Abstract:
Use of a comb polymer for reducing the loss in viscosity of a lubricating composition for the crankcase of an internal combustion engine, wherein the internal combustion engine is fuelled by a fuel composition comprising a fatty acid alkyl ester.
Abstract:
The present invention is related to hydrocarbon compositions comprising butanol that have substantially the same or improved performance properties than comparable hydrocarbon compositions comprising ethanol and to methods for identifying such compositions.
Abstract:
A process for making a bio-diesel and a bio-naphtha from a complex mixture of natural occurring fats & oils may include subjecting the complex mixture to a refining treatment for removing non-triglyceride and non-fatty acid components, thereby obtaining refined oils. The complex mixture or refined oils may be subjected hydrolysis for obtaining glycerol and free fatty acids. The free fatty acids may be subjected to fractionation for obtaining: a liquid part (phase L); and a solid part (phase S). The phase L may be transformed into alkyl-esters as bio-diesel by an esterification. The phase S may be transformed into linear paraffins as the bio-naphtha by: hydrodeoxygenation or decarboxylation of the free fatty acids; or obtaining fatty acids soaps from the phase S and decarboxylation of the fatty acids soaps.
Abstract:
Disclosed here are compositions rich in omega-7 fatty acids, including palmitoleic acid, and products rich in omega-7 fatty acids derived from algal biomass. The algae and/or compositions rich in omega-7 fatty acids may be used in products or as ingredients of products. Methods and systems for increasing the production or concentration of omega-7 fatty acids, and isolating omega-7 fatty acids from algal biomass are also disclosed herein.
Abstract:
An improved biodiesel production process includes the steps of processing a feedstock to produce biodiesel, cooling the biodiesel so as to form sediment, and filtering the biodiesel to remove the sediment. The resulting biodiesel from the cold filtration process avoids problems of sediment formation during storage and transportation.
Abstract:
A method of refining a natural oil includes: (a) providing a feedstock that includes a natural oil; (b) reacting the feedstock in the presence of a metathesis catalyst to form a metathesized product that includes olefins and esters; (c) passivating residual metathesis catalyst with an agent that comprises nitric acid; (d) separating the olefins in the metathesized product from the esters in the metathesized product; and (e) transesterifying the esters in the presence of an alcohol to form a transesterified product and/or hydrogenating the olefins to form a fully or partially saturated hydrogenated product. Methods for suppressing isomerization of olefin metathesis products produced in a metathesis reaction, and methods of producing fuel compositions are described.
Abstract:
Genetically engineered cells and microorganisms are provided that produce fatty alcohols from the fatty acid biosynthetic pathway, as well as methods of their use.
Abstract:
Disclosed is a method for preparing high purity biodiesel from crude oils. The method comprises the steps of: pre-treating the crude oil raw material to remove impurities; pre-esterifying the pre-treated crude oil raw material under the effect of a catalyst of concentrated sulfuric acid; and then carrying out an ester exchange reaction in the presence of an alkali catalyst; recycling methanol, and separating glycerol, so as to obtain a crude fatty acid methyl ester; and subjecting the obtained fatty acid methyl ester to purification, distillation and segmentation to obtain a high-purity fatty acid methyl ester.
Abstract:
Embodiments of the present application provide methods for processing biodiesel from feedstock using a single-step process. The methods can include, for example, use of a gaseous catalyst as part of the esterification/transesterification process. Embodiments of the present application also provide systems for the methods thereof.
Abstract:
An apparatus is disclosed. The apparatus includes a bubble implosion reactor cavitation device. The bubble implosion reactor cavitation device includes a tube-shaped cylindrical body including an upstream, a distal end surface and a downstream, proximal end surface. The tube-shaped cylindrical body defines an axial passage that extends through the tube-shaped cylindrical body between the upstream, distal end surface and the downstream, proximal end surface. The apparatus also includes a bubble generator subassembly connected to the tube-shaped cylindrical body. The bubble generator subassembly is at least partially disposed within the axial passage defined by the tube-shaped cylindrical body. The apparatus also includes a retaining member connected to the tube-shaped cylindrical body for retaining the bubble generator subassembly within the axial passage defined by the tube-shaped cylindrical body.