158 results about "Structured packing" patented technology

A gas-liquid contactor includes at least one packing section, a liquid distribution system, one or more liquid collection devices, and a fan. The at least one packing section includes a plurality of packing supports. Each packing support is removably attached to at least one other packing support and includes a structure defining a bottom surface and a packing perimeter and a plurality of structured packings positioned on the bottom surface within the packing perimeter. The structure includes at least one first attachment and at least one second attachment. The liquid distribution system is configured to flow a carbon dioxide (CO2) capture solution through at least one packing section. The one or more liquid collection devices include a bottom basin positioned beneath the at least one packing section. The fan is operable to form a CO2 lean stream and flow the CO2 lean stream from the at least one packing section.

The invention provides an NMP waste liquid rectification system and process for a lithium battery, and relates to the technical field of NMP waste liquid treatment. The rectification system comprises a dehydrating tower and a product tower which are connected in series, the dehydrating tower is connected with the raw material tank, a condenser 1 is arranged at the top of the dehydrating tower, a reboiler 1 is arranged at the bottom of the dehydrating tower, and the bottom of the dehydrating tower is connected with the product tower; a condenser 2 is connected to the top of the product tower, a reboiler 2 is arranged at the bottom of the product tower, a concentrator is connected to the bottom of the product tower, and a kettle residue discharge outlet is formed in the bottom of the concentrator; a condenser 3 is arranged at a side line extraction opening of the product tower and is connected with a finished product storage tank; and a plurality of layers of tower plates are arranged in the dehydrating tower and the product tower, and are filled with structured packing. The preparation process comprises the following steps: dehydrating and removing amine, extracting a main product from a side line, and recycling a high-boiling residue. According to the invention, double towers are used together, and the product is extracted from a side line and has high quality; and more heat sources are saved, the production cost is low, and operation is easy and safe.

The invention relates to the technical field of distillate oil refining, and discloses a vacuum distillate oil deacidification method which comprises the following steps: S10, performing deacidification treatment on vacuum distillate oil and a deacidification agent in a deacidification unit; s20, carrying out extraction separation on the obtained deacidification agent to be generated and a back extraction agent in a back extraction mixing coalescer; s30, the separated supernatant liquid is conveyed to a back extractant regeneration device for regeneration treatment; s40, the separated lower-layer liquid enters a deacidification agent regeneration device to be subjected to regeneration treatment; the deacidification unit comprises one or more deacidification mixing coalescers, each of the deacidification mixing coalescers and the back extraction mixing coalescers comprises a shell, each shell is provided with a premixing area, a coalescence separation area and a settling separation area from top to bottom, structured packing is arranged in the premixing areas, and polar fiber bundles are arranged in the coalescence separation areas; the deacidification agent contains organic amine, a cosolvent and water. The method can be used for deacidification treatment of vacuum distillate oil with high viscosity and high acid value, and is wide in application range.

The invention relates to a structured packing welding device and belongs to the technical field of structured packing welding equipment.The structured packing welding device is characterized in that a welding bin is arranged on a transposition table and can rotate along with the transposition table, a positioning welding tower is arranged on the transposition table, and a movable part of the positioning welding tower can stretch into the welding bin to weld workpieces; the side face of the positioning welding tower is provided with an overturning module used for transferring filler, and the overturning module is arranged above the welding stock bin. The transposition table and the welding stock bins provide a plurality of welding stations for the structured packing, a plurality of welding assemblies arranged on the positioning welding tower conduct local welding on the structured packing in the welding stock bins at different stations, and the firmness of packing welding spots is guaranteed. The overturning module can replace manual work to clamp and overturn the multiple corrugated plates at a time, on one hand, the operation efficiency of positive and negative staggered stacking of the corrugated plates is improved, on the other hand, the labor intensity of workers is relieved, and the operation safety is improved.

