87 results about "Hydrocarbon mixtures" patented technology

An electrical heater system includes a heater block, a plurality of heating element holes transversing the heater block, a plurality of radiant coil holes transversing the heater block, a plurality of electrical heating elements disposed within the plurality of heating element holes, and a plurality of radiant coils disposed within the plurality of radiant coil holes. A process for olefin production includes heating a plurality of radiant coils using an electrical heater, feeding a hydrocarbon mixture into a plurality of inlet tubes, controlling a temperature of a plurality of electrical heating elements to heat a heater block to a desired temperature, cracking the hydrocarbon mixture in the plurality of radiant coils to produce a cracked effluent, collecting the cracked effluent through a plurality of outlet tubes, and cooling the cracked effluent using a heat exchanger.

The invention relates to a process for obtaining isobutene from an isobutene containing C4-hydrocarbon mixture (1) in a plant comprising an etherification unit (3), a first distillation unit (5), an ether cleavage unit (10) and a second distillation unit (12), the process comprising: (a) contacting the C4-hydrocarbon mixture (1) with a primary alcohol (2) and reacting the mixture with the primary alcohol in the presence of an acidic catalyst to form the corresponding alkyl tert-butyl ether in the etherification unit (3); (b) distilling the reaction mixture (4) from the etherification unit (3) in the first distillation unit (5), a C4-hydrocarbon raffinate being withdrawn as the overhead product (6), and the alkyl tert-butyl ether being withdrawn as the bottom product (7); (c) vaporizing the bottom product from the first distillation unit (5) in an evaporator (8) obtaining a vapor stream (9); (d) reacting the vapor stream (9) of step (c) in the presence of an acidic catalyst obtaining isobutene and the primary alcohol as reaction products in the ether cleavage unit (10); (e) distilling the reaction mixture (11) from the ether cleavage unit (10) in the second distillation unit (12), isobutene being withdrawn as the overhead product (13), the primary alcohol and diisobutene being withdrawn as the bottom product (14) and being recycled to the etherification unit (3); wherein a purge stream (15) containing high boiling components with a normal boiling point higher than that of the alkyl tert-butyl ether is withdrawn from the evaporator (8) in step (c).

The invention relates to the use of a composition (C) comprising, for 100% of the weight thereof,—from 10% by weight to 90% by weight of at least one poly(farnesene) polymer having a number-average molecular weight of greater than or equal to 10,000 g / mol and less than or equal to 120,000 g / mol, said poly(farnesene) polymer being partially or totally hydrogenated and / or functionalized with hydroxyl radicals, and—from 10% by weight to 90% by weight of a mixture (M) of hydrocarbons in which at last 94% by weight of said hydrocarbons comprise from 15 to 19 carbon atoms, for preventing and / or slowing the appearance of unattractive effects on human hair following exposure to intense heat. The invention also relates to a method for drying and shaping the hair, using said composition.

Systems and methods for processing a C3 and C4 hydrocarbon mixture have been disclosed. The C3 and C4 hydrocarbon mixture is first processed in an isomerization unit to isomerize n-butane to form isobutane. The resulting effluent stream from the isomerization unit comprising primarily isobutane and C3 hydrocarbons, collectively, is flowed into a separation unit configured to separate the effluent stream to form a C3 stream comprising C1 to C3 hydrocarbons and a C4 stream comprising primarily isobutane. The isobutane in the C4 stream is further dehydrogenated to form isobutene, which is further flowed into an MTBE synthesis unit as a feedstock for producing MTBE.

Embodiments of the present disclosure relate to a composition comprising a hydrocarbon mixture having a paraffin wax and at least one reactive moiety, and an ethylene acrylate terpolymer having a moiety that reacts with the at least one reactive moiety in the hydrocarbon mixture. For this embodiment, the ethylene acrylate terpolymer is formed from (A) a first monomer of ethylene, (B) a second monomer selected from the group consisting of vinyl acetate, alkyl acrylates, alkyl (meth) acrylates, and combinations thereof, and (C) a third monomer having the portion that reacts with at least one reactive portion of the hydrocarbon mixture, the third monomer selected from the group consisting of maleic anhydride, maleic diester, glycidyl acrylate, glycidyl methacrylate, glycidyl vinyl ether, and combinations thereof.

