Upgrading of low value lipid feedstocks for refinery processing
AssigneeChevron U.S.A. Inc.
InventorSven Ivar Hommeltoft
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Abstract
A process is provided for upgrading low value lipid feedstocks for refinery processing. The process includes (a) treating a lipid feedstock comprising at least one fatty acid with a metal oxide catalyst on an oxide support under treating conditions to produce a treated stream, wherein the treating conditions include a temperature in a range of from 400° C. to 700° C.; a pressure in a range of from 0 to 10 MPa; and a liquid hourly space velocity in a range of from 0.1 to 10 h−1; and (b) fractionating the treated stream to obtain a gaseous fraction and a liquid fraction comprising a bio-oil; wherein the bio-oil has a lower content of oxygen and impurities as compared to the lipid feedstock.
Claims20
A process comprising:
- (a) using a combined ketonization and pyrolysis process to treat a lipid feedstock comprising at least one fatty acid glycerol ester over a metal oxide catalyst on an oxide support, under treating conditions, to produce a treated stream,
- the lipid feedstock having at least 10 ppm of chlorine as an impurity;
- and
- (b) fractionating the treated stream to obtain (i) a gaseous fraction and (ii) a liquid fraction comprising the bio-oil,
- the bio-oil comprising a plurality of oxygenated hydrocarbons including ketones, having less than 3 ppm chlorine as an impurity, and having a total acid number of less than 5 mg KOH/g.
Dependencies are inferred from the claim text.