The system comprises a gradient catalytic reaction rectifying tower and a temperature control system, the rectifying tower is sequentially provided with a rectifying section, a reaction section and a stripping section from top to bottom, the reaction section is filled with an ion exchange resin solid catalyst, and the stripping section is filled with an ion exchange resin solid catalyst. The radiuses of the catalyst bag units are distributed in a gradient mode from small to large along the height of the tower, the catalyst bag units have the functions of catalytic reaction and mass transfer separation, the rectifying section and the stripping section are filled with structured packing or high-separation-capacity metal wire mesh packing, a gas-liquid separator is arranged at an outlet of the stripping section, and a temperature control system achieves segmented monitoring through a multi-point temperature sensor. The surface of the catalyst can be subjected to functional treatment to improve the decomposition resistance; the method comprises the following steps: feeding trichlorosilane generated by cold hydrogenation into the upper part of a reaction section from a feed port, carrying out disproportionation reaction at the gradient temperature of 20-100 DEG C and the pressure of 0.3-0.6 MPa according to the reflux ratio of (15-30): 1 to generate silane, and carrying out rectification and extraction separation to obtain high-purity silane with the purity of 99.999% or above.

The present invention discloses a high-efficiency catalytic distillation tower for esterification of ethylene glycol and acetic acid: the interior of the tower includes three parts from top to bottom: the upper part is a distillation section, the middle part is a catalytic reaction section, and the lower part is a stripping section. The distillation section and the stripping section are filled with tower internals, and the catalytic reaction section is filled with a combined structured packing filled with catalyst. A gas phase outlet is provided at the top of the tower, a reflux port is provided at the upper part of the tower wall, an excess monomer inlet I is provided at the middle and upper part of the tower wall and is connected to the bottom of the distillation section, or an excess monomer inlet II is provided at the middle and lower part of the tower wall and is connected to the top of the stripping section; an inlet for a mixture of ethylene glycol, acetic acid, ethylene glycol monoacetate, and ethylene glycol diacetate is provided at the middle part of the tower wall and is connected to the lower part of the catalytic reaction section, and a discharge port is provided at the bottom of the tower; a gas phase outlet is connected to a condenser, and the outlet of the condenser is connected to a phase separation tank. The present invention solves the technical problem of insufficient catalytic and separation capacity of a catalytic distillation tower for esterification of ethylene glycol and acetic acid.

Belonging to the technical field of fine chemical product separation and purification, the invention discloses a beta-bromophenylethane rectification purification process, which comprises the steps of system negative pressure pretreatment, falling film evaporation directional separation, structured packing layer gas-liquid mass transfer, precise reflux ratio regulation and control, segmented collection (front fraction-qualified product), and residual liquid treatment and system circulation. According to the process, the negative pressure of a system is stabilized at 800-1200 Pa, the material temperature of a falling film evaporation discharging end is controlled at 125-135 DEG C, the feeding flow is stabilized at 1.8-2.2 m / h, the reflux ratio is regulated and controlled at 0.8: 1-1.2: 1, and the process realizes efficient purification of beta-bromopheny ethane through precise negative pressure control, synergistic linkage of falling film evaporation and a rectifying tower, segmented material collection and a circular treatment mechanism, so that the process is suitable for industrial production of beta-bromopheny ethane. According to the method, the purity of beta-bromopheny ethane can stably reach 99.5% or above, the material recovery rate is increased to 92% or above, energy consumption is reduced by 15-20% compared with that of a traditional process, material thermal decomposition loss is avoided, and the method is suitable for industrial large-scale production.

The invention discloses a multi-section energy-saving fractionating tower and a use method, and belongs to the technical field of fractionating towers, the multi-section energy-saving fractionating tower comprises a tower body, a gas distributor mounted at the bottom end in the tower body, and a gas outlet mounted at the middle position of the top end of the tower body. Small-porosity structured packing and large-porosity bulk packing are arranged at the top of the lower partition plate, high-flow-rate deposition of fine particles on the tower top is reduced under the condition that gas and liquid are evenly distributed, meanwhile, a screen plate is arranged in the middle of the bulk packing, and shifting rods are evenly and vertically fixed to the upper surface and the lower surface of the screen plate, so that the high-flow-rate deposition of the fine particles on the tower top is reduced. The driving mechanism is controlled to provide power for the rotating mechanism by utilizing the pressure difference change of the upper end and the lower end in the [-shaped gas guide pipe, so that the rotation of the net plate is controlled, the position change of the filler can be controlled and the permeation effect is improved under the condition that the filler is blocked, and the device can effectively improve the permeation effect through the synergistic effect of the filler porosity gradient design and mechanical self-cleaning. And the limitation of the traditional static anti-blocking technology is broken through.