A method of producing useful fuel fluids from solid plastic waste, including loading solid plastic waste matter into a reaction chamber to define a load, subjecting the load to HTP to extract hydrocarbon mixtures, filtering the hydrocarbon mixtures to extract solid matter, and separating the hydrocarbon mixtures into a light fraction (C1 to C25) and a heavy fraction (C26 to C31). The heavy fraction is directed to a first container and the light fraction is directed to a second container. The light fraction is separated into diesel (C8-C25), gasoline (C4-C12), and vapor (C1-C5), and the diesel is directed to a third container, the gasoline is directed to a fourth container, and the vapor is directed to a fifth container. The hydrocarbon mixtures have a carbon number distribution between C1 and C31. The pressure in the reaction chamber is typically between 0.1 and 10 MPa and the temperature in the reaction chamber is between 350 and 500 degrees Celsius. The plastic waste is selected from the group consisting of PS, PE, PP, and mixtures thereof.

Process and plant for the production of ammonia and urea which use as feedstock a gaseous mixture deriving from various industrial processes, in particular metallurgical iron ore reduction processes. The process produces a loop that uses the short contact time catalytic partial oxidation (SCT-CPO) reaction to convert purge gases of the ammonia synthesis to synthesis gas which is combined with the feedstock to be treated. The oxygen for the partial oxidation reaction is obtained by electrolysis of water or through air separation. The CO2 contained in the feedstock and / or emitted in the process steps is used for the production of urea.

A method for processing a hydrocarbon-containing mixture includes the steps of: I) separating the hydrocarbon-containing mixture into a light fraction and a heavy fraction; II) reacting the light fraction from step I) in an aromatization unit and separating the resulting reaction product into a C5− component and a C6+ component; III) reacting the heavy fraction from step I) and optionally the C6+ component from step II) in an aromatics conversion unit and separating the resulting reaction product into a C5− component, a C6-C7 component, a C8 component, and a C9+ component; and IV) optionally, steam cracking or catalytic cracking one or both of the C5− component from step II) and the C5− component from step III). The method can convert low-value hydrocarbon mixtures into C8 aromatic hydrocarbons and cracking raw materials, and improve the product value. A system for practicing this method is also provided.

This document discloses a system and method for separating cracked hydrocarbon mixtures. A main fractionation column separates the cracked hydrocarbon mixture into top, side, and bottom fractions containing C1 to C6+ hydrocarbons. A top condenser and high-pressure separation system partially condenses the top fraction and compresses the uncondensed vapor to produce a compressed gas fraction and a compressed liquid fraction. A first distillation column receives the compressed liquid fraction and separates it into a first top vapor and a first bottom fraction. A second distillation column separates the first bottom fraction into a second top fraction and a second bottom fraction. An absorber receives a portion of the second bottom fraction and the side liquid fraction and contacts it in countercurrent flow with the compressed gas fraction, thereby producing an absorber top fraction and absorber bottom fraction containing exhaust gas. Such a system can be used to integrate existing FCC / RFCC units with petrochemical complexes.

The present invention concerns a pyrolysis product composition comprising a bituminous hydrocarbon fraction and char particles dispersed within said bituminous hydrocarbon fraction, wherein the bituminous hydrocarbon fraction and the char particles together constitute at least 70 wt% of the pyrolysis product composition, wherein the bituminous hydrocarbon fraction and the char particles are present in a weight ratio of between 1 : 1 and 9 : 1, and wherein said composition is a liquid at a temperature between 120 and 230 °C and is a solid at temperatures up to 35 °C. The present invention further concerns a process for the production of said pyrolysis product composition in the form of a solid and to a pyrolysis system configured to convert a mixture of char particles and hydrocarbons resulting from pyrolysis of plastic waste material into a product in the form of solid particles.

