Study of the Hydrogen Pretreatment of Gallium and Platinum Promoted ZSM-5 for the Ethane Dehydroaromatization Reaction

Caiola, Ashley; Robinson, Brandon; Bai, Xinwei; Shekhawat, Dushyant; Hu, Jianli

doi:10.1021/acs.iecr.1c01555

Title: Study of the Hydrogen Pretreatment of Gallium and Platinum Promoted ZSM-5 for the Ethane Dehydroaromatization Reaction

Journal Article · 25 July 2021 · Industrial and Engineering Chemistry Research

DOI: https://doi.org/10.1021/acs.iecr.1c01555 · OSTI ID:1871317

Caiola, Ashley ^[1]; Robinson, Brandon ^[1]; Bai, Xinwei ^[1]; Shekhawat, Dushyant ^[2];

^[1]

West Virginia Univ., Morgantown, WV (United States)
National Energy Technology Lab. (NETL), Morgantown, WV (United States)

Here, the performances of gallium and platinum promoted ZSM-5 catalysts, fresh and reduced, were studied for the dehydroaromatization of ethane to aromatics. Fresh and reduced 2% Ga/ZSM-5, 1.5% Ga–0.5% Pt/ZSM-5, and 0.5% Pt/ZSM-5 were tested in a fixed-bed reactor system at 615 °C for 2 h time on stream. It was observed that the hydrogen reduction of the fresh Pt-containing catalysts led to an increase in catalytic conversion. The addition of platinum to the gallium catalyst resulted in an increase in the reducibility of the Ga species on the surface of the zeolite. The GaPt catalysts exhibited an increase in ethane conversion and the stability of aromatic production selectivity over the Ga and Pt catalysts. The as-prepared fresh catalysts were characterized by ICP and BET methods. The fresh and reduced catalysts were further analyzed by XRD, H₂-TPR, XPS, pyridine DRIFTS, TGA, and TEM.

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Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Organization:: American Institute of Chemical Engineers; USDOE Office of Fossil Energy (FE); West Virginia Higher Education Policy Commission

OSTI ID:: 1871317

Journal Information:: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 30 Vol. 60; ISSN 0888-5885

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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