Hydrocarbon production from carboxylic acids via catalytic deoxygenation: Required catalytic properties

Zhong He, Xianqin Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


Substitution of fossil-derived fuels by pyrolysis bio-oils is a potentially economic solution. However, the high acidity of pyrolysis bio-oils caused by carboxylic acids constitutes a big challenge to existing petroleum refining facilities. Catalysts are crucial for the successful deoxygenation of carboxylic acids to products that are less corrosive to reactors. This review addresses recent advances in the deoxygenation of carboxylic acids from pyrolysis bio-oils over many different types of catalysts, focusing on the required catalytic properties for partial or complete deoxygenation. Recent achievements suggest that deoxygenation of carboxylic acids can be fulfilled when the following catalytic properties are present: hydrogenation/hydrogenolysis sites such as metal sites or Brønsted acid sites to deliver hydrogen, acid sites for alcohol dehydration, and proper metal-oxygen bond strength in the oxide support for oxygen vacancy creation and regeneration. A synergic effect of these sites determines the final deoxygenation: partial or complete. Modification to the metal sites and acid sites can be achieved in a simple manner by proper promoter addition, which enables to tune the selectivity of the deoxygenation products to the desired ones.

Original languageEnglish (US)
Title of host publicationNovel Materials for Catalysis and Fuels Processing
PublisherAmerican Chemical Society
Number of pages29
ISBN (Print)9780841228115
StatePublished - Jun 11 2013

Publication series

NameACS Symposium Series
ISSN (Print)0097-6156
ISSN (Electronic)1947-5918

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering


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