Abstract: Improved systems and methods for producing propylene from olefins including isobutylene is disclosed. The improvements combine streams containing co-produced 1-butene, 2-butene, butadiene, and heavy olefins (C5+) exiting both a metathesis reactor and a skeletal isomerization reactor in a gasoline fractionation tower to remove the heavy olefins. The C4-containing distillate from the gasoline fractionation tower is then fed to a hydroisomerization unit to form mono-olefins and 2-butene. The resulting 2-butene rich stream can then be utilized in metathesis reactions to increase the production of propylene while increasing the lifetime of the metathesis catalyst.

Abstract: A process of producing allyl alcohol by reacting glycerin with ReO3—Al2O3 in the presence of gamma-valerolactone (GVL) in a reactor is described. More specifically, a process to produce allyl alcohol, comprising the step of: a) reacting glycerin with ReO3—Al2O3 in the presence of an inert solvent, GVL, in a reactor, and b) collecting the product comprising allyl alcohol.

Abstract: Methods and systems for recovering materials from streams from processes for the co-production of propylene oxide and styrene monomer. The processes may permit the recovery of products, such a mono-propylene glycol, or the recycling of products, such as ?-methyl benzyl alcohol.

Abstract: Methods for preparing molybdenum-based catalyst for epoxidation reactions using MPG sourced from a propylene oxide/styrene monomer (POSM) production process are described. Streams exiting from the POSM reactor are combined and separated to isolate an aqueous-based, MPG-containing purge stream from other recoverable byproducts of the POSM process. This MPG-containing purge stream is then used as is in the catalyst preparation of molybdenum-based catalyst for epoxidation. Alternatively, the MPG-containing purge stream can undergo additional purification treatments before being utilized in the catalyst preparation.

Abstract: Improved systems and methods for producing propylene from olefins including isobutylene is disclosed. The improvements combine streams containing co-produced 1-butene, 2-butene, butadiene, and heavy olefins (C5+) exiting both a metathesis reactor and a skeletal isomerization reactor in a gasoline fractionation tower to remove the heavy olefins. The C4-containing distillate from the gasoline fractionation tower is then fed to a hydroisomerization unit to form mono-olefins and 2-butene. The resulting 2-butene rich stream can then be utilized in metathesis reactions to increase the production of propylene while increasing the lifetime of the metathesis catalyst.

Abstract: A low temperature on-purpose propylene production method is described. The method includes autometathesis of butene streams without an initial ethylene feedstock stream using supported autometathesis catalysts that are active at low temperatures. The low temperature allows for liquid phase reactions, which increases the selective production of propylene. The lack of an initial ethylene feedstock stream and low reaction temperature also reduces coking on the autometathesis catalysts, thus extending its lifetime.

Abstract: Methods of drying streams that include propylene oxide. The methods may include contacting a stream that includes propylene oxide with molecular sieves. The molecular sieves may be in a drying unit, and may be regenerated. The streams that include propylene oxide may include one or more other organic compounds.

Abstract: Methods of preparing titanated silica catalysts and titanated silica catalysts are presented. The titanated silica catalysts may include a silica support, which may include spherical beads. The spherical silica beads may have an average diameter of about 0.1 mm to about 5 mm Methods of olefin epoxidation, which may include contacting an olefin with a titanated silica catalyst in the presence of an oxidant.

Abstract: Methods of preparing titanated silica catalysts, and titanated silica catalysts. The titanated silica catalysts may include a silica support, which may include spherical beads. Methods of olefin epoxidation, which may include contacting an olefin with a titanated silica catalyst in the presence of an oxidant.

Abstract: A method of producing dimethoxymethane oligomers (DMMn), the method comprising: reacting a formaldehyde source and dimethoxymethane monomer (DMM1) in the presence of an acidic catalyst to produce a reaction effluent comprising DMMn and unreacted DMM1; and separating, from the reaction effluent, DMM1-2 including unreacted DMM1 and DMMn having a chain length n equal to 2 (DMM2), dimethoxymethane oligomers having a chain length n in the range of from 2-5 (DMM2-5), dimethoxymethane oligomers having a chain length n of ?5 (DMM5+), or a combination thereof, wherein the separating comprises distillation in the presence of at least one alcohol, a distillate fuel, or both.

