×

Process to produce biodiesel and/or fuel oil

  • US 8,969,030 B2
  • Filed: 05/02/2008
  • Issued: 03/03/2015
  • Est. Priority Date: 05/02/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A process for producing biodiesel and/or fuel oil, comprising the steps of:

  • (a) cultivating oil-producing microbial biomass under conditions sufficient for oil accumulation thereof using residues of sugar cane as a carbon source, wherein the microbe is a yeast or fungus;

    (b) obtaining a liquid effluent resulting from the cultivating of step (a) and in the obtained liquid effluent cultivating oil-producing algal biomass under conditions sufficient for oil accumulation thereof;

    (c) extracting the accumulated oil from the oil-producing microbial biomass and the oil-producing algal biomass using organic solvent or thermopressurized direct liquefaction; and

    (d) reacting the extracted oil with an alcohol to produce the biodiesel and/or fuel oil.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×