- Patent Number:
11466,230
- Appl. No:
17/326028
- Application Filed:
May 20, 2021
- Abstract:
A process is provided for removing organic chlorides from glyceride oil. The process includes the steps of (a) reacting a glyceride oil comprising organic chlorides with a liquid aqueous system at a temperature of at least 80° C. to form a treated glyceride oil and (b) separating the treated glyceride oil from the liquid aqueous system. The treated glyceride oil has a reduced concentration of organic chlorides compared to the glyceride oil reacted in step (a).
- Inventors:
CHEVRON U.S.A. INC. (San Ramon, CA, US)
- Assignees:
CHEVRON U.S.A. INC. (San Ramon, CA, US)
- Claim:
1. A process for removing organic chlorides from a glyceride oil, consisting essentially of: (a) heating a glyceride oil consisting essentially of organic chlorides and dissolved water at a temperature of at least 80° C. to form a treated glyceride oil, wherein the glyceride oil has a dissolved water content of from 0.05 to 1.0 wt. %; (b) washing the treated glyceride oil with water, thereby generating an aqueous phase comprising consisting essentially of water and chloride compounds and a non-aqueous phase consisting essentially of the treated glyceride oil, wherein the treated glyceride oil has a reduced concentration of organic chlorides compared to the glyceride oil heated in (a); and (c) separating the non-aqueous phase from the aqueous phase.
- Claim:
2. The process of claim 1 , wherein a mass ratio of water to treated glyceride oil is in a range from 1:2 to 100:1.
- Claim:
3. The process of claim 1 , wherein the glyceride oil is a pretreated glyceride oil, the pretreated glyceride oil having been subjected to one or more pretreatment processes before the heating, wherein the pretreatment processes are selected from the group consisting of acid washing, base neutralization, filtration, centrifugation, and any combination thereof.
- Claim:
4. The process of claim 1 , wherein the glyceride oil is selected from the group consisting of vegetable oils, algae oils, animal fats, and any combination thereof.
- Claim:
5. The process of claim 1 , wherein the glyceride oil is selected from the group consisting of yellow grease, brown grease, floatation grease, poultry fat, inedible corn oil, used cooking oil, inedible tallow, floatation tallow, palm sludge oil, and any combination thereof.
- Claim:
6. The process of claim 1 , wherein the glyceride oil has an organic chloride content of from 0.01 ppm to 100 ppm, measured as elemental Cl.
- Claim:
7. The process of claim 1 , wherein the heating is conducted at a temperature of from 100° C. to 300° C.
- Patent References Cited:
9051260 June 2015 Rongione et al.
10221374 March 2019 Fedor et al.
10316268 June 2019 Goodrich et al.
2004/0055209 March 2004 Jakkula
2012/0209017 August 2012 Ouni et al.
2012/0238770 September 2012 Bloomer et al.
2015/0166930 June 2015 Hed et al.
2018/0134987 May 2018 Fedor
105368580 March 2016
2019139533 July 2019
- Other References:
A. Ermacora and K. Hrncirik “Study on the thermal degradation of 3-MCPD esters in model systems simulating deodorization of vegetable oils” Food Chem. 2014, 150, 158-163. cited by applicant
PCT International Search Report, International Appl. No. PCT/IB2022/053453, dated Jun. 6, 2022. cited by applicant
- Assistant Examiner:
Graham, Chantel L
- Primary Examiner:
McAvoy, Ellen M
- Accession Number:
edspgr.11466230
Processing Request
No Comments.