WO2022040831A1 - Candle-type low pressure drop particle packed bed reactor - Google Patents

Candle-type low pressure drop particle packed bed reactor Download PDF

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WO2022040831A1
WO2022040831A1 PCT/CN2020/110673 CN2020110673W WO2022040831A1 WO 2022040831 A1 WO2022040831 A1 WO 2022040831A1 CN 2020110673 W CN2020110673 W CN 2020110673W WO 2022040831 A1 WO2022040831 A1 WO 2022040831A1
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pressure drop
candle
packed bed
reactor
low pressure
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PCT/CN2020/110673
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French (fr)
Chinese (zh)
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杨柳喜
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南京溧水高新创业投资管理有限公司
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Priority to PCT/CN2020/110673 priority Critical patent/WO2022040831A1/en
Publication of WO2022040831A1 publication Critical patent/WO2022040831A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds

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  • the invention belongs to the technical field of packed bed reactors, and in particular relates to a candle type low pressure drop particle packed bed reactor.
  • a packed bed reactor refers to a reactor filled with solid catalysts, adsorbents or solid reactants to realize a heterogeneous reaction process.
  • the solids are usually granular, with a particle size of about 2 to 15 mm, and are stacked into a bed of a certain height. The bed is stationary and the fluid passes through the bed to react. The difference between it and the fluidized bed reactor and the moving bed reactor is that the solid particles are in a static state.
  • Packed bed reactors are mainly used to realize gas-solid phase catalytic reactions, such as ammonia synthesis towers, sulfur dioxide contact oxidizers, hydrocarbon steam reformers, etc. When used for gas-solid phase or liquid-solid phase non-catalytic reaction, the bed is filled with solid reactants.
  • the packed bed reactor is filled with quartz wool, quartz sand (or ceramic balls) and catalyst, and the particle size of quartz sand (or ceramic balls) is generally between 10-60 mesh.
  • the catalyst is easily pulverized into powder with a particle size of about 200 mesh.
  • the catalyst powder and a very small amount of quartz sand (or ceramic balls) and The generated carbon deposits will be blown to the rear system of the device by the airflow, which will easily cause the blockage of the system pipeline. After the pipeline is blocked, the system pressure will rise sharply, and the product composition will also change with the reaction pressure.
  • CN208302729U provides an anti-clogging packed bed reactor
  • the packed bed reactor can filter out catalyst powder and quartz sand particles mixed in the gas flow, and prevent the blockage of the subsequent pipeline system.
  • the packed bed reactor is sequentially provided with a feed area, a catalyst bed area for setting the catalyst bed, and a discharge area from top to bottom, the feed area is provided with a feed port, and the discharge area is provided with
  • a quartz wool layer and a filter screen layer are sequentially arranged at the bottom of the catalyst bed zone from top to bottom.
  • the filter screen layer is a wire mesh layer.
  • the mesh aperture of the filter screen layer is 100-300 meshes.
  • the mesh aperture of the quartz wool layer is 100-300 meshes.
  • the catalyst bed provided in the catalyst bed zone includes a first layer, a catalyst layer and a third layer in order from top to bottom; the first layer is a quartz sand layer or a ceramic ball layer, and the third layer For the quartz sand layer or ceramic ball layer.
  • a support member is further provided at the bottom of the catalyst bed zone; the support member is located at the lower part of the filter screen layer and is fixed on the inner wall of the packed bed reactor for supporting the catalyst bed layer Area.
  • the support member is a grid plate.
  • the aspect ratio of the catalyst layer is (1-2):1.
  • the aspect ratio of the first layer is (0.1-0.3):1.
  • the aspect ratio of the third layer is (0.1-0.3):1.
  • the present invention provides a candle-type low pressure drop particle packed bed reactor.
  • the invention adopts a particle adsorption catalytic reactor structure with low pressure drop and can be replaced online.
  • particles or other forms of catalysts are filled in the interlayer to prepare a catalyst with a certain wall.
  • Thick filter tube modules Under the premise of the same space velocity and gas processing capacity, the accumulation of catalysts in a single reactor is divided into multiple penetrating micro-miniature reaction modules, and finally the matching of pressure drop and reaction efficiency in the process of atmospheric processing is realized, and the space utilization rate is improved.
  • the catalytic adsorbent module of each chamber can be replaced online or regenerated, which realizes the continuous and stable production operation.
  • the present invention adopts the following technical solutions:
  • a candle-type low-pressure drop particle packed bed reactor comprising a secondary reaction device, the secondary reaction device is provided with a flower plate, and one or more primary micro-miniature catalytic adsorption reactor modules are sealed with the flower plate. ; Catalytic adsorption material is filled in the first-stage micro-miniature catalytic adsorption reactor module.
