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US 8,951,308 B2Granted
Pyrolysis oil and other combustible compositions from microbial biomass
AssigneeSolazyme, Inc.
InventorsGraham Ellis, Robert Florence, Adriano Galvez, Tyler Painter, Sonia Sousa
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Abstract
Oleaginous microbial biomass is subjected to pyrolysis to make microbial pyrolysis oil for use as a fuel or is otherwise formed into combustible products for the generation of heat and/or light.
Claims13
A method of converting biomass from an oleaginous microbe to a torrefied composition comprising the steps of:
- (1) heating said biomass under substantially oxygen free conditions at a temperature of from about 200° C. to about 300° C.;
- (2) maintaining said heating step for a period of from about 0.25 hours to about 10 hours;
- (3) cooling the heated product;
- and (5) recovering the torrefied composition, wherein said biomass comprises spent microbial biomass, less than about 20% protein by dry cell weight, and about 1-20% lipid by dry cell weight.
1 more element
Dependencies are inferred from the claim text.