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Zeolite minilith : a unique structured catalyst for the methanol to gasoline process
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Omojola, Toyin, Cherkasov, Nikolay, Rebrov, Evgeny V., Lukyanov, Dmitry B. and Perera, Semali P. (2018) Zeolite minilith : a unique structured catalyst for the methanol to gasoline process. Chemical Engineering and Processing - Process Intensification, 131 . pp. 137-143. doi:10.1016/j.cep.2018.07.016 ISSN 0255-2701.
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WRAP-Zeolite-minilith-unique-structured-catalyst-methanol-Cherkasov-2018.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (1336Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.cep.2018.07.016
Abstract
Structured microchannel H-ZSM-5 catalysts containing up to 80 wt% zeolite (balance bentonite) were fabricated by unit operations of paste preparation, extrusion, drying and firing. The structured catalysts, called miniliths due to their micrometre-range dimensions, were composed of parallel cylindrical channels with a wall thickness of 200–300 μm, density of 2.1 channels/mm2 and a channel diameter of 300 μm. These miniliths were characterised by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, N2 physisorption and thermogravimetric analysis. For the first time, these miniliths were tested for the conversion of methanol to gasoline at 370 °C, 3 bar and a weight hourly space velocity (WHSV) of up to 1170 h−1. A gasoline product yield of 53% was obtained at a methanol conversion of 74% over the ZSM-5 miniliths. The pressure drop at the same conversion over a packed-bed reactor of equal ZSM-5 content was 2 orders of magnitude higher than that of the minilith. Reducing the amount of ZSM-5 catalyst in the packed bed, to obtain similar inlet pressure as the ZSM-5 minilith gave the same product yield at a much higher conversion (81%) demonstrating the potential of these structured microchannel reactors.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TP Chemical technology | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Methanol, Gasoline, Petroleum | ||||||||
Journal or Publication Title: | Chemical Engineering and Processing - Process Intensification | ||||||||
Publisher: | Elsevier | ||||||||
ISSN: | 0255-2701 | ||||||||
Official Date: | September 2018 | ||||||||
Dates: |
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Volume: | 131 | ||||||||
Page Range: | pp. 137-143 | ||||||||
DOI: | 10.1016/j.cep.2018.07.016 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 7 August 2018 | ||||||||
Date of first compliant Open Access: | 26 July 2019 | ||||||||
RIOXX Funder/Project Grant: |
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