  • the gas or liquid to be treated enters through the inlet of the secondary reaction device, passes through the catalytic adsorption material in one or more first-stage micro-miniature catalytic adsorption reactor modules, and collects gas from the interior of the catalytic adsorption material and then communicates with the secondary reaction device.
  • the outlet of the gas is connected to realize the catalytic and adsorption purification of the gas.
  • the first-stage micro-miniature catalytic adsorption reactor module is fixedly and sealedly connected to the flower plate through a flange.
  • the candle-type low pressure drop particle packed bed reactor is a parallel system comprising a plurality of the secondary reaction devices.
  • the shape of the catalytic adsorption material is granular or fibrous.
  • the catalytic adsorption material is uniformly packed and placed in the first-stage micro-miniature catalytic adsorption reactor module.
  • the first-stage micro-miniature catalytic adsorption reactor module is provided with a fixed grid, and the fixed grid is used for placing the catalytic adsorption material.
  • the first-stage micro-miniature catalytic adsorption reactor module is a tubular reactor.
  • the secondary reaction device is provided with an inlet with a filter port.
  • the parallel system of the secondary reaction device is connected in parallel with the reaction gas inlet, and the reaction gas inlet is provided with a filter device.
  • each secondary reaction device inlet of the parallel system of the secondary reaction devices is provided with an independent valve.
  • a single first-level micro-miniature catalytic adsorption reactor module is formed, and the micro-module is hoisted in the candle-type reactor to form a secondary reaction device , after connecting multiple secondary reaction devices in parallel, an integrated bulk gas processing unit is formed.
  • a large number of catalytic adsorption materials are filled into several micro-miniature modules, which greatly simplifies the replacement of catalytic adsorption materials; and through the candle-type reactor structure, the contact area of the gas is increased in a limited area, and the same Under the condition of space velocity, the velocity of the gas contact surface is greatly reduced, thereby reducing the pressure drop of the system; and through the parallel connection of multiple candle reactors, a single reactor can be individually controlled without shutting down the system. Regenerate or replace the micro-miniature modules in the reactor, so as to achieve the effect of low pressure drop and regeneration of the system, which is beneficial to large-scale industrial production applications.
  • the invention adopts a particle adsorption catalytic reactor structure with low pressure drop and can be replaced online, and fills particles or other forms of catalyst in the interlayer to prepare a filter tube module with a certain wall thickness.
  • the accumulation of catalysts in a single reactor is divided into multiple penetrating micro-miniature reaction modules, and finally the matching of pressure drop and reaction efficiency in the process of atmospheric processing is realized, and the space utilization rate is improved.
  • the catalytic adsorbent module of each chamber can be replaced online or regenerated, which realizes the continuous and stable production operation.
  • FIG. 1 is a schematic diagram of a parallel system of multiple secondary reaction units of a candle type low pressure drop particle packed bed reactor of the present invention
  • FIG. 3 is a schematic structural diagram of a first-stage micro-miniature catalytic adsorption reactor module of the present invention.
  • a candle-type low pressure drop particle packed bed reactor includes a plurality of parallel secondary reaction devices.
  • the granular catalytic adsorption material is uniformly filled in the first-level micro-catalytic adsorption reactor module, the second-level reaction device is provided with a flower plate 1, and a plurality of first-level micro-miniature catalytic adsorption reactor modules 2 are fixedly sealed with the flower plate. connect;
  • the gas to be treated enters through the inlet 3 of the secondary reaction device, passes through the catalytic adsorption material in one or more first-stage micro-miniature catalytic adsorption reactor modules, and is collected from the interior of the catalytic adsorption material with the secondary reaction device.
  • the outlet 4 is connected to realize the catalytic and adsorption purification of the gas.
  • the first-stage micro-miniature catalytic adsorption reactor module is fixedly and sealedly connected to the flower plate through a flange.
  • the candle type low pressure drop particle packed bed reactor is a parallel system comprising a plurality of the secondary reaction devices.
  • the shape of the catalytic adsorption material is granular or fibrous.
  • the first-stage micro-miniature catalytic adsorption reactor module is provided with a fixed grid, and the fixed grid is used for placing the catalytic adsorption material.
  • the first-stage micro-miniature catalytic adsorption reactor module is a tubular reactor.
  • the secondary reaction device is provided with an inlet with a filter port.
  • the parallel system of the secondary reaction device is connected in parallel with the reaction gas inlet, and the reaction gas inlet is provided with a filter device.
  • Each inlet of the secondary reaction device of the parallel system of the secondary reaction devices is provided with an independent valve.
  • a single first-level micro-miniature catalytic adsorption reactor module is formed, and the micro-module is hoisted in the candle-type reactor to form a secondary reaction device , after connecting multiple secondary reaction devices in parallel, an integrated bulk gas processing unit is formed.
