System and process for production of fatty acids and wax alternatives from triglycerides
View Patent ↗A method of producing volatilized fatty acids by heating a feedstock comprising at least one fat or oil in a reactor under inert vacuum to volatilize fatty acids, and removing volatilized fatty acids from bottoms residue comprising cross-linked oil. A system for stripping fatty acids from triglycerides, the system comprising a reactor, heating apparatus and a vacuum pump capable of pulling a vacuum in the range of from 1 kPa to 50 kPa on the reactor. A system for producing a hydrogenated product including a reactor comprising an inlet for a stream comprising triglycerides, an outlet for volatilized fatty acids, and an outlet for a cross-linked product, heating apparatus, a vacuum pump capable of pulling a vacuum in the range of from 1 kPa to 50 kPa on the reactor, and a hydrogenation reactor, wherein an inlet of the hydrogenation reactor is fluidly connected to the outlet for cross-linked product.
1. A method of producing volatilized fatty acids, the method comprising:
heating a feedstock comprising at least one fat or oil in a reactor under inert vacuum to volatilize fatty acids, wherein said feedstock further comprises at least one antioxidant; and
removing volatilized fatty acids from bottoms residue comprising cross-linked oil.
2. The method of claim 1 wherein the feedstock is selected from the group consisting of butterfat, cocoa butter, cocoa butter substitutes, illipe fat, kokum butter, milk fat, mowrah fat, phulwara butter, sal fat, shea fat, bomeo tallow, lard, lanolin, beef tallow, mutton tallow, other animal tallow, canola oil, castor oil, coconut oil, coriander oil, corn oil, cottonseed oil, hazelnut oil, hempseed oil, linseed oil, mango kernel oil, meadowfoam oil, Neatsfoot oil, olive oil, palm oil, palm kernel oil, palm olein, palm stearin, palm kernel olein, palm kernel stearin, peanut oil, rapeseed oil, rice bran oil, safflower oil, sasanqua oil, soybean oil, sunflower seed oil, tall oil, tsubaki oil, vegetable oils, marine oils, and combinations thereof.
3. The method of claim 2 wherein the feedstock comprises soybean oil.
4. The method of claim 1 wherein the feedstock has an iodine value of greater than 70.
5. The method of claim 1 wherein the at least one antioxidant comprises ascorbyl palmitate and tocopherol.
6. The method of claim 1 further comprising contacting the feedstock with a crosslinking catalyst during heating.
7. The method of claim 1 wherein heating is to a temperature in the range of from about 200° C. to about 600° C.
8. The method of claim 1 wherein the vacuum is in the range of from 1.0 kPa to about 50 kPa.
9. The method of claim 1 further comprising condensing the volatilized fatty acids to obtain a fatty acid condensate.
10. The method of claim 1 further comprising introducing water into the reactor to promote hydrolysis.
11. The method of claim 1 further comprising fractionating the fatty acids.
12. The method of claim 1 wherein removing volatilized fatty acids from bottoms residue is performed with a wiped film evaporator.
13. The method of claim 1 wherein less than about 6 weight percent of the volatilized fatty acids are trans-isomers.