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Membrane processes for effective methanol synthesis in the forest based biorefinery
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
2010 (English)In: Catalysis Today, ISSN 0920-5861, E-ISSN 1873-4308, Vol. 156, no 3-4, p. 87-92Article in journal (Refereed) Published
Abstract [en]

ZSM-5 membranes were prepared and their performance for methanol separations from synthesis gas was evaluated. The experimentally observed permeances at room temperature for the ZSM-5 membranes were 0.3, 1, 12 and 18 × 10-7 mol m-2 s-1 Pa-1 for H2, CO2, CH3OH and H2O, respectively, which resulted in a separation factor α methanol/H2 of about 30. For a stoichiometric feed, the one pass COx -conversion for a traditional methanol process is about 26% per pass, which requires a recirculation loop with the associated disadvantages. By assuming that the same membrane performance could be obtained at industrial conditions, it was shown by mathematical modeling that a ZSM-5 membrane reactor could reach 97% COx -conversion per pass, while a ZSM-5 membrane module process could reach 81% conversion per pass for a stoichiometric feed. As a result of the high conversion per pass for the membrane processes, one pass design with the associated advantages is possible for these processes. A membrane module based system is preferable over a membrane reactor of practical reasons. However, similar performance to the membrane processes can of course be achieved with a one pass process comprised of a series of methanol reactors, reactor effluent heat exchangers, coolers and condensers

Place, publisher, year, edition, pages
2010. Vol. 156, no 3-4, p. 87-92
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
URN: urn:nbn:se:ltu:diva-10671DOI: 10.1016/j.cattod.2010.02.037ISI: 000284665800003Scopus ID: 2-s2.0-77958084938Local ID: 981ff3b0-21f1-11df-be83-000ea68e967bOAI: oai:DiVA.org:ltu-10671DiVA, id: diva2:983617
Note
Validerad; 2010; Bibliografisk uppgift: Catalysis in membrane reactors. Proceedings of the 9th International Conference on Catalysis in Membrane Reactors. Lyon-Villeurbanne, France, 28th June - 2nd July 2009 organized by IRCELYON (UMR 5256 CNRS-UCBL1) at Claude Bernard Lyon 1 University University of LYON; 20100225 (linste)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Sjöberg, ErikSandström, LindaHedlund, Jonas

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