WO2020248370A1 - Voc waste gas treatment method and device in intermittent production - Google Patents
Voc waste gas treatment method and device in intermittent production Download PDFInfo
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- WO2020248370A1 WO2020248370A1 PCT/CN2019/102519 CN2019102519W WO2020248370A1 WO 2020248370 A1 WO2020248370 A1 WO 2020248370A1 CN 2019102519 W CN2019102519 W CN 2019102519W WO 2020248370 A1 WO2020248370 A1 WO 2020248370A1
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- heat exchanger
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- catalytic combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
Definitions
- the invention belongs to the field of waste gas treatment, and in particular relates to a method and device for treating VOC waste gas in batch production.
- the technical problem to be solved by the present invention is to provide a VOC waste gas treatment device in intermittent production, which has simple equipment, low investment, quick effect and no secondary pollution.
- a VOC waste gas treatment device in intermittent production including a catalytic combustion reactor, a heat exchanger and a fan; the refrigerant inlet of the heat exchanger is connected with the exhaust gas input pipeline; heat exchange The refrigerant outlet of the heat exchanger is connected with the gas inlet of the catalytic combustion reactor; the gas outlet of the catalytic combustion reactor is connected with the heat medium inlet of the heat exchanger; the heat medium outlet of the heat exchanger is provided with a fan.
- the electric heater is arranged between the refrigerant outlet of the heat exchanger and the gas inlet of the chemical combustion reactor; the electric heater reacts with the heat exchanger and the chemical combustion reactor through the gas delivery pipeline, respectively ⁇ Connectors.
- the heat exchanger adopts a plate heat exchanger.
- the invention also provides a method for treating VOC exhaust gas in batch production.
- the exhaust gas and the gas after the catalytic combustion reactor undergo heat exchange to preheat the exhaust gas.
- the preheated gas enters the catalytic combustion reactor.
- the exhaust gas performs heat exchange.
- the oxidation reaction produces harmless water and carbon dioxide.
- the treated exhaust gas meets the national emission standards; when the concentration of organic matter in the exhaust gas is low or when driving, the heater is required to provide additional heat.
- 3It can reduce the initial combustion temperature of organic waste gas
- Figure 1 is a schematic diagram of the structure of the present invention.
- FIG. 1 it is a VOC waste gas treatment device in batch production of the present invention, which includes a catalytic combustion reactor 1, a heat exchanger 2, an electric heater 3 and a fan 4; the refrigerant inlet of the heat exchanger 2 and the exhaust gas
- the input pipe 5 is connected; the refrigerant outlet of the heat exchanger 2 is connected with the gas inlet of the catalytic combustion reactor 1; the gas outlet of the catalytic combustion reactor 1 and the heat medium inlet of the heat exchanger 2 are connected; the heat medium outlet of the heat exchanger 2 is set Fan.
- the electric heater 3 is arranged between the refrigerant outlet of the heat exchanger 2 and the gas inlet of the chemical combustion reactor 1; the electric heater is respectively connected to the heat exchanger and the chemical combustion reactor through a gas delivery pipe.
- the heat exchanger of the present invention adopts a plate heat exchanger.
- Invented a method for treating VOC exhaust gas in batch production The exhaust gas and the gas after the catalytic combustion reactor are heat exchanged to preheat the exhaust gas. After the preheated gas enters the catalytic combustion reactor, the exhaust gas undergoes oxidation reaction under the action of a catalyst. It produces harmless water and carbon dioxide, and the exhaust gas purification efficiency is more than 99%.
- the treated exhaust gas meets the national emission standard; when the concentration of organic matter in the exhaust gas is low or when driving, the heater needs to provide additional heat.
- Catalytic combustion is a typical gas-solid phase catalytic reaction, and its essence is the deep oxidation of active oxygen.
- the catalyst can reduce the activation energy of the reaction.
- the surface of the catalyst has an adsorption effect, so that the exhaust gas molecules are concentrated on the surface to increase the reaction rate and accelerate the reaction.
- the exhaust gas can be at a lower ignition temperature. , Flameless combustion occurs, oxidatively decomposed into CO 2 and H 2 O, and at the same time releases a large amount of heat energy, thereby removing harmful substances in the waste gas from surfactant production.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Disclosed are a VOC waste gas treatment method and device in intermittent production. The device comprises a catalytic combustion reactor (1), a heat exchanger (2), and a fan (4). A refrigerant inlet of the heat exchanger (2) is connected to a waste gas input pipeline (5); a refrigerant outlet of the heat exchanger (2) is connected to a gas inlet of the catalytic combustion reactor (1); a gas outlet of the catalytic combustion reactor (1) is connected to a heat medium inlet of the heat exchanger (2); and a heat medium outlet of the heat exchanger (2) is provided with the fan (4). Waste gas and gas which is treated by the catalytic combustion reactor (1) exchange heat, the waste gas is preheated, the preheated gas enters the catalytic combustion reactor (1), and under the action of a catalyst, the waste gas undergoes an oxidation reaction to generate innoxious water and carbon dioxide. The apparatus is simple, the investment is small, the effect is quick, and secondary pollution is not caused.