The invention relates to a process for obtaining isobutene from an isobutene containing C4-hydrocarbon mixture (1) in a plant comprising an etherification unit (3), a first distillation unit (5), an ether cleavage unit (8) and a second distillation unit (10), the process comprising: (a) contacting the C4-hydrocarbon mixture (1) with a primary alcohol (2) and reacting the mixture with the primary alcohol in the presence of an acidic catalyst to form the corresponding alkyl tert-butyl ether as an intermediate product and diisobutene as a by-product in the etherification unit (3); (b) distilling the reaction mixture (4) from the etherification unit (3) in the first distillation unit (5), a C4-hydrocarbon raffinate being withdrawn as the overhead product (6), the alkyl tert-butyl ether and diisobutene being withdrawn as the liquid or vaporous bottom product (7), and vaporizing the bottom product (7) if it is withdrawn as a liquid; (c) reacting the vaporous bottom product (7) in the presence of an acidic catalyst obtaining isobutene and the primary alcohol as reaction products in the ether cleavage unit (8); (d) distilling the reaction mixture (9) from the ether cleavage unit (8) in the second distillation unit (10), isobutene being withdrawn as the overhead product (11), the primary alcohol and diisobutene being withdrawn as the bottom product (12) and being recycled to the etherification unit (3); the plant further comprising a byproduct separation unit (15) being fed by a bottom purge stream (13) of the first distillation unit (5) and / or by a part of the bottom product of the second distillation unit (10), this feed stream (14) being split up in at least three byproduct streams wherein a first byproduct stream (16) is rich in diisobutene, a second byproduct stream (17) is rich in the primary alcohol, and a third byproduct stream (18) is rich in components with a normal boiling point higher than 110° C.

A process for enhanced hydrocarbon recovery comprising the following steps: a) Preparation of an injection fluid comprising at least one water-soluble polymer obtained from 2-acrylamido-2-methylpropane sulfonic acid, with water or with brine, the 2-acrylamido-2-methylpropane sulfonic acid being, before polymerization, a crystalline form of the sodium salt of 2-acrylamido-2-methylpropane sulfonic acid having a powder X-ray diffraction pattern comprising peaks at 11.7°; 12.2°; 13.2°; 13.5°; 15.6°; 16.8°; 17.8°; 18.5°; 19.1°; 20.6°; 21.4°; 23.3°; 25.1°; 25.8°; 26.9°; 29.1°; 29.5°; 31.0°; 33.0°; 33.6°; 34.4°; 35.2°; 35.9°; 37.1°; 38.4°; 39.6°; 41.1°; 42.9°; 45.1°; 46.0°; 47.2°; 47.6° degrees 2-theta; b) Injection of the injection fluid into a subsurface formation; c) Sweeping of the subsurface formation using the injected fluid; d) Recovery of an aqueous and hydrocarbon mixture.

The invention relates to a process for producing a jet fuel from a mixture to be treated, comprising, in particular, a mixture of phenolic compounds, preferably a lignin oil, the process comprising a step of hydrotreating the mixture to be treated, wherein the mixture to be treated has specific properties. The present invention also relates to a mixture of hydrocarbons and to a jet fuel obtained using this process.

Embodiments of the present invention relates to two improved catalysts and associated processes that directly converts carbon dioxide and hydrogen to liquid fuels. The catalytic converter is comprised of two catalysts in series that are operated at the same pressures to directly produce synthetic liquid fuels or synthetic natural gas. The carbon conversion efficiency for CO2 to liquid fuels is greater than 45%. The fuel is distilled into a premium diesel fuels (approximately 70 volume %) and naphtha (approximately 30 volume %) which are used directly as “drop-in” fuels without requiring any further processing. Any light hydrocarbons that are present with the carbon dioxide are also converted directly to fuels. This process is directly, applicable to the conversion of CO2 collected from ethanol plants, cement plants, power plants, biogas, carbon dioxide / hydrocarbon mixtures from secondary oil recovery, and other carbon dioxide / hydrocarbon streams. The catalyst system is durable, efficient and maintains a relatively constant level of fuel productivity over long periods of time without requiring re-activation or replacement.

A method for stabilizing whole crudes and condensate hydrocarbon mixtures. The method includes feeding a hydrocarbon mixture to a stabilizer column and separating the hydrocarbon mixture into an overhead offgas effluent and a stabilized hydrocarbon mixture; reboiling a stream from the stabilizer column with a heating medium, producing a reboiled stream; feeding the reboiled stream into the stabilizer column; heating a first side-stream from the stabilizer column with a stabilized hydrocarbon mixture from the stabilizer column, producing a heated first side-stream from the stabilizer column; and feeding the heated first side-stream into the stabilizer column.

