65results about How to "Small pressure drop" patented technology

The application belongs to the technical field of carbonyl sulfur hydrolysis catalysts, and discloses a high-efficiency sulfur-resistant catalyst for carbonyl sulfur hydrolysis, a preparation method and application thereof.The preparation method comprises the following steps: (1) preparing a porous ceramic carrier containing alumina, titanium dioxide and zirconium dioxide; (2) in-situ growing a metal organic framework material containing lanthanum, bismuth and cerium on the surface of the porous ceramic carrier by using a solvothermal method; (3) performing a calcination treatment on the porous ceramic carrier loaded with the metal organic framework material in an oxygen-containing atmosphere to obtain a catalyst precursor; and (4) performing a reducing gas plasma bombardment treatment on the catalyst precursor to obtain the high-efficiency sulfur-resistant catalyst.The high-efficiency sulfur-resistant catalyst has high-efficiency low-temperature activity, excellent sulfur resistance and long service life.

The invention discloses a forming method of a magnesium oxide-based carbon dioxide adsorbent suitable for large-scale preparation. The forming method comprises the following steps: calcining a magnesium-containing precursor to prepare porous magnesium oxide raw powder; the preparation method comprises the following steps: carrying out impregnation modification on magnesium oxide raw powder and an alkali metal salt solution to obtain wet mixed thick slurry, drying the slurry, and carrying out secondary calcination to obtain modified adsorbent raw powder; and mixing the raw powder with deionized water, a forming aid and the like to prepare a plastic wet material, and performing extrusion-spheronization balling, drying and calcining to obtain regular spherical adsorbent particles. The formed adsorbent prepared through the method has the advantages of being controllable in particle size, high in mechanical strength, good in adsorptive property after being formed, excellent in cycling stability and the like, can be used for CO2 chemical adsorption trapping of CO2-containing gas under the medium-temperature condition, and is good in CO2 adsorptive property, economical efficiency of the technological method and environmental protection performance, the process technology is easy to amplify, and the method is suitable for industrial production. The method is suitable for industrial large-scale production.

The application relates to a partition-injection air-bleed circulation combustion chamber and a liquid rocket engine, wherein the partition-injection air-bleed circulation combustion chamber comprises a combustion chamber body and a partition-injection injector; the combustion chamber body is provided with an oxygen inlet collector, a fuel inlet collector and an air-bleed collector; the partition-injection injector is installed on the upper end of the combustion chamber body and is provided with injection holes; the oxygen inlet collector and the fuel inlet collector are communicated with the partition-injection injector and inject oxidants and fuels into the combustion chamber body through the partition-injection injector; the air-bleed collector is installed on the outer side of the middle part of the combustion chamber body and is communicated with the combustion chamber body; the partition-injection injector is disc-shaped and is divided into an equivalence zone, an oxygen-rich zone and a fuel-rich zone from the center to the outside; a partition ring is fixed to the lower surface of the partition-injection injector; the partition ring is in the form of a ring cylinder structure; the partition ring is located between the oxygen-rich zone and the fuel-rich zone and is used for separating the oxygen-rich zone and the fuel-rich zone.

This invention discloses a catalytic reactive distillation unit, apparatus, and method. The catalytic reactive distillation unit includes: a reaction mass transfer channel, the upper end of which receives low-temperature liquid-phase reactants flowing downwards, and the lower end of which receives high-temperature gas phase flowing upwards; the reaction mass transfer channel contains a catalyst layer and a packing layer, with the catalyst layer positioned above the packing layer, and a first space between them; and a rising gas bypass, located outside the reaction mass transfer channel and connected to the first space. The liquid-phase products after the catalytic reaction merge with the high-temperature gas phase in the packing layer and undergo gas-liquid mass transfer. The rising gas phase after mass transfer carries the light components from the liquid-phase products into the rising gas bypass, completing mass transfer separation. This invention, through the setting of the rising gas bypass, not only increases the gas phase flow rate and effectively reduces the pressure drop within the reaction mass transfer channel, but also effectively solves the space occupation problem of the equipment. This invention can clean the blockage of the catalyst filter without additional power and can realize online replacement of the catalyst and / or packing.