  • a large number of catalytic adsorption materials are filled into several micro-miniature modules, which simplifies the replacement of catalytic adsorption materials; and through the candle-type reactor structure, the contact area of the gas is increased on a limited floor area, and the same space is used.
  • the invention adopts a particle adsorption catalytic reactor structure with low pressure drop and can be replaced online, and fills particles or other forms of catalyst in the interlayer to prepare a filter tube module with a certain wall thickness.
  • the accumulation of catalysts in a single reactor is divided into multiple penetrating micro-miniature reaction modules, and finally the matching of pressure drop and reaction efficiency in the process of atmospheric processing is realized, and the space utilization rate is improved.
  • the catalytic adsorbent module of each chamber can be replaced online or regenerated, which realizes the continuous and stable production operation.

Abstract

Provided in the present invention is a CANDLE-type low pressure drop particle packed bed reactor, comprising a secondary reaction apparatus. A diamond plate is provided in the secondary reactor. One or more primary miniature catalytic adsorption reactor modules are fixedly and sealedly docked with the diamond plate. A catalytic adsorption material is filled in the primary miniature catalytic adsorption reactor module. The present invention employs a low pressure drop and online replaceable particle adsorption catalytic reactor structure, fills a catalyst in the form of particles or otherwise into a sandwiched layer, and manufactures a filter-type module having a certain wall thickness. Insofar as the space velocity and gas processing volume remain unchanged, the accumulation of the catalyst in a single reactor is separated into multiple flow-through miniature reaction modules, a match between a pressure drop during a large gas volume treatment process and the reaction efficiency is ultimately implemented, and space utilization rate is increased. Moreover, by utilizing a compartmentalization principle, catalytic adsorption modules of each cavity can be replaced online or regenerated, thus implementing the continuity and stability of a production operation.

Description

一种烛式低压降颗粒填充床反应器A candle type low pressure drop particle packed bed reactor 技术领域technical field
本发明属于填充床反应器技术领域，具体涉及一种烛式低压降颗粒填充床反应器。The invention belongs to the technical field of packed bed reactors, and in particular relates to a candle type low pressure drop particle packed bed reactor.
背景技术Background technique
填充床反应器，是指装填有固体催化剂、吸附剂或固体反应物用以实现多相反应过程的一种反应器。固体物通常呈颗粒状，粒径2～15mm左右，堆积成一定高度的床层。床层静止不动，流体通过床层进行反应。它与流化床反应器及移动床反应器的区别在于固体颗粒处于静止状态。填充床反应器主要用于实现气固相催化反应，如氨合成塔、二氧化硫接触氧化器、烃类蒸汽转化炉等。用于气固相或液固相非催化反应时，床层则填装固体反应物。A packed bed reactor refers to a reactor filled with solid catalysts, adsorbents or solid reactants to realize a heterogeneous reaction process. The solids are usually granular, with a particle size of about 2 to 15 mm, and are stacked into a bed of a certain height. The bed is stationary and the fluid passes through the bed to react. The difference between it and the fluidized bed reactor and the moving bed reactor is that the solid particles are in a static state. Packed bed reactors are mainly used to realize gas-solid phase catalytic reactions, such as ammonia synthesis towers, sulfur dioxide contact oxidizers, hydrocarbon steam reformers, etc. When used for gas-solid phase or liquid-solid phase non-catalytic reaction, the bed is filled with solid reactants.
现有的填充床反应器，通常以颗粒状的催化剂或吸附剂固定填充，对气体或液体中的物质进行吸附或是催化转化，操作过程中催化剂不能更换。特别是对于大宗的气体处理，这种填充方式不仅造成整个过程压降大、而且对于失效吸附催化产品难以实现在线更换。Existing packed bed reactors are usually filled with granular catalysts or adsorbents to adsorb or catalytically convert substances in gas or liquid, and the catalyst cannot be replaced during the operation. Especially for bulk gas treatment, this filling method not only causes a large pressure drop in the whole process, but also makes it difficult to realize online replacement of the expired adsorption catalytic products.
