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251 results about "Moving bed" patented technology

High-value preservation utilization and harmless treatment system and method for waste aluminum

The invention discloses a high-value preservation utilization and harmless treatment system and method for waste aluminum. Comprising the steps of waste aluminum pretreatment (three-dimensional screening and nano bubble cleaning), dynamic paint removal (moving bed partition low-temperature catalytic pyrolysis), smelting, melt deep purification (Ar gas rotary dehydrogenation, ceramic filtration and electromagnetic refining) and aluminum ash resourceful treatment (80 DEG C hydrolysis and ammonia gas and composite salt crystallization recovery). According to the method, the problems of high cost, degraded utilization, environment-friendly defects and incomplete aluminum ash treatment of the existing waste aluminum regeneration raw materials are solved, direct regeneration of 3004 / 5052 and other high-added-value aluminum alloy plate strip foils is realized, and the alloy component deviation is less than or equal to 0.3 wt%; carbon emission is reduced to 0.82 t CO per ton of aluminum, and is reduced by 31% compared with that of traditional secondary aluminum; and the recovery rate of aluminum ash ammonia reaches 92.5%, the purity of the composite salt product is 96.3%, the double targets of high-valued cyclic utilization and harmless treatment of waste aluminum resources are achieved, and the method has remarkable economic, environment-friendly and technical advantages.
Owner:HENAN MINGTAI TECH DEV CO LTD

Method for separating and purifying 4-methyl-1-pentene from mixture containing trans-4-methyl-2-pentene and 1-hexene

A method for separating and purifying 4MP1 from a mixture containing 4MTP2 and 1-Hexene comprises the following steps: continuously introducing a solution in which 4MTP2, 1-Hexene and 4MP1 with any concentration are dissolved into a simulated moving bed chromatography system as a raw material solution, collecting a high-purity 4MP1 solution from raffinate of the simulated moving bed chromatography system by adopting a metal organic framework material as a stationary phase, and separating the high-purity 4MP1 solution from the raffinate of the simulated moving bed chromatography system. The extraction liquid is a solution containing impurities 4MTP2 and 1-Hexene. The invention provides a brand new method for separating 4MP1 from 4MTP2 and 1-Hexene, and a complete separation scheme is provided for the prior art; in the separation of high-concentration 4MP1, the relative purity of the separated and purified 4MP1 can reach gt; the recovery rate is gt; and in the separation of low-concentration 4MP1, the rectification level is also exceeded, and the method is more suitable for 4MP1 thermosensitive substances.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Loess-based hydrogen sulfide adsorbent, preparation method thereof and application of loess-based hydrogen sulfide adsorbent in removal of hydrogen sulfide in natural gas

The invention provides a loess-based hydrogen sulfide adsorbent, a preparation method thereof and application of the loess-based hydrogen sulfide adsorbent in removal of hydrogen sulfide in natural gas. Loess with a specific substance content is taken as a raw material, the material is prepared through pretreatment, modification activation and extrusion molding, and modification activation comprises alkali activation, graphene oxide crosslinking and copper and zinc loading. According to the invention, specific loess is combined with a targeted modification and activation process, so that the porosity and the specific surface area are effectively improved, and a new active phase is formed and endowed with adsorption and catalytic oxidation effects. The prepared adsorbent has the remarkable advantages of low cost, high sulfur capacity, long penetration time, excellent regeneration performance and the like. In a medium-low-temperature dry desulfurization scene, HS (the concentration is reduced to 0.1 ppm or below) in natural gas can be efficiently removed, and the device is particularly suitable for small and medium-sized natural gas purification devices in various process scenes such as a fixed bed and a moving bed, and can also be expanded to various fields such as coal chemical industry, petrochemical industry, biogas purification, environmental protection and the like.
Owner:EASTERN GANSU UNIVERSITY

Method for producing lithium sulfide in a circulating bed reactor

The present invention relates to a process for preparing lithium sulfide (LiS) from lithium hydroxide (LiOH) and hydrogen sulfide (HS), characterized in that the lithium hydroxide is sulfided in a reaction zone (9) comprising at least one moving-bed tubular reactor (9a) with an ascending oscillating spiral configuration, in which the lithium hydroxide (4) circulates countercurrently to an anhydrous gas mixture (10) containing hydrogen sulfide and at least one inert gas.
Owner:EURECAT SA