A process including heating a hydrogen manufacturing unit feedstock producing a heated hydrogen manufacturing unit feedstock. The process includes stripping a wide boiling range hydrocarbon mixture with heated hydrogen manufacturing unit feedstock producing an overheads stream, separating the overheads stream to recover a non-condensed stream, and feeding the non-condensed stream to a hydrogen manufacturing unit. A process including feeding a hydrocarbon manufacturing unit feedstock to a stripping unit, recovering an overhead stream, feeding the overhead stream to a separation unit separating the hydrogen manufacturing unit feedstock from light boiling hydrocarbons, feeding a portion of the separated hydrogen manufacturing unit feedstock stream to a hydrogen manufacturing unit producing a hydrogen stream, feeding a first portion of the hydrogen stream and the bottoms stream to a first hydroprocessing unit, and feeding a second portion of the hydrogen stream, the first effluent, and the recovered medium boiling hydrocarbons to a second hydroprocessing unit.

A method for catalytic cracking of PVC waste using a zeolite catalyst to obtain a hydrocarbon mixture of gas components that are useful resources. The catalytic cracking method has high selectivity of useful components and can lower the content of chlorine, a harmful component.

The invention belongs to the technical field of oil field water treatment, and particularly relates to a treatment system and method for gas field produced water containing liquid hydrocarbon. The treatment system comprises a separation device, a settling tank and a scaling device which are communicated in sequence. The treatment method comprises the following steps: 1) separating the liquid hydrocarbon-containing gas field produced water in a separation device to obtain a water-hydrocarbon mixed solution; 2) mixing the water-hydrocarbon mixture and crude oil according to a volume ratio of (3-1): 1, conveying the mixture to a settling tank, separating a crude oil liquid hydrocarbon mixture and settling water through gravity settling, and externally conveying the crude oil liquid hydrocarbon mixture through a pipeline; 3, the settling water is conveyed into a scaling device, an iron removal agent, a calcium and magnesium removal agent and a demulsifying agent are sequentially added, then precipitation reaction is carried out, and reinjection water is obtained on the upper layer. Liquid hydrocarbon can be recycled, meanwhile, the hydrocarbon content in water is reduced, the settling water is treated through a treating agent, and the requirement of oilfield reinjection water is met.

The invention belongs to the field of aromatic hydrocarbon extraction, and relates to a device and a method for separating aromatic hydrocarbon and non-aromatic hydrocarbon through pressure swing extractive distillation. The device comprises a hydrocarbon mixture feeding pipeline, a high-pressure extractive distillation tower, a non-aromatic solvent recovery tower, an aromatic solvent recovery tower and a heat exchanger, the hydrocarbon mixture feeding pipeline is sequentially connected with the heat exchanger and the middle part of the high-pressure extractive distillation tower; the high-pressure extractive distillation tower is provided with a raffinate discharging pipeline and an extract discharging pipeline; the raffinate discharge pipeline is connected with the non-aromatic solvent recovery tower, the non-aromatic solvent recovery tower is provided with a recovered solvent discharge pipeline and a non-aromatic discharge pipeline, and the recovered solvent discharge pipeline is connected with the high-pressure extractive distillation tower; the extract discharge pipeline is connected with an aromatic solvent recovery tower, the aromatic solvent recovery tower is provided with a lean solvent discharge pipeline and an aromatic discharge pipeline, and the lean solvent discharge pipeline is connected with a top tray of the high-pressure extractive distillation tower. A pressure reduction facility is arranged on a raffinate discharging pipeline of the high-pressure extractive distillation tower, and a gas phase enters the non-aromatic solvent recovery tower after being subjected to pressure reduction, so that variable-pressure operation of the front tower and the rear tower is realized. According to the invention, low-solvent-ratio extraction can be realized, and the heat exchange area of lean solvent heat extraction equipment can be reduced.