在催化剂性能评价实验中，填充床反应器内装填有石英棉、石英砂(或瓷球)和催化剂，石英砂(或瓷球)的粒径一般在10-60目之间。在装置长周期连续运转过程中，催化剂易粉化为粒径为200目左右的粉末，在高空速进料气流及载气气流的冲击下，催化剂粉末和极少量石英砂(或瓷球)及生成的积炭会被气流吹至装置的后***，极易造成***管路堵塞，管路堵塞后，***压力骤升，产物组成也会随反应压力发生变化。尤其是在高空速进料条件下，评价装置后***堵塞现象发生频繁，严重时还会造成色谱定量环的堵塞，使色谱无法正常采样，需要停止进料疏通管路，影响实验的正常开展。In the catalyst performance evaluation experiment, the packed bed reactor is filled with quartz wool, quartz sand (or ceramic balls) and catalyst, and the particle size of quartz sand (or ceramic balls) is generally between 10-60 mesh. During the long-term continuous operation of the device, the catalyst is easily pulverized into powder with a particle size of about 200 mesh. Under the impact of the high space velocity feed gas flow and the carrier gas flow, the catalyst powder and a very small amount of quartz sand (or ceramic balls) and The generated carbon deposits will be blown to the rear system of the device by the airflow, which will easily cause the blockage of the system pipeline. After the pipeline is blocked, the system pressure will rise sharply, and the product composition will also change with the reaction pressure. Especially under the condition of high space velocity feeding, the blockage of the system after the evaluation device occurs frequently, and in severe cases, it will cause the blockage of the chromatographic quantitative loop, so that the chromatography cannot be sampled normally, and it is necessary to stop the feeding to clear the pipeline, which affects the normal development of the experiment.
例如，CN208302729U提供了一种防堵塞的填充床反应器，该填充床反应器能够滤除气流中夹杂的催化剂粉末和石英砂颗粒，防止后续管路***的堵塞。填充床反应器的由上至下依次设置有进料区、用于设置催化剂床层的催化剂床层区和出料区，所述进料区设有进料口，所述出料区设有出料口，所述催化剂床层区的底部由上至下依次设置有石英棉层和滤网层。优选地，所述滤网层为金属丝网层。优选地，所述滤网层的网孔孔径为100-300目。优选地，所述石英棉层的网孔孔径为100-300目。优选地，所述催化剂床层区设置的催化剂床层由上至下依次包括第一层、催化剂层和第三层；所述第一层为石英砂层或瓷球层，所述第三层为石英砂层或瓷球层。优选地，所述催化剂床层区的底 部还设置有支撑件；所述支撑件位于所述滤网层的下部且固定于所述填充床反应器的内壁上，用于支撑所述催化剂床层区。优选地，所述支撑件为格栅板。优选地，所述催化剂层的高径比为(1-2):1。优选地，所述第一层的高径比为(0.1-0.3):1。优选地，所述第三层的高径比为(0.1-0.3):1。但这样的方式，也难以解决催化剂使用过程中中毒、失效，以及气体处理压降大的问题。For example, CN208302729U provides an anti-clogging packed bed reactor, the packed bed reactor can filter out catalyst powder and quartz sand particles mixed in the gas flow, and prevent the blockage of the subsequent pipeline system. The packed bed reactor is sequentially provided with a feed area, a catalyst bed area for setting the catalyst bed, and a discharge area from top to bottom, the feed area is provided with a feed port, and the discharge area is provided with At the discharge port, a quartz wool layer and a filter screen layer are sequentially arranged at the bottom of the catalyst bed zone from top to bottom. Preferably, the filter screen layer is a wire mesh layer. Preferably, the mesh aperture of the filter screen layer is 100-300 meshes. Preferably, the mesh aperture of the quartz wool layer is 100-300 meshes. Preferably, the catalyst bed provided in the catalyst bed zone includes a first layer, a catalyst layer and a third layer in order from top to bottom; the first layer is a quartz sand layer or a ceramic ball layer, and the third layer For the quartz sand layer or ceramic ball layer. Preferably, a support member is further provided at the bottom of the catalyst bed zone; the support member is located at the lower part of the filter screen layer and is fixed on the inner wall of the packed bed reactor for supporting the catalyst bed layer Area. Preferably, the support member is a grid plate. Preferably, the aspect ratio of the catalyst layer is (1-2):1. Preferably, the aspect ratio of the first layer is (0.1-0.3):1. Preferably, the aspect ratio of the third layer is (0.1-0.3):1. However, in this way, it is difficult to solve the problems of poisoning, failure, and large gas treatment pressure drop during the use of the catalyst.
针对催化吸附材料在使用过程中容易吸附饱和、中毒失效的问题，以及大气量气体处理过程中压降大的问题，目前工业上往往通过多个反应塔进行催化吸附材料填装后，进行反复的单塔反应再生实现其连续化应用的功能。但是这种办法，无法解决低压降的问题，而且占地空间大，结构操作均很复杂，在线更换催化吸附材料存在困难，在应用中受到较大的局限性。In view of the problems of easy adsorption saturation and poisoning failure of catalytic adsorption materials during use, as well as the problem of large pressure drop in the process of atmospheric gas treatment, at present, in industry, after the catalytic adsorption materials are filled in multiple reaction towers, repeated The single-column reaction regeneration realizes its function of continuous application. However, this method cannot solve the problem of low pressure drop, and it occupies a large space, and the structure and operation are complicated.
