CN104566404A - Organic waste gas purification method - Google Patents
Organic waste gas purification method Download PDFInfo
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- CN104566404A CN104566404A CN201310518786.1A CN201310518786A CN104566404A CN 104566404 A CN104566404 A CN 104566404A CN 201310518786 A CN201310518786 A CN 201310518786A CN 104566404 A CN104566404 A CN 104566404A
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical Kinetics & Catalysis (AREA)
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention provides an organic waste gas purification method, which comprises the following contents that a mobile heat storage ball heat exchange system is used for recovering reaction heat, and organic waste gas is heated to reach reaction temperature; and catalytic combustion treatment is carried out, under the effects of catalysts, harmful substances in the waste gas are removed, wherein the heat storage ball heat exchange system comprises a heat storage pipe, a heat storage ball, a gear pump and a heat exchange section, the heat storage pipe forms a closed loop in a way of surrounding a catalytic combustion reactor, the gear pump pushes the heat storage ball to cyclically move in the heat storage pipe, the heat exchange section is a crossing part of a gas inlet pipe, a gas outlet pipe and the heat storage pipe, and is divided into a heat release section and a heat storage section, and the crossing cross sections of the gas and the heat storage ball are separated by a pipe net with holes. The organic waste gas purification method has the advantages that the mobile heat storage bal heat exchange system is used for realizing the heat exchange, the problem of too high temperature of the heat exchanger due to organic waste gas concentration increase is solved, the method is applicable to the waste gas of various production devices from petrochemical industry enterprises, and is particularly suitable for organic waste gas with higher organic pollutant concentration and lower oxygen contents.
Description
Technical field
The present invention relates to a kind of purification method of organic exhaust gas, be specifically related to a kind of method utilizing catalytic combustion reactor process high-concentration organic waste gas.Be applicable to the various process units waste gas come from petrochemical enterprise, be particularly suitable for the higher and organic exhaust gas that oxygen content is lower of organic contamination substrate concentration.
Background technology
Catalytic combustion technology refers at a lower temperature, makes the combustible component exhaustive oxidation in waste gas decompose, thus make waste gas be purified the method for process under the effect of catalyst.This method is applicable to the flammable or at high temperature decomposable organic gas of process.The advantage of catalytic combustion has: limit less, applied widely to combustible component concentration and calorific value; Initiation temperature is low, and most of organic matter and CO can complete reaction at 200 ~ 400 DEG C, therefore auxiliary fuel consumption is few, economize energy; Belong to non-flaming combustion, security is good.And equipment is simple, small investment, easy to operate, purification thoroughly, is therefore current most widely used general, cost-effective treatment technology.
The temperature of organic exhaust gas is usually below l00 DEG C, and concentration is also unstable, and heat can not be self-supporting, therefore needs heat temperature raising before entering the reactor.The typical process flow of catalytic combustion technology for: organic exhaust gas is heated to the initiation temperature needed for catalyst combustion reaction through heater, then enters catalytic combustion reactor, by waste gas purification under the effect of catalyst.Owing to purifying rear gas temperature high (400 ~ 600 DEG C), for reclaiming this part heat, the advanced preheater of waste gas gas converting heat rear with purification can be adopted, then the method heated.CN03211736.1 discloses a kind of flow process of catalytic burning organic waste gas, the integrated apparatus that it is made up of blower fan, catalytic combustion reactor, electrical control cabinet, heat exchange of heat pipe etc.; Catalytic combustion reactor is built with infrared ray heating pipe and catalyst; Catalytic combustion reactor is exterior air circulating umbilical; Blower fan is frequency conversion fan; Heat exchange of heat pipe is round trip and built with fin heat pipe, normally runs, and to control air quantity and heat exchange of heat pipe to the recovery of heat by frequency conversion fan.The treatment process heat transfer efficiency that this invention proposes is high, economize energy, if but for the treatment of the higher organic exhaust gas of concentration, then there is certain drawback.Because exhaust gas concentration is higher, catalytic reactor temperature is higher, and the temperature that reaction generates gas also significantly rises thereupon.Heat exchange of heat pipe running temperature can be made so too high, and at high temperature operation for a long time can make heat pipe scale velocity accelerate.When the oxygen content in waste gas is lower, the speed of heat exchanger coking can be faster.And heat exchange of heat pipe not easy cleaning, fouling makes heat transfer coefficient reduce, and the thermal efficiency reduces, and service life shortens.If high temperature heat source temperature is always more than 500 DEG C, heat exchange of heat pipe can only normally work about 6 months.And for the situation that exhaust gas concentration fluctuation is larger, if concentration increases suddenly, make heat exchange temperature sharply increase, fire incident even can be caused to occur.So, use the method for heat exchange of heat pipe preheating waste gas, for high concentration and the lower organic exhaust gas of oxygen content inapplicable.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of purification method of organic exhaust gas.The present invention adopts heat-storing sphere heat-exchange system to realize exchange heat, solve organic exhaust gas concentration and increase the too high problem of the heat exchange temperature that causes, be applicable to the various process units waste gas come from petrochemical enterprise, be particularly suitable for the higher and organic exhaust gas that oxygen content is lower of organic contamination substrate concentration.
The purification method of organic exhaust gas of the present invention, comprises following content: use portable heat-storing sphere heat-exchange system to reclaim reaction heat, and heating organic exhaust gas reaches reaction temperature; And then carry out catalytic combustion process, by the harmful substance removal in waste gas under the effect of catalyst; Wherein heat-storing sphere heat-exchange system comprises heat accumulation pipe, heat-storing sphere, gear pump and heat exchanging segment, heat accumulation pipe forms closed-loop path around catalytic combustion reactor, gear pump promotes heat-storing sphere and moves at heat accumulation pipe Inner eycle, heat exchanging segment is the intersection of air inlet pipe and escape pipe and heat accumulation pipe, be divided into heat release section and heat accumulating sections, gas uses pipe network with holes to separate with the crossing cross section of heat-storing sphere.
In the present invention, heat-storing sphere adopts ceramic hollow heat-storing sphere, and ceramic heat-storing sphere has the advantages such as heat-resisting, intensity is large, thermal capacitance is large, easy cleaning.Heat-storing sphere is of a size of φ 10 ~ 20mm, is promoted by gear pump, moves in pipeline.Heat-storing sphere is 20 ~ 60s through the time of heat exchanging segment.
In the present invention, air inlet pipe and escape pipe preferably carry out expanding in heat release section and heat accumulating sections, are of a size of 2 ~ 5 times of raw-gas caliber after expanding.Air inlet pipe and escape pipe are 8:1 ~ 1:1 with the caliber ratio of heat accumulation pipe.
In the present invention, in waste gas, organic concentration is preferably 10000 ~ 12500mg/m
3, oxygen content is 1.0% ~ 10%(V/V).Under nominal situation, waste gas flow velocity is 20000 ~ 25000Nmh
-1.
In the present invention, heat-storing sphere is in heat accumulating sections and purified gas heat exchange, and heat-storing sphere temperature is increased to 300 ~ 450 DEG C; Move to heat release section and untreated organic exhaust gas heat exchange again, EGT is increased to 200 ~ 300 DEG C.When reactor outlet temperature is not less than 350 DEG C, organic exhaust gas can be heated to reaction condition.
In the present invention, catalytic combustion reactor is built with honeycomb type noble metal catalyst, and carrier is honeycomb ceramic body, it supports precious metals pt, Pd isoreactivity component, wherein containing Pt 0.2wt% ~ 0.5wt%, Pd 0.1wt% ~ 0.3wt%.Under the effect of catalyst, the organic component in waste gas is catalyzed is oxidized to carbon dioxide and water.The inlet temperature of catalytic combustion reactor is generally 200 ~ 300 DEG C, and use air speed is 10000 ~ 60000h
-1.Catalytic combustion reactor outlet temperature is for being generally 400 ~ 600 DEG C.Serviceability temperature and the air speed of catalyst is adjusted according to organic kind contained in organic exhaust gas and concentration, higher reaction temperature can make organic exhaust gas have good clean-up effect, when avoiding organic exhaust gas and heat-storing sphere heat exchange but then again, heat-storing sphere heat-exchange system can be entered.Should answer device inside that anti-explosion electric heater is housed, if EGT does not reach requirement, can be heated to further and require temperature.If exhaust gas concentration is little, reactor outlet temperature is low, and heat exchange is not enough, can open reactor internal heater, ensures catalytic combustion temperature.
In the present invention, frequency conversion fan selected by blower fan, controls air quantity by frequency conversion fan, ensures that concentration that waste gas enters reactor does not exceed standard and waste gas is not mixed into heat-storing sphere heat-exchange system.Blower fan makes the pressure of organic exhaust gas be greater than the pressure of purified gas, and air quantity is greater than exhausted air quantity, can ensure that waste gas can not flow into heat accumulation pipe like this.In addition, if exhaust gas concentration has exceeded the inlet gas concentration of catalytic combustion reactor, add air before preheating by blower fan, to reduce exhaust gas concentration, avoided waste gas heat release when catalytic bed is reacted more and cause catalyst because of high temperature deactivation.The interpolation of air can be Non-follow control, also can be automatic control, and the signal automatically controlled is from catalytic combustion reactor outlet temperature.
The present invention take catalytic combustion as core, portable heat-storing sphere heat-exchange system is adopted to instead of traditional heat exchanger, achieve the exchange heat of gas turnover catalytic combustion reactor, the temperature that organic exhaust gas enters reactor can be met on the one hand, ensure the purification efficiency of waste gas; On the other hand can the reaction heat of gas after reclaiming clean, realize the reuse of heat.Meanwhile, the drawback that the heat exchanger coking that brings when processing high-concentration organic waste gas of Conventional catalytic burning flow process is difficult to clear up is solved.The present invention, to the unexpected increase of the exhaust gas concentration that the fluctuation due to process units causes, has higher operating flexibility, can not heat exchanging system have a negative impact; And heat-storing sphere not easily coking and the fouling used, is easy to cleaning, extends the service life of heat-exchange system.
Accompanying drawing explanation
Fig. 1 is the outline flowchart of apparatus of the present invention;
Wherein: 1-air inlet pipe, 2-heat release section, 3-blower fan, 4-catalytic combustion reactor, 5-heat accumulating sections, 6-escape pipe, 7-heat accumulation pipe, 8-gear pump.
Fig. 2 is the structural representation of heat accumulating sections and heat release section in heat-storing sphere heat-exchange system of the present invention;
Wherein: 9-heat-storing sphere, 10-pipe network with holes; Waste gas before 11-heat exchange, waste gas after 12-heat exchange, heat-storing sphere before 13-heat exchange, heat-storing sphere after 14-heat exchange.
Detailed description of the invention
The purifier of organic exhaust gas of the present invention as depicted in figs. 1 and 2, comprises air inlet pipe 1, heat release section 2, blower fan 3, catalytic combustion reactor 4, heat accumulating sections 5, escape pipe 6, heat accumulation pipe 7, gear pump 8, heat-storing sphere 9 and pipe network with holes 10.Heat accumulation pipe 7 forms closed-loop path around catalytic combustion reactor 4, and it is mobile in heat accumulation pipe 7 that gear pump 8 promotes heat-storing sphere 9.Heat exchanging segment comprises heat release section 2 and heat accumulating sections 5, and air inlet pipe 1 is heat release section 2 with the intersection of heat accumulation pipe 7, and escape pipe 6 is heat accumulating sections 5 with the intersection of heat accumulation pipe 7.In order to ensure heat-storing sphere normally movement, gas and the crossing cross section of heat-storing sphere 9 use pipe network 10 with holes to separate.As shown in Figure 2, before heat exchange, waste gas 11 is after heat-storing sphere heat exchange for the Structure and Process of heat exchanging segment, absorbs or releases heat, becoming waste gas 12 after heat exchange; And before heat exchange heat-storing sphere 13 through with exhaust gas contact after, release or absorb heat, becoming heat-storing sphere 14 after heat exchange.Heat-storing sphere is ceramic hollow heat-storing sphere, is of a size of φ 10 ~ 20mm.Heat-storing sphere is at accumulation of heat in-pipe, and the time of carrying out heat exchange through heat accumulating sections and heat release section is 20 ~ 60S.For ensureing heat transfer effect, air inlet pipe and escape pipe preferably carry out expanding in heat release section and heat accumulating sections, are preferably dimensioned to be 2 ~ 5 times of raw-gas pipe diameter after expanding, increase gas-solid heat exchange area.Gas pipeline is preferably 8:1 ~ 1:1 with the caliber ratio of heat accumulation pipe.After heat release section, arrange blower fan, make vacuum herein be greater than heat accumulation pipe, waste gas is not mixed into heat-storing sphere heat-exchange system.Most of reaction heat reclaims through heat release section by such waste gas, is heated to uniform temperature, and after blower fan, waste gas enters catalytic combustion reactor, under the effect of catalyst, and the oxidized catalysis carbon dioxide of the organic component in waste gas and water, purified gas qualified discharge.Reactor is built with honeycomb type noble metal catalyst, and the inlet temperature of catalytic combustion reactor is generally 200 ~ 300 DEG C, and use space velocity range is 10000 ~ 60000h
-1.Inside reactor is equipped with anti-explosion electric heater, if EGT does not reach requirement, can be heated to further and require temperature.
Illustrate the present invention further below in conjunction with example, but be not limited to protection scope of the present invention.
Embodiment 1
One Chemical Manufacture tail gas, capacity is 2000 ~ 3000Nm
3/ h, toxic emission temperature 80 DEG C, waste gas consists of: nitrogen, oxygen, benzene, dimethylbenzene, ethylbenzene etc., waste gas total hydrocarbon concentration is 10000 ~ 25000 mg/m
3, oxygen content is 4% ~ 6%(V/V).
The device shown in Fig. 1 of the present invention is adopted to process.Heat-storing sphere is ceramic hollow heat-storing sphere, is of a size of φ 10mm.The time that heat-storing sphere carries out heat exchange through heat accumulating sections and heat release section is 60s.The caliber of air inlet and escape pipe is 300mm, carries out expanding, be of a size of 600mm after expanding in heat release section and heat accumulating sections, and increase gas-solid heat exchange area, the caliber of heat accumulation pipe is 80mm.Catalytic combustion adopts cellular noble metal catalyst, containing Pt 0.26wt%, Pd 0.13wt% in catalyst.Total hydrocarbon concentration due to this waste gas is 10000 ~ 25000 mg/m
3, for ensureing the safe operation of catalytic combustion reactor, therefore needing to mix air and exhaust gas concentration be diluted to 10000 mg/m
3.When reactor inlet temperatures is 230 ~ 245 DEG C, after outlet purification, gas temperature is about 560 DEG C, and after heat accumulating sections heat exchange, gas temperature drops to 350 DEG C.Heat-storing sphere by heat accumulating sections, is heated to 410 DEG C, moves to heat release section in 60s, and heating newly enters waste gas, makes waste gas be heated to 240 DEG C, reaches catalyst combustion reaction requirement.Waste gas flow velocity is 25000Nm.h
-1.Heat transfer effect is in table 1.
The heat transfer effect of heat-storing sphere heat-exchange system in table 1 embodiment
Waste gas is through catalytic combustion process, and purified gas can meet discharging standards requirement.Catalytic combustion treatment effect is in table 2.
Catalytic combustion reactor treatment effect in table 2 embodiment
Embodiment 2
One Chemical Manufacture tail gas, capacity is 2000 ~ 3000Nm
3/ h, toxic emission temperature 80 DEG C, waste gas consists of: nitrogen, oxygen, benzene, dimethylbenzene, ethylbenzene etc., waste gas total hydrocarbon concentration is 10000 ~ 25000 mg/m
3, oxygen content is 4% ~ 6%(V/V).
The device shown in Fig. 1 of the present invention is adopted to process.Heat-storing sphere is ceramic hollow heat-storing sphere, is of a size of φ 20mm.The time that heat-storing sphere carries out heat exchange through heat accumulating sections and heat release section is 30s.The caliber of air inlet pipe and escape pipe is 250mm, carries out expanding, be of a size of 600mm after expanding in heat release section and heat accumulating sections, and increase gas-solid heat exchange area, the caliber of heat accumulation pipe is 600mm.Catalytic combustion adopts cellular noble metal catalyst, containing Pt 0.26wt%, Pd 0.13wt% in catalyst.Total hydrocarbon concentration due to this waste gas is 10000 ~ 25000 mg/m
3, for ensureing the safe operation of catalytic combustion reactor, therefore needing to mix air and exhaust gas concentration be diluted to 12500 mg/m
3.When reactor inlet temperatures is 220 ~ 235 DEG C, after outlet purification, gas temperature is about 510 DEG C, and after heat accumulating sections heat exchange, gas temperature drops to 300 DEG C.Heat-storing sphere by heat accumulating sections, is heated to 400 DEG C, moves to heat release section in 30s, and heating newly enters waste gas, makes waste gas be heated to 230 DEG C, reaches catalyst combustion reaction requirement.Waste gas flow velocity is 25000Nm.h
-1.Heat transfer effect is in table 3.
The heat transfer effect of heat-storing sphere heat-exchange system in table 3 embodiment
Waste gas is through catalytic combustion process, and purified gas can meet discharging standards requirement.Catalytic combustion treatment effect is in table 4.
Catalytic combustion reactor treatment effect in table 2 embodiment
From above result, adopt heat-storing sphere heat-exchange system of the present invention, heat-exchange system operating flexibility is comparatively large, both can ensure the high-efficient purification of waste gas, again can the reaction heat of gas after reclaiming clean, realizes effective reuse of heat.
Claims (11)
1. the purification method of an organic exhaust gas, comprise following content: use portable heat-storing sphere heat-exchange system to reclaim reaction heat, heating organic exhaust gas reaches reaction temperature, and then carries out catalytic combustion process, by the harmful substance removal in waste gas under the effect of catalyst; Wherein heat-storing sphere heat-exchange system comprises heat accumulation pipe, heat-storing sphere, gear pump and heat exchanging segment, heat accumulation pipe forms closed-loop path around catalytic combustion reactor, gear pump promotes heat-storing sphere and moves at heat accumulation pipe Inner eycle, heat exchanging segment is the intersection of air inlet pipe and escape pipe and heat accumulation pipe, be divided into heat release section and heat accumulating sections, gas uses pipe network with holes to separate with the crossing cross section of heat-storing sphere.
2. method according to claim 1, is characterized in that: heat-storing sphere adopts ceramic hollow heat-storing sphere, is of a size of φ 10 ~ 20mm.
3. method according to claim 1 and 2, is characterized in that: heat-storing sphere is 20 ~ 60s through the time of heat exchanging segment.
4. method according to claim 1 and 2, is characterized in that: air inlet pipe and escape pipe carry out expanding in heat release section and heat accumulating sections, are of a size of 2 ~ 5 times of raw-gas caliber after expanding.
5. method according to claim 4, is characterized in that: air inlet pipe or escape pipe are 8:1 ~ 1:1 with the caliber ratio of heat accumulation pipe.
6. method according to claim 1, is characterized in that: in waste gas, organic concentration is 10000 ~ 12500mg/m
3, oxygen content is 1.0% ~ 10%(V/V).
7. method according to claim 1, is characterized in that: waste gas flow velocity is 20000 ~ 25000Nmh
-1.
8. method according to claim 1, is characterized in that: heat-storing sphere is in heat accumulating sections and purified gas heat exchange, and heat-storing sphere temperature is increased to 300 ~ 450 DEG C; Move to heat release section and untreated organic exhaust gas heat exchange again, EGT is increased to 200 ~ 300 DEG C.
9. method according to claim 1, it is characterized in that: catalytic combustion reactor is built with honeycomb type noble metal catalyst, and carrier is honeycomb ceramic body, it supports precious metals pt, Pd isoreactivity component, wherein containing Pt 0.2wt% ~ 0.5wt%, Pd 0.1wt% ~ 0.3wt%.
10. the method according to claim 1 or 9, is characterized in that: the inlet temperature of catalytic combustion reactor is 200 ~ 300 DEG C, and use air speed is 10000 ~ 60000h
-1; Catalytic combustion reactor outlet temperature is 400 ~ 600 DEG C.
11. methods according to claim 1, is characterized in that: frequency conversion fan selected by blower fan, control air quantity by frequency conversion fan, and make the pressure of organic exhaust gas be greater than the pressure of purified gas, air quantity is greater than exhausted air quantity; If exhaust gas concentration has exceeded the inlet gas concentration of catalytic combustion reactor, add air before preheating by blower fan, to reduce exhaust gas concentration.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105066148A (en) * | 2015-08-13 | 2015-11-18 | 中国石油化工股份有限公司 | Low-temperature heat accumulating type method for treating VOCs gas in catalytic oxidation manner |
| CN105091001A (en) * | 2015-09-01 | 2015-11-25 | 黎明化工研究设计院有限责任公司 | Waste gas burning processing equipment |
| CN105169938A (en) * | 2015-09-30 | 2015-12-23 | 马军 | Flowing particle heat exchange type organic waste gas oxidation equipment |
| CN106765218A (en) * | 2016-12-01 | 2017-05-31 | 广州市祈雅典锅炉有限公司 | VOCs waste gas comprehensive regulation heat energy utilization equipment |
| CN107152691A (en) * | 2017-06-22 | 2017-09-12 | 南京艾尔普特环保科技有限公司 | Low NOx afterburnings and the efficient minimizing technologies of VOC and system based on RTO |
| CN108031277A (en) * | 2017-12-08 | 2018-05-15 | 上海科仁实业有限公司 | Waste gas containing VOC catalytic purification processing method |
| CN110030567A (en) * | 2019-04-10 | 2019-07-19 | 中国船舶重工集团公司第七一八研究所 | A kind of organic waste gas catalytic combustion integrated apparatus |
| CN110296424A (en) * | 2019-07-30 | 2019-10-01 | 天津理工大学 | A kind of thermal oxidation method of good antiscale property fluidized bed regenerative oxidation device and VOCs gas |
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| AT380407B (en) * | 1983-10-07 | 1986-05-26 | Voest Alpine Ag | METHOD FOR REMOVING SULFUR OR SULFUR COMPOUNDS AND / OR OTHER POLLUTANTS FROM HOT REDUCING GASES AND DEVICE FOR CARRYING OUT THIS METHOD |
| CN2602817Y (en) * | 2003-03-07 | 2004-02-11 | 辽宁省轻工设计院 | Integrated treatment device for catalytic burning organic waste gas |
| CN101122422B (en) * | 2007-05-10 | 2010-12-08 | 中国科学院电工研究所 | Fluid bed high temperature heat absorber for solar energy tower type thermal generation and its heat absorbing-heat storage double fluid bed system |
| CN102049189B (en) * | 2009-10-27 | 2013-01-23 | 中国石油化工股份有限公司 | Method for purifying organic waste gas |
| CN102913918B (en) * | 2011-08-01 | 2015-06-17 | 中国石油化工股份有限公司 | Catalytic combustion processing method of high-concentration organic exhaust gas |
| DE102012019791A1 (en) * | 2012-10-04 | 2014-04-10 | Technische Universität Ilmenau | Ball circulating heat accumulator for storing heat from renewable energy sources, has balls that are used in heat exchanger, such that geometrically defined guidance of balls to closed pipes or open channels system is performed |
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| CN105091001A (en) * | 2015-09-01 | 2015-11-25 | 黎明化工研究设计院有限责任公司 | Waste gas burning processing equipment |
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| CN105169938A (en) * | 2015-09-30 | 2015-12-23 | 马军 | Flowing particle heat exchange type organic waste gas oxidation equipment |
| CN106765218A (en) * | 2016-12-01 | 2017-05-31 | 广州市祈雅典锅炉有限公司 | VOCs waste gas comprehensive regulation heat energy utilization equipment |
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| CN107152691A (en) * | 2017-06-22 | 2017-09-12 | 南京艾尔普特环保科技有限公司 | Low NOx afterburnings and the efficient minimizing technologies of VOC and system based on RTO |
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