CN102302883B - Method and shifting unit for processing chemical-industrial emissions - Google Patents
Method and shifting unit for processing chemical-industrial emissions Download PDFInfo
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- CN102302883B CN102302883B CN201110172493.3A CN201110172493A CN102302883B CN 102302883 B CN102302883 B CN 102302883B CN 201110172493 A CN201110172493 A CN 201110172493A CN 102302883 B CN102302883 B CN 102302883B
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Abstract
The invention discloses a method and shifting unit for processing chemical-industrial emissions, belonging to the technical field of chemical-industrial environmental protection, which is used for solving the problems of disorder emission of pollutants, such as blowing-sweeping emission, emergency emptying and the like of chemical-industrial devices. According to the invention, gravity settlement, centrifugal separation and cooling separation methods are adopted to carry out gas-liquid-solid separation on the emissions, so that waste liquor and waste residue are drained according to classification; a solvent absorption method, an adsorption method and a dilution and diffusion method are adopted to carry out purification processing on drained tail gases and then the tail gases are drained according to the standard. The method and shifting unit for processing the chemical-industrial emissions also have the functions of additive-mixing, silencing and gas-conducting. According to the invention, processing equipment and connecting pipes among equipment are properly connected and then are mounted on a public chassis to form an overall device; and the overall device is combined with a shifting facility, so that the overall device can rapidly shift and be used. The method and shifting unit for processing the chemical-industrial emissions have the advantages of strong universality, good processing effect and low operating cost; some disorder emissions of the chemical-industrial devices are relatively perfectly changed into controlled order emissions; and an effective guarantee for the safe and clean production of the chemical-industrial devices is provided.
Description
Technical field
The invention belongs to environmental protection technical field, relate to a kind of method of processing chemical-industrial emissions, particularly relate to a kind of method of chemical-industrial emissions separation and emission processing, and implement the method device used.
Background technology
Chemical plant installations (comprising petrochemical industry and oil refining apparatus) generally has the collection processing system implementing of waste gas, waste liquid and waste residue, and " three wastes " that in production process, produce are carried out to Closed Drain, collection and safe handling.But due to a variety of causes, also there are some situations of environmental emission pollutant towards periphery in chemical plant installations, wherein larger the having of impact: shutting down maintenance purges discharge, trouble hunting purges discharge, produces emergent emptying etc.
Chemical plant installations has been considered purging, emptying and the discharge opeing of equipment and pipeline in the time of design, is provided with and purges joint, release, drainage point and emergent emptying point, for the processing under the shutting down, production, maintenance and the accident condition that install.Chemical plant installations must discharge the processing medium in device before shut-down (breakdown) mainteance as far as possible, then the residual process medium in equipment or pipeline is cleaned and is purged totally, reaches after security regulations requirement, can overhaul; In most of the cases, the processing medium that will drain completely in equipment, pipeline is impossible, need to be according to selected different cleaning agents and blowing medium by blowing medium, as solvent, steam, hot water, water, air, inert gas etc., utilize and purge joint, step by step the residue in equipment or pipeline is cleaned and purged, owing to processing purging emission by hermetic reclaim, can only discharge on the spot by release or drainage point.When some equipment fault maintenance in chemical plant installations production, pipeline construction are met and discussed, need equally to purge discharge.The emergent emptying of chemical plant installations under production accident state, in the time can not being disposed to gas sampling treatment system, will, by emergent emptying point, directly be disposed to atmosphere.The generation of above-mentioned situation, can produce that harsh noise, dust or steam fill the air, serious foul odour, sewage crossing current; Serious have that solid piece splashes and the loss of Toxic, threaten personal safety, even cause large-scale environmental pollution.
Release, drainage point and the emergent emptying point of chemical plant installations, be chemical pollution thing uncontrollable discharge source, is characterized in that emission point is many, dispersion zone is large.It is emission complicated component that chemical plant installations shutting down, trouble hunting purge Drainage feature, emission has gas, steam, liquid, dust and solid impurity etc., and discharge capacity difference is large, and the temperature contrast of emission is large, the pressure gap of emission is large, and discharge back pressure is generally normal pressure.Chemical plant installations is produced the time of emergent emptying generation mostly in shutting down stage or fluctuation stage, and by emergency services such as safety valves, at height point, process gas is discharged atmosphere by place.
At present, not yet there is a kind of good method to solve that chemical plant installations shutting down maintenance purges discharge, trouble hunting purges discharge, produces the environmental pollution problem that emergent emptying causes, therefore in the urgent need to developing a kind of highly versatile, anti-impact force is strong, treatment effect good and operating cost is low processing chemical-industrial emissions method and apparatus.
