Method for improving biodiesel fuel

Details Method for improving biodiesel fuel Method for improving biodiesel fuel

2011-04-05

2011-04-05

McAvoy, Ellen M (Department: 1775)

Fuel and related compositions

Liquid fuels

Organic nitrogen compound containing

C044S307000, C044S308000, C044S388000, C044S434000

Reexamination Certificate

active

07918905

ABSTRACT:
The addition of strong neutralizing amines to react with free fatty acid in biodiesel fuels that may be left from some synthesis routes can lower the total acid number (TAN) of the biodiesel fuel. Surprisingly, the strong neutralizing amines do not interfere with the biodiesel fuel itself which may be primarily fatty acid methyl esters. These strong neutralizing amines may also improve the oxidative stability of biodiesel fuels.

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patent: 2007/0056213 (2007-03-01), French et al.
patent: 0538819 (1993-04-01), None

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