Synthesis of a LaNi03@CeO2core-shell catalyst for carbon dioxde reformng of mode biogas

Name: Juthamard Kiatirabil

Organization : Chulalongkomn University. Faculty of Engineering

Name: Merika Chanthanumataporn

Organization : Chulalongkomn University. Faculty of Engineering

Email : merika.c@chula.ac.th

Name: Suwimol Wongsakulphasatch

Organization : King Mongkut's University of Technology North. Faculty of Engineering

Name: Sakhon Ratchahat

Organization : Mahidol University. Faculty of Engineering

Name: Suttichai Assabumrungrat

Organization : Chulalongkomn University. Faculty of Engineering

keyword: Catalyst synthesis

LCSH: Hydrogenation

; gamma-Valerolactone

LCSH: Reaction mechanisms (Chemistry)

LCSH: Catalytic reforming

Abstract: Syngas is an intermediate product which can be converted into numerous high-value products of fuels, and chemicals. Syngas can be produced from biogas, which is abundant and can be converted into syngas via a reforming process at high temperatures about 600-850 'C. However, catalysts for the reforming process are easily deactivated from sintering of an active metal at high temperatures and carbon deposition on the catalyst surface. The development of perovskite-type catalysts is of interest for dry reforming process due to the strong metal-support interaction and high resistance to carbon deposition. In addition, to increase carbon resistance of the reforming catalysts, a core-shell structure has also received attention due to the effect of active metal encapsulation, which reduces coke formation and metal particles agglomeration. In this research, a core-shell structured LaNiO3@CeO,catalyst.whichconsists f LaNiO as a core and CeO2 as a shell. is sytesid and investigated its performance in dry reforming of a model biogas mixture (CH4/CO2 = 3:2). LaNiO3 perovskite oxide was used as a precursor of Ni/La2O3, while CeO2 was selected as the shell material due to its redox property and high oxygen storage capacity. The biogas reforming reaction was carried out at 600*C under atmospheric pressure. From this study, LaNi03@ce02 core-shell material was successfully synthesized. confirming by XRD and TEM results. For catalytic performance, LaNi03@CeO2 showed higher conversion and selectivity than LaNiOs, but core-shell structure could not reduce coke formation on the catalyst surface.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2023

Modified: 2023-06-02

Issued: 2023-06-02

บทความ/Article

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BibliograpyCitation : In Mae Fah Luang University. School of Science. The Pure and Applied Chemistry International Conference 2023 (PACCON 2023) (pp.260-265). Chiang Rai : Mae Fah Luang University

eng

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