The invention relates to a reactor, in particular for carrying out polycondensation or depolymerization reactions, comprising at least one inlet, at least one product outlet line, a liquid zone, an inner zone arranged above the liquid zone, and a gas zone comprising at least one gas outlet line, wherein the gas zone is arranged above the inner zone, and wherein the gas zone has a larger cross-sectional area than the inner zone, and wherein the gas zone comprises a demisting element connected to a scrubbing liquid inlet disposed in the gas zone and a scrubbing liquid outlet disposed in the gas zone, and wherein the inner region comprises one or more inner components selected from the group consisting of a structured packed bed, a random packed bed and a hybrid heat exchange element for increasing the surface to volume ratio within the inner region wherein the one or more inner components have a specific surface area of 10 to 1,000 m2 / m3.

The utility model relates to the technical field of ethyl acetate production, in particular to a recovery tower which comprises a tower body, a plurality of liquid distributors, a demister and a heat exchange mechanism, an air outlet is formed in the top of the tower body, a waste discharge port is formed in the bottom of the tower body, a plurality of structured packing sections are arranged in the tower body, and grid plates are arranged at the bottoms of the structured packing sections; the plurality of liquid distributors are dispersedly arranged in the tower body, and the adjacent liquid distributors are separated by regular packing sections; the demister is arranged on the top of the liquid distributor and the structured packing section; the heat exchange mechanism comprises a mounting frame, a coil pipe and a plurality of fixing ring buckles, the mounting frame is arranged at the bottom of the tower body, and the coil pipe is fixedly mounted on the mounting frame through the fixing ring buckles; and the two ends of the coil pipe penetrate out of the tower body and form connecting pipes. According to the recovery tower, the demister is arranged in the existing recovery tower, so that foam generated after liquid distribution of the liquid distributor can be eliminated, waste liquid is treated in the structured packing section, and evaporation and recovery of ethanol in the waste liquid are facilitated.

The invention relates to an aluminum oxide foamed ceramic structured packing and a preparation method and application thereof, the preparation method comprises the following steps: mixing pseudo-boehmite, gibbsite, alpha-aluminum oxide, concentrated nitric acid and water to obtain ceramic slurry; organic foam is coated with the ceramic slurry, then the organic foam is put into a mold to be subjected to mold closing curing, and a corrugated plate sheet is obtained; a corrugated plate is soaked in the ceramic slurry, then drying and curing are conducted, and a pretreated corrugated plate is obtained; stacking a plurality of pretreated corrugated plates according to a specified sequence, then integrally dipping in ceramic slurry, and then drying and curing to obtain a primary filler body; and roasting the primary filler body to obtain the aluminum oxide foamed ceramic structured filler. Alpha-aluminum oxide in the aluminum oxide foamed ceramic structured packing provided by the invention is relatively high in purity, excellent in corrosion resistance and mechanical property and not easy to deform and crack, the wall thickness of a single piece is less than or equal to 1.5 mm, and the aluminum oxide foamed ceramic structured packing has a good mass transfer effect.