Description
本发明属于废气处理领域，具体涉及一种间歇式生产中VOC废气处理方法和装置。The invention belongs to the field of waste gas treatment, and in particular relates to a method and device for treating VOC waste gas in batch production.
在有些生产过程中，会采用间歇式反应，常见的反应釜就是典型。在表面活性剂生产、染料中间体、医药中间体原料和产品灌装过程中会排放大量废气，传统的采用吸附-脱附方式净化效率低。In some production processes, batch reactions are used, and common reactors are typical. In the production of surfactants, dye intermediates, pharmaceutical intermediates, and product filling processes, a large amount of waste gas is emitted, and the traditional adsorption-desorption method has low purification efficiency.
发明内容Summary of the invention
本发明要解决的技术问题是提供一种间歇式生产中VOC废气处理装置，设备简单，投资少，见效快；不会造成二次污染。The technical problem to be solved by the present invention is to provide a VOC waste gas treatment device in intermittent production, which has simple equipment, low investment, quick effect and no secondary pollution.
为解决上述技术问题，本发明采取如下技术方案：一种间歇式生产中VOC废气处理装置，包括催化燃烧反应器、换热器和风机；换热器的冷媒入口与废气输入管道连接；换热器的冷媒出口与催化燃烧反应器的气体入口连接；催化燃烧反应器的气体出口与换热器的热媒入口；换热器的热媒出口设置风机。In order to solve the above technical problems, the present invention adopts the following technical solutions: a VOC waste gas treatment device in intermittent production, including a catalytic combustion reactor, a heat exchanger and a fan; the refrigerant inlet of the heat exchanger is connected with the exhaust gas input pipeline; heat exchange The refrigerant outlet of the heat exchanger is connected with the gas inlet of the catalytic combustion reactor; the gas outlet of the catalytic combustion reactor is connected with the heat medium inlet of the heat exchanger; the heat medium outlet of the heat exchanger is provided with a fan.
进一步地，还包括电加热器；所述的电加热器设置于换热器的冷媒出口和化燃烧反应器的气体入口之间；电加热器通过气体输送管道分别与换热器和化燃烧反应器连接。Further, it also includes an electric heater; the electric heater is arranged between the refrigerant outlet of the heat exchanger and the gas inlet of the chemical combustion reactor; the electric heater reacts with the heat exchanger and the chemical combustion reactor through the gas delivery pipeline, respectively器连接。 Connectors.
进一步地，所述的换热器采用板式换热器。Further, the heat exchanger adopts a plate heat exchanger.
本发明还提供一种间歇式生产中VOC废气处理方法，废气和催化燃烧反应器处理后气体进行热交换，预热废气，预热后气体进入催化燃烧反应器，在催化剂的作用下，废气进行氧化反应生成无害的水和二氧化碳。The invention also provides a method for treating VOC exhaust gas in batch production. The exhaust gas and the gas after the catalytic combustion reactor undergo heat exchange to preheat the exhaust gas. The preheated gas enters the catalytic combustion reactor. Under the action of the catalyst, the exhaust gas performs heat exchange. The oxidation reaction produces harmless water and carbon dioxide.
进一步地，处理后的废气达到国家排放标准；当废气中有机物浓度较低或开车时，需要加热器额外提供热量。Further, the treated exhaust gas meets the national emission standards; when the concentration of organic matter in the exhaust gas is low or when driving, the heater is required to provide additional heat.
本发明的有益效果：The beneficial effects of the present invention:
①设备简单，投资少，见效快；①The equipment is simple, the investment is small, and the effect is quick;
②不会造成二次污染；②No secondary pollution will be caused;
③可以降低有机废气的起始燃烧温度；③It can reduce the initial combustion temperature of organic waste gas;
④燃烧不受碳氢化合物浓度的限制。④ Combustion is not restricted by the concentration of hydrocarbons.
为了更清晰地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图简单地介绍，显而易见地，下面描述中的附图仅仅是本发明中记载的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly describe the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some of the embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.
图1为本发明的结构示意图。Figure 1 is a schematic diagram of the structure of the present invention.