This utility model relates to the field of chemical equipment technology, and in particular to a static mixer for chemical raw materials. It includes a mixer cylinder with a support shaft inside. At least one set of mixing units is mounted on the support shaft. The mixing units on the support shaft, arranged from bottom to top, consist of: a guide plate, a right-handed blade, a guide plate, a left-handed blade, a guide plate, and another right-handed blade. The left-handed and right-handed blades have opposite helical directions. The guide plate has guide holes. The left-handed and right-handed blades are evenly spaced circumferentially. The support shaft or mixing unit is fixedly connected to the inner wall of the mixer cylinder. This static mixer for chemical raw materials, through the mixing units formed by the left-handed, right-handed blades, and guide plates, can simultaneously handle cutting and diffusion, improving mixing efficiency and effect, reducing pressure drop, and facilitating cleaning.

The utility model discloses a cross-flow nest plate tube heat exchanger, which belongs to the technical field of heat exchange equipment in a compressed air energy storage system and comprises a shell, a tube plate, a heat exchange tube, a tube pass seal head, a tube pass inlet, a tube pass outlet, nest plates, a shell pass inlet and a shell pass outlet. The heat exchange tube is arranged in the shell through the tube plate, the tube pass end socket is arranged on the side, opposite to the heat exchange tube, of the tube plate, and the tube pass inlet and the tube pass outlet are formed in the tube pass end socket. The sleeve sheets are sleeved on the heat exchange tubes to form a tube bundle with the heat exchange tubes; the multiple shell pass inlets are formed in the upper portion of the shell in the axial direction, and the multiple shell pass outlets are formed in the lower portion of the shell in the axial direction. According to the utility model, through the cross-flow arrangement, the circulation path of the shell pass gas is short, and the pressure drop of the shell pass gas is reduced; the shell pass has multiple inlets and multiple outlets, the adaptive air flux is larger, the requirement of large air flux on low pressure drop of the heat exchanger during compressed air energy storage is met, and then the overall efficiency of an energy storage system is improved.

The utility model discloses a kind of heat exchange equipment and pulping system. Heat exchange equipment includes heat exchange cylinder and cold pipe. Heat exchange cylinder is provided with heat exchange cavity, feed inlet and discharge port, heat exchange cavity is communicated with feed inlet and discharge port, cold pipe is set in heat exchange cavity, and it is used for being contacted with slurry, cold pipe includes at least one coil pipe, each coil pipe is spirally arranged along the central axis of heat exchange cylinder, each coil pipe includes multiple radiating sections, multiple radiating sections are sequentially connected along the axial direction of heat exchange cylinder, in the axial section of the central axis of heat exchange cylinder, two adjacent radiating sections are spaced apart. Using the heat exchange equipment provided by the utility model, the resistance in the flow process of slurry is reduced, the pressure drop of heat exchange equipment is reduced, the energy consumption of heat exchange equipment is reduced, the pipeline wear and tear and leakage risk caused by high pressure of heat exchange equipment are reduced, the service life of heat exchange equipment is prolonged, the maintenance cost is reduced, and the heat exchange area between slurry and cold pipe is increased, the heat dissipation effect of slurry is improved.

The utility model belongs to the technical field of industrial wastewater treatment, and particularly relates to a steam stripping dephenolization system, which comprises a steam stripping section positioned at the upper section of a closed tower, and a plurality of water collecting tanks arranged below the steam stripping section; the regeneration section is positioned at the lower section of the closed tower, and a steam channel is arranged below the regeneration section; the spraying system comprises a spraying assembly I, a spraying assembly II and a spraying assembly III; the spraying assembly I is positioned above the steam stripping section and is connected with the preheater through a pipeline; the spraying assembly II is positioned above the regeneration section; and the spraying assembly III is positioned in the filler layer of the regeneration section.

The invention discloses a chlorine-containing pyrolysis oil radial moving bed reaction adsorption dechlorination hydro-conversion method, and belongs to the technical field of chlorine-containing oil product hydrotreatment and refining. According to the method, chlorine-containing pyrolytic oil is sequentially subjected to fixed bed selective hydrogenation, radial moving bed reaction adsorption dechlorination and fixed bed deep hydrofining reactor treatment; the radial moving bed is filled with a core-shell structure reaction and adsorption integrated catalyst, the core is a hydrodechlorination active component, the shell mainly adopts zinc oxide to adsorb HCl and is fixed in situ, and meanwhile, online addition and discharge of the catalyst are realized through the radial moving bed. According to the invention, poisoning of chlorine to the catalyst is effectively inhibited, the corrosion risk of equipment is reduced, shutdown of the device is avoided, the dechlorination efficiency is improved, the continuous operation period is prolonged, efficient, stable and economical hydro-conversion of the chlorine-containing pyrolytic oil is realized, and the obtained product can be used as clean fuel oil or a chemical raw material.

