Processes and system for producing biofuels and coproducts are described herein. The processes include pretreating a feedstock comprising fatty acid glycerides and free fatty acids to remove contaminants, contacting the feedstock with alcohols and a solid acidic catalyst to produce a biofuel comprising fatty acid alkyl esters, and purifying the biofuel and coproducts from the resulting reaction mixture.

The present invention relates to a process for reducing the content of MOSH and/or MOAH in lauric oil, wherein the process is comprising the step of: a) transesterifying a lauric oil in the presence of an alcohol and obtaining a fatty acid alkyl ester fraction and glycerol fraction, b) purifying the fatty acid alkyl ester fraction from step a) into whole distilled lauric oil fatty acid alkyl esters, and c) transesterifying the whole distilled lauric oil fatty acid alkyl esters from step b) in the presence of glycerol, and obtaining a MOSH and/or MOAH-reduced lauric oil.

The present disclosure related generally to a process for removing chloride-containing organic compounds from renewable and bio-feedstocks. Accordingly, in one aspect, the present disclosure provides for a process for processing a liquid feed, the process comprising: providing a liquid feed that comprises one or more fatty acids and/or fatty acid esters, the liquid feed having a first chloride concentration by weight of chloride-containing organic compounds; and contacting the liquid feed with a solid treatment material to remove at least a fraction of the chloride-containing organic compounds to produce a treated liquid feed having a second chloride concentration that is less than the first chloride concentration, wherein the solid treatment material comprises an alkali metal or an alkaline earth metal in ionic form.

The present disclosure related generally to a process for removing chloride-containing organic compounds from renewable and bio-feedstocks. Accordingly, in one aspect, the present disclosure provides for a process for processing a liquid feed, the process comprising: providing a liquid feed that comprises one or more fatty acids and/or fatty acid esters, the liquid feed having a first chloride concentration by weight of chloride-containing organic compounds; and contacting the liquid feed with a solid treatment material to remove at least a fraction of the chloride-containing organic compounds to produce a treated liquid feed having a second chloride concentration that is less than the first chloride concentration, wherein the solid treatment material comprises an alkali metal or an alkaline earth metal in ionic form.

A method for production of renewable hydrocarbons, including alpha olefins, renewable diesel, synthetic gasoline, and acyl-glycerides, from renewable oils is described herein. Also included is a method for production comprising (a) blending a specific renewable oil mixture with the proper free fatty acid character; (b) acid hydrolysis of the free fatty acids and subsequent purification of the unsaturated and saturated chains; (c) converting the saturated portion into renewable diesel; and (d) reacting the unsaturated free fatty acids via ethenolysis to form alpha olefins, then converting the remaining free fatty acids into either synthetic gasoline or into an acyl-glycerol via glycerolysis.

A method for production of renewable hydrocarbons, including alpha olefins, renewable diesel, synthetic gasoline, and acyl-glycerides, from renewable oils is described herein. Also included is a method for production comprising (a) blending a specific renewable oil mixture with the proper free fatty acid character; (b) acid hydrolysis of the free fatty acids and subsequent purification of the unsaturated and saturated chains; (c) converting the saturated portion into renewable diesel; and (d) reacting the unsaturated free fatty acids via ethenolysis to form alpha olefins, then converting the remaining free fatty acids into either synthetic gasoline or into an acyl-glycerol via glycerolysis.

Membrane-based method of washing and deacidification of oils, wherein a stream of oil is conveyed from an oil reservoir along one side of porous hydrophobic membrane, and washing aqueous solution is conveyed along another side of this membrane. The membranes form hollow fibers, and their total surface area and porosity are large enough for efficient removal of fatty acids, water, ions and hydrophilic organic impurities from oil. Membrane pore size is small enough, so that hydrodynamic mixing of oil and aqueous solution does not take place. Additional stabilization of oil/water meniscus in the pores is achieved by transmembrane pressure difference.

Membrane-based method of washing and deacidification of oils, wherein a stream of oil is conveyed from an oil reservoir along one side of porous hydrophobic membrane, and washing aqueous solution is conveyed along another side of this membrane. The membranes form hollow fibers, and their total surface area and porosity are large enough for efficient removal of fatty acids, water, ions and hydrophilic organic impurities from oil. Membrane pore size is small enough, so that hydrodynamic mixing of oil and aqueous solution does not take place. Additional stabilization of oil/water meniscus in the pores is achieved by transmembrane pressure difference.

A method of producing high purity polyol esters comprises reacting a polyol with an excess amount of a linear or branched aliphatic monocarboxylic C3-20 acid to esterify less than the total amount of the polyol present to form an intermediate reaction composition having a hydroxyl value of from 7 to about 50 mg KOH/g. An anhydride of the corresponding linear or branched aliphatic monocarboxylic C3-20 acid is added to the intermediate reaction composition in an amount of from 1 to about 2.5 equivalents of available OH in the intermediate composition to form a reaction mixture. The reaction mixture is heated for 5-30 minutes or until all of the corresponding anhydride has reacted to form a reaction product. The reaction product is then de-acidified. No metal or acid catalyst or bleaching agents are present in any of the above reaction steps at a concentration above about 15 ppm.

The invention relates to a lubricity additive for fuel, particularly for diesel fuel, directly obtained from the acidification of a soapstock produced by a method for refining at least one vegetable and/or animal oil. The lubricity additive according to the invention is more specifically used for fuels that have a low sulfur content, for example, lower than 500 ppm (by weight).