane reactor via the WGS reaction in the temperature range of 300-450 degrees C. (C) 2008 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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