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A comparison of the efficiency of catalysts based on Ni, Ni-Co and Ni-Mo in pressure pyrolysis of biomass leading to hythane
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SYSNO ASEP 0549903 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A comparison of the efficiency of catalysts based on Ni, Ni-Co and Ni-Mo in pressure pyrolysis of biomass leading to hythane Author(s) Straka, Pavel (USMH-B) RID, ORCID, SAI
Bičáková, Olga (USMH-B) RID, ORCID, SAI
Hlinčík, T. (CZ)Number of authors 3 Article number 1480 Source Title Catalysts. - : MDPI
Roč. 11, č. 12 (2021)Number of pages 10 s. Language eng - English Country CH - Switzerland Keywords Biomass ; Methanation catalysts ; Pyrolysis ; Sealed reactor Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry Method of publishing Open access Institutional support USMH-B - RVO:67985891 UT WOS 000772107500001 EID SCOPUS 85120633647 DOI 10.3390/catal11121480 Annotation A thermal conversion of biomass to hythane using catalysts was studied. Low-temperature pyrolysis of two different types of biomass was performed in a pressure sealed reactor, and the resulting gas with high contents of CO2 and CO was methanized in a hydrogen atmosphere at a pressure of 30 bar. As catalysts, Ni/Al2O3, NiCo/Al2O3 and NiMo/Al2O3 were used and their catalytic activity was evaluated. The NiCo/Al2O3 catalyst showed the highest catalytic activity, Ni/Al2O3 had a lower but comparable one, and NiMo/Al2O3 showed the lowest activity. The resulting hythane contained 70 vol.% CH4 and 10 vol.% H2 (with NiCo/Al2O3 catalyst, HHV 29.20 MJ/m3, LHV 26.32 MJ/m3 ), or 57 vol.% CH4 and 23 vol% H2 (with Ni/Al2O3, HHV 25.92 MJ/m3, LHV 23.21 MJ/m3 ) or 47 vol.% CH4 and 27 vol.% H2 (with NiMo/Al2O3, HHV 23.23 MJ/m3, LHV 20.76 MJ/m3 ). It has been found that secondary reactions of volatile biomass products are of great importance for successful pressure pyrolysis. Workplace Institute of Rock Structure and Mechanics Contact Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Year of Publishing 2022 Electronic address https://www.mdpi.com/2073-4344/11/12/1480
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