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Recent developments in multifunctional catalysts for fatty acid hydrodeoxygenation as a route towards biofuels

DOI: 10.1016/j.mcat.2021.111492 DOI Help

Authors: Shengzhe Ding (The University of Manchester) , Christopher M. A. Parlett (The University of Manchester; University of Manchester at Harwell; Diamond Light Source; Catalysis Hub, Research Complex at Harwell) , Xiaolei Fan (The University of Manchester)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Molecular Catalysis , VOL 42

State: Published (Approved)
Published: March 2021

Abstract: Catalytic hydrodeoxygenation (HDO) provides a promising route for upgrading biomass-derived fatty acids to alkanes, which are potential biofuels (e.g. jet fuel (C8–C16) and diesel (C12–C22)) that could reduce our reliance on unsustainable fossil fuels. Currently, catalytic HDO, conducted over catalysts such as molybdenum disulfide, necessitates harsh operating conditions (>300 °C) which is both environmentally and economically unsustainable and promotes unwanted side reactions, e.g. cracking, which compromises product selectivity. Accordingly, the development of novel catalysts, which enable efficient and sustainable HDO, under milder operating conditions, and their translation from lab bench to large-scale production are highly desired. This review discusses the recent development of heterogeneous catalysts for HDO (including reaction pathways, mechanisms, and side reactions) and explores design strategies for the development of new multifunctional catalysts with potential to enable future development of HDO processes under mild conditions. In particular, we consider the sequential cascade transformation of fatty acids into fatty alcohols (via hydrodeoxygenation) and then hydrocarbons (via dehydration and hydrogenation), which requires the coupling of different but complementary catalytic sites, as an attractive alternative mild HDO strategy.

Journal Keywords: Hydrodeoxygenation; Biofuel; Fatty acids; Noble metal catalysts; Zeolites

Diamond Keywords: Biofuel

Subject Areas: Chemistry, Energy

Technical Areas:

Added On: 03/03/2021 09:08

Discipline Tags:

Bioenergy Earth Sciences & Environment Biotechnology Sustainable Energy Systems Energy Climate Change Physical Chemistry Catalysis Chemistry Engineering & Technology

Technical Tags: