 Synthesis of Ni/Clinoptilolite catalyst by modified polyol method for upgrading of bio-oil produced from hazelnut husk pyrolysisEzgi Bayrakdar Ates Renewable Energy, 2023, vol. 219, issue P2 Abstract: Bio-oil obtained by pyrolysis of biomass contains high amounts of oxygenated compounds as a result its physicochemical properties may give rise to certain challenges. Zeolite-based catalysts, such as clinoptilolite, have the ability to convert oxygenated compounds into less oxygenated compounds.10%Ni/Clinoptilolite catalyst was synthesized by modified polyol method as an alternative to known methods instead of common catalysts to improve bio-oil quality. Catalyzed/uncatalyzed pyrolysis of hazelnut husk (HH) was conducted for two distinct retention times (15 s and 25 s) and two catalyst/biomass ratios (1:1 and 2:1) to determine the effect of the catalyst. The optimal catalyst/biomass ratio for obtaining the highest aromatic hydrocarbon content was found to be two, whereas the highest aliphatic hydrocarbon content was observed at a ratio of one. An increase in retention time from 15 s to 25 s was found to have a positive impact on the composition of bio-oil, whereas it decreased the aromatic hydrocarbon content only when the ratio of catalyst to biomass was two. Keywords: Ni/Clinoptilolite catalyst; Catalytic pyrolysis; Hazelnut husk; Hydrazine reduction; Polyol method (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:219:y:2023:i:p2:s0960148123014751 DOI: 10.1016/j.renene.2023.119560 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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