Catalytic Hydrodeoxygenation of Bio-oil Model Compounds over Pt/HY Catalyst

• Published in: Scientific reports Vol. 6; no. 1; p. 28765
• Main Authors: Lee, Heejin, Kim, Hannah, Yu, Mi Jin, Ko, Chang Hyun, Jeon, Jong-Ki, Jae, Jungho, Park, Sung Hoon, Jung, Sang-Chul, Park, Young-Kwon
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 30.06.2016; Nature Publishing Group
• Subjects: 639/766/930/12; 639/766/94; Acids; Aluminum; Biomass; Chemical engineering; Environmental engineering; Humanities and Social Sciences; Hydrogenation; Lignin; multidisciplinary; Phenols; Precious metals; Ratios; Science; Science (multidisciplinary); Zeolites
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/srep28765

The hydrodeoxygenation of a model compound of lignin-derived bio-oil, guaiacol, which can be obtained from the pyrolysis of biomass to bio-oil, has attracted considerable research attention because of its huge potential as a substitute for conventional fuels. In this study, platinum-loaded HY zeolites (Pt/HY) with different Si/Al molar ratios were used as catalysts for the hydrodeoxygenation of guaiacol, anisole, veratrole, and phenol to a range of hydrocarbons, such as cyclohexane. The cyclohexane (major product) yield increased with increasing number of acid sites. To produce bio-oil with the maximum level of cyclohexane and alkylated cyclohexanes, which would be suitable as a substitute for conventional transportation fuels, the Si/Al molar ratio should be optimized to balance the Pt particle-induced hydrogenation with acid site-induced methyl group transfer. The fuel properties of real bio-oil derived from the fast pyrolysis of cork oak was improved using the Pt/HY catalyst.