发明内容SUMMARY OF THE INVENTION
为解决以上问题，本发明提供一种烛式低压降颗粒填充床反应器。本发明采用一种低压降、可在线更换的颗粒吸附催化反应器结构，依据管式/袋式滤料的形状，将颗粒或是其他形式的催化剂在夹层中进行填装，制备成具有一定壁厚的滤管式模块。在相同空速与气体处理量前提下，将催化剂在单个反应器中的堆积分隔为多个穿透式微小型反应模块，最终实现大气量处理过程中压降与反应效率的匹配，提高空间利用率；而且利用分仓原理，可以对每个腔室的催化吸附剂模块进行在线更换，或是再生处理，实现了生产运行的连续与稳定。In order to solve the above problems, the present invention provides a candle-type low pressure drop particle packed bed reactor. The invention adopts a particle adsorption catalytic reactor structure with low pressure drop and can be replaced online. According to the shape of the tubular/bag filter material, particles or other forms of catalysts are filled in the interlayer to prepare a catalyst with a certain wall. Thick filter tube modules. Under the premise of the same space velocity and gas processing capacity, the accumulation of catalysts in a single reactor is divided into multiple penetrating micro-miniature reaction modules, and finally the matching of pressure drop and reaction efficiency in the process of atmospheric processing is realized, and the space utilization rate is improved. Moreover, using the principle of sub-silo, the catalytic adsorbent module of each chamber can be replaced online or regenerated, which realizes the continuous and stable production operation.
为实现上述目的，本发明采用以下技术方案：To achieve the above object, the present invention adopts the following technical solutions:
一种烛式低压降颗粒填充床反应器，包括二级反应装置，所述二级反应装置内设有花板，一个或多个一级微小型催化吸附反应器模块与所述花板密封衔接；催化吸附材料填充在所述一级微小型催化吸附反应器模块中。A candle-type low-pressure drop particle packed bed reactor, comprising a secondary reaction device, the secondary reaction device is provided with a flower plate, and one or more primary micro-miniature catalytic adsorption reactor modules are sealed with the flower plate. ; Catalytic adsorption material is filled in the first-stage micro-miniature catalytic adsorption reactor module.
需要处理的气体或液体经二级反应装置的入口进入，通过一个或多个一级微小型催化吸附反应器模块中的催化吸附材料后，从催化吸附材料的内部集气后与二级反应装置的出口相连，实现气体的催化与吸附净化。The gas or liquid to be treated enters through the inlet of the secondary reaction device, passes through the catalytic adsorption material in one or more first-stage micro-miniature catalytic adsorption reactor modules, and collects gas from the interior of the catalytic adsorption material and then communicates with the secondary reaction device. The outlet of the gas is connected to realize the catalytic and adsorption purification of the gas.
优选地，一级微小型催化吸附反应器模块与所述花板通过法兰固定密封衔接。Preferably, the first-stage micro-miniature catalytic adsorption reactor module is fixedly and sealedly connected to the flower plate through a flange.
优选地，所述烛式低压降颗粒填充床反应器，为包含多个所述二级反应装置的并联***。Preferably, the candle-type low pressure drop particle packed bed reactor is a parallel system comprising a plurality of the secondary reaction devices.
优选地，所述催化吸附材料形状为颗粒状或纤维状。Preferably, the shape of the catalytic adsorption material is granular or fibrous.
优选地，所述催化吸附材料通过均匀填装，置于一级微小型催化吸附反应器模块中。Preferably, the catalytic adsorption material is uniformly packed and placed in the first-stage micro-miniature catalytic adsorption reactor module.
或，所述一级微小型催化吸附反应器模块设置有固定格，固定格用于放置催化吸附材料。Or, the first-stage micro-miniature catalytic adsorption reactor module is provided with a fixed grid, and the fixed grid is used for placing the catalytic adsorption material.
进一步地，一级微小型催化吸附反应器模块为管式反应器。Further, the first-stage micro-miniature catalytic adsorption reactor module is a tubular reactor.
进一步地，所述二级反应装置设有带过滤口的入口。Further, the secondary reaction device is provided with an inlet with a filter port.
进一步地，所述二级反应装置的并联***，并联连接反应气体入口，所述反应气体入口设有过滤装置。Further, the parallel system of the secondary reaction device is connected in parallel with the reaction gas inlet, and the reaction gas inlet is provided with a filter device.
优选地，所述二级反应装置的并联***的每个二级反应装置入口均设有独立的阀门。Preferably, each secondary reaction device inlet of the parallel system of the secondary reaction devices is provided with an independent valve.
