Abstract:
The invention provides methods of manufacturing alkanes from triglyceride oils produced through fermentation of oil-bearing microbes. The processes provided herein can utilize a variety of carbohydrate feedstocks including cane bagasse, sugar beet pulp, corn stover, glycerol, corn starch, sorghum, molasses, waste glycerol, and other renewable materials. These processes further comprise hydrotreating, hydrocracking, isomerization, distillation, and other petrochemical processes for use with oil-bearing microbes and products derived therefrom to manufacture fuels. Particular embodiments include the manufacture of ASTM D975 and ASTM D1655 compliant fuels. Genetically engineered microbes provided herein can be used in the manufacture of renewable diesel and renewable jet fuel.
Abstract:
Biomass feedstocks (e.g., plant biomass, animal biomass, and municipal waste biomass) are processed to produce useful products, such as fuels. For example, systems are described that can use feedstock materials, such as cellulosic and/or lignocellulosic materials and/or starchy materials, to produce a product or intermediate, e.g., energy, a food, a fuel, or a material.
Abstract:
The present invention provides processes, methods, and systems for converting biomass-derived feedstocks to liquid fuels and chemicals. The method generally includes the reaction of a hydrolysate from a biomass deconstruction process with hydrogen and a catalyst to produce a reaction product comprising one of more oxygenated compounds. The process also includes reacting the reaction product with a condensation catalyst to produce C4+ compounds useful as fuels and chemicals.
Abstract:
Methods and systems for making dibasic esters and/or dibasic acids using metathesis are generally disclosed. In some embodiments, the methods comprise reacting a terminal olefin ester with an internal olefin ester in the presence of a metathesis catalyst to form a dibasic ester and/or dibasic acid. In some embodiments, the terminal olefin ester or the internal olefin ester are derived from a renewable feedstock, such as a natural oil feedstock. In some such embodiments, the natural oil feedstock, or a transesterified derivative thereof, is metathesized to make the terminal olefin ester or the internal olefin ester.
Abstract:
The present invention relates to the Rhodosporidium toruloides CECT 13085 strain, as well as to uses thereof for obtaining microbial biomass rich in triglycerides and for producing oils of a microbial origin in the presence of lignocellulosic biomass hydrolysates.
Abstract:
A carboxydotrophic acetogenic recombinant microorganism is modified so that it produces biodiesel and optionally one or more other products by fermentation of a substrate comprising CO. Biodiesel is produced by microbial fermentation of a substrate comprising CO. The recombinant microorganism is modified to express one or more exogenous enzymes in the biodiesel biosynthesis pathway not present in a parental microorganism from which the recombinant microorganism is derived. The one or more enzymes comprise a nonspecific acyltransferase.
Abstract:
A transesterification catalyst that is heterogeneous and a method for preparing said transesterification catalyst are provided. The catalyst can be used in a variety of transesterification reactor configurations including CSTR (continuous stirred tank reactors), ebullated (or ebullating) beds or any other fluidized bed reactors, and PFR (plug flow, fixed bed reactors). The catalyst can be used for manufacturing commercial grade biodiesel, biolubricants and glycerin.
Abstract:
Methods are provided for refining natural oil feedstocks and producing dibasic esters and/or dibasic acids. The methods comprise reacting a terminal olefin with an internal olefin in the presence of a metathesis catalyst to form a dibasic ester and/or dibasic acid. In certain embodiments, the olefin esters are formed by reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters, separating the olefins from the esters in the metathesized product, and transesterifying the esters in the presence of an alcohol to form a transesterified product having olefin esters.
Abstract:
The invention provides synergistic biofuel blends comprising a petroleum distillate and two or more fatty acid alkyl ester-containing biofuels. Methods for making synergistic biofuel blends are also provided.
Abstract:
The present invention provides a composition comprising 10-40 mass! of C8-30 linear alkanes, up to 20 mass % of C7-20 aromatic hydrocarbons, at least 90 mass % of which are monoaromatic, and no more than 1 massl in total of oxygen containing compounds; wherein the total amount of C8-30 alkanes in the composition is 50-95 mass % (and the total amount of C8-30 alkanes, C7-20 aromatic hydrocarbons and C8-30 cycloalkanes is at least 95 massl; and wherein the amounts are based on the mass of the composition. Also provided is a method for producing the composition comprising the step of hydroprocessing a biological feedstock using a catalyst and the step of fractionating the product of the hydroprocessing step.