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Title: Methods and catalysts for making biodiesel from the transesterification and esterification of unrefined oils

Abstract

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 according to one aspect of the present disclosure represents a class of zinc and lanthanum oxide heterogeneous catalysts that include different ratios of zinc oxide to lanthanum oxides (Zn:La ratio) ranging from about 10:0 to 0:10. The Zn:La ratio in the catalyst is believed to have an effect on the number and reactivity of Lewis acid and base sites, as well as the transesterification of glycerides, the esterification of fatty acids, and the hydrolysis of glycerides and biodiesel.

Inventors:
 [1];  [2];  [3]
  1. Detroit, MI
  2. Grosse Pointe Park, MI
  3. West Bloomfield, MI
Issue Date:
Research Org.:
Nextenergy
Sponsoring Org.:
USDOE
OSTI Identifier:
1040007
Patent Number(s):
8,163,946
Application Number:
12/468,309
Assignee:
Wayne State University (Detroit, MI)
DOE Contract Number:  
FG36-05GO85005
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS

Citation Formats

Yan, Shuli, Salley, Steven O, and Ng, K Y. Simon. Methods and catalysts for making biodiesel from the transesterification and esterification of unrefined oils. United States: N. p., 2012. Web.
Yan, Shuli, Salley, Steven O, & Ng, K Y. Simon. Methods and catalysts for making biodiesel from the transesterification and esterification of unrefined oils. United States.
Yan, Shuli, Salley, Steven O, and Ng, K Y. Simon. Tue . "Methods and catalysts for making biodiesel from the transesterification and esterification of unrefined oils". United States. https://www.osti.gov/servlets/purl/1040007.
@article{osti_1040007,
title = {Methods and catalysts for making biodiesel from the transesterification and esterification of unrefined oils},
author = {Yan, Shuli and Salley, Steven O and Ng, K Y. Simon},
abstractNote = {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 according to one aspect of the present disclosure represents a class of zinc and lanthanum oxide heterogeneous catalysts that include different ratios of zinc oxide to lanthanum oxides (Zn:La ratio) ranging from about 10:0 to 0:10. The Zn:La ratio in the catalyst is believed to have an effect on the number and reactivity of Lewis acid and base sites, as well as the transesterification of glycerides, the esterification of fatty acids, and the hydrolysis of glycerides and biodiesel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {4}
}

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Works referenced in this record:

Simultaneous transesterification and esterification of unrefined or waste oils over ZnO-La2O3 catalysts
journal, February 2009


Room-Temperature Transesterification of Edible and Nonedible Oils Using a Heterogeneous Strong Basic Mg/La Catalyst
journal, May 2008

  • Babu, N. Seshu; Sree, Rekha; Prasad, P. S. Sai
  • Energy & Fuels, Vol. 22, Issue 3
  • DOI: 10.1021/ef700687w

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