本发明将催化吸附材料(颗粒状或纤维状)进行滤管式结构填充后，形成单个一级微小型催化吸附反应器模块，在烛式反应器中进行微小性模块吊装，形成二级反应装置，将多个二级反应装置进行并联后，形成集成式的大宗气体处理单元。该发明将大量的催化吸附材料进行若干个微小型模块的填装，大大简化了催化吸附材料的更换；且通过烛式反应器结构，在有限占地面积上增加了气体的接触面积，在相同空速条件下，极大程度的降低了气体接触面速度，从而降低了***的压降；而且通过多个烛式反应器的并联，可以在不关停***的前提下，单独对单个反应器进行再生或是对反应器中的微小型模块进行更换，从而达到了***低压降、可再生的效果，利于大规模工业生产应用。In the present invention, after the catalytic adsorption material (granular or fibrous) is filled in the filter tube structure, a single first-level micro-miniature catalytic adsorption reactor module is formed, and the micro-module is hoisted in the candle-type reactor to form a secondary reaction device , after connecting multiple secondary reaction devices in parallel, an integrated bulk gas processing unit is formed. In the invention, a large number of catalytic adsorption materials are filled into several micro-miniature modules, which greatly simplifies the replacement of catalytic adsorption materials; and through the candle-type reactor structure, the contact area of the gas is increased in a limited area, and the same Under the condition of space velocity, the velocity of the gas contact surface is greatly reduced, thereby reducing the pressure drop of the system; and through the parallel connection of multiple candle reactors, a single reactor can be individually controlled without shutting down the system. Regenerate or replace the micro-miniature modules in the reactor, so as to achieve the effect of low pressure drop and regeneration of the system, which is beneficial to large-scale industrial production applications.
本发明采用一种低压降、可在线更换的颗粒吸附催化反应器结构，将颗粒或是其他形式的催化剂在夹层中进行填装，制备成具有一定壁厚的滤管式模块。在相同空速与气体处理量前提下，将催化剂在单个反应器中的堆积分隔为多个穿透式微小型反应模块，最终实现大气量处理过程中压降与反应效率的匹配，提高空间利用率；而且利用分仓原理，可以对每个腔室的催化吸附剂模块进行在线更换，或再生处理，实现了生产运行的连续与稳定。The invention adopts a particle adsorption catalytic reactor structure with low pressure drop and can be replaced online, and fills particles or other forms of catalyst in the interlayer to prepare a filter tube module with a certain wall thickness. Under the premise of the same space velocity and gas processing capacity, the accumulation of catalysts in a single reactor is divided into multiple penetrating micro-miniature reaction modules, and finally the matching of pressure drop and reaction efficiency in the process of atmospheric processing is realized, and the space utilization rate is improved. Moreover, using the principle of sub-silo, the catalytic adsorbent module of each chamber can be replaced online or regenerated, which realizes the continuous and stable production operation.
附图说明Description of drawings
附图1是本发明一种烛式低压降颗粒填充床反应器多个二级反应装置并联***示意图；1 is a schematic diagram of a parallel system of multiple secondary reaction units of a candle type low pressure drop particle packed bed reactor of the present invention;
附图2是本发明二级反应装置结构示意图；Accompanying drawing 2 is the structural representation of secondary reaction device of the present invention;
附图3是本发明一级微小型催化吸附反应器模块结构示意图。3 is a schematic structural diagram of a first-stage micro-miniature catalytic adsorption reactor module of the present invention.
附图标号：Reference number:
1-花板；2-一级微小型催化吸附反应器模块；3-入口；4-出口。1-flower plate; 2-first-stage micro-miniature catalytic adsorption reactor module; 3-inlet; 4-outlet.
具体实施方式detailed description
下面结合附图并通过具体实施例来进一步说明本发明技术方案，以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。The technical solutions of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.
一种烛式低压降颗粒填充床反应器，包括多个并联的二级反应装置。颗粒状催化吸附材料均匀填充在一级微小型催化吸附反应器模块中，所述二级反应装置内设有花板1，多个一级微小型催化吸附反应器模块2与花板通过固定密封衔接；A candle-type low pressure drop particle packed bed reactor includes a plurality of parallel secondary reaction devices. The granular catalytic adsorption material is uniformly filled in the first-level micro-catalytic adsorption reactor module, the second-level reaction device is provided with a flower plate 1, and a plurality of first-level micro-miniature catalytic adsorption reactor modules 2 are fixedly sealed with the flower plate. connect;
需要处理的气体经二级反应装置的入口3进入，通过一个或多个一级微小型催化吸附反应器模块中的催化吸附材料后，从催化吸附材料的内部集气后与二级反应装置的出口4相连，实现气体的催化与吸附净化。The gas to be treated enters through the inlet 3 of the secondary reaction device, passes through the catalytic adsorption material in one or more first-stage micro-miniature catalytic adsorption reactor modules, and is collected from the interior of the catalytic adsorption material with the secondary reaction device. The outlet 4 is connected to realize the catalytic and adsorption purification of the gas.
一级微小型催化吸附反应器模块与所述花板通过法兰固定密封衔接。The first-stage micro-miniature catalytic adsorption reactor module is fixedly and sealedly connected to the flower plate through a flange.