An integrated moving bed desulfurization device for horizontal boiler system

ActiveCN121243982BThermodynamicsFlue gas
The application discloses a built-in mobile bed desulfurization device for horizontal boiler system. The device is arranged in the high-temperature flue gas in the medium-temperature section of the boiler shell and comprises a multilayer mobile bed steel frame, more than one mobile bed insert is arranged in each layer of the mobile bed frame along the direction of the high-temperature flue gas flow, each mobile bed insert comprises a porous plate made air-permeable shell, a pneumatic conveying feeding port is arranged on the upper section of one side of the shell and is used for conveying granular desulfurizer filler into the air-permeable shell, a by-product discharging screw conveyor is arranged at the bottom of the shell, and a discharging pipe is arranged at the bottom of one side of the shell and corresponds to the by-product discharging screw conveyor. The device can be directly arranged in the horizontal boiler shell, only one set of desulfurizer storage and transportation circulating discharge system needs to be arranged outside the boiler, a desulfurization tower and a bag-type dust collector do not need to be arranged, project land occupation is greatly saved, and construction cost is low.
Owner:HUATIAN NANJING ENG & TECH CORP MCC +1

Preparation method of high-strength polycarbonate resin

The invention relates to the technical field of high polymer material synthesis, in particular to a high-strength polycarbonate resin preparation method which comprises the following steps: 1, designing a fatigue life oriented monomer ratio; step 2, gradient polymerization of phase state perception: raising the temperature to a temperature T1 corresponding to a viscosity change rate threshold in the first stage, and maintaining until the distillation rate of a byproduct reaches a safety critical value; in the second stage, variable-rate cooling is implemented based on real-time cloud point detection, an end-capping reagent is injected at the critical point temperature T2 of terminal hydroxyl concentration, and the injection rate is linked with the pressure change rate of the reaction kettle; 3, amorphous confinement solid phase tackifying: treating the polymer particles in a moving bed dynamic temperature field, wherein the temperature field range is dynamically set according to the difference value between the glass transition temperature Tg and the crystallization starting temperature Tc; and step 4, performing electric field grading relaxation. Through the technical means of multi-stage temperature control, electric field adjustment, magnetic field orientation and the like, the molecular chain structure of the resin is comprehensively optimized, and the reliability of a final product in long-term use is ensured.
Owner:FU ZHOU TIAN LI HE XIN CAI LIAO KE JI YOU XIAN GONG SI

Intelligent steel slag granulation production system and production cooling method

The invention discloses an intelligent steel slag granulation production system and a production cooling method, and belongs to the technical field of steel slag treatment.The intelligent steel slag granulation production system and the production cooling method are characterized in that the intelligent steel slag granulation production system comprises a production module, a monitoring module, an intelligent analysis module and a dynamic control module; the production module comprises a closed cover, a tipping machine, a granulating bed, a granulating machine and a spraying structure; the production cooling method comprises the steps that a slag tank containing molten steel slag is placed on the tipping machine, the tipping device pours the steel slag on the moving bed, the moving bed conducts reciprocating rectilinear motion to lay the steel slag, the granulation roller conducts forward and reverse rotation motion to cool and crush the steel slag, the monitoring module collects data, and the intelligent analysis module analyzes the data to generate an adjusting instruction. And the dynamic control module executes an adjusting instruction, so that the effects of monitoring the steel slag production process in real time, accurately regulating and controlling spraying and equipment operation according to the steel slag temperature and position, efficiently cooling and guaranteeing production are achieved.
Owner:BEIJING TANLONG ENVIRONMENTAL TECH CO LTD

A system and method for synergistic photocatalytic co-pyrolysis of marine organic solid waste

The application discloses a kind of photothermal synergic catalysis co-pyrolysis system and method of marine organic solid waste, method includes the following steps: waste fishing net, plastic garbage and seaweed are crushed and mixed uniformly according to mass ratio (2-4):(3-5):(1-3);Mixed material and multifunctional composite photocatalyst prepared by seaweed are sent into moving bed reactor according to mass ratio (10-20):1, under the condition of concentrated solar energy leading, electric heating auxiliary, continuous co-pyrolysis is carried out;Pyrolysis product is separated by three-stage condensation to obtain heavy oil, light oil, water and gas.The method realizes the green cycle of "waste treatment", the catalyst cost is low, the degree of system intelligence is high, and provides an efficient, environmentally friendly, economically feasible innovative path for the resource utilization of marine organic solid waste.
Owner:RES INST OF ZHEJIANG UNIV TAIZHOU

