CN104707443A - VOCs tail gas treatment apparatus - Google Patents
VOCs tail gas treatment apparatus Download PDFInfo
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- CN104707443A CN104707443A CN201510039435.1A CN201510039435A CN104707443A CN 104707443 A CN104707443 A CN 104707443A CN 201510039435 A CN201510039435 A CN 201510039435A CN 104707443 A CN104707443 A CN 104707443A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a VOCs tail gas treatment apparatus. The apparatus comprises an exhaust gas prefilter, an adsorption tank, a desorption tank and a blower, the exhaust gas prefilter is connected with the adsorption tank, the bottom of the adsorption tank is connected with a tail gas pipeline, the tail gas pipeline is divided into two paths, one path is connected with an induced draught fan, the other path is connected with a catalysis burning device through a VOCs pipeline, the bottom of the desorption tank is connected with the VOCs pipeline, the VOCs pipeline is divided into two channels, one channel is connected with the induced draught fan, the other channel is connected with the catalysis burning device, and the top of the desorption tank is connected with the burning gas flow outlet of the catalysis burning device; and the adsorption tank is connected with the desorption tank through an ACF particle circulation pipeline, the gas inlet of an external circulating pipeline is connected with a blower through a filter screen, the external circulating pipeline is connected to a stepped interlayer in the adsorption tank and a stepped interlayer in the desorption tank respectively, and ACF particles entering from an ACF particle feeding port flow through the ACF particle circulating pipeline, and are discharged from an ACF particle discharging port. VOCs (volatile organic compounds) can be effectively removed through the apparatus.
Description
Technical field
The present invention relates to a kind of atmosphere protection device, particularly relate to plastic industry plastic products produce or in use procedure discharge the technical field that volatile organic matter (VOCs) processes.
Background technology
Plastics have become the important component part in our daily life, its consumption figure is in continuous growth, and along with the continuous lifting of technical merit and development, the fast development that waste plastics recovery recycling industry also obtains, but be no matter that production or the regenerative ratio of plastic products utilizes, its process all creates more and more serious pollution to health and living environment, especially discharges volatile organic matter (volatile organic matter is called for short VOCs).VOCs creates the harm of can not ignore to the health of human body and atmospheric environment.In order to control the discharge of plastic industry VOCs, plastic industry is strengthened to the technological transformation of existing enterprise, especially treatment technology is absorbed, timely rectification changes the standard-requireds such as saturated adsorbent activated carbon all in continuous raising, but it is low that existing VOCs treatment technology also exists efficiency, resource and the secondary pollution problems of the not high and at substantial of clearance are difficult to meet these increasingly serious standard-requireds.
Summary of the invention
In view of the problems referred to above faced in current plastic processing industry VOCs process field, the object of the invention is to design and a kind ofly realize efficient, energy-saving and environmental protection, VOCs treatment facility that reliability is strong.
The object of the present invention is achieved like this, described a kind of VOCs tail gas treatment device, comprise waste gas prefilter, adsorption tanks, desorption tank, catalytic combustion system, air-introduced machine, ACF particles circulating pipeline and air blast, it is characterized in that: described waste gas prefilter connects adsorption tanks, be connected with exhaust pipe bottom adsorption tanks, exhaust pipe divides two-way, wherein a road connects air-introduced machine, another road connects catalytic combustion system through VOCs pipeline, described desorption pot bottom is connected with VOCs pipeline, VOCs pipeline divides two-way, one road connects air-introduced machine, another road connects catalytic combustion system, desorption tank top to export with the combustion-gas flow of catalytic combustion system through hot gas duct and is connected, be connected by ACF particles circulating pipeline between adsorption tanks with desorption tank, described ACF particles circulating pipeline is by outer loop pipeline, stepped interlayer in adsorption tanks, stepped interlayer in desorption tank, filter screen and air blast form, the stepped interlayer in adsorption tanks received by air blast after filtration screen cloth after connecing the outer loop pipeline of adsorption tanks side, to access the stepped interlayer in desorption tank again through the outer loop pipeline between adsorption tanks and desorption tank from the stepped interlayer in adsorption tanks, in the closed circuit that the outer loop pipeline of outer loop pipeline and adsorption tanks side that the stepped interlayer in last desorption tank is communicated with desorption tank side is formed, the outer loop pipeline being positioned at adsorption tanks side is connected with ACF particle charge door, the outer loop pipeline being positioned at desorption tank side is connected with ACF particle discharging opening, the ACF grain flow entered from ACF particle charge door can from ACF particle discharge hole for discharge after ACF particles circulating pipeline.
Stepped interlayer in described adsorption tanks, the stepped interlayer in desorption tank are made up of top sieve stratum reticulare, middle screen layer and lower screen cloth layer, top sieve stratum reticulare, lower screen cloth layer are complete circular metal sheet material screen layer, and intermediate layer is the sheet material screen layer of 3/4ths circles.
Described intermediate layer adopts one deck or is stacked by certain distance between multi-layer phase and combines, and when intermediate layer is sandwich construction, installs for every layer by certain gradient.
The can body of described adsorption desorption tank offers the visualization window of formula able to turn on or off.
Volatile organic matter is removed through waste gas air filter and is drawn in the stepped interlayer of adsorption tanks after impurity by described air-introduced machine, and the middle screen layer in stepped interlayer in adsorption tanks is distributed with ACF particle, ACF particle adsorbs the volatile organic matter in the waste gas entered in adsorption tanks, the ACF particle that air blast makes on the one hand to be adsorbed with volatile organic matter from the stepped interlayer in adsorption tanks in screen layer in the stepped interlayer of desorption tank in screen cloth interflow, on the other hand the ACF particle in outer loop pipeline is blown in adsorption tanks, the volatile organic matter that the ACF particle moved from adsorption tanks adsorbs is resolved by the heat steam introduced from catalytic combustion system at the ACF particle being adsorbed with volatile organic matter entering screen layer in the stepped interlayer in desorption tank, thus volatile organic matter is got off from desorption ACF particle, the volatile organic matter gas that desorption gets off in desorption tank expanded by heating and through VOCs pipeline enter into catalytic combustion system burning purification eliminate, the closed circuit that the ACF particle of the desorption in desorption tank is formed by the outer loop pipeline of desorption tank side and the outer loop pipeline of adsorption tanks side and get back to adsorption tanks.
Advantage of the present invention is: the present invention adopts carbon fiber adsorption and catalytic combustion-Production by Catalytic Combustion Process, devise NACF (Activated Carbon Fiber dexterously, be called for short ACF) granule interior circulation adsorption desorption technique, there is equipment volume little, lightweight, reliability of reducing investment outlay is strong, simple to operate, be convenient to safeguard, the advantages such as rapidly and efficiently low consumption.Under the driving of the saturated heat steam of 0.1MPa, the VOCs that ACF particle is adsorbed in desorption tank by under desorption.In this process, adsorption tanks and desorption tank can carry out adsorption desorption work simultaneously respectively, without the need to waiting for or successively operation.ACF particle in adsorption tanks adsorbs the VOCs composition in the waste gas of access arrangement, and ACF particle flows to desorption tank in this course.Resolve from the VOCs that the ACF particle of adsorption tanks adsorbs by introducing heat steam in desorption tank, thus volatile organic matter is got off from desorption adsorbent (ACF) particle.ACF particle flows to adsorption tanks in this course, and VOCs gas is because expanded by heating upwards volatilizees, and finally arrives catalytic combustion system, thus is cleaned elimination.Described vapours is produced from burning in catalytic combustion system by VOCs, owing to being steam desorption, temperature in desorption tank can reach the design temperature 100 DEG C of desorption very soon, and the organic matter that ACF particle adsorbs is discharged by rapid desorption equably gradually.Described ACF particle flow flows between adsorption desorption tank under the high wind effect of air blast, carries out cycle operation, economize on resources.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation (air inlet with desorption tank goes out gas-bearing formation) of the air inlet layer in the adsorption tanks in Fig. 1.
Fig. 3 is the structural representation (each intermediate layers with adsorption tanks) in the intermediate layer in the desorption tank in Fig. 1.
