Abstract: The present disclosure describes a process for the production of alkylaromatics that may be performed using a loop reactor comprising the steps of: introducing an alkylatable aromatic compound; introducing an olefin; introducing a catalyst; adjusting the alkylatable aromatic compound to a pre-reaction temperature that is below a desired reaction temperature; optionally, adjusting the olefin to a second pre-reaction temperature that is below the desired reaction temperature; optionally, adjusting the catalyst to a third pre-reaction temperature that is below the desired reaction temperature; initially contacting the catalyst and olefin under conditions to control the temperature of the reaction of the catalyst and olefin; mixing and/or circulating the alkylatable aromatic compound, the olefin and the catalyst; and maintaining the alkylatable aromatic compound and olefin at the desired reaction temperature.

Abstract: Enhanced oxygen transfer agent systems and methods of use thereof are provided. According to one aspect, a method for producing olefins from a hydrocarbon feed includes the step of contacting a hydrocarbon feed comprised of one or more alkanes with an oxygen transfer agent at a temperature of 350° C. to 1000° C. The oxygen transfer agent includes an oxygen-donating chalcogen agent including at least one of S, Se, or Te and a reducible metal oxide. The chalcogen has an oxidation state greater than +2. A method for producing one or more olefins by partial combustion of a hydrocarbon feed is provided. The method includes partially combusting a hydrocarbon feed comprised of one or more alkanes by contacting the hydrocarbon feed with an oxygen transfer agent comprising CaSO4 at a temperature of 350° C. to 1000° C. to produce one or more olefins comprising ethylene and coproducing water.

Abstract: Methods for the selective hydrogenation of acetylenic compounds in a product stream that includes isoprene. A method of selectively hydrogenating an acetylenic hydrocarbon in the presence of isoprene may include obtaining a hydrocarbon mixture comprising an acetylenic hydrocarbon, isoprene, and butadiene or cyclopentadiene, or both. If cyclopentadiene is present, the hydrocarbon mixture may comprise greater than 2 wt. % cyclopentadiene. The method may further include contacting the hydrocarbon mixture and hydrogen (H2) with a hydrogenation catalyst under reaction conditions that are more selective to the hydrogenation of the acetylenic hydrocarbon than the isoprene.

Abstract: A catalyst and process for the deoxygenation and conversion of bio-derived feedstocks. The catalyst comprises a silica-alumina support having specifically defined physical properties and a molybdenum component but a material absence of nickel. The process involves the processing of a bio-derived feedstock having an oxygen content to yield a conversion product having an exceptional distillation profile and physical properties and a substantially reduced oxygen content.

Abstract: According to one or more embodiments, presently disclosed are processes for producing petrochemical products from a hydrocarbon material. The process may include separating the hydrocarbon material into at least a lesser boiling point fraction and a greater boiling point fraction, combining steam with the greater boiling point fraction upstream of the cracking of the lesser boiling point fraction, cracking at least a portion of the greater boiling point fraction in the presence of a first catalyst to produce a first cracking reaction product, cracking at least a portion of the lesser boiling point fraction in the presence of a second catalyst in an environment comprising less than 0.1 mol. % water to produce a second cracking reaction product, and separating the petrochemical products from one or both of the first cracking reaction product or the second cracking reaction product.

Abstract: A process comprising separating from a biomass catalytic pyrolysis process effluent, a naphthalene-rich oil phase, a phenolic oil and a vapor phase containing off gas, water and BTX, whereby said vapor phase can be condensed to separate liquid water and liquid hydrocarbons from gaseous off gas and BTX.

Abstract: The present disclosure relates to a method that includes a first treating of a first mixture that includes a carboxylic acid having between 2 and 12 carbon atoms, inclusively, to form a second mixture that includes a ketone having between 2 and 25 carbon atoms, inclusively, and a second treating of at least a first portion of the second mixture to form a first product that includes a paraffin having 8 or more carbon atoms.

Abstract: A process for obtaining carbon dioxide from furnace combustion fumes is provided. The process comprises removing water vapour occurring in combustion fumes through successive gas compression and expansion steps; separating carbon dioxide from oxygen and nitrogen through the use of a filter comprising a gas-separating material, including fullerenes and zeolites, to obtain substantially pure gaseous carbon dioxide; subsequently optionally producing dry ice through further steps of compression and expansion of the substantially pure gaseous carbon dioxide obtained in the preceding steps.

Abstract: Processes and associated reaction systems for the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms, preferably ethane or propane, more preferably ethane, are provided. In particular, a process is provided that comprises supplying a feed gas comprising the alkane and oxygen to a reactor vessel that comprises an upstream and downstream catalyst bed; contacting the feed gas with an oxidative dehydrogenation catalyst in the upstream catalyst bed, followed by contact with an oxidative dehydrogenation/oxygen removal catalyst in the downstream catalyst bed, to yield a reactor effluent comprising the alkene; and supplying an upstream coolant to an upstream shell space of the reactor vessel from an upstream coolant circuit and a downstream coolant to a downstream shell space of the reactor vessel from a downstream coolant circuit.

Abstract: Systems and methods of removing coke/tar from water in a quench water recycling loop of a steam cracker quench system are disclosed. The systems include a quench water separator that has a feed calming compartment for reducing eddies in feed to the quench water separator. The feed calming compartment is defined, at least in part, by a perforated baffle in the quench water separator. The methods include the use of the quench water separator with the perforated baffle and the calming compartment to separate coke/tar from quench water in the quench water recycling loop.

