The disclosed apparatus, systems and methods relate to the conversion of high free fatty acid (“HFFA”) containing oils defined as oils containing 20-100% free fatty acids (“FFA”) and low free fatty acid (“LFFA”) containing oils defined as oils containing 1-20% free fatty acids (FFA) into oil with less than about 0.5-1% FFA. If the feedstock is HFFA oil, the process includes a combination of partial glycerolysis of HFFA oils to produce LFFA oils and subsequent stripping of LFFA oils to produce NFFA oils via steam distillation. If the feedstock is LFFA oil, the process includes stripping of LFFA oils to produce NFFA oils via steam distillation and subjecting FFA to partial glycerolysis to convert FFA to oil.

The disclosed apparatus, systems and methods relate to the conversion of high free fatty acid (“HFFA”) containing oils defined as oils containing 20-100% free fatty acids (“FFA”) and low free fatty acid (“LFFA”) containing oils defined as oils containing 1-20% free fatty acids (FFA) into oil with less than about 0.5-1% FFA. If the feedstock is HFFA oil, the process includes a combination of partial glycerolysis of HFFA oils to produce LFFA oils and subsequent stripping of LFFA oils to produce NFFA oils via steam distillation. If the feedstock is LFFA oil, the process includes stripping of LFFA oils to produce NFFA oils via steam distillation and subjecting FFA to partial glycerolysis to convert FFA to oil.

The present invention relates to a preparation method for a polyunsaturated fatty acid-calcium, primarily comprising directly reacting a polyunsaturated fatty acid material with a water-soluble calcium compound to obtain a polyunsaturated fatty acid-calcium salt. The present invention has a simple technical process, short reaction time, and high reaction yield. The produced polyunsaturated fatty acid-calcium product is of high quality, and relatively less byproducts and waste water are produced. The process is overall environmentally friendly and has small safety risks, and is suitable for scaled production.

The present invention concerns a method for preparing dehydrated avocados, a method for preparing an unsaponifiable-rich avocado oil, a method for preparing an avocado cake rich in sugars and proteins, and a method for preparing an unsaponifiable fraction; these methods all comprising a step of drying avocado slices by means of microwaves until dehydrated avocados are obtained having residual moisture less than or equal to 5%; during this step, the water evaporated under the action of the microwaves being eliminated by a warm air stream with a temperature less than or equal to 80° C. and/or by air extraction.

A method for producing an EPA alkyl ester-containing composition includes: preparing a raw material oil containing an EPA alkyl ester in an amount of from 50 to 92% by mass in the total fatty acids, in which a mass ratio of a DHA alkyl ester to the EPA alkyl ester contained in the raw material oil is 3.3% by mass or less and further a ratio of trans isomers in the EPA alkyl ester contained in the raw material oil is 2% by mass or less; bringing the raw material oil into contact with an aqueous solution containing a silver salt; recovering the aqueous solution containing the silver salt brought into contact with the raw material oil; bringing the recovered aqueous solution containing the silver salt into contact with an organic solvent; and recovering the organic solvent brought into contact with the aqueous solution containing the silver salt.

A method for producing an EPA alkyl ester-containing composition includes: preparing a raw material oil containing an EPA alkyl ester in an amount of from 50 to 92% by mass in the total fatty acids, in which a mass ratio of a DHA alkyl ester to the EPA alkyl ester contained in the raw material oil is 3.3% by mass or less and further a ratio of trans isomers in the EPA alkyl ester contained in the raw material oil is 2% by mass or less; bringing the raw material oil into contact with an aqueous solution containing a silver salt; recovering the aqueous solution containing the silver salt brought into contact with the raw material oil; bringing the recovered aqueous solution containing the silver salt into contact with an organic solvent; and recovering the organic solvent brought into contact with the aqueous solution containing the silver salt.

According to one or more embodiments of the present disclosure, a method for producing an emulsifier suitable for use in an emulsion drilling fluid may comprise esterifying a processed vegetable oil to produce a first mixture comprising fatty acid alkyl esters. The processed vegetable oil may comprise less than 1 wt. % of compounds having an atmospheric boiling point less than or equal to 150° C. The method may further comprise removing at least 99 wt. % of each of glycerol, water, and short-chain alcohols having a main chain of less than or equal to 12 carbon atoms from the first mixture to produce a modified mixture, and hydrolyzing the fatty acid alkyl esters of the modified mixture with a base to produce the emulsifier comprising at least one salt of a fatty acid. Emulsion drilling fluids comprising the emulsifier and methods of producing emulsion drilling fluids are also disclosed.

Described herein are methods of preparing compounds derived from triglycerides or condensation polymers such as polyesters and/or polyamides. The methods may include subjecting triglyceride or condensation polymer containing matter to mechanical processing in the presence of a nucleophile.

Described herein are methods of preparing compounds derived from triglycerides or condensation polymers such as polyesters and/or polyamides. The methods may include subjecting triglyceride or condensation polymer containing matter to mechanical processing in the presence of a nucleophile.

A process for extraction of crude oil from distillers dried grain solubles and/or distillers dried grains using a solvent extraction process and producing corn distillers meal that may be used as an animal feed supplement is disclosed. The corn distillers meal may be used as a crude protein supplement for use in a livestock feed diet, poultry feed diet, aquatic feed diet or the like. The solvent extracted crude oil may be suitable for other processes, including oleochemical processing for personal care and home care products, biodiesel production, and/or renewable diesel production from hydro-treating the extracted oil to make green diesel fuel.