Movable bed body for adding bed in hotel

The utility model belongs to the technical field of additionally arranging beds in hotels, and particularly relates to a movable bed body for additionally arranging beds in hotels, which comprises a base plate, a backrest plate, a connecting structure and a roller structure, the backrest plate is detachably fixed to the bed head end of the base plate through the connecting structure, the backrest plate is made of solid wood, the side face, close to the base plate, of the backrest plate is covered with a second soft cushion layer, and the idler wheel structure comprises universal wheels arranged on the side face, away from the base plate, of the backrest plate. The base plate and the backrest plate are made of solid wood plates, the overall mass is increased, the wood material face of the base plate is shielded and covered with the first soft cushion layer, the texture of the bed body is improved, the backrest plate is shielded and covered with the first soft cushion layer, a user is prevented from touching hard materials in the using process, and the use experience of the user is improved.
Owner:RESTONIC CHINA FURNITURE

A method for liquid-phase adsorption separation and purification of 2,3-dichloronitrobenzene and 3,4-dichloronitrobenzene

ActiveCN117820123BMolecular sieveFluid phase
This invention relates to a method for the liquid-phase adsorption separation and purification of 2,3-dichloronitrobenzene and 3,4-dichloronitrobenzene, belonging to the field of chemical separation. This method for the simultaneous separation and purification of 2,3-dichloronitrobenzene and 3,4-dichloronitrobenzene involves preparing small spherical molecular sieve adsorbents from USY molecular sieves, silicon coupling agent-modified illite, and biomass polysaccharides, which are then loaded into a countercurrent simulated moving bed for separation and purification. This method can simultaneously obtain 2,3-dichloronitrobenzene and 3,4-dichloronitrobenzene with a purity ≥99%. The separation and purification method adopted in this invention is not only energy-efficient and highly effective, but also enables continuous production of two high-purity dichloronitrobenzenes, possessing significant industrial application value.
Owner:CHINA CATALYST HLDG CO LTD

Process method for selective deep desulfurization and denitrification of aromatic-rich fraction

The invention discloses a process method for selective deep desulfurization and denitrification of aromatic-rich fractions. The process method comprises the following steps: (1) mixing aromatic-rich diesel oil with hydrogen, and then feeding the mixture into a pre-hydrogenation reaction zone I for pre-hydrogenation dealkene reaction; (2) a product obtained in the step (1) enters a hydrofining reaction zone II for a hydrofining desulfurization and denitrification reaction; (3) carrying out flash evaporation on the product obtained in the step (2) to separate recycle hydrogen, enabling the obtained refined diesel oil to enter a moving bed adsorption denitrification reaction zone III, and carrying out deep adsorption denitrification reaction on the refined diesel oil under the action of an adsorption denitrification agent to obtain a desulfurized and denitrified refined aromatic-rich diesel oil component; and (4) enabling the inactivated adsorption denitrification agent in the step (3) to enter an adsorbent regeneration area IV, and completing reduction and drying of the inactivated adsorption denitrification agent under the action of a desorption agent to obtain the cyclically regenerated adsorption denitrification agent. According to the process method, deep removal of the sulfur-containing nitrogen-containing compound can be realized, and the investment cost is also greatly reduced.
Owner:PETROCHINA CO LTD +1

An apparatus and method for directly capturing carbon dioxide from the air and recovering the capture liquid.

