Hydrogen production from a DME reforming-membrane reactor using stainless steel-supported Knudsen membranes with high permeability

Sang Jun Park, Dong Wook Lee, Chang Yeol Yu, Kwan Young Lee, Kew Ho Lee

Research output: Contribution to journalArticle

18 Citations (Scopus)

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 °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 °C.

Original languageEnglish
Pages (from-to)123-128
Number of pages6
JournalJournal of Membrane Science
Volume318
Issue number1-2
DOIs
Publication statusPublished - 2008 Jun 20

Fingerprint

Stainless Steel
hydrogen production
Reforming reactions
Hydrogen production
stainless steels
Hydrogen
Ethers
Permeability
ethers
permeability
Stainless steel
reactors
membranes
Membranes
Water gas shift
Steam reforming
Carbon Monoxide
Freezing
Steam
Drying

Keywords

  • DME steam reforming
  • Knudsen membranes
  • Water-gas shift reaction

ASJC Scopus subject areas

  • Filtration and Separation
  • Polymers and Plastics

Cite this

Hydrogen production from a DME reforming-membrane reactor using stainless steel-supported Knudsen membranes with high permeability. / Park, Sang Jun; Lee, Dong Wook; Yu, Chang Yeol; Lee, Kwan Young; Lee, Kew Ho.

In: Journal of Membrane Science, Vol. 318, No. 1-2, 20.06.2008, p. 123-128.

Research output: Contribution to journalArticle

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AU - Lee, Kew Ho

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AB - 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 °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 °C.

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