Pt/Al2O3-catalytic deoxygenation for upgrading of Leucaena leucocephala-pyrolysis oil

Autor: Napida Hinchiranan, Kunn Kangvansaichol, Jiraporn Payormhorm, Prapan Kuchonthara, Presert Reubroycharoen
Rok vydání: 2013
Předmět:
Zdroj: Bioresource Technology. 139:128-135
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2013.04.023
Popis: The aim of this study was to improve the quality of bio-oil produced from the pyrolysis of Leucaena leucocephala trunks via catalytic deoxygenation using Pt/Al2O3 (Pt content = 1.32% (w/w)). The minimum molar ratio of oxygen/carbon (O/C) at 0.14 was achieved when the amount of catalyst was 10% (w/w, bio-oil) and was applied under 4 bar of initial nitrogen pressure at 340 C for 1 h. The reaction mechanism of the catalytic deoxygenation, in terms of reforming, water–gas shift and dehydration reactions, was proposed. To consider the effect of different biomass types on the efficiency of catalytic deoxygenation, the bio-oils obtained from the pyrolysis of sawdust, rice straw and green microalgae were likewise evaluated for direct comparison. 2013 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE