Method of producing estolide having high structural stability
Disclosed is a method of producing an estolide having high structural stability, including: a) preparing a fatty acid mixture from biomass-derived oil; b) separating the fatty acid mixture into a C16 fatty acid and a C18 fatty acid; c) converting the C18 fatty acid into a C18 or C17 linear internal olefin; and d) subjecting the C18 or C17 linear internal olefin and the C16 fatty acid to an estolide reaction, thus obtaining an estolide.
1. A method of producing an estolide having high structural stability, comprising:
a) preparing a fatty acid mixture comprising C4 to C24 from biomass-derived oil;
b) separating the fatty acid mixture into a C16 fatty acid and a C18 fatty acid, respectively;
c) converting the separated C18 fatty acid into a C18 or C17 linear internal olefin; and
d) subjecting the C18 or C17 linear internal olefin and the separated C16 fatty acid to an estolide reaction, wherein the estolide reaction is a crosslinking reaction of unsaturated double bonds of hydrocarbons with a fatty acid using an acid catalyst, thus obtaining an estolide.
2. A method of producing an estolide having high structural stability, comprising:
A) preparing a fatty acid mixture comprising C4 to C24 from biomass-derived oil; and
B) subjecting the fatty acid mixture to an estolide reaction and then hydrodeoxygenation, wherein the estolide reaction is a crosslinking reaction of unsaturated double bonds of hydrocarbons with a fatty acid using an acid catalyst, thus obtaining an estolide.
3. The method of claim 1 , wherein c) comprises converting the C18 fatty acid into a C18 linear internal olefin through partial hydrogenation and dehydration.
4. The method of claim 1 , wherein c) comprises converting the C18 fatty acid into a C17 linear internal olefin through decarbonylation.
5. The method of claim 1 , further comprising e) performing hydrotreating to increase stearic acid content, between steps a) and b).
6. The method of claim 1 , further comprising f) hydrotreating the C18 fatty acid separated in b) to increase stearic acid content, between steps b) and c).
7. The method of claim 2 , further comprising C) performing hydrotreating to increase stearic acid content, after A).
8. The method of claim 2 , further comprising D) separating or purifying the estolide obtained in B) to obtain a desired estolide.
9. The method of claim 1 , wherein a) or A) is performed through de-esterification or hydrolysis of triglyceride in the biomass-derived oil.
10. The method of claim 2 , wherein a) or A) is performed through de-esterification or hydrolysis of triglyceride in the biomass-derived oil.
11. An estolide, produced by the method of claim 1 , wherein the estolide comprises an estolide represented by Chemical Formula 1 or Chemical Formula 2 below:
12. An estolide, produced by the method of claim 2 , wherein the estolide comprises an estolide represented by Chemical Formula 1 or Chemical Formula 2 below:
13. A lubricating oil, comprising an estolide produced by the method of claim 1 , wherein the estolide comprises an estolide represented by Chemical Formula 1 or Chemical Formula 2 below:
14. A lubricating oil, comprising an estolide produced by the method of claim 2 , wherein the estolide comprises an estolide represented by Chemical Formula 1 or Chemical Formula 2 below: