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Title: ZnO nanoparticle catalysts for use in biodiesel production and method of making

A method of forming a biodiesel product and a heterogeneous catalyst system used to form said product that has a high tolerance for the presence of water and free fatty acids (FFA) in the oil feedstock is disclosed. This catalyst system may simultaneously catalyze both the esterification of FAA and the transesterification of triglycerides present in the oil feedstock. The catalyst system is comprised of a mixture of zinc oxide and a second metal oxide. The zinc oxide includes a mixture of amorphous zinc oxide and zinc oxide nanocrystals, the zinc nanocrystals having a mean grain size between about 20 and 80 nanometers with at least one of the nanocrystals including a mesopore having a diameter of about 5 to 15 nanometers. Preferably, the second metal oxide is a lanthanum oxide, the lanthanum oxide being selected as one from the group of La.sub.2CO.sub.5, LaOOH, and combinations or mixtures thereof.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1164365
Assignee:
Wayne State University (Detroit, MI) GFO
Patent Number(s):
8,895,764
Application Number:
12/485,433
Contract Number:
FG36-05G085005
Resource Relation:
Patent File Date: 2009 Jun 16
Research Org:
Wayne State Univ., Detroit, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Other works cited in this record:

Glycerol transesterification with methyl stearate over solid basic catalysts
journal, September 2001
  • Bancquart, Sébastien; Vanhove, Céline; Pouilloux, Yannick
  • Applied Catalysis A: General, Vol. 218, Issue 1-2, p. 1-11
  • DOI: 10.1016/S0926-860X(01)00579-8

Development of heterogeneous base catalysts for biodiesel production
journal, June 2008

A novel solid superbase of Eu2O3/Al2O3 and its catalytic performance for the transesterification of soybean oil to biodiesel
journal, December 2007

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