Abstract: Provided are methods of treating a mixture, such as a hydrocarbon mixture, that includes one or more C2-C4 carbonyl containing organic compounds. The methods may include contacting a hydrocarbon mixture with an aqueous liquid including an agent. The agent may reduce the amount of one or more C2-C4 carbonyl containing organic compounds in the mixture.

Abstract: Methods of reducing a phosphorus content of a liquid hydrocarbon. The liquid hydrocarbon may be co-fed with an olefin to an alkylation unit to produce a low-phosphorus content liquid hydrocarbon product.

Abstract: A method including hydroformylating, with syngas, allyl alcohol in an allyl alcohol feed, to produce a hydroformylation product comprising 4-hydroxybutyraldehyde and 3-hydroxy-2-methylpropionaldehyde; and producing a 1,4-butanediol (BDO) product comprising BDO and 1,3-methylpropanediol via hydrogenation of at least a portion of the hydroformylation product. A method including hydroformylating, with syngas, allyl alcohol in a feed comprising bio-allyl alcohol, to produce a hydroformylation product comprising 4-hydroxybutyraldehyde and 3-hydroxy-2-methylpropionaldehyde; and producing a BDO product comprising BDO and 1,3-methylpropanediol via hydrogenation of at least a portion of the hydroformylation product.

Abstract: A catalyst system for the conversion of glycerin to allyl alcohol, the catalyst system comprising: a rhenium compound selected from rhenium dioxide, rhenium trioxide, and a combination thereof. A method of producing allyl alcohol from glycerin via the catalyst system, the method comprising exposing glycerin to a temperature of greater than 140° C. in the presence of a catalyst comprising rhenium trioxide, rhenium dioxide, or a combination thereof to produce a product comprising allyl alcohol.

Abstract: A composition comprising a distillate fuel, an oligomer portion comprising at least one dimethoxymethane oligomer, and a stabilizer comprising one or more alcohols. A composition comprising a distillate fuel, and an oligomer portion comprising at least one dimethoxymethane oligomer, DMMn, wherein n is less than 3 and/or greater than 4. A composition comprising a distillate fuel, and less than 10 volume percent of an oligomer portion, wherein the oligomer portion comprises at least one dimethoxymethane oligomer. A method comprising separating, from a mixture of DMMn oligomers, one or more DMMn fractions comprising oligomers of a desired chain length n, and combining a desired amount of one or more of the separated DMMn fractions with a distillate fuel to provide a fuel composition. A composition comprising a distillate fuel that includes renewable distillate fuel, DMMn and/or alcohol.

Abstract: Methods of drying streams that include propylene oxide. The methods may include contacting a stream that includes propylene oxide with molecular sieves. The molecular sieves may be in a drying unit, and may be regenerated. The streams that include propylene oxide may include one or more other organic compounds.

Abstract: Methods and systems for recovering materials from streams from processes for the co-production of propylene oxide and styrene monomer. The processes may permit the recovery of products, such a mono-propylene glycol, or the recycling of products, such as ?-methyl benzyl alcohol.

Abstract: Systems and methods for purifying crude propane streams are provided herein. For example, in some embodiments, methods are provided including passing a crude propane stream to a fixed bed reactor containing a Beta zeolite configured to reduce the propylene oxide content of the crude propane stream and produce a propylene-treated stream and contacting the propylene-treated stream with an acetaldehyde scavenger to produce a treated propane stream. In some embodiments, methods are provided including passing a crude propane stream through a water wash system to provide a treated propane stream having a lower propylene oxide content, a lower acetaldehyde content, or both.

Abstract: Epoxidation methods and catalyst are described herein. The epoxidation catalysts generally include a metal component including silver and a support material including kaolinite, wherein the epoxidation catalyst includes less than 55 wt. % metal component.

Abstract: Methods of improving the selectivity of selective hydrogenation of residual 1,3-butadiene in a C4 fraction of a hydrocarbon raffinate stream in a fixed-bed reactor are described. The methods may include co-feeding a competitive chemical species that increases the mechanistic selectivity to 1- and 2-butenes while increasing isomerization selectivity to 2-butene in the product stream. The hydrogenation reactor and competitive chemical species conditions may be tailored to selectively produce butenes over butane or iso-butane, where the butenes comprise 1-butene and/or 2-butene.