2018-Sustainable Industrial Processing Summit
SIPS2018
Volume 6. New and Advanced Materials and Technologies
| Editors: | F. Kongoli, F. Marquis, P. Chen, T. Prikhna, N. Chikhradze |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 392 pages |
| ISBN: | 978-1-987820-92-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Hydrogen Production by Biogas Reforming Over Sol-gel Made Nanocatalysts
Sholpan Itkulova1; Sholpan Kussanova1; Kirill Valishevskiy1; Yerzhan Boleubayev1;1D.V. SOKOLSKY INSTITUTE OF FUEL, CATALYSIS AND ELECTROCHEMISTRY, Almaty, Kazakhstan;
Type of Paper: Regular
Id Paper: 99
Topic: 43
Abstract:
Hydrogen is the most accredited fuel for the future, and hence, several efforts are focused towards the development of processes and catalysts for producing hydrogen rich syngas from bio-fuels, including biogas. Conversion of biogas to produce syngas (a mix of hydrogen and carbon oxide) is not yet a commercially used process, due to the lack of highly effective catalysts with resistance to or absence of coke formation. The sol-gel method, as one of approaches to create nanomaterials, is extensively applied to prepare nanosized catalysts. This strategy leads to narrow size distribution of metal particles, their high thermal resistance against agglomeration, and low deactivation rate.
This work deals with the design and synthesis of catalysts prepared by the sol-gel method (Pechini) and their testing in biogas reforming to produce hydrogen rich syngas. The multicomponent Co-based catalysts with varied metal content were synthesized according to the slightly modified procedure [1]. The catalysts were studied by a number of physico-chemical methods (TEM, SEM, BET, TPR etc.) The catalytic properties of new nanomaterials were tested in dry and steam reforming of a model biogas with a ratio CH<sub>4</sub>/CO<sub>2</sub>=1in a flow tubular reactor under atmospheric pressure, gas hourly space velocity - 1000 h-1, and varying temperature within 300-800°C and steam amount within 0-2 vol. parts. The synthesized catalysts perform a high stable activity in both dry and steam biogas reforming with producing hydrogen rich syngas. At 700°C, P=0.1 MPa, and GHSV=1000 h-1, methane conversion reaches 99.0% and syngas produced gets a ratio of H<sub>2</sub>/CO =1.8.