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Title: Effect of CoMo metal loading on H<inf>2</inf> and CNTs production from biogas by integrative process
Authors: Pichawee Aieamsam-Aung
Paveenuch Nantapong
Raminda Rattanaamonkulchai
Thunyathon Kludpantanapan
Atthapon Srifa
Wanida Koo-Amornpattana
Chularat Sakdaronnarong
Phorndranrat Suchamalawong
Prasert Reubroycharoen
Sirapassorn Kiatphuengporn
Tawatchai Charinpanitkul
Suttichai Assabumrungrat
Suwimol Wongsakulphasatch
Apiluck Eiad-ua
Ryo Watanabe
Choji Fukuhara
Sakhon Ratchahat
Shizuoka University
King Mongkut's University of Technology North Bangkok
Chulalongkorn University
King Mongkut's Institute of Technology Ladkrabang
Thailand National Nanotechnology Center
Mahidol University
Merchant Marine Training Centre
Keywords: Energy;Physics and Astronomy
Issue Date: 1-Jan-2022
Citation: International Journal of Hydrogen Energy. (2022)
Abstract: Effect of CoMo metal loading to MgO (1, 5, 30 and 50 wt%) on conversion of biogas by an integrative process was investigated at 900 °C under atmospheric pressure. The integrative process combines the direct methanation of CO2 in biogas and the CH4 decomposition to upgrade biogas to CH4 and decompose to hydrogen and carbon nanotubes. Methane dissociative reaction is governed by the concentration of active metals on the catalyst surface, while DRM reaction is suppressed. The 30 wt%CoMo catalyst shows the optimal loading for production of high-purity H2 (>90v/v%) and high yield of MWCNTs (2.33 gCNT/gCat-h) with 100%CO2 conversion and 95%CH4 conversion. Meanwhile, 1 wt%CoMo catalyst provided the single-walled CNTs with diameter of 2.5 nm, high surface area of 165 m2/g and high graphitization of IG/ID = 6.14.
ISSN: 03603199
Appears in Collections:Scopus 2022

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