The invention relates to the technical field of resources and environments, and discloses an intelligent sewage and agriculture complementary device and a control method thereof.The device comprises an adjusting tank and a shell; a sewage moderate treatment module, a resource utilization module, a clean water tank and a digital intelligent control module are arranged in the shell; the sewage moderate treatment module comprises a water inlet main pipe, a membrane processor group and a water storage tank; the membrane treatment unit comprises a supporting structure, structured packing and a water distribution unit; the resource utilization module comprises a functional pool, a water distribution unit and a three-dimensional hydroponic bed unit; the digital intelligent control module comprises an adjusting tank sewage data acquisition unit and an analysis control unit; the analysis control unit is used for analyzing the sewage data of the regulating reservoir and the structured packing state, and controlling the secondary treatment degree of the sewage moderate treatment module on the domestic sewage; the domestic sewage subjected to secondary treatment is subjected to resource utilization through the three-dimensional hydroponic bed, so that the domestic sewage reaches the discharge standard.

To provide a distillation device that can cope with a significant increase in the flow rate of flowing fluid, and allows for a compact size of a distillation tower, and a method of concentrating heavy water and a method of producing concentrated heavy water.SOLUTION: A distillation device comprises: one or more distillation towers containing a regulated filled object formed of a metal material in the tower(s) ; one or more evaporators; one or more condensers; a channel-type liquid distributor that is arranged above the regulated filled object in a vertical direction for distributing liquid to the regulated filled object, the liquid distributor being formed of two distributors including an upper liquid distributor arranged on an upper side and a lower liquid distributor arranged on a lower side; a pipe that feeds liquid to the upper liquid distributor; a pipe that feeds liquid to the lower liquid distributor; and one or more valves arranged on the pipe that feeds liquid to the upper liquid distributor.SELECTED DRAWING: Figure 1

The utility model discloses a reticulate pattern type polytetrafluoroethylene corrugated structured packing which comprises a packing body, the packing body is cylindrical, a plurality of layers of gas-liquid channels are arranged on a barrel body of the packing body at intervals, each layer of gas-liquid channel comprises outer windows arranged on the barrel body at intervals in the radial direction of the packing body, and the outer windows on the adjacent layers are arranged in a staggered mode. Tongue pieces are arranged in the positions, where the gas-liquid channels are located, of the cylinder at intervals, one ends of the tongue pieces are connected with the cylinder between the outer windows, the other ends of the tongue pieces are connected with the inner ring body, an inner flow hole is formed in the middle of the inner ring body, and inner windows communicated with the inner flow hole and an inner cavity of the cylinder are formed in the positions, between the tongue pieces, of the inner ring body. And the outer surface and the inner surface of the cylinder body are respectively provided with reticulated micro-bulges which are mutually staggered. The Pall ring packing is compact in structure and convenient to manufacture, and the specific surface area of the Pall ring packing is increased by more than 20% compared with that of the existing Pall ring packing with the same specification, so that gas-liquid contact exchange is more sufficient, the mass transfer effect is higher, and the gas-liquid exchange treatment capacity is increased.

The utility model provides environment-friendly low-resistance structured packing, which relates to the technical field of environment-friendly low-resistance structured packing and comprises an equipment outer shell and a first equipment inner shell, a first electromagnetic iron core is arranged on one side of the equipment outer shell, a fastening screw is arranged on one side of the equipment outer shell, and a limiting baffle is arranged on one side of the equipment outer shell. The longitudinal structured packing is arranged at the bottom of the transverse structured packing, so that the characteristics of the transverse structured packing and the longitudinal structured packing can be combined during use, the filtering fineness is improved, different substances are better separated, the separation performance is improved, meanwhile, the equipment space is fully utilized, the treatment capacity is improved, and the pollutant removal efficiency is improved; the environment is better protected, and the environment-friendly performance is greatly improved.

The utility model discloses a self-cleaning honeycomb structured packing phenol recovery and separation assembly, which belongs to the technical field of chemical separation, and is characterized by comprising a mounting seat, a controller is arranged on the front side of the top of the mounting seat, and a treatment tower is fixedly connected to the left side of the top of the mounting seat; a honeycomb structured packing main body is arranged in the treatment tower, a switching assembly is fixedly connected to the right side of the top of the mounting base, online cleaning of honeycomb structured packing can be achieved through the cleaning assembly, damage to the packing due to disassembly is avoided, and the service life of the packing is prolonged; according to the honeycomb structured packing cleaning device, the switching assembly can conveniently achieve selective introduction of the absorbent and the cleaning fluid, the cleaning fluid in the cleaning fluid storage box can be conveyed to the cleaning assembly only by operating the reversing valve, cleaning of the honeycomb structured packing is achieved, the medium requirements in different working states are met, and then the working efficiency is improved.

