Southern
Research Station

• Authors: Feng, Junfeng; Hse, Chung-yun; Yang, Zhongzhi; Wang, Kui; Jiang, Jianchun; Xu, Junming
• Publication Year: 2017
• Publication Series: Scientific Journal (JRNL)
• Source: Applied Catalysis A: General
• DOI: 10.1016/j.apcata.2017.05.022

Abstract

The objective of this study was to find an effective method for converting renewable biomass-derived phenolic compounds into hydrocarbons bio-fuel via in situ catalytic hydrodeoxygenation. The in situ hydrodeoxygenation of biomass-derived phenolic compounds was carried out in methanol-water solvent over bifunctional catalysts of Raney Ni and HZSM-5 or H-Beta. In the in situ hydrodeoxygenation, the hydrogen was donated by aqueous phase reforming of methanol without external hydrogen gas. This reaction pathway for liquid-phase in situ hydrodeoxygenation of phenolic monomers was based on methanol-water as a solvent, stepwise metal-catalyzed hydrogenation, acid-catalyzed dehydration, and metal-catalyzed hydrolysis. The three-step conversion process can be achieved by a one-pot procedure. When HZSM-5 (Si/Al ratio of 25) and Raney Ni were used as the bifunctional catalysts of in situ hydrodeoxygenation, more than 90% conversion of phenolic monomers and dimers, approximately 70–90% selectivity of cyclohexanes and hydrocarbons could be obtained at 220 °C with a reaction time of 7 h. The bifunctional catalysts combined Raney Ni with HZSM-5 can achieve the aqueous-phase reforming of methanol, which coupled with the in situ hydrodeoxygenation of phenolic compounds. Therefore, this in situ hydrodeoxygenation process with bifunctional catalysts provided an efficient route for upgrading biooil containing large amounts of phenolic compounds into renewable hydrocarbon products.

• Citation: Feng, Junfeng; Hse, Chung-yun; Yang, Zhongzhi; Wang, Kui; Jiang, Jianchun; Xu, Junming 2017. Liquid phase in situ hydrodeoxygenation of biomass-derived phenolic compounds to hydrocarbons over bifunctional catalysts. Applied Catalysis A: General. 542: 163-173. https://doi.org/10.1016/j.apcata.2017.05.022.
• Keywords: In situ hydrodeoxygenation, Phenolic compounds, Bifunctional catalysts, Hydrocarbon products
• Posted Date: September 8, 2017
• Modified Date: September 14, 2017

Print Publications Are No Longer Available

In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

Publication Notes

• This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
• Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
• To view this article, download the latest version of Adobe Acrobat Reader.