Zeolitic adsorbent for the separation of hydrocarbon isomers. The present invention relates to an agglomerated zeolitic adsorbent based on faujasite-type zeolite crystals (FAU), a zeolitic adsorbent comprising barium or barium and potassium, said adsorbent having a pore distribution satisfying the following inequalities: 1) [Math 30] 2) [Math 31] in which VmaHg denotes the macroporous volume of the adsorbent measured by mercury intrusion porosimetry, VmeN2 denotes the mesoporous volume of the adsorbent measured by nitrogen adsorption, V2-3.6 corresponds to the mesoporous volume for pore sizes ranging from 2 nm to 3.6 nm, V3.6-15 corresponds to the mesoporous volume for pore sizes ranging from 3.6 nm to 15 nm, V2-3.6 is equal to [Math 32] V2-3.6 = VmeN2 - VmeHg where VmeHg denotes the mesoporous volume of the adsorbent measured by mercury intrusion porosimetry V3,6-15 is determined by the difference between the volume of mercury introduced at 15 nm and that introduced at 3.6 nm, the volumes being expressed in cm³.g⁻¹, and its preparation process. The invention also relates to the use of the zeolitic adsorbent agglomerate for the separation of hydrocarbon mixtures, as well as the process for separating hydrocarbon mixtures using said zeolitic adsorbent agglomerate.

A process for increasing hydrocarbon recovery comprising the steps of: a) preparing an injection fluid comprising at least one water-soluble polymer obtained from ATBS with water or brine; the ATBS, prior to polymerization, is a sodium salt of ATBS in crystalline form having an X-ray powder diffraction pattern comprising peaks at the following positions: 11.7 DEG; 12.2 DEG C; 13.2 DEG C; 13.5 DEG C; 15.6 DEG C; 16.8 DEG C; the temperature is 17.8 DEG C; 18.5 DEG C, 18.5 DEG C; 19.1 DEG C; 20.6 DEG C; 21.4 DEG C; 23.3 DEG C; 25.1 DEG C, 25.1 DEG C; 25.8 degrees; 26.9 DEG C; 29.1 DEG C; 29.5 DEG C; 31.0 DEG C; 33.0 DEG C; 33.6 DEG C; 34.4 degrees; 35.2 DEG C; 35.9 DEG C; 37.1 DEG C; 38.4 DEG C; 39.6 DEG C; 41.1 DEG C, 41.1 DEG C; 42.9 DEG C; 45.1 DEG C; 46.0 DEG C; 47.2 DEG C; the angle is 47.6 degrees and 2theta; b) injecting an injection fluid into the subterranean formation; c) sweating the subterranean formation using the injected fluid; d) recovering the aqueous hydrocarbon mixture.

The present application relates to a kind of aluminum-based metal-organic framework material, preparation method, adsorption separation device and the method for separating hydrocarbon mixture.The chemical formula of the aluminum-based metal-organic framework material is C 54 H 33 Al3O 21 It is a kind of super-microporous metal-organic framework material, belongs to tetragonal system.This material shows significant advantages in the selective separation and purification of C6 isomers, and is the first metal-organic framework material that can separate single-branched and double-branched C6 at normal temperature and pressure with high efficiency so far.

A process for producing a hydrocarbon mixture from a carbonaceous feedstock, the process comprising the steps of: a) providing a gas stream comprising a mixture of hydrogen, oxygen and steam to the bottom of a fluidized bed reactor through at least one gas inlet; b) allowing at least part of the oxygen and hydrogen contained in the gas stream to react at the bottom of the fluidized bed reactor to produce a superheated steam stream; c) contacting the superheated steam stream with a solid bed material to transfer heat from the superheated steam stream to the bed material to obtain a steam-containing gas stream and a heated bed material; d) feeding a carbonaceous feedstock to the fluidized bed reactor; e) contacting the carbonaceous feedstock with the vapor-containing gas stream, thereby forming a mixture of gaseous hydrocarbons and a mixture of condensed hydrocarbons; f1) discharging a gaseous product mixture comprising the gaseous hydrocarbon mixture from the fluidized bed reactor; and an integrated reactor system for gasifying a carbonaceous feedstock, comprising an electrolytic cell and at least one fluidized bed reactor wherein the electrolytic cell comprises at least one first gas outlet and the first gas outlet of the electrolytic cell is in fluid connection with at least one gas inlet of the at least one fluidized bed reactor.