Fig. 4 to be the mounting inclination angle degree of each layer in the adsorption desorption tank in Fig. 1 be structure for amplifying schematic diagram of 1 degree.
In figure, 1 is waste gas air filter, and 2 is adsorption tanks, 3 is desorption tanks, and 4 is hot gas ducts, and 5 is catalytic combustion systems, 6 is VOCs pipelines, and 7 is air-introduced machines, and 8 is exhaust pipes, 9 is ACF particle discharging openings, 10 is air blasts, and 11 is filter screens, and 12 is ACF particles circulating pipelines, 13 is ACF particle charge doors, and 14 is visual windows.
Detailed description of the invention
As shown in Figure 1, a kind of VOCs tail gas treatment device of the present invention, this device mainly includes waste gas prefilter 1, adsorption tanks 2(number can be set up according to demand), catalytic combustion system 5, desorption tank 3(number can set up according to demand), air-introduced machine 7, ACF particles circulating pipeline 12 and air blast 10 etc. are combined into an integrated apparatus, convenient transport and installing.Its design feature is that described waste gas prefilter 1 connects adsorption tanks 2, be connected with exhaust pipe 8 bottom adsorption tanks 2, exhaust pipe 8 points of two-way, wherein a road connects air-introduced machine 7, another road connects catalytic combustion system 5 through VOCs pipeline 6, be connected with VOCs pipeline 6 bottom described desorption tank 3, VOCs pipeline 6 points of two-way, one road connect air-introduced machine 7, another road connects catalytic combustion system 5, and desorption tank 3 top to export with the combustion-gas flow of catalytic combustion system 5 through hot gas duct 4 and is connected, be connected by ACF particles circulating pipeline 12 between adsorption tanks 2 with desorption tank 3, described ACF particles circulating pipeline 12 is by outer loop pipeline, stepped interlayer in adsorption tanks, stepped interlayer in desorption tank, filter screen 11, ACF particle and air blast 10 form, the air inlet of outer loop pipeline after filtration screen cloth 11 connects air blast 10, outer loop pipeline receives the stepped interlayer in adsorption tanks respectively, stepped interlayer in desorption tank, the stepped interlayer in adsorption tanks received by air blast 10 after filtration screen cloth 11 after connecing the outer loop pipeline of adsorption tanks 2 side, to access the stepped interlayer in desorption tank again through the outer loop pipeline between adsorption tanks 2 and desorption tank 3 from the stepped interlayer in adsorption tanks, stepped interlayer in last desorption tank forms closed circuit by the outer loop pipeline of desorption tank 3 side and the outer loop pipeline of adsorption tanks 2 side, the outer loop pipeline being positioned at adsorption tanks 2 side is connected with ACF particle charge door 13, the outer loop pipeline being positioned at desorption tank 3 side is connected with ACF particle discharging opening 9, stepped interlayer in described adsorption tanks, the stepped interlayer in desorption tank are made up of top sieve stratum reticulare, middle screen layer and lower screen cloth layer, top sieve stratum reticulare, lower screen cloth layer are complete circular metal sheet material screen layer, intermediate layer is the sheet material screen layer of 3/4ths circles, intermediate layer can be that one or more layers alternate certain distance stacks combination, see Fig. 2 and Fig. 3, it is respectively the structural representation of the intermediate layer B in the structural representation of the air inlet layer A in adsorption tanks and desorption tank.Described VOCs removes after impurity through waste gas air filter and makes it to enter adsorption tanks 2 by air-introduced machine 7, waste gas is drawn discharge by air-introduced machine 7, and the ACF particle in stepped interlayer in adsorption tanks 2 adsorbs the VOCs composition in the waste gas entered in adsorption tanks 2, make ACF particle through the stepped interlayer flowing of outer loop pipeline from the stepped interlayer of adsorption tanks 2 to desorption tank 3 by air blast 10 in this course, by introducing heat steam, the VOCs that the ACF particle moved from adsorption tanks 2 adsorbs is resolved in desorption tank 3, thus volatile organic matter (VOCs) is got off from desorption adsorbent (ACF) particle, and VOCs gas volatilizees because of expanded by heating in the stepped interlayer of desorption tank 3, catalytic combustion system 5 is entered through VOCs pipeline 6, thus burned purification is eliminated, described vapours is produced from burning in catalytic combustion system 5 by VOCs, owing to being steam desorption, temperature in desorption tank can reach the design temperature 100 DEG C of desorption very soon, the volatile organic matter (VOCs) that ACF particle adsorbs is discharged by rapid desorption equably gradually.Described ACF particle flow flows between adsorption desorption tank under the high wind effect of air blast, carries out cycle operation, economize on resources.Because the vapours pressure in desorption tank 3 is large, therefore the air blast of air blast 10 can not enter desorption tank 3 from the outer loop pipeline of desorption tank 3 side, can only enter adsorption tanks 2 from the outer loop pipeline of adsorption tanks 2 side.
