Effect of CoMo metal loading on H<inf>2</inf> and CNTs production from biogas by integrative process
Issued Date
2022-12-19
Resource Type
ISSN
03603199
Scopus ID
2-s2.0-85133691726
Journal Title
International Journal of Hydrogen Energy
Volume
47
Issue
98
Start Page
41444
End Page
41460
Rights Holder(s)
SCOPUS
Bibliographic Citation
International Journal of Hydrogen Energy Vol.47 No.98 (2022) , 41444-41460
Suggested Citation
Aieamsam-Aung P., Nantapong P., Rattanaamonkulchai R., Kludpantanapan T., Srifa A., Koo-Amornpattana W., Sakdaronnarong C., Suchamalawong P., Reubroycharoen P., Kiatphuengporn S., Charinpanitkul T., Assabumrungrat S., Wongsakulphasatch S., Eiad-ua A., Watanabe R., Fukuhara C., Ratchahat S. Effect of CoMo metal loading on H<inf>2</inf> and CNTs production from biogas by integrative process. International Journal of Hydrogen Energy Vol.47 No.98 (2022) , 41444-41460. 41460. doi:10.1016/j.ijhydene.2022.05.216 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/84540
Title
Effect of CoMo metal loading on H<inf>2</inf> and CNTs production from biogas by integrative process
Other Contributor(s)
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.