This application relates to a heat exchanger and a thermal management system. The heat exchanger includes a flow guide plate with first flow guide grooves. Adjacent first flow guide grooves form multiple flow splitting gaps. The first flow guide groove is formed by either a straight groove segment or a curved groove segment alone, or by alternating arrangements of both. The straight groove segment includes multiple staggered channels connected sequentially along its own centerline, with adjacent staggered channels arranged in a direction perpendicular to the centerline of the straight groove segment. The flow guide plate also has multiple second flow guide grooves and flow guide protrusions. The flow guide protrusions divide the area of ​​the cold flow channel layer between the first and second flow guide grooves into multiple flow guide channels. The flow area of ​​the flow guide channels, the flow area of ​​the first flow guide groove, and the flow area of ​​the second flow guide groove are all equal. The heat exchanger and thermal management system provided by this application solve the problem of thermal stress concentration in the heat exchanger caused by inconsistent heat exchange effects at different locations in the cold flow channel layer.

A water-cooled plate structure for cooling high-power-density power electronic devices and its design method based on SIMP topology optimization are disclosed. The structure includes a water-cooled plate body with an inlet, an outlet, and a flow channel region. The flow channel region includes an inlet guiding region and a parallel flow channel region. The inlet guiding region contains several double-elliptical guiding structures arranged in a needle-fin array. The parallel flow channel region consists of several dispersed independent flow channels, each corresponding to a heat source region of a chip. This invention, through the coordinated design of the inlet guiding region and the parallel flow channel region, achieves efficient heat dissipation and good temperature uniformity while ensuring low flow resistance, meeting the heat dissipation requirements of high-power electronic devices.

Belonging to the technical field of underground water treatment, the invention provides an underground water treatment system, which comprises a raw water tank, a security filter, an ultrafiltration membrane assembly, an intermediate water tank, an ozone treatment device and a water production tank. An outlet of the raw water tank is communicated with an inlet of the main pipeline, and an outlet end of the main pipeline is communicated with the water producing tank; a security filter, an ultrafiltration membrane assembly, a middle water tank and an ozone treatment device are sequentially communicated from the inlet end to the outlet end of the main pipeline. Polluted groundwater is fed into the security filter through the high-pressure pump, suspended particles in the water are preliminarily removed, then the water enters the ultrafiltration membrane assembly for secondary filtration, macromolecular organic pollutants such as petroleum are further removed, the chemical oxygen demand of the polluted groundwater is greatly reduced, and the water subjected to secondary filtration flows into the middle water tank to be recycled. And further removing soluble organic matters in subsequent oxidation treatment.

This application discloses a mixer and an air mixing chamber, relating to the field of air mixing technology. The mixer includes a housing with a mixing chamber, an inlet, and an outlet. The mixing chamber has an internal mixing structure, which includes a guide channel and a bypass channel. One end of the guide channel is connected to the inlet, and the other end extends to the bottom of the mixing chamber. The two ends of the bypass channel are connected to the guide channel and the outlet, respectively. This allows the fluid medium flowing into the mixing chamber from the inlet to be guided to the bottom of the mixing chamber via the guide channel, and then flows upwards through the bypass channel to exit the mixing chamber from the outlet. The aforementioned mixer addresses the technical problems of low mixing efficiency and high pressure drop in existing mixers.

The utility model discloses a packing structure for seawater desalination, which belongs to the field of container manufacturing and comprises a plate cylinder, a plurality of support rods are arranged in the plate cylinder in parallel, and two ends of each support rod are connected onto the inner wall of the plate cylinder; a plurality of stand columns are arranged on the supporting rod and are parallel to the center line of the plate cylinder. The two stand columns at different positions are sleeved with spiral-wire-shaped rings, and each spiral-wire-shaped ring is formed by winding at least one spiral wire. The utility model not only facilitates the installation and arrangement of the filler, but also facilitates the replacement after local damage, and is low in cost.