1) impurity particle of air mainly removed by the waste gas prefilter 1 described in.Be mixed with the granule dust varied in size in VOCs organic exhaust gas, before organic exhaust gas enters adsorption tanks, thoroughly must remove through pretreating device.
2) be provided with multi-deck screen stratum reticulare in the adsorption tanks 2 described in and desorption tank 3, form ACF particles circulating path.Highest and lowest two layer screen stratum reticulare is that complete circular metal sheet material screen layer moves apart adsorption tanks 2 and desorption tank 3 to prevent ACF particle, middle each layer is the sheet material screen layer of 3/4ths circles, the step structure that communicates up and down is formed between each layer, every layer of circular metal sheet material screen layer is fixedly mounted on suction, on desorption top tank structure, and be that (setting angle can adjust according to actual at 1 ° of angle with level, concrete mounting means is shown in Fig. 4), so, can ensure that ACF particle realizes circulation smoothly by Gravitative Loads in pipeline, also to ensure that waste gas is smoothly by circulation road strength simultaneously.In addition, the can body of adsorption tanks 2 and desorption tank 3 offers glass respectively can open type visualization window, so that the monitoring of ACF particles circulating pipeline 12 and maintenance.
3) catalytic combustion system 5 described in is made up of heat exchanger, preheating chamber and combustion chamber, desorption air-flow and the fraction after absorption mix merga pass catalytic bed catalytic combustion, are transformed into harmless CO and H O(heteroatomic organic compounds and also have other combustion product).These combustion products directly enter in desorption tank 3 as vapours and carry out ACF particle hot-air desorption and regeneration.After VOCs catalytic combustion, thermal discharge is large, and certain density organic gas can maintain spontaneous combustion state in catalytic bed.Therefore, desorption is without the need to another heating source.Catalytic combustion purification efficiency is high, non-secondary pollution, and the vapours that its burning can be utilized to produce, carries out desorption and regeneration to the saturated ACF particle in desorption tank, thus reaches the object that Waste Heat Reuse saves the energy.
4) the ACF particles circulating pipeline 12 described in is made up of the stepped interlayer in outer loop pipeline, adsorption desorption tank, filter screen 11, ACF particle and air blast 10 etc.Inside and outside closed loop path forms ACF particles circulating pipeline 12, and on external pipe, offer ACF particle charge door 13 and the ACF particle discharging opening 9 of formula ACF particle able to turn on or off, can carry out the ACF amounts of particles in controlled circulation pipeline according to the growing amount of waste gas.Described ACF granular mass is comparatively light, under the high wind effect of air blast 10, can form the continuous circulation of adsorption-desorption regeneration in ACF particles circulating pipeline 12.Between described air blast 10 and ACF particles circulating pipeline 12, be provided with the metallic sieve that one deck order number is larger, thus prevent ACF particle to enter into the potential safety hazard produced in air blast 10, do not affect again the air quantity conveying of air blast 10 simultaneously; Because the vapours pressure in desorption tank 3 is large, therefore the air blast of air blast 10 can not enter desorption tank 3 from the outer loop pipeline of desorption tank 3 side, can only enter adsorption tanks 2 from the outer loop pipeline of adsorption tanks 2 side.
5) the ACF particle described in the comparatively sorbing material such as traditional active carbon is compared, there is specific area large, effective adsorption capacity is high, and adsorption and desorption is fast, consumes energy low, regenerating easily, intensity is high, the life-span is long, do not produce secondary pollution, adsorbable light concentration gas, and adsorptive selectivity is strong, various shapes, is convenient to the advantages such as engineer applied.NACF Heat stability is good (ignition temperature >=500 DEG C; and granular activated carbon ignition temperature is 300 DEG C); absorption/desorption cycles is short; Gu the adsorbent mass of filling is few in each adsorption tanks; adsorption layer thin (being generally 30mm); add that the thermal capacity of NACF is low, therefore adsorbent bed can not be produced during desorption to heat up too high problem.
6) tail gas not containing VOCs dusty gas after a large amount of ACF granular absorption is carried out drainage by the air-introduced machine described in, and a part is discharged in air and goes, and a part compensates as cold wind (oxygen) and is fed in catalytic combustion system.
7) according to different volatile organic matters, the adsorption desorption material of replaceable respective type and deep oxidation catalyst, ensure efficient adsorption desorption and catalytic combustion, thus realize whole adsorption desorption and automatically realize.
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (5)
1. a VOCs tail gas treatment device, comprise waste gas prefilter (1), adsorption tanks (2), desorption tank (3), catalytic combustion system (5), air-introduced machine (7), ACF particles circulating pipeline (12) and air blast (10), it is characterized in that: described waste gas prefilter (1) connects adsorption tanks (2), adsorption tanks (2) bottom is connected with exhaust pipe (8), exhaust pipe (8) point two-way, wherein a road connects air-introduced machine (7), another road connects catalytic combustion system (5) through VOCs pipeline (6), described desorption pot bottom is connected with VOCs pipeline (6), VOCs pipeline (6) point two-way, one road connects air-introduced machine (7), another road connects catalytic combustion system (5), desorption tank (3) top to export with the combustion-gas flow of catalytic combustion system (5) through hot gas duct (4) and is connected, be connected by ACF particles circulating pipeline (12) between adsorption tanks (2) with desorption tank (3), described ACF particles circulating pipeline (12) is by outer loop pipeline, stepped interlayer in adsorption tanks, stepped interlayer in desorption tank, filter screen (11) and air blast (10) form, the stepped interlayer in adsorption tanks received by air blast (10) after filtration screen cloth (11) after connecing the outer loop pipeline of adsorption tanks side, to access the stepped interlayer in desorption tank again through the outer loop pipeline between adsorption tanks and desorption tank (3) from the stepped interlayer in adsorption tanks, in the closed circuit that the outer loop pipeline of outer loop pipeline and adsorption tanks (2) side that the stepped interlayer in last desorption tank is communicated with desorption tank (3) side is formed, the outer loop pipeline being positioned at adsorption tanks (2) side is connected with ACF particle charge door (13), the outer loop pipeline being positioned at desorption tank (3) side is connected with ACF particle discharging opening (9), the ACF grain flow entered from ACF particle charge door (13) can from ACF particle discharge hole for discharge after ACF particles circulating pipeline (12).
2. a kind of VOCs tail gas treatment device according to claim 1, it is characterized in that: the stepped interlayer in described adsorption tanks, the stepped interlayer in desorption tank are made up of top sieve stratum reticulare, middle screen layer and lower screen cloth layer, top sieve stratum reticulare, lower screen cloth layer are complete circular metal sheet material screen layer, and intermediate layer is the sheet material screen layer of 3/4ths circles.
3. a kind of VOCs tail gas treatment device according to claim 2, is characterized in that: described intermediate layer adopts one deck or stacked by certain distance between multi-layer phase and combines, and when intermediate layer is sandwich construction, installs for every layer by certain gradient.
4. a kind of VOCs tail gas treatment device according to claim 2, is characterized in that: the visualization window can body of described adsorption desorption tank offering formula able to turn on or off.
5. a kind of VOCs tail gas treatment device according to claim 3, it is characterized in that: volatile organic matter is removed through waste gas air filter (1) and is drawn in the stepped interlayer of adsorption tanks (2) after impurity by described air-introduced machine (7), and the middle screen layer in stepped interlayer in adsorption tanks is distributed with ACF particle, ACF particle adsorbs the volatile organic matter in the waste gas entered in adsorption tanks (2), the ACF particle that air blast (10) makes on the one hand to be adsorbed with volatile organic matter from the middle screen layer the stepped interlayer in adsorption tanks (2) to the stepped interlayer of desorption tank (3) in middle screen cloth interflow, on the other hand the ACF particle in outer loop pipeline is blown in adsorption tanks (2), resolved from the volatile organic matter that the mobile ACF particle of coming of adsorption tanks (2) adsorbs by the heat steam introduced from catalytic combustion system (5) at the ACF particle being adsorbed with volatile organic matter entering the middle screen layer in the stepped interlayer in desorption tank (3), thus volatile organic matter is got off from desorption ACF particle, the volatile organic matter gas that desorption gets off enters into catalytic combustion system (5) burning purification at the middle expanded by heating of desorption tank (3) through VOCs pipeline (6) and eliminates, the closed circuit that the ACF particle of the desorption in desorption tank (3) is formed by the outer loop pipeline of desorption tank (3) side and the outer loop pipeline of adsorption tanks (2) side and get back to adsorption tanks (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510039435.1A CN104707443A (en) | 2015-01-27 | 2015-01-27 | VOCs tail gas treatment apparatus |
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| CN201510039435.1A CN104707443A (en) | 2015-01-27 | 2015-01-27 | VOCs tail gas treatment apparatus |
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| CN104707443A true CN104707443A (en) | 2015-06-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817214A (en) * | 2016-05-09 | 2016-08-03 | 武汉旭日华科技发展有限公司 | Concentrated continuous adsorbing material regeneration device and method |
| CN106090948A (en) * | 2016-08-26 | 2016-11-09 | 罗建君 | A kind of industry VOCs exhaust treatment system |
| CN106861363A (en) * | 2017-04-22 | 2017-06-20 | 杨松 | A kind of application method of purifying VOCs waste gas spiral step fin tower |
| CN107433132A (en) * | 2017-09-06 | 2017-12-05 | 哈尔滨工程大学 | A kind of boat diesel engine tail gas nitrogen oxide removing means and removal methods |
| CN109589745A (en) * | 2018-10-22 | 2019-04-09 | 南京大学环境规划设计研究院股份公司 | Can on-line measurement VOCs concentration VOCs adsorption plant |
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2015
- 2015-01-27 CN CN201510039435.1A patent/CN104707443A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817214A (en) * | 2016-05-09 | 2016-08-03 | 武汉旭日华科技发展有限公司 | Concentrated continuous adsorbing material regeneration device and method |
| CN105817214B (en) * | 2016-05-09 | 2019-02-19 | 武汉旭日华科技发展有限公司 | A kind of concentration continuous type regneration of adsorbent material device and method |
| CN106090948A (en) * | 2016-08-26 | 2016-11-09 | 罗建君 | A kind of industry VOCs exhaust treatment system |
| CN106861363A (en) * | 2017-04-22 | 2017-06-20 | 杨松 | A kind of application method of purifying VOCs waste gas spiral step fin tower |
| CN107433132A (en) * | 2017-09-06 | 2017-12-05 | 哈尔滨工程大学 | A kind of boat diesel engine tail gas nitrogen oxide removing means and removal methods |
| CN107433132B (en) * | 2017-09-06 | 2020-09-25 | 哈尔滨工程大学 | Device and method for removing nitrogen oxides in tail gas of marine diesel engine |
| CN109589745A (en) * | 2018-10-22 | 2019-04-09 | 南京大学环境规划设计研究院股份公司 | Can on-line measurement VOCs concentration VOCs adsorption plant |
| CN109589745B (en) * | 2018-10-22 | 2019-10-01 | 南京大学环境规划设计研究院股份公司 | Can on-line measurement VOCs concentration VOCs adsorption plant |
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Application publication date: 20150617 |
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