The application relates to the technical field of structured packings, and particularly discloses a high-efficiency packing device for CCUS (Carbon Capture, Utilization and Storage), which comprises a packing tower, primary packing and secondary packing arranged in the packing tower, an installation lining is arranged in the packing tower, a plurality of installation grooves are formed in the installation lining, the installation grooves are spirally arranged along the height direction of the packing tower, installation rods are arranged on the primary packing and the secondary packing, installation balls are arranged on the installation rods, the installation balls are matched with the installation grooves, when the primary packing and the secondary packing are installed, the installation balls are slid into the installation grooves, the primary packing or the secondary packing is pushed to drive the installation balls to slide along the installation grooves, the installation balls are slid into the bottoms of the installation grooves, and the installation of the primary packing or the secondary packing is completed; the high-efficiency packing device for CCUS has the effect of improving the convenience of installation of the primary packing and the secondary packing.

This invention relates to a structured packing for a liquid-liquid extraction tower and its preparation method. By setting type A packing and type B packing, and by specifically setting the specific combination of the packing, a high mass transfer specific surface area and a high mass transfer efficiency are achieved during extraction in the liquid-liquid extraction tower.

The present invention relates to the technical field of packed towers, and particularly to a packing support. It includes a steel wire mesh filling nest, a T-shaped beam, a T-shaped beam support, a support ring and a support plate; the support ring is annular and is fixedly connected to the inner wall of the packed tower, the support plate is fixedly connected to the inner wall of the packed tower, and the support plate supports the support ring; one or more T-shaped beams are arranged in the packed tower, the vertical beam of the T-shaped beam is upward, both ends of the cross beam of the T-shaped beam are fixedly connected to the T-shaped beam support, and the T-shaped beam support is fixedly connected to the inner wall of the packed tower; the steel wire mesh filling nest is placed on the plane formed by the upper surface of the cross beam of the T-shaped beam and the upper surface of the support ring. The present invention can place structured packings or random packings, reduce the tower height and cost; is beneficial to uniform gas-liquid distribution and improve the mass transfer efficiency.

The utility model belongs to the technical field of hydrogen peroxide production equipment, and particularly provides a purification tower for purifying industrial-grade hydrogen peroxide, which comprises a tower body, the top of the tower body is provided with an exhaust port, one side of the upper part of the tower body is provided with a transverse feed port, and the bottom of the tower body is provided with a discharge port. A plurality of groups of distributors and structured packing are arranged in the tower body from top to bottom, a collector is arranged between every two adjacent groups, and the distributor in the uppermost group is communicated with the feed port; a transverse steam inlet is formed in one side of the lower part of the tower body, a steam outlet is formed in the other opposite side of the lower part of the tower body, and the steam inlet and the steam outlet are both positioned at the bottoms of the lowest group of distributor and structured packing. According to the hydrogen peroxide purification device disclosed by the utility model, through the multi-stage distribution of the plurality of groups of distributors and structured packing and the arrangement of steam heating, organic matters in hydrogen peroxide can be separated quickly, the content of total organic carbon (TOC) is reduced, and the purification efficiency and effect are improved.

The invention discloses a high-pressure packing sealing structure, including an inner tube, an outer tube and a packing sealing structure, wherein the packing sealing structure includes a T-shaped sealing pressure ring sleeve, a wedge-shaped bevel packing structure, a flange flange joint and an internal compression block for limiting and fixing the wedge-shaped bevel packing structure, wherein the T-shaped sealing pressure ring sleeve has an integrally formed sleeve portion and a flange portion, wherein the sleeve portion is sleeved on the inner tube, and the wedge-shaped bevel packing structure and the flange flange joint are respectively compressed and connected to the sleeve portion and the flange portion in the radial direction and the axial direction, and form an axial sealing surface between the sleeve portion and the outer wall of the inner tube and a radial sealing surface between the flange portion and the flange flange joint. The present invention can evenly and widely hold the inner tube, is not likely to cause the inner tube to rupture, and achieves the effect of high-pressure sealing without fracturing the inner tube; and also has the function of being disassembled and cleaning internal blockages, which can solve the problem that the microchannel reactor in the chemical industry cannot withstand high pressure and is difficult to clear after being blocked.

The utility model discloses a treatment system for phenolic waste gas, and relates to the technical field of waste gas treatment systems. The device comprises a structured packing tower, an alkali liquor tank, a sewage treatment unit, a chimney and a connecting pipeline, the structured packing tower is connected with a waste gas connector through a pipeline; the structured packing tower is connected with the chimney after being connected with two groups of fans in parallel through pipelines; a liquid outlet in the bottom of the structured packing tower is communicated with an alkali liquor tank through a pipeline; the side part of the alkali liquor tank is connected with two groups of circulating pumps in parallel through pipelines and then is connected with a sprayer on the upper side in the structured packing tower. According to the utility model, the circulation volume is lower, and the contact area is larger, so that the power and the energy consumption of the required pump are lower, the provided contact area is larger, and a higher removal rate is obtained; open fire is not needed in the system, so that the system is safer and more reliable; two groups of fans, circulating pumps and liquid discharge pumps are used in the system, one group is used, and the other group is standby, so that overhaul and maintenance are facilitated.

The invention relates to the technical field of carbon dioxide capture, in particular to a carbon capture structured filler design and optimization method based on fluid topological optimization, which comprises the following steps: constructing a carbon capture reaction design domain geometric unit, taking a filler basic unit as a core, and setting a fluid inlet and outlet extension section, distinguishing a fluid domain, a solid domain and a transition state between the fluid domain and the solid domain through a continuous material density field, and defining boundary conditions such as a gravitational field matched with an actual absorption tower and adiabatic slippage-free boundary conditions; establishing a polynomial modified topological optimization multi-physics field coupling equation set, introducing a polynomial improved Darcy interpolation function to optimize fluid-solid interface characteristics, and meanwhile, improving numerical stability by combining a filtering method and a projection method; on the basis of the modeling solving platform, a global convergence moving asymptote method is adopted for iterative solving, and a carbon capture filler structure with a fine and complex flow channel is generated; the problems that traditional filler design depends on experience, the design freedom degree is low, and the optimization efficiency is limited can be solved.

The present application relates to a kind of structured packing, mass transfer separation unit, separation method and separation equipment.Structured packing includes a plurality of adjacent wire mesh layers;The wire mesh layer has corrugated structure;The wire mesh layer is obtained by hexagonal weaving of metal wire.Mass transfer separation unit includes liquid distributor, support and structured packing;The liquid distributor is located above the structured packing, and the support is located below the structured packing.The present application utilizes the structural characteristics of hexagonal weaving wire mesh, enhances the wetting effect of liquid on the surface of structured packing, can realize higher separation efficiency under small liquid system, meets separation requirement, while not sacrificing pressure drop, also does not increase additional investment cost.

The utility model provides a packing sealing structure and a screw conveyer, and aims to solve the technical problem that a packing sealing part of an existing screw conveyer is easy to leak. The screw conveyer comprises a packing sealing structure, and the packing sealing structure comprises a sealing seat; the pressing piece is arranged at one end of the sealing seat; an accommodating groove is formed between the pressing piece and the inner side of the sealing seat; the ventilation ring is arranged in the accommodating groove; sealing pieces are arranged at the two ends of the ventilation ring respectively; wherein an annular cavity is formed between the outer wall of the ventilation ring and the inner wall of the sealing seat, and an air inlet communicated with the cavity is formed in the sealing seat; an air ring groove communicated with the cavity is formed in the inner side of the ventilation ring. Through the structure of the graphite packing and the ventilation ring, frequent leakage of the packing seal can be avoided, and the service life of equipment is prolonged, so that the frequency of failure shutdown of the equipment is reduced, the continuous operation of the spiral conveyor is ensured, and meanwhile, the maintenance and purchase cost is saved.