This invention relates to the field of carbon dioxide capture technology, and particularly to an apparatus and method for directly capturing carbon dioxide from the air and recovering the capture liquid. The invention utilizes a thin-layer moving bed to spray droplets of a lean capture liquid and achieve carbon dioxide capture through air convection. When the carbonate concentration in the capture liquid reaches a certain value, it is defined as a rich capture liquid. The lean capture liquid is recovered using an electrolytic process. A specific structure and connection relationship achieve good interaction, enabling efficient, rapid, low-energy, and controllable absorption of carbon dioxide from the air under low partial pressure (440–460 ppm). This achieves high-efficiency, large-scale carbon dioxide capture and allows for continuous production of high-purity hydrogen and carbon dioxide products. The capture liquid is reused, realizing an integrated capture and desorption system design. Using 0.5 MkOH as the lean capture liquid, a 600m³… 3 Under the condition of / h induced draft, it is converted into a rich liquid after 13h, and the average CO2 concentration at the outlet is 380ppm, which is 80ppm lower than the CO2 concentration in the inlet air.
Owner:SOUTHEAST UNIV

Continuous moving bed automatic control system capable of accurately controlling flow inlet and outlet based on PID (Proportion Integration Differentiation) algorithm

The invention belongs to the technical field of chemical engineering and environment-friendly separation engineering, and discloses a continuous moving bed automatic control system for accurately controlling flow inlet and outlet based on a PID algorithm. Comprising an area identification module, a PID parameter dynamic switching module, a multivariable cooperative control module, a feedforward compensation module and a flow regulation execution unit, all algorithms are solidified and run in the same PLC kernel, and through three core technology innovations of partition PID control, multivariable cooperative control and a composite anti-interference strategy, the flow regulation performance is improved. The problems that a traditional continuous moving bed system is low in flow control precision, slow in response, weak in anti-interference capacity and the like are solved. The accuracy of flow control is improved, and the requirement of human intervention is reduced; and through automatic adjustment, the production efficiency is effectively improved. The failure rate is reduced; the system is high in response speed and can adapt to flow change in real time, and the automation level of the industrial production process is improved.
Owner:TIANJIN UNIV OF SCI & TECH +2

Automatic feeding device for flue gas moving bed dry desulfurization calcium-based desulfurizing agent

The utility model discloses an automatic feeding device for a flue gas moving bed dry desulfurization calcium-based desulfurizing agent, which relates to the technical field of desulfurization equipment and comprises a stock bin and an elevator which are mounted on one side of a desulfurization bin, a discharge port of the stock bin is communicated with a feed port of the elevator, and a discharge port of the elevator is communicated with a chute three-way distributor; a second belt conveyor and a third belt conveyor which are arranged in parallel and a first belt conveyor connected with the second belt conveyor are mounted at the top of the desulfurization bin, and two discharge ports of the chute three-way distributor are respectively communicated with the first belt conveyor and the third belt conveyor; the second belt conveyor and the third belt conveyor are each provided with a discharging opening communicated with a desulfurizing agent feeding opening of the desulfurizing bin. According to the utility model, the desulfurizing agent can be automatically added, the labor intensity of workers is low, the number of personnel allocation is small, the adding amount is accurate, and the utilization rate of the desulfurizing agent is improved while the desulfurization rate is ensured.
Owner:山东盛宝传热科技有限公司

A low-loss transmission dense moving bed apparatus and a method for operating the same

The present application provides a kind of low-loss transmission dense moving bed device and its operating method, including adsorption tank, regeneration tower and displacement cleaning tank, adsorption tank, regeneration tower and displacement cleaning tank use the moving bed operation mode of lower liquid inlet upper liquid outlet, and the top of at least two of adsorption tank, regeneration tower and displacement cleaning tank is provided with gas inlet, by inputting gas with pressure, for resin delivery provides downward power, and the transfer of resin is optimized from gravity discharge to gravity+power dual-action discharge, so that resin transfer delivery is stable, not easy to block;Can not need additional transport water.Additionally, resin breakage problem caused by high-speed impact, mechanical collision and other factors can be avoided from the root;Realize low-loss transmission.
Owner:FUJIAN LONGKING CO LTD

Process for the preparation of phenol by oxidation of benzene with n2o in a moving bed reactor

The application provides a method for preparing phenol by oxidizing benzene with N2O in a mobile bed reactor, which comprises: the mobile bed reactor comprises a movable part and at least three catalyst fixed beds which are fixed on the movable part and can switch positions with the movement of the movable part; the at least three catalyst fixed beds are divided into a reaction zone, a regeneration zone and a standby zone; the conveying pipeline of N2O and benzene is communicated with the catalyst fixed bed of the reaction zone, and N2O and benzene are introduced into the catalyst fixed bed of the reaction zone to carry out an oxidation reaction to prepare phenol; after the oxidation reaction is completed, the movable part is moved to disconnect the conveying pipeline of N2O and benzene from the reacted reaction zone and to communicate the conveying pipeline of N2O and benzene with the catalyst fixed bed of the standby zone, and the oxidation reaction is continuously carried out; meanwhile, the regeneration pipeline is communicated with the reacted reaction zone to carry out catalyst regeneration. The catalyst has a long service life, the reaction can be continuously carried out, the process flow is simple, and the method has a good application prospect.
Owner:JIANGSU YANGNONG CHEMICAL GROUP CO LTD