下面将通过具体实施方式对本发明的技术方案进行清楚、完整地描述。The technical solution of the present invention will be clearly and completely described below through specific implementations.
如图1所示，为本发明的一种间歇式生产中VOC废气处理装置，包括催化燃烧反应器1、换热器2、电加热器3和风机4；换热器2的冷媒入口与废气输入管道5连接；换热器2的冷媒出口与催化燃烧反应器1的气体入口连接；催化燃烧反应器1的气体出口与换热器2的热媒入口；换热器2的热媒出口设置风机。电加热器3设置于换热器2的冷媒出口和化燃烧反应器1的气体入口之间；电加热器通过气体输送管道分别与换热器和化燃烧反应器连接。As shown in Figure 1, it is a VOC waste gas treatment device in batch production of the present invention, which includes a catalytic combustion reactor 1, a heat exchanger 2, an electric heater 3 and a fan 4; the refrigerant inlet of the heat exchanger 2 and the exhaust gas The input pipe 5 is connected; the refrigerant outlet of the heat exchanger 2 is connected with the gas inlet of the catalytic combustion reactor 1; the gas outlet of the catalytic combustion reactor 1 and the heat medium inlet of the heat exchanger 2 are connected; the heat medium outlet of the heat exchanger 2 is set Fan. The electric heater 3 is arranged between the refrigerant outlet of the heat exchanger 2 and the gas inlet of the chemical combustion reactor 1; the electric heater is respectively connected to the heat exchanger and the chemical combustion reactor through a gas delivery pipe.
本发明的换热器采用板式换热器。The heat exchanger of the present invention adopts a plate heat exchanger.
发明的一种间歇式生产中VOC废气处理方法，废气和催化燃烧反应器处理后气体进行热交换，预热废气，预热后气体进入催化燃烧反应器，在催化剂的作用下，废气进行氧化反应生成无害的水和二氧化碳，废气净化效率＞99％处理后的废气达到国家排放标准；当废气中有机物浓度较低或开车时，需要加热器额外提供热量。Invented a method for treating VOC exhaust gas in batch production. The exhaust gas and the gas after the catalytic combustion reactor are heat exchanged to preheat the exhaust gas. After the preheated gas enters the catalytic combustion reactor, the exhaust gas undergoes oxidation reaction under the action of a catalyst. It produces harmless water and carbon dioxide, and the exhaust gas purification efficiency is more than 99%. The treated exhaust gas meets the national emission standard; when the concentration of organic matter in the exhaust gas is low or when driving, the heater needs to provide additional heat.
催化燃烧是典型的气-固相催化反应，其实质是活性氧参与的深度氧化作用。在催化燃烧过程中，催化剂可降低反应活化能，同时催化剂表面具有吸附作用，使废气分子富集于表面提高反应速率，加快反应的进行，借助催化剂可使废气在较低的起燃温度条件下，发生无焰燃烧，并氧化分解为CO
2和H
2O，同时放出大量热能，从而去除表面活性剂生产废气中的有害物质。
Catalytic combustion is a typical gas-solid phase catalytic reaction, and its essence is the deep oxidation of active oxygen. In the process of catalytic combustion, the catalyst can reduce the activation energy of the reaction. At the same time, the surface of the catalyst has an adsorption effect, so that the exhaust gas molecules are concentrated on the surface to increase the reaction rate and accelerate the reaction. With the help of the catalyst, the exhaust gas can be at a lower ignition temperature. , Flameless combustion occurs, oxidatively decomposed into CO 2 and H 2 O, and at the same time releases a large amount of heat energy, thereby removing harmful substances in the waste gas from surfactant production.
上面所述的实施例仅仅是本发明的优选实施方式进行描述，并非对本发明的构思和范围进行限定，在不脱离本发明设计构思的前提下，本领域中普通工程技术人员对本发明的技术方案作出的各种变型和改进均应落入本发明的保护范围，本发明的请求保护的技术内容，已经全部记载在技术要求书中。The above-mentioned embodiments are only preferred embodiments of the present invention to describe, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, those of ordinary skill in the art have an opinion on the technical solution of the present invention. The various modifications and improvements made should fall within the protection scope of the present invention, and the technical content claimed in the present invention has all been recorded in the technical requirements.
Claims (5)
- 一种间歇式生产中VOC废气处理装置，其特征在于：包括催化燃烧反应器、换热器和风机；换热器的冷媒入口与废气输入管道连接；换热器的冷媒出口与催化燃烧反应器的气体入口连接；催化燃烧反应器的气体出口与换热器的热媒入口；换热器的热媒出口设置风机。A VOC waste gas treatment device in batch production, which is characterized in that it comprises a catalytic combustion reactor, a heat exchanger and a fan; the refrigerant inlet of the heat exchanger is connected with the exhaust gas input pipeline; the refrigerant outlet of the heat exchanger is connected with the catalytic combustion reactor The gas inlet is connected; the gas outlet of the catalytic combustion reactor is connected with the heat medium inlet of the heat exchanger; the heat medium outlet of the heat exchanger is provided with a fan.
- 根据权利要求1所述的一种间歇式生产中VOC废气处理装置，其特征在于：还包括电加热器；所述的电加热器设置于换热器的冷媒出口和化燃烧反应器的气体入口之间；电加热器通过气体输送管道分别与换热器和化燃烧反应器连接。The VOC waste gas treatment device in batch production according to claim 1, characterized in that it further comprises an electric heater; the electric heater is arranged at the refrigerant outlet of the heat exchanger and the gas inlet of the chemical combustion reactor Between; the electric heater is respectively connected with the heat exchanger and the chemical combustion reactor through the gas delivery pipeline.
- 根据权利要求1所述的一种间歇式生产中VOC废气处理装置，其特征在于：所述的换热器采用板式换热器。The VOC waste gas treatment device in batch production according to claim 1, wherein the heat exchanger adopts a plate heat exchanger.
- 采用权利要求1所述的处理装置的间歇式生产中VOC废气处理方法，其特征在于：废气和催化燃烧反应器处理后气体进行热交换，预热废气，预热后气体进入催化燃烧反应器，在催化剂的作用下，废气进行氧化反应生成无害的水和二氧化碳。The method for processing VOC exhaust gas in batch production using the processing device of claim 1, characterized in that: the exhaust gas and the gas after the catalytic combustion reactor undergo heat exchange, the exhaust gas is preheated, and the preheated gas enters the catalytic combustion reactor, Under the action of the catalyst, the exhaust gas undergoes an oxidation reaction to produce harmless water and carbon dioxide.
- 根据权利要求4所述的间歇式生产中VOC废气处理方法，其特征在于：处理后的废气达到国家排放标准；当废气中有机物浓度较低或开车时，需要加热器额外提供热量。The method for treating VOC waste gas in batch production according to claim 4, characterized in that: the treated waste gas meets the national emission standard; when the concentration of organic matter in the waste gas is low or the vehicle is driven, the heater is required to provide additional heat.
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| CN201910515929.0 | 2019-06-14 | ||
| CN201910515929.0A CN110319450A (en) | 2019-06-14 | 2019-06-14 | VOC waste gas processing method and device in a kind of batch production |
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| CN110319450A (en) * | 2019-06-14 | 2019-10-11 | 南京高源环保工程有限公司 | VOC waste gas processing method and device in a kind of batch production |
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| CA2746584A1 (en) * | 2008-12-18 | 2010-06-24 | Nordic Gas Cleaning Ab | Apparatus and method for the treatment of gas |
| CN103721563B (en) * | 2013-12-18 | 2016-01-20 | 浙江省环境保护科学设计研究院 | A kind for the treatment of apparatus of O3 catalytic oxidation organic exhaust gas and processing method |
| CN105202553A (en) * | 2015-10-15 | 2015-12-30 | 苏州韵蓝环保科技有限公司 | Energy-saving organic exhaust gas catalytic combustion treatment device |
| CN210373479U (en) * | 2019-06-14 | 2020-04-21 | 南京高源环保工程有限公司 | VOC exhaust treatment device in intermittent type formula production |
-
2019
- 2019-06-14 CN CN201910515929.0A patent/CN110319450A/en not_active Withdrawn
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| US20010001651A1 (en) * | 1998-06-22 | 2001-05-24 | Jun Izumi | Method for processing polluted fluid containing pollutants |
| CN1611291A (en) * | 2003-10-31 | 2005-05-04 | 中国石油化工股份有限公司 | Method for purifying organic waste gas with high concentration |
| CN102913919A (en) * | 2011-08-01 | 2013-02-06 | 中国石油化工股份有限公司 | Method for purifying high-concentration organic waste gas |
| CN106287758A (en) * | 2016-06-16 | 2017-01-04 | 山东贝斯特节能技术有限公司 | A kind of low-temperature catalyzed exhaust-gas treatment of high temperature incineration utilizes system |
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| CN208237892U (en) * | 2018-04-04 | 2018-12-14 | 河北宏顺旺吉环保科技有限公司 | The system of catalysis burning processing VOCs exhaust gas |
| CN110319450A (en) * | 2019-06-14 | 2019-10-11 | 南京高源环保工程有限公司 | VOC waste gas processing method and device in a kind of batch production |
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