13 results about "Hydrocarbon mixtures" patented technology

Described herein are embodiments where crude oil and cooking oil may be co-processed in a method that includes catalytically cracking a hydrocarbon mixture to form hydrocarbon product. The hydrocarbon mixture may include from 1 wt. % to 20 wt. % of cooking oil and from 80 wt. % to 99 wt. % of crude oil having an API gravity of from 30° to 38°. The hydrocarbon product may include ethylene, propylene, and butenes.

The present invention relates to a screening assembly comprising a separation device connected to a conduit for an effluent stream comprising a mixture of polymers and hydrocarbons, wherein the separation device is configured to separate the effluent stream into a polymer-rich stream and a polymer-lean vapor stream, wherein the first separation device comprises: an inlet; a first outlet for extracting the polymer-rich stream and a second outlet for extracting the polymer-lean vapor stream; a screening device connected to the separation device via a conduit for the polymer-lean vapor stream, wherein the screening device comprises a first inlet connected to the conduit for the polymer-lean vapor stream, a first outlet for extracting a clean vapor stream, a second outlet for extracting a polymer-containing condensate vapor stream, and at least one second inlet for introducing the condensate vapor stream.

Processes and systems for producing olefins, such as ethylene, includes feeding a steam-alcohol mixture to a dehydration reactor and dehydrating the alcohol to form a reaction effluent comprising an olefin and water. The process includes quenching and separating the reaction effluent to recover a quenched effluent and a gaseous hydrocarbon comprising the olefin, The quenched effluent is separated to form a volatile organic stream and an aqueous organic effluent. Solids, hydrocarbons, or both, may be removed from the quenched effluent, the aqueous organic effluent, or both. The process further includes one or both of: feeding a portion of the aqueous organic effluent as the quench medium, or, vaporizing a portion of the aqueous organic effluent, including water and hydrocarbonaceous compounds, to form a mixed dilution steam stream and a residue liquid, and diluting a vaporized oxygenated hydrocarbon feedstock with the mixed dilution steam stream to form the steam-oxygenated hydrocarbon mixture.

This invention provides syndiotactic polystyrene, its preparation method, resin composition, articles, and applications. The preparation method of the syndiotactic polystyrene includes: subjecting styrene monomer to an addition polymerization reaction in the presence of a catalyst and a mixture of saturated hydrocarbons to obtain the syndiotactic polystyrene; the mass percentage of the saturated hydrocarbon mixture in the syndiotactic polystyrene is 0.5% to 5%. The syndiotactic polystyrene obtained by the preparation method of this invention exhibits excellent color uniformity, providing a more uniform dispersion matrix for the introduction of antioxidants and other additives in subsequent processing, improving the dispersion uniformity of additives, and without affecting the mechanical properties of the syndiotactic polystyrene, and without causing an increase in mold fouling during processing.

The application provides a device for preparing green aviation fuel by Fischer-Tropsch synthesis, and relates to the technical field of green aviation fuel preparation.In the device, a gasification reactor is used to gasify provided biomass to generate crude coal gas; a partial oxidation reactor is used to synthesize the crude coal gas and low-carbon hydrocarbons into first synthesis gas; a medium-temperature shift system is used to perform medium-temperature shift on the first synthesis gas to first adjust the hydrogen-carbon ratio in the first synthesis gas; a mixer is used to mix the first synthesis gas after the medium-temperature shift and supplemented hydrogen to second adjust the hydrogen-carbon ratio of the first synthesis gas, so as to obtain second synthesis gas; a synthesis adjustment system is used to adjust the second synthesis gas; a Fischer-Tropsch synthesis reactor is used to perform Fischer-Tropsch synthesis reaction on the adjusted second synthesis gas, so as to obtain a hydrocarbon mixture; a distillation system is used to perform distillation separation on the hydrocarbon mixture, so as to generate low-carbon hydrocarbons and heavy components; and a hydrogenation isomerization and cracking system is used to sequentially perform hydrogenation isomerization and cracking treatment on the heavy components generated by the distillation system, so as to obtain green aviation fuel.

A system can include a vessel having a plurality of sonication devices for separating a base hydrocarbon mixture that is disposed in the vessel. The sonication devices can be mounted on opposing walls of the vessel. A mixer can establish a flow of the vessel mixture within the vessel that increases exposure of the mixture to ultrasonic waves emitted by the sonication devices and carried in the water matrix. The flow of the vessel mixture within the vessel also facilitates removal of oil from the vessel mixture.