The application provides a combined vanadium-phosphorus catalyst system and application thereof, which comprises at least two catalyst beds, the total porosity of the catalyst bed near the raw material inlet is the largest, different vanadium-phosphorus catalysts are filled in different catalyst beds, and the general formula of the vanadium-phosphorus catalyst is VP x M y O z Vanadium-phosphorus oxide active component, wherein x=0.9-2, y=0-0.3, z is a value satisfying a stoichiometric balance, and M is from a promoter element component. The combined vanadium-phosphorus catalyst system can effectively reduce the reaction hot spot and catalyst bed pressure drop, improve the catalytic performance and maintain the operation stability of the catalyst in the gas phase selective oxidation reaction of hydrocarbons.

The utility model discloses a pole cooling plate for a cylindrical battery, and belongs to the technical field of battery cooling. The cooling plate comprises two long-strip-shaped aluminum alloy plates which are the first cooling plate and the second cooling plate respectively, trapezoidal cooling flow channels which are arranged in parallel are formed in plate bodies, a contact interface used for being attached to a battery pole column is formed on one side of the cooling plate, and a protruding face is arranged on the other side of the cooling plate. Two ends of the cooling plate are respectively provided with an inlet and an outlet and connected with an external cooling system; the circular groove matched with the pole in shape is formed in the binding face, the contact gap is filled with heat conduction silica gel or a phase change material, and meanwhile, the space between the cooling plate and the battery is filled with insulating powder or provided with an insulating layer, so that the heat conduction efficiency is improved, and the electrical safety is guaranteed. The structure can realize synchronous cooling of a plurality of pole regions, improves heat dissipation efficiency, temperature control precision and module safety, and is suitable for heat management requirements of a new energy automobile battery pack and an energy storage system.

The invention relates to the technical field of recovery systems, in particular to a fermented grain spreading cooling dead steam efficient recovery system and an intelligent control device thereof. According to the technical scheme, the waste steam collecting device comprises a gas collecting assembly, the gas collecting assembly comprises multiple sets of main gas pipes, multiple sets of connecting branch pipes are connected to the main gas pipes, one ends of the connecting branch pipes are connected with gas collecting hoods, and the multiple sets of gas collecting hoods are located above a fermented grain spreading and cooling machine, a steamer, a fermented grain turning position and a vinasse pouring position respectively and used for collecting waste steam generated at all positions; the condensing mechanism is connected to one end of the main air pipe and is used for condensing dead steam; and the intelligent resistance balance assemblies are respectively arranged on the fermented grain spreading and cooling machine branch and the steamer branch and are used for dynamically adjusting the resistance of each branch. The system can realize efficient capture and recovery of the dead steam in brewing production, reduces the operation energy consumption of the system, improves the response speed and the operation stability of the system to working condition fluctuation, and ensures efficient development of brewing production.

The utility model provides a cooling and lubricating system of a hybrid framework and a vehicle. The system comprises a driving lubricating oil channel, a branch oil channel, a first cooling cavity, a second cooling cavity, an oil discharge channel, an oil suction port and an oil cooling circulation mechanism. The active lubricating oil channel is communicated with the first cooling cavity, and the active lubricating oil channel and the first cooling cavity are combined to form an active cooling and lubricating framework; the branch oil duct is communicated with the second cooling cavity, and the branch oil duct and the second cooling cavity are combined to form a passive cooling lubricating framework; the oil discharge channel is communicated between the first cooling cavity and the second cooling cavity, and excessive oil in the second cooling cavity flows to the first cooling cavity through the oil discharge channel; the oil suction port is formed in the bottom of the first cooling cavity, one end of the oil cooling circulation mechanism communicates with the oil suction port, and the other end of the oil cooling circulation mechanism communicates with the driving lubricating oil channel and the branch oil channel.

This invention provides a method for preparing a microtube monolithic oxygen carrier, comprising the following steps: First, a metal oxide is uniformly mixed with a binder, solvent, and dispersant to obtain a slurry; second, the slurry and a first curing agent are simultaneously added to a porous mold and extruded to obtain a first product; the first product is placed in a second curing agent to complete a phase transformation process, and then dried and shaped to obtain a second product; finally, the second product undergoes preliminary calcination and high-temperature calcination to obtain the microtube monolithic oxygen carrier. The monolithic oxygen carrier prepared by this invention has abundant axial and radial hierarchical pore structures, enabling simultaneous achievement of low bed pressure drop and low heat and mass transfer resistance. The oxygen carrier exhibits high reactivity, strong resistance to sintering and carbon deposition, and can be used in processes such as chemical looping combustion, reforming, or hydrogen production of gaseous fuels in fixed-bed reactors. The oxygen carrier structure is adjustable, has wide applicability to raw materials, and a simple preparation process, allowing for large-scale preparation and possessing broad prospects for promotion and application.