Reactor and method for pyrolyzing hydrocarbon-containing fluids

The invention relates to a reactor (1) at least for pyrolyzing a hydrocarbon-containing fluid at least for producing an at least hydrogen-containing fluid, comprising a reactor housing (2) and a reactor space (3) arranged inside the reactor housing (2), the reactor (1) having a reactor top (4) and a reactor bottom (5), the reactor top (4) and the reactor bottom (5) each have a supply opening (6) and an outlet opening (7), which can be closed at least intermittently and through which at least fluids or solids, in particular particles, can be introduced or discharged, in order to produce the moving bed (8), particles are introduced into the reactor space (3) at least intermittently and continuously through the reactor top (4). In a reactor capable of preventing an electrical heat input from being unstable in a methane pyrolysis process for producing hydrogen and pyrolytic carbon, provision is made for a plurality of conical components (9) to be arranged in the reactor space (3), each conical component (9) being hollow and having an input opening (10) and an output opening (11), and the diameter of the input opening (10) being larger than the diameter of the output opening (11).
Owner:THYSSENKRUPP UHDE GMBH +1

Hydrogen production system and method using biomass double moving bed gasification

The application discloses a biomass double-moving-bed gasification hydrogen production system and method, and relates to the field of biomass hydrogen production technology. The system comprises a feeding unit for providing and continuously feeding pretreated large-size high-density biomass raw materials mixed with biochar containing alkali metal oxides and salts thereof; a microwave pyrolysis unit comprising a microwave heating cavity and a conveying screw, which is used for receiving the biomass raw materials from the feeding unit, and performing microwave pyrolysis on the biomass raw materials while the biomass raw materials are pushed and moved in the microwave heating cavity; the microwave heating cavity is provided with a washing gas channel for radial circumferential injection; a combustion gasification unit arranged at the lower part of the microwave pyrolysis unit and receiving gaseous volatile components and solid biochar from the microwave pyrolysis unit; the combustion gasification unit is provided with a throat combustion zone and a gasification zone. The application can effectively improve the biomass pyrolysis efficiency, enhance the lightness of pyrolysis products, reduce hydrogen loss caused by combustion, significantly improve the hydrogen production yield, improve the tar removal intensity of combustion gasification, and create better conditions for obtaining a final hydrogen product with higher quality.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

A device and method for treating brewing wastewater.

This invention discloses a treatment device and method for brewing wastewater. The treatment device includes: a bar screen, a sedimentation tank, an equalization tank, a coagulation sedimentation tank, a first intermediate water tank, an anaerobic reactor, a second intermediate water tank, a pure membrane aerobic biofilm coupled granular sludge reactor, a third intermediate water tank, and an ozone oxidation tank. The pure membrane aerobic biofilm coupled granular sludge reactor is equipped with a pure membrane moving bed biofilm reaction zone, a water and gas distribution zone, and a granular sludge reaction zone. The granular sludge reaction zone is further divided into an aerobic granular sludge reaction zone and an anaerobic granular sludge reaction zone. The physical space of the aerobic and anaerobic granular sludge reaction zones is controlled by a reaction zone space control unit. This invention can simultaneously perform aerobic and anaerobic biological treatment of wastewater and can flexibly control the physical space of the sludge reaction zone, greatly shortening the biological treatment process of brewing wastewater and significantly improving the reactor's adaptability to changes in wastewater characteristics, thereby enhancing the wastewater treatment effect.
Owner:MOUTAI INST +1