所述烛式低压降颗粒填充床反应器，为包含多个所述二级反应装置的并联***。The candle type low pressure drop particle packed bed reactor is a parallel system comprising a plurality of the secondary reaction devices.
所述催化吸附材料形状为颗粒状或纤维状。The shape of the catalytic adsorption material is granular or fibrous.
所述一级微小型催化吸附反应器模块设置有固定格，固定格用于放置催化吸附材料。The first-stage micro-miniature catalytic adsorption reactor module is provided with a fixed grid, and the fixed grid is used for placing the catalytic adsorption material.
一级微小型催化吸附反应器模块为管式反应器。The first-stage micro-miniature catalytic adsorption reactor module is a tubular reactor.
所述二级反应装置设有带过滤口的入口。The secondary reaction device is provided with an inlet with a filter port.
所述二级反应装置的并联***，并联连接反应气体入口，所述反应气体入口设有过滤装置。The parallel system of the secondary reaction device is connected in parallel with the reaction gas inlet, and the reaction gas inlet is provided with a filter device.
所述二级反应装置的并联***的每个二级反应装置入口均设有独立的阀门。Each inlet of the secondary reaction device of the parallel system of the secondary reaction devices is provided with an independent valve.
本发明将催化吸附材料(颗粒状或纤维状)进行滤管式结构填充后，形成单个一级微小型催化吸附反应器模块，在烛式反应器中进行微小性模块吊装，形成二级反应装置，将多个二级反应装置进行并联后，形成集成式的大宗气体处理单元。该发明将大量的催化吸附材料进行若干个微小型模块的填装，简化了催化吸附材料的更换；且通过烛式反应器结构，在有限占地面积上增加了气体的接触面积，在相同空速条件下，极大程度的降低了气体接触面速度，从而降低了***的压降；而且通过多个烛式反应器的并联，可以在不关停***的前提下，对单个反应器进行再生或是反应器中的微小型模块进行更换，从而达到了***低压降、可再生的效果，便于规模化工业生产的实现。In the present invention, after the catalytic adsorption material (granular or fibrous) is filled in the filter tube structure, a single first-level micro-miniature catalytic adsorption reactor module is formed, and the micro-module is hoisted in the candle-type reactor to form a secondary reaction device , after connecting multiple secondary reaction devices in parallel, an integrated bulk gas processing unit is formed. In the invention, a large number of catalytic adsorption materials are filled into several micro-miniature modules, which simplifies the replacement of catalytic adsorption materials; and through the candle-type reactor structure, the contact area of the gas is increased on a limited floor area, and the same space is used. Under the condition of high speed, the speed of the gas contact surface is greatly reduced, thereby reducing the pressure drop of the system; and through the parallel connection of multiple candle reactors, it is possible to regenerate a single reactor without shutting down the system. Or the micro-miniature modules in the reactor are replaced, so as to achieve the effect of low pressure drop in the system and regeneration, which is convenient for the realization of large-scale industrial production.
本发明采用一种低压降、可在线更换的颗粒吸附催化反应器结构，将颗粒或是其他形式的催化剂在夹层中进行填装，制备成具有一定壁厚的滤管式模块。在相同空速与气体处理量前提下，将催化剂在单个反应器中的堆积分隔为多个穿透式微小型反应模块，最终实现大气量处理过程中压降与反应效率的匹配，提高空间利用率；而且利用分仓原理，可以对每个腔室的催化吸附剂模块进行在线更换，或再生处理，实现了生产运行的 连续与稳定。The invention adopts a particle adsorption catalytic reactor structure with low pressure drop and can be replaced online, and fills particles or other forms of catalyst in the interlayer to prepare a filter tube module with a certain wall thickness. Under the premise of the same space velocity and gas processing capacity, the accumulation of catalysts in a single reactor is divided into multiple penetrating micro-miniature reaction modules, and finally the matching of pressure drop and reaction efficiency in the process of atmospheric processing is realized, and the space utilization rate is improved. Moreover, using the principle of sub-silo, the catalytic adsorbent module of each chamber can be replaced online or regenerated, which realizes the continuous and stable production operation.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应视为本发明的保护范围。The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the present invention, several improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (10)

  1. 一种烛式低压降颗粒填充床反应器，包括二级反应装置，其特征在于：所述二级反应装置内设有花板，一个或多个一级微小型催化吸附反应器模块与所述花板密封衔接；催化吸附材料填充在所述一级微小型催化吸附反应器模块中。A candle-type low-pressure drop particle packed bed reactor, comprising a secondary reaction device, characterized in that: the secondary reaction device is provided with a flower plate, and one or more primary micro-miniature catalytic adsorption reactor modules are connected to the secondary reaction device. The flower plate is sealed and connected; the catalytic adsorption material is filled in the first-stage micro-miniature catalytic adsorption reactor module.