A corrugated structured packing sheet has a combination of corrugations including curves formed in the geometry of the corrugations in the lower edge region of the structured packing sheet and a surface texture on opposite faces of the structured packing sheet in the form of a grid of recessed and raised structures. Each recessed structure is separated from some or all adjacent ones of the recessed structures by a raised structure. The raised structures form rows of peaks and interconnected saddles. Microchannels extend along adjacent ones of the recessed structures and the interconnecting saddles. When used with the curved geometry of the corrugations in the lower edge region, the surface texture results in unexpected performance improvements.

The utility model relates to an emptying tower for a delayed coking device in the technical field of delayed coking devices, which comprises a tower body, a feed port positioned on the side part of the lower section of the tower body, and a reflux inlet positioned on the side part of the upper section of the tower body, and a grating distributor is arranged in the inner cavity of the tower body corresponding to the position between the feed port and the reflux inlet; the grid distributor comprises a plurality of corrugated plates which are connected in sequence, and a plurality of channels which are inclined up and down are formed between every two adjacent corrugated plates; according to the utility model, the grid distributor is formed by the plurality of corrugated plates which are connected in sequence and are provided with the upper and lower inclined channels, so that the gas-liquid contact area is increased, and compared with regular packing in other forms, the grid distributor effectively prevents deposition and blockage of solid particles, and improves the overall operation efficiency.

The utility model discloses a packed tower with a structured packing pore plate, which relates to the technical field of chemical process, and comprises a packed tower main body, two sides of the packed tower main body are provided with stabilizing pieces, the bottom end of the packed tower main body is provided with a support base, the packed tower main body is internally provided with a packing bin, the packing bin is internally provided with a packing plate assembly, and the packing plate assembly is arranged on the packing bin. A sealing assembly is arranged on the side wall of the packed tower main body, and the packing plate assembly is mounted in the packed tower main body through the sealing assembly; according to the structural design of the packed tower with the structured packing pore plate, the dependence on parts such as bolts which are easy to corrode or damage is reduced, so that the maintenance cost and the requirement of frequently replacing the bolts are reduced, the bolts do not need to be frequently used for fixing in the operation process, and the material consumption and the maintenance complexity are reduced.

The invention discloses a catalytic distillation structured packing, a catalytic distillation tower filled with the structured packing and application, the catalytic distillation structured packing comprises a plurality of catalytic zones and separation zones which are alternately arranged, and a silk screen catalyst bag is independently arranged in each catalytic zone; the wire mesh catalyst bag comprises a plurality of columnar catalyst bags which are arranged at intervals in the axial direction. Each separation area independently comprises one or more corrugated packing assemblies, each corrugated packing assembly independently comprises two corrugated packing sheets, and each separation area independently comprises 1-8 corrugated packing assemblies. The catalytic rectification filler has the advantages of high specific surface area, low pressure drop, high adaptability, easiness in amplification and the like, and is beneficial to improving the conversion rate and the separation effect in the butene hydroisomerization rectification process.

This invention belongs to the field of petrochemical technology and relates to a method for processing various liquefied petroleum gases (LPGs) in a product refining unit. The method includes: LPG feedstocks from multiple different production units; simultaneous pressure regulation of several LPGs for mixed feeding; the LPG desulfurization tower in the desulfurization unit using high-efficiency packing, with random packing at the bottom and top and structured packing in the middle to avoid bottom packing blockage; and a three-stage mercaptan removal unit with two-stage water washing of the LPG. Simultaneously, the addition of solid mercaptan removal catalyst is stopped and replaced with liquid desulfurization enhancer, solving the scaling and blockage problem between fiber membrane fibers, significantly improving feedstock adaptability and operational flexibility, ensuring long-term stable operation of the unit and downstream product quality, and achieving a mercaptan content of ≤1 mg / m³ in the refined LPG. 3 .