10-02-2022 дата публикации
Номер: US20220041938A1
Принадлежит:
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; 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. 2. The process of claim 1 , wherein the lipid feedstock comprising at least one fatty acid is selected from the group consisting of acidulated soap-stocks claim 1 , fatty acid distillates from physical refining of plant oils or animal fats claim 1 , distillers corn oil (DCO) from ethanol production claim 1 , waste cooking oils claim 1 , lard claim 1 , brown grease claim 1 , yellow grease claim 1 , trap grease claim 1 , waste fats claim 1 , low-grade oils claim 1 , supercritical water liquefaction oils (SCWL oils) claim 1 , plant oils claim 1 , animal fats claim 1 , and any combination thereof.3. The process of claim 1 , wherein the metal oxide catalyst comprises a metal selected from the group consisting of Na claim 1 , K claim 1 , Mg claim 1 , Ca claim 1 , Sr claim 1 , Cr claim 1 , Mo claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Zn claim 1 , Al claim 1 , rare earth metals claim 1 , and any combination thereof.4. The process of claim 3 , wherein the metal oxide comprises a metal selected from the group consisting of Na claim 3 , K claim 3 , Ca claim 3 , Mg claim 3 , and any combination thereof.5. The process of claim 1 , wherein the metal oxide catalyst comprises CaO.6. The process of claim 1 , wherein the oxide support is selected from the group ...
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