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 invention relates to a process for purifying a raw C4-hydrocarbon mixture comprising at least 2% by weight of isobutene, at least 23% by weight of butenes other than isobutene, less than 3% by weight of butadienes, at least 1.5 ppm by weight of a catalyst deactivator selected from the group of polar nitrogen containing compounds and mixtures thereof, wherein the sum of all components in the C4-hydrocarbon mixture is 100% by weight, the process comprising the steps of (d) contacting the raw C4-hydrocarbon mixture in countercurrent flow with an aqueous stream in an extraction unit yielding an intermediate C4-hydrocarbon mixture, (e) withdrawing at least part of the intermediate C4-hydrocarbon mixture from the extraction unit, and (f) dewatering the withdrawn intermediate C4-hydrocarbon mixture to obtain a purified C4-hydrocarbon mixture having a content of the catalyst deactivator of at most 1 ppm by weight. The invention further relates to a process for obtaining isobutene from an isobutene containing C4-hydrocarbon mixture in a plant comprising an etherification unit, a first distillation unit, an ether cleavage unit and a second distillation unit.

The invention belongs to the technical field of carbon dioxide catalytic hydrogenation, and particularly relates to a preparation method of a supported iron-based catalyst for catalyzing carbon dioxide hydrogenation, the catalyst takes one of TiO2, SiO2, HZSM-5 molecular sieve and gamma-Al2O3 as a carrier and is loaded with three elements of Fe, Zr and K. The preparation method comprises the following steps: S1, respectively drying, crushing and screening the TiO2, SiO2, HZSM-5 molecular sieve and gamma-Al2O3 carrier; four carriers are obtained; s2, mixing an iron-containing metal salt, a zirconium-containing metal salt and an alkali metal auxiliary agent, dissolving in deionized water, and stirring; s3, respectively adding the mixed solution into each carrier, and stirring in a constant-temperature water bath kettle; and S4, drying, grinding and roasting the uniformly stirred solution. The catalyst has the advantages that CO2 hydrogenation reaction can be efficiently catalyzed, and hydrocarbon mixtures with components similar to those of commercial diesel oil can be synthesized.

A method of preparing a polymeric surfactant includes dissolving a sulfonic acid monomer in an aqueous fluid to form a sulfonic acid solution, adding an acrylic monomer and a surfactant monomer to the sulfonic acid solution to form a reactive mixture, adding one or more initiators to the reactive mixture to initiate a reaction in the reactive mixture, and allowing the reactive mixture to react, thereby forming the polymeric surfactant. A method of enhancing oil recovery in a reservoir includes preparing a polymeric surfactant formulation that comprises a polymeric surfactant and a treatment fluid, injecting the polymeric surfactant formulation into an injection well of the reservoir, contacting one or more hydrocarbons present in the reservoir with the polymeric surfactant formulation, thereby forming a hydrocarbon mixture, and extracting the hydrocarbon mixture from a production well of the reservoir.

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.

The present invention relates to a process for removing arsine from a hydrocarbon mixture having 2 to 4 carbon atoms. The process comprises contacting the hydrocarbon mixture having 2 to 4 carbon atoms with a sorbent, wherein the sorbent is a metal organic framework (MOF) comprising: a) at least 1 transition metal selected from the group consisting of a Group 1B metal, a Group 2B metal and a Group 4B metal, and b) an organic ligand selected from a di-carboxylic acid compound or a tri-carboxylic acid compound, and wherein the sorbent is subjected to an alcohol treatment.

The present disclosure relates to a system for processing heavy hydrocarbons, which can reduce the content of heavy fraction impurities in gas phase components and the content of light components in liquid phase components by injecting cooling aids, separation aids and optional stripping aids, thereby improving the effect of gas-liquid separation. Furthermore, the present disclosure separates the flash separation device into multiple separation chambers arranged side by side by means of baffles, each separation chamber is provided with a vapor-hydrocarbon mixture inlet and a gas phase outlet, the high-temperature vapor-hydrocarbon mixture entering the separation chamber is directly introduced into the downstream device from the gas phase outlet of the separation chamber after separation, without the need to adjust the hydrocarbon partial pressure by means of setting a high-temperature regulating valve on the gas phase outlet pipeline, which can reduce the failure rate of the high-temperature regulating valve at high temperature, thereby improving the service life of the system. In addition, the hydrocyclone and the tray are arranged in each separation chamber, which can improve the gas-liquid separation efficiency and the flash effect.