  2. 根据权利要求1所述的一种烛式低压降颗粒填充床反应器，其特征在于，一级微小型催化吸附反应器模块与所述花板通过法兰固定密封衔接。The candle-type low-pressure drop particle packed bed reactor according to claim 1, wherein the first-stage micro-miniature catalytic adsorption reactor module is fixedly and sealedly connected to the flower plate through a flange.
  3. 根据权利要求1所述的一种烛式低压降颗粒填充床反应器，其特征在于，所述烛式低压降颗粒填充床反应器，为包含多个所述二级反应装置的并联***。The candle type low pressure drop particle packed bed reactor according to claim 1, wherein the candle type low pressure drop particle packed bed reactor is a parallel system comprising a plurality of the secondary reaction devices.
  4. 根据权利要求1-3所述的一种烛式低压降颗粒填充床反应器，其特征在于，所述催化吸附材料形状为颗粒状或纤维状。The candle-type low pressure drop particle packed bed reactor according to claims 1-3, wherein the shape of the catalytic adsorption material is granular or fibrous.
  5. 根据权利要求4所述的一种烛式低压降颗粒填充床反应器，其特征在于，所述催化吸附材料通过均匀填装，置于一级微小型催化吸附反应器模块中。The candle-type low pressure drop particle packed bed reactor according to claim 4, wherein the catalytic adsorption material is uniformly packed and placed in a first-stage micro-miniature catalytic adsorption reactor module.
  6. 根据权利要求4所述的一种烛式低压降颗粒填充床反应器，其特征在于，所述一级微小型催化吸附反应器模块设置有固定格，固定格用于放置催化吸附材料。The candle-type low pressure drop particle packed bed reactor according to claim 4, wherein the first-stage micro-miniature catalytic adsorption reactor module is provided with a fixed grid, and the fixed grid is used for placing the catalytic adsorption material.
  7. 根据权利要求1所述的一种烛式低压降颗粒填充床反应器，其特征在于，所述一级微小型催化吸附反应器模块为管式反应器。The candle-type low-pressure drop particle packed bed reactor according to claim 1, wherein the first-stage micro-miniature catalytic adsorption reactor module is a tubular reactor.
  8. 根据权利要求1所述的一种烛式低压降颗粒填充床反应器，其特征在于，所述二级反应装置设有带过滤口的入口。The candle type low pressure drop particle packed bed reactor according to claim 1, wherein the secondary reaction device is provided with an inlet with a filter port.
  9. 根据权利要求3所述的一种烛式低压降颗粒填充床反应器，其特征在于，所述二级反应装置的并联***，并联连接反应气体入口，所述反应气体入口设有过滤装置。The candle-type low pressure drop particle packed bed reactor according to claim 3, wherein the parallel system of the secondary reaction devices is connected in parallel with the reaction gas inlet, and the reaction gas inlet is provided with a filter device.
  10. 根据权利要求3或9所述的一种烛式低压降颗粒填充床反应器，其特征在于，所述二级反应装置的并联***的每个二级反应装置入口均设有独立的阀门。The candle type low pressure drop particle packed bed reactor according to claim 3 or 9, characterized in that, each secondary reaction device inlet of the parallel system of the secondary reaction devices is provided with an independent valve.
PCT/CN2020/110673 2020-08-23 2020-08-23 Candle-type low pressure drop particle packed bed reactor WO2022040831A1 (en)

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Publication number Priority date Publication date Assignee Title
CN207169659U (en) * 2017-09-07 2018-04-03 安徽晨晰洁净科技有限公司 A kind of Novel SCR Benitration reactor
CN109126313A (en) * 2018-09-18 2019-01-04 中钢集团天澄环保科技股份有限公司 Bag-type dusting and catalytic denitration, de- dioxin integrated apparatus
CN111167289A (en) * 2020-02-26 2020-05-19 四川恒泰环境技术有限责任公司 Industrial flue gas co-processing system and processing method
CN212790492U (en) * 2020-04-30 2021-03-26 南京赤博环保科技有限公司 Candle type low-pressure-drop particle fixed bed reactor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207169659U (en) * 2017-09-07 2018-04-03 安徽晨晰洁净科技有限公司 A kind of Novel SCR Benitration reactor
CN109126313A (en) * 2018-09-18 2019-01-04 中钢集团天澄环保科技股份有限公司 Bag-type dusting and catalytic denitration, de- dioxin integrated apparatus
CN111167289A (en) * 2020-02-26 2020-05-19 四川恒泰环境技术有限责任公司 Industrial flue gas co-processing system and processing method
CN212790492U (en) * 2020-04-30 2021-03-26 南京赤博环保科技有限公司 Candle type low-pressure-drop particle fixed bed reactor

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