Abstract: A process for producing one or more of benzene, toluene, or mixed xylenes may include combining one or more aromatic feed chemicals, one or more aromatic-based polymers, hydrodearylation catalyst, and hydrogen in a hydrodearylation unit to form a chemical product. The process may also include passing the chemical product out of the hydrodearylation unit, where the chemical product comprises one or more of benzene, toluene, and mixed xylenes. Additionally, a system for producing one or more of benzene, toluene, or mixed xylenes may include a mixing unit and a hydrodearylation unit. An aromatic feed stream and an aromatic-based polymer stream may be in fluid communication with a mixing unit. A mixing unit effluent stream may be in fluid communication between the mixing unit and the hydrodearylation unit. A chemical product stream may be in fluid communication with the hydrodearylation unit.

Abstract: A process for producing olefins from the hydrocarbon feed includes introducing the hydrocarbon feed into a Solvent Deasphalting Unit (SDA) to remove asphaltene from the hydrocarbon feed producing a deasphalted oil stream, wherein the SDA comprises a solvent that reacts with the hydrocarbon feed, and the deasphalted oil stream comprises from 0.01 weight percent (wt. %) to 18 wt. % asphaltenes; introducing the deasphalted oil stream into a steam catalytic cracking system; steam catalytically cracking the deasphalted oil stream in the steam catalytic cracking system in the presence of steam and a nano zeolite cracking catalyst to produce a steam catalytic cracking effluent; and separating the olefins from the steam catalytic cracking effluent.

Abstract: The present invention relates to a method for oligomerizing olefins including the steps of: carrying out an oligomerization reaction of olefins by injecting an oligomerization transition metal catalyst, a cocatalyst, an olefin monomer and a solvent into a reactor; and injecting, into the reaction product of the oligomerization reaction, a catalyst inactivator including a gaseous inorganic material that contains oxygen.

Abstract: A catalyst for synthesizing a conjugated diene from a raw material including an alcohol, which includes at least Ce and Zn as metal elements constituting the catalyst. An apparatus for producing a conjugated diene, including: a reaction tube (1) provided with the catalyst; a supply means for supplying a raw material gas containing the raw material into the reaction tube (1); and an outlet means for releasing a product from the reaction tube (1). A method for producing a conjugated diene, including contacting a raw material gas containing a raw material with the catalyst to obtain a conjugated diene. The amount of the raw material is preferably 10 to 50% by volume (in terms of gas volume) with respect to 100% by volume (in terms of gas volume) of the raw material gas.

Abstract: Systems and methods are provided for conversion of oxygenate feeds to lubricant and/or distillate boiling range compounds with desirable properties by first selectively converting oxygenates to light olefins and then converting the light olefins to distillate and lubricant boiling range compounds with beneficial properties. The distillate boiling range products can have an unexpectedly high cetane, while the lubricant boiling range products can have an unexpectedly high viscosity index. The ability to form the distillate boiling range products and lubricant boiling range products is facilitated by using a Ni-enhanced oligomerization catalyst.

Abstract: According to one or more embodiments disclosed herein, methods for operating dehydrogenation processes during non-normal operating conditions, such as at start-up, shut-down, system recycle, or unit trip, are described. The methods may include contacting a feed stream with a catalyst in a reactor portion of a reactor system to form a reactor effluent stream, separating at least a portion of the reactor effluent stream from the catalyst, passing the catalyst to a catalyst processing portion and processing the catalyst, wherein processing the catalyst comprises contacting the catalyst with oxygen, passing the catalyst from the processing portion to the reactor portion, wherein the catalyst exiting the processing portion comprises at least 0.001 wt. % oxygen, and contacting the catalyst with supplemental hydrogen, the contacting removing at least a portion of the oxygen from the catalyst by a combustion reaction.

Abstract: Processes for producing olefins include introducing a hydrocarbon feed to a high-severity fluidized catalytic cracking system, contacting the hydrocarbon feed with a cracking catalyst under high-severity conditions in the high-severity fluidized catalytic cracking system to produce a cracking reaction effluent comprising butene, and passing at least a portion of the cracking reaction effluent, which includes at least butene, to a metathesis system. The processes further include contacting the portion of the cracking reaction effluent with a metathesis catalyst in the metathesis system, which causes at least a portion of the butene in the cracking C4 effluent to undergo a metathesis reaction to produce a metathesis reaction effluent comprising at least one of ethylene, propene, or both. The processes may further include separating a metathesis C5+ effluent from the metathesis reaction effluent and passing the metathesis C5+ effluent back to the high-severity fluidized catalytic cracking unit.

Abstract: Processes and systems for upgrading natural gas liquids. At least a portion of the natural gas liquid components in a shale gas stream can be dehydrogenated to their corresponding olefin derivatives prior to separating any methane from the liquids. Further processing subsequent to dehydrogenation could include various separations, oligomerizing olefins produced in the dehydrogenation step, recovering desired products, etc. The order of the processing steps subsequent to dehydrogenation could be adjusted in various cases.

Abstract: Processes for making bicyclic compounds and precursors thereof, and particularly for making [1.1.1]propellane and bicyclo[1.1.1]pentane and derivatives thereof, utilize continuous flow reaction methods and conditions. A continuous process for making [1.1.1]propellane can be conducted under reaction conditions that advantageously minimize clogging of a continuous flow reactor. A continuous flow process can be used to make precursors of [1.1.1]propellane.

Abstract: Methods for the production of para-xylene include flowing a xylenes-containing stream comprising PX, meta-xylene (MX), and ortho-xylene (OX), to a first crystallization stage. In addition, the methods include lowering a temperature of the xylenes-containing stream to below the eutectic point of the xylenes-containing stream within the first crystallization stage to crystallize at least some of the PX and at least some of one of both of the MX and the OX within the xylenes-containing stream. Further, the methods include separating the xylenes-containing stream into a first crystallization effluent stream and a first filtrate stream.