A novel nickel catalyst supported on activated coal fly ash for syngas production via biogas dry reforming

Yuchen Gao, Jianguo Jiang, Yuan Meng, Aikelaimu Aihemaiti, Tongyao Ju, Xuejing Chen and Feng Yan

Renewable Energy, 2020, vol. 149, issue C, 786-793

Abstract: In this study, we prepared novel Ni catalysts via wet impregnation of a support formed of industrial solid waste. Raw, alkali-treated, and alkali/acid co-treated coal fly ash were used for the first time as support for biogas dry reforming catalysts. The proposed two-step activation approach was highly effective in improving the surface area and changing the elemental composition of supports, thus enhancing the activity of the Ni catalysts. All catalysts prepared in this study effectively catalyzed the biogas dry reforming reaction; the catalyst using alkali/acid co-treated coal fly ash as support exhibited the best catalytic activity, with CH4 and CO2 conversion rates exceeding 95%, and good stability during 12 h of biogas dry reforming at 850 °C. This catalyst is highly competitive in terms of both activity and stability compared with most current Ni catalysts formed using commercial SiO2 supports. This study provides a new method for high-value application of coal fly ash, facilitating the manufacture of promising catalysts for biogas dry reforming.

Keywords: Biogas; dry reforming; Coal fly ash; Catalyst; Renewable energy; Syngas (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148119319688
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:149:y:2020:i:c:p:786-793

DOI: 10.1016/j.renene.2019.12.096

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().