Abstract:
Systems relating to thermal activation (or cracking) of ethane to an intermediate, low purity raw ethylene stream in a first stage. The system then mixes this stream with a stream of raw biomass-derived ethanol that may contain more than four volume percent of water. The resulting mixture is reacted over a suitable catalyst at temperatures and pressures suitable to produce gasoline-range and diesel-range blend stock.
Abstract:
The invention relates to a process for coal conversion, optionally in co-processing with other feedstocks, notably of the biomass type, comprising at least one liquefaction step, followed by a fixed-bed hydrocracking step and a catalytic reforming step. With this process, aromatic compounds can be obtained from a feedstock containing coal.
Abstract:
The present invention relates to a method in the absence of hydrogen for the catalytic cracking of organic compounds using a zeolitic material, modified Y zeolite. In said cracking method, the modified zeolitic material can be the sole zeolitic component or can be combined with at least one second zeolitic component. The catalytic cracking method of the invention comprises at least the following steps: a) introducing at least one first zeolitic material, modified zeolite, into a reactor; b) supplying the reactor with at least one organic compound; c) leaving the modified zeolite and the organic compound in contact with another for the time necessary for the reaction to occur.
Abstract:
Methods are provided for producing a jet fuel composition from a feedstock comprising a natural oil. The methods comprise reacting the feedstock with oxygen under conditions sufficient to form an oxygen-cleaved product. The methods further comprise hydrogenating the oxygen-cleaved product under conditions sufficient to form a jet fuel composition.
Abstract:
The present application generally relates to the introduction of a reduced volatility renewable fuel oil as a feedstock and processing it with a petroleum stream in the presence of a catalyst to reduce the generation of waste streams in refinery systems or field upgrading equipment.
Abstract:
A catalytic conversion process uses a catalytic cracking catalyst having a relatively homogeneous activity containing mainly large pore zeolites in a catalytic conversion reactor. The reaction temperature, residence time of oil vapors and weight ratio of the catalyst/feedstock oil are sufficient to obtain a reaction product containing from about 12 to about 60% by weight of a fluid catalytic cracking gas oil relative to the weight of the feed stock oil and containing a diesel. The reaction temperature ranges from about 420° C. to about 550° C. The residence time of oil vapors ranges from about 0.1 to about 5 seconds. The weight ratio of the catalytic cracking catalyst/feedstock is about 1-about 10.
Abstract:
A gasoline blend and a method for producing a gasoline blend containing low concentrations of a butanol isomer and having good cold start and warm-up driveability characteristics are disclosed.
Abstract:
The present invention provides an unleaded, piston engine fuel formulation comprising a blend of mesitylene, pseudocumene and isopentane having a MON of at least 94 and an RVP of 38 to 49 kPa at 37.8° C. In certain aspects, the formulation comprises specific weight percentages of each of the mesitylene, pseudocumene and isopentane components, and varying MON ratings. In additional aspects, the formulations comprise a combination of mesitylene, isopentane, and one or more additional components selected from the group consisting of pseudocumene, toluene and xylenes. In certain embodiments, the formulations also include alkylates and or alkanes. The formulations have unusually high MON ratings, and desirable RVP and distillation curve characteristics for formulations not including additional components, particularly octane boosters.
Abstract:
The present technology generally relates to a method for producing a naphtha product from a biorenewable feedstock. The method includes hydrotreating the biorenewable feedstock to produce a hydrocarbon product stream, hydrocracking hydrocarbons from the hydrocarbon product stream to produce a distribution of cracked hydrocarbons, and separating a biorenewable naphtha fraction from the distribution of cracked hydrocarbons.
Abstract:
The invention provides methods of cultivating oil-bearing microbes using xylose alone or in combination with other depolymerized cellulosic material. Also provided are microorganisms comprising an exogenous gene encoding a polysaccharide degrading enzyme, such as a cellulase, a hemicellulase, a pectinase, or a driselase. Some methods of microbial fermentation are provided that comprise the use of xylose and depolymerized cellulosic materials for the production of oil-bearing microorgansims.