This invention relates to ion exchanger filtration devices and ion exchanger filter elements. An ion exchanger filtration device (100), particularly for a fuel cell system, comprises: a housing (102) including a cover (112) and at least one inlet opening (104) and at least one outlet opening (106) for a medium, the housing extending in an axial direction (80); and an ion exchanger filter element (10) surrounded by the housing, including one or more inlet ports (34) at an upstream end (20), and a circumferentially extending wall (32) surrounding a container (16) filled with ion exchange material (12), the wall including one or more outlet ports (18) at a downstream end (21) opposite the upstream end. The upstream end includes a sealing plane (60) providing a sealing contact with the housing, the sealing plane being inclined at an angle (70) relative to the axial direction.

This application relates to the field of linear voltage regulator circuit technology, and discloses a linear voltage regulator circuit applied to a multi-power-domain system, where the multi-power-domain system includes N power supplies, where N is an integer greater than 1. The linear voltage regulator circuit includes: N parallel power transistor branches, each power transistor branch including a transmission gate and a power transistor connected in series, and the source of each power transistor being connected to a power supply; a control circuit including N control signal output terminals, each control signal output terminal being connected to the control terminal of a transmission gate; the N control signal output terminals output control signals for selecting power transistors; wherein, the transmission gates of the N power transistor branches receive the control signals output by the control circuit and turn on the selected power transistors according to the control signals. The linear voltage regulator circuit provided in this disclosure can prevent the current generated in the power transistor from flowing through the control circuit, thereby reducing the voltage difference between the input and output terminals of the control circuit. This application also discloses a power supply device.

The utility model discloses a novel precision filter element with a folding structure, which comprises an outer filter element, filter element seats fixedly mounted at the bottom end and the top end of the outer filter element, a bottom cover arranged at the bottom end of the lower filter element seat, a top cover arranged at the top end of the upper filter element seat, and a folding filter component arranged on the outer side of the outer filter element. According to the novel precise filter element with the folding structure, the folding filter assembly, the inner filter element and the outer filter element are arranged, and a filter layer is made of a highly hydrophobic and oleophobic fiber filter material and is folded, so that the filter area is increased; the framework is a high-flux and high-strength framework, and the framework and the end cover are made of corrosion-resistant materials, so that the integrity and the safety of the filter element are ensured; the folding filter assembly is of a folding structure, the filter area is increased through the folding structure, the filter area of the precision filter element with the same size and the novel folding structure is 3-5 times that of a traditional precision filter element, pressure drop is reduced, and the service time is prolonged.

The application discloses a two-phase flow distributor, which comprises a distributor body, an inlet pipe arranged at the top of the distributor body, a scouring sleeve arranged at the bottom end of the inlet pipe, a first outlet hole arranged on the inlet pipe, a second outlet hole arranged on the scouring sleeve, a primary orifice plate arranged below the scouring sleeve, a plurality of distribution heads arranged on the primary orifice plate, a top inlet, a bottom outlet and a side inlet arranged on the distribution head, a secondary tube plate arranged below the primary orifice plate, a plurality of heat exchange tubes arranged on the secondary tube plate, a fluid inlet arranged on the heat exchange tube, and the height of the fluid inlet being equal to or higher than the height of the upper surface of the secondary tube plate, and the heat exchange tube being arranged in a staggered mode with the distribution head. The two-phase flow distributor adopts a multi-stage and pressure-drop-free distribution mode, can make the two-phase flow distribution more uniform, improve the heat exchange performance of the heat exchanger, reduce the possibility of frost formation of the heat exchanger, effectively prolong the defrosting cycle of the heat exchanger, and reduce the system operation energy consumption.