Tire oil hydrofining method

The invention belongs to the technical field of tire oil treatment, and particularly relates to a tire oil hydrofining method. The method comprises the following steps: mixing tire oil with a cosolvent, and preheating and pressurizing together with hydrogen to form a supercritical feed flow; enabling the feed flow to enter a countercurrent moving bed reactor from the bottom, carrying out countercurrent contact reaction on the feed flow and hydrogenation catalyst microspheres added from the top, and simultaneously separating and removing hydrogen sulfide and ammonia generated by the reaction in situ by utilizing a membrane separation assembly positioned at the middle upper part of the reactor; a reaction product is separated to obtain a refined oil product, and the refined oil product is recycled after gas-phase purification; and the deactivated catalyst is regenerated and then returns to the system for recycling. Through the synergistic effect of the supercritical condition, the countercurrent moving bed, the in-situ membrane separation and the special catalyst, the technical problems of easy poisoning and coking of the catalyst, insufficient reaction depth and short operation period in the traditional process are effectively solved, and efficient, stable and deep refining of the tire oil is realized.
Owner:SHANDONG AOHUA ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Growth type multifunctional baby crib

ActiveCN224251065USolve the problem of unsustainable useExtend the life cycleTableKids bedsFixed bedMoving bed
The utility model discloses a growth type multifunctional baby crib, relates to the technical field of baby cribs, and aims to solve the technical problems that the structure of the current baby crib is inconvenient to efficiently adjust to cope with the space and the use scene, and the current baby crib is inconvenient to adapt to the demand change in the growth process from a baby to a child, so that the product is easy to be idle and is eliminated too early. Comprising a fence module, a bed frame module arranged in the fence module and a bed body module arranged on the bed frame module, the fence module comprises a shielding fence, the bed frame module comprises a bearing bed frame and a telescopic hinge sliding rail shade, and the telescopic hinge sliding rail shade comprises a fixed part and a telescopic part. The bed body module comprises a movable bed board, a fixed bed board, an expansion bed board and a hinge sliding rail. The baby crib has the advantages that the length and the height of the baby crib can be adjusted, the baby crib can continuously change along with the growth of a baby, the growth requirement of the baby from birth to school age is met, and higher economical efficiency and practicability are provided for family users.
Owner:GUANGZHOU VOCATIONAL COLLEGE OF SCI & TECH

Particle beam therapy device and mobile bed

The objective is to provide a particle beam therapy device and a mobile bed that can stably drive the mobile bed. [Solution] The movable floor 35 performs either a first movement in one direction D1 in the direction of movement, or a second movement in the other direction D2. As a result, the movable floor 35 can move to both sides in the direction of movement in accordance with the movement of the irradiation unit 3. Here, in both the first and second movements, the length of the portion of the movable floor 35 that moves by traction is longer than the length of the portion of the movable floor 35 that moves by extrusion. That is, regardless of whether the movable floor 35 moves to the direction D1 or D2, the portion of the movable floor 35 that moves by traction, which is more stable, can be made longer than the portion that moves by extrusion.
Owner:SUMITOMO HEAVY IND LTD

Seat provided with a bed extension with improved deployment kinematics

The invention relates to a seat unit (100) comprising: - a seat (10), - an ottoman (19), - a bed extension (17) comprising a first bed extension portion (17.1) and a second bed extension portion (17.2), - a device (18) for moving the bed extension (17), - the first bed extension portion (17.1) and the second bed extension portion (17.2) extending one behind the other in two distinct vertical planes when the bed extension (17) is in the stored position, - the first bed extension portion (17.1) and the second bed extension portion (17.2) extending next to one another in the same substantially horizontal plane and in an extension of the squab (13) and of the ottoman (19) when the bed extension (17) is in the deployed position, so as to fill a space between the squab (13) and the ottoman (19). Drawing_references_to_be_translated:
Owner:SAFRAN SEATS

Moving bed river model terrain fine trimming forming device

The invention discloses a moving bed river model terrain fine trimming forming device which comprises a left high-precision track and a right high-precision track which are parallel and laid on a leveled model sand field, and the length direction of the left high-precision track and the length direction of the right high-precision track are the front-back direction. And the left high-precision track and the right high-precision track are provided with a three-dimensional rotary-cutting compaction system capable of moving in the front-back direction, the left-right direction and the vertical direction. The terrain making automation of the moving bed river model can be realized through the control system, the terrain making process can be effectively simplified, and the efficiency is improved; based on the equipment, according to the three-dimensional digital elevation information, the elevation precision of terrain making is controlled through automatic equipment, high-precision making of the terrain can be achieved within the whole range of the model, and the precision of terrain making of the moving bed river model is effectively improved.
Owner:YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION

Dry flue gas desulfurization equipment and method based on simulated moving bed

The invention discloses equipment and a method for dry flue gas desulfurization based on a simulated moving bed, an adsorption tower and a regeneration double-tower process of traditional dry flue gas desulfurization are combined into a single module unit adsorption regeneration tower process, the tower is composed of a plurality of module units with the same function, and the module units are similar in structure, are arranged in parallel and are mutually independent. And a program control valve group is adopted for orderly switching the working process, so that efficient coupling among the multi-module units, the heating medium circulating system, the refrigerant circulating system and the carrier gas injection system in the tower is realized, and a continuously matched adsorption regeneration process among the multi-module units is realized. The process trend of a gas phase is periodically changed through a program control valve group, meanwhile, an adsorbent is kept still in situ, the effect of simulating a moving bed by a fixed bed is achieved, the solid adsorbent in the whole process is free of dynamic transfer and abrasion, the fixed bed can keep a good filling state, the gas phase is uniformly distributed in a bed layer, and the product quality is stable; and large handling capacity and automatic operation can be conveniently realized.
Owner:SINOPEC GUANGZHOU ENG CO LTD

Simulated moving bed extraction of lithium by adsorption, with extract recycling

Process and device for simulated moving bed extraction of lithium by adsorption, in which at least one column (Ci) is supplied with a feed (F) comprising lithium and a desorbent (D), and an extract (E) and a raffinate (R) are withdrawn from the column. The column comprises an adsorbent solid (Ai) and is configured to operate in a closed loop. The supply and withdrawal points of the column are shifted over time by a value corresponding to a predetermined quantity of adsorbent solid with a permutation period and determine a plurality of operating zones of the column, in particular the following main zones: a lithium desorption zone I; a desorption zone II of compounds other than lithium; and a lithium adsorption zone III. According to the invention, a portion of the extract is recycled to the feed.
Owner:IFP ENERGIES NOUVELLES

Bed transfer assistance device

The present invention provides a bed movement assistance device that reduces the load applied to the bed due to fluctuations in the movement surface. [Solution] The bed moving assist device (1) is a bed moving assist device that assists in moving a bed. The bed moving assist device (1) comprises a drive wheel (4), a support frame (3) that supports the drive wheel (4), a connecting mechanism (7) that connects to the bed, and a linear guide mechanism (6) that connects the support frame (3) and the connecting mechanism (7) so that they can move relative to each other in the vertical direction.
Owner:TSUBAKIMOTO CHAIN CO

Chlorine-containing pyrolysis oil radial moving bed reaction adsorption dechlorination hydro-conversion method

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.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

System and method for continuous gas adsorbate capture using adsorption / regeneration cycle

PendingUS20260249233A1ThermodynamicsProcess engineering
A system for gas adsorbate capture has an adsorption reactor(s) configured for receiving an adsorbate gas flow. A regeneration reactor(s) is configured for receiving a regenerative fluid flow. A plurality of individual sorbent cells are in a generally continuous cycle between the adsorption reactor and the regeneration reactor. A group of the individual sorbent cells may form an adsorption moving bed in the adsorption reactor to capture the adsorbate from the gas flow.
Owner:SCOPRA SCI & GENIE SEC

Process for the separation of spirodiphenols by simulated moving bed chromatography

The application discloses a method for separating spirodiphenol by using an analog moving bed chromatography. The method for separating spirodiphenol specifically disclosed comprises the following steps: separating left-handed spirodiphenol and right-handed spirodiphenol from a spirodiphenol racemate by using an analog moving bed chromatography system; and the analog moving bed chromatography system has the following conditions: a stationary phase: silica gel coated with chiral polymer; and a mobile phase: a mixed solution of n-hexane and ethanol. The application can realize complete separation of two single enantiomers, obtain high purity and high recovery rate, and is more suitable for industrial production while being continuously operated. The process has strong stability, constant product quality, high automation degree, higher yield and lower cost than batch chromatography. The method also has the advantages of high yield, low cost, recyclable elution phase, green environmental protection, automatic and continuous production, stable product quality and the like.
Owner:DAICEL CHIRAL TECH (CHINA) CO LTD