The application provides a device for preparing green aviation coal by circulating fluidized bed gasification-Fischer-Tropsch synthesis, and relates to the technical field of green aviation coal preparation. In the device, a circulating fluidized bed reactor gasifies provided biomass to generate first synthesis gas; a cyclone separator separates solid particles carried in the first synthesis gas, sends the solid particles back to the circulating fluidized bed reactor, and sends the first synthesis gas after separation of the solid particles into a medium-temperature shift system; the medium-temperature shift system shifts the first synthesis gas at a medium temperature to adjust the hydrogen-carbon ratio of the first synthesis gas for the first time; a mixer mixes the first synthesis gas after the medium-temperature shift with hydrogen to adjust the hydrogen-carbon ratio of the first synthesis gas for the second time, and obtains second synthesis gas; a synthesis adjustment system adjusts the second synthesis gas; a Fischer-Tropsch synthesis reactor performs Fischer-Tropsch synthesis reaction on the second synthesis gas to obtain a hydrocarbon mixture; a fractionation system fractionates the hydrocarbon mixture to obtain heavy components; and a hydrogenation isomerization cracking system performs hydrogenation isomerization cracking treatment on the heavy components to obtain green aviation coal.

Systems and processes for processing a C3 and C4 hydrocarbon mixture are disclosed. The C3 and C4 hydrocarbon mixture is separated to remove propane from the C4 hydrocarbons. The resulting C4 hydrocarbons are then processed in an isomerization unit to produce additional isobutane. The isobutane of the isomerization unit effluent is dehydrogenated in a dehydrogenation unit to produce isobutylene. The resulting isobutylene is reacted with an alkanol to produce an alkyl tertiary butyl ether.

The present disclosure relates to a composite solvent for aromatic extraction, containing 20-95 wt% of a main solvent containing ethylene carbonate and a balance of a co-solvent containing an ester compound and / or a ketone compound, and a method for extracting aromatics from a hydrocarbon mixture. The composite solvent of the present disclosure has excellent separation performance when used for separating aromatics from a hydrocarbon mixture, and has high solubility and selectivity for aromatics.

The application discloses a method and device for synthesizing sustainable aviation fuel by solar-driven biomass gasification, which comprises the following steps: heating a heat storage medium by a solar heat collection system to provide heat energy for a gasification reaction and steam generation; feeding biomass raw materials and steam into a gasification furnace to generate a gasification reaction to obtain crude synthesis gas; recovering high-temperature sensible heat of the crude synthesis gas to generate steam and generate electricity, and using the electricity to electrolyze water to prepare first hydrogen; purifying and separating and purifying the crude synthesis gas after heat exchange and temperature reduction to obtain refined synthesis gas, and separating solid carbonaceous residues and methane to be fed into a combustor to be combusted, and heat generated by the combustion is delivered to the gasification furnace; mixing the refined synthesis gas with the first hydrogen and feeding the mixture into a first-stage Fischer-Tropsch synthesis reactor to generate a hydrocarbon mixture by Fischer-Tropsch synthesis reaction under the action of a catalyst; feeding the hydrocarbon mixture and the first hydrogen into a second-stage Fischer-Tropsch synthesis reactor to generate a second-stage Fischer-Tropsch synthesis reaction, and then obtaining sustainable aviation fuel by rectification separation.

The utility model relates to filter equipment technical field discloses a coalescence dehydrator, including the filter core and the baffle in the barrel, the baffle includes the upper baffle and lower baffle and is located the upper portion and lower portion in the barrel respectively, and the coalescence cavity between baffle, and the oil outlet chamber between lower baffle and barrel bottom, the filter core includes coalescence filter core and separation filter core, and coalescence filter core top is connected with the barrel through sealing structure, and separation filter core bottom is connected with the barrel bottom through oil outlet pipeline. Through the import sealing end and coalescence filter core joint, when water hydrocarbon mixture enters the upper baffle upper portion in the barrel from the feed pipe, sealing structure can effectively prevent water hydrocarbon mixture from entering the coalescence cavity, can only enter from the import end of coalescence filter core, carries out sufficient filtration to water hydrocarbon mixture, effectively improves water and hydrocarbon separation effect of water hydrocarbon mixture, separates water and hydrocarbon, separates thoroughly, and discharges respectively, removes water in water hydrocarbon mixture, and is convenient for the use of hydrocarbon in the subsequent process.