Reactivity of Au/La1-xSrxCr1-yNiyO3-δ toward oxidative coupling of methane for C2 and C3 hydrocarbons production

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Publication Details

Author list: Worraphon H., Wiyaratn W., Assabumrungrat S., Laosiripojana N.

Publisher: Faculty of Engineering

Publication year: 2014

Journal: Engineering Journal (0125-8281)

Volume number: 18

Issue number: 4

Start page: 1

End page: 12

Number of pages: 12

ISSN: 0125-8281

eISSN: 0125-8281

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908503949&doi=10.4186%2fej.2014.18.4.1&partnerID=40&md5=ac6e6a992336160c8a6872f5e5af21ea

Languages: English-Great Britain (EN-GB)

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Abstract

La0.8Sr0.2Cr0.9Ni0.1O3 (LSCN) perovskite was calcined in hydrogen atmosphere (LSCN-H2) that provides better activity than LSCN-air. The doping of Au (as Au/LSCN-H2) improved the catalyst stability toward oxidativecoupling of methane (OCM) reaction by increasing the resistance of carbon formation on catalyst surface during the reaction. The suitable CH4:O2 ratio appeared to be 2:1, from which 5.8%, 29.9%, 8.1%, and 5.8% of C2H4, C2H6, C3H6, and C3H8 can be produced respectively. Importantly, the addition of CO2 can significantly promote the yield of C3H8 produced, from which the suitable CO2:CH4 ratio was observed to be 1:2 (with or without O2 presenting). ฉ 2014 Chulalongkorn University 1. All rights reserved.

Keywords

Gold, LSCN perovskite