The invention discloses an electronic nose system for headspace detection. The membrane rupture sampling device comprises a processor, a gas detection device, a micro gas pump and a membrane rupture sampling cover, the membrane rupture sampling cover comprises a cover body and an annular tightening mechanism, the annular tightening mechanism is located below the cover body, the annular tightening mechanism and the cover body are in sealed connection through an annular flexible connecting membrane, the cover body can rotate relative to the annular tightening mechanism, and the membrane rupture sampling cover is located below the annular tightening mechanism. The cover body is provided with a gas inlet interface and a gas outlet interface which penetrate through the cover body, the bottom surface of the cover body is provided with a film breaking structure for puncturing a container sealing film, the gas outlet interface is connected with a gas inlet of a gas detection device through a micro gas pump, and the gas detection device is electrically connected with a processor. The closed container filled with gas to be detected is subjected to dynamic sealing controlled membrane rupture through the membrane rupture sampling cover, the gas sampling drift diameter is large, and the detection precision is improved.

The present disclosure provides a display panel and a display device, and relates to the technical field of display. A plurality of pixels electrically connected with pixel circuits are arranged in a display area. The display panel comprises a plurality of first signal terminals arranged along a first direction and a first signal line connected with the first signal terminals respectively. The first signal terminals are configured to provide a first power voltage signal to the pixel circuits through the first signal line. The first signal line extends along a second direction. The first direction and the second direction intersect and are parallel to a light-out surface of the display panel. The first signal terminals comprise a first group of signal terminals and a second group of signal terminals. The number of the first signal terminals contained in the second group of signal terminals is greater than the number of the first signal terminals contained in the first group of signal terminals. Along the first direction, the first group of signal terminals is located between the second group of signal terminals and an edge of the display panel. In this way, the voltage drop of the first power voltage signal in the transmission process is reduced, and the display uniformity is improved.

The invention relates to the technical field of carbon dioxide capture, in particular to a porous medium spiral microchannel carbon dioxide adsorbent carrier. Comprising a carrier body; the carrier body is of a honeycomb structure, a plurality of airflow micro-channels spirally extending in the axial direction are formed in the carrier body, the screw pitch of each airflow micro-channel is 5-7 cm, and the aperture of each airflow micro-channel is 5-10 mm; a carbon dioxide adsorbent is loaded in the carrier body. The porous characteristic of the carbon dioxide adsorbent carrier can increase the contact area of the adsorbent and gas, and the carbon dioxide adsorption efficiency is improved. And the spiral structure can prolong the gas flow path and strengthen the rotational flow effect, so that the adsorbent is more fully contacted with the gas, and meanwhile, the design of the spiral channel is beneficial to uniform transfer of heat and improvement of the desorption efficiency.

The utility model discloses a kind of multi-tower pressure swing adsorption type nitrogen generator, it is related to gas separation equipment technical field, including nitrogen storage tank, integrated gas path module and adsorption component, the adsorption component includes six adsorption towers, the outer wall of adsorption tower is wrapped with heat preservation layer, the tower import and tower export through heat preservation layer are respectively installed in the lower part and upper part of the outer wall of adsorption tower, the top and bottom of adsorption tower are provided with conical porous plate, the cavity formed by conical porous plate is layered filled with adsorbent bed layer.The utility model is equipped with adsorption component, realizes the function of improving the purity of nitrogen made, eliminates adsorption empty window period by asynchronous cycle design, improves flow continuity, data feedback industrial PLC carries out real-time regulation and control, reduces nitrogen purity fluctuation, satisfies high-purity nitrogen demand.

The application discloses a kind of for polyolefin high-pressure flare gas light hydrocarbon recovery complex absorbent, preparation method and recovery system and recovery method, it is related to petrochemical tail gas resource utilization technical field.Complex absorbent includes: main absorption component, auxiliary absorption component, heat stabilizer and viscosity modifier by mass fraction.The system includes compression impurity removal unit, absorption desorption purification unit and catalytic oxidation tail gas treatment unit, and forms integrated complete equipment.The method includes compression impurity removal, low-temperature oil absorption, flash evaporation, desorption purification, product separation and catalytic oxidation tail gas purification process.The application solves the technical problems of poor C2 selectivity, high nitrogen co-absorption rate, high temperature easy deterioration, high viscosity of existing absorbent, low separation precision of existing device, high energy consumption and tail gas not up to standard through the synergistic effect of four-function complex absorbent and double-tower coupled integrated device, realizes the efficient recovery and resource utilization of C2+ Light hydrocarbon in high-nitrogen-content polyolefin high-pressure flare gas.