Summary of the invention
The method and the mobile device that the invention provides a kind of airtight collection, processing chemical-industrial emissions, for solving the problem of the uncontrollable discharge pollutants such as the purging discharge of current chemical plant installations existence, emergent emptying, make it to become controlled discharge in a organized way.
A kind of method of processing chemical-industrial emissions provided by the invention, is characterized in that comprising the following steps:
(A) an interim pipeline being installed is connected the emission point of chemical-industrial emissions with pipe-line mixer, additive mixes in pipe-line mixer with chemical-industrial emissions, mixture is through muffler, be disposed in collecting tank, mixture carries out gravity settling separation, and slag net is set in collecting tank, and solid impurity is removed from cinder cleaning hole, liquid enters sewer pipe, and gas is introduced separator;
(B) gas centrifugation in separator, the dirt of separation enters sewer pipe, and gas enters heat exchanger;
(C) heat exchanger refrigerating gas, condensate liquid enters sewer pipe, and incoagulability tail gas enters tail gas absorber portion;
(D) tail gas absorber portion subregion absorption cleaning tail gas, the tail gas after absorption enters tail gas adsorption section;
(E) tail gas adsorption section adsorption cleaning tail gas, the tail gas after purification enters blast pipe;
(F) exhaust pipe lower part adopts air blast to blow in blast pipe, the tail gas of drainage and dilution discharge.
A kind of mobile device of processing chemical-industrial emissions provided by the invention, comprise public chassis, it is characterized in that: collecting tank, separator, heat exchanger, tail gas absorber portion, tail gas adsorption section are installed on described public chassis, between each equipment, connect with pipeline, the inside of described collecting tank is provided with muffler, and this muffler is connected with pipe-line mixer, described tail gas adsorption section is connected with blast pipe, the bottom of this blast pipe is connected with air blast, and described tail gas absorber portion is furnished with solvent pump, and connects with pipeline.
Described pipe-line mixer is venturi-type blender or jet pump.
Described collecting tank is a cylinder tank, and there is slag net its inside, and its tank skin is provided with cinder cleaning hole (1d).
Described heat exchanger is spiral heat exchanger, is arranged on described collecting tank top.
Described separator is many cyclone separator parallel connections, and is placed in the one end on public chassis together with described collecting tank, heat exchanger.
Described tail gas absorber portion is a rectangular casing, casing one side leaves multiple uniform gas inlets, box house adopts partition panel and demister to be divided into multiple uptake zones, in each uptake zone, adopt dividing plate to be divided into multiple rectangle air flues, each rectangle air flue top is all provided with solvent shower and atomizer, middle part arranges porous pallet or filler, bottom is the solvent liquid storage area being interconnected, the solvent of each uptake zone is by solvent pump circulated sprinkling separately, the end of tail gas absorber portion is a boss, demister is installed in boss, described tail gas absorber portion is placed in the middle part on public chassis.
Described tail gas adsorption section is made up of many adsorption tanks, and is arranged on the end boss of tail gas absorber portion.
The solvent pump of described air blast, each uptake zone is installed the other end on public chassis concentratedly.
The present invention has following beneficial effect: first, for the different emission of chemical plant installations emission point and conditions of discharge, the present invention selects pipe-line mixer to add injecting additive, improves security and treatment effect that this device is processed; The noise producing while selecting muffler to reduce discharge; Adopt gravitational settling, centrifugation, refrigerated separation method, carry out the gas-liquid-solid separation of emission, emission can be classified and reclaim or discharge; Adopt solvent absorption, adsorbent absorption method and dilution diffusion method, purified treatment emission, guarantees tail gas qualified discharge; Adopt air blowing drainage tail gas, can make this device portal pressure approach normal pressure, can not affect the discharge of emission point.Therefore highly versatile of the present invention, treatment effect are good, uncontrollable discharge can be become to controlled discharge in a organized way, have greatly reduced the pollution that chemical plant installations emission causes surrounding environment.Its two devices can fast moving also come into operation fast, can successfully manage chemical plant installations and discharge multi-point and wide-ranging present situation, are especially applicable to using under chemical plant installations maintenance, accident condition, and use cost is low.Its three devices adopt the little large rectangle air flue of cyclone separator, spiral heat exchanger and circulation area of gas flow resistance, the impact producing can successfully manage atm number discharge time.
Accompanying drawing explanation
Fig. 1: the schematic diagram that is a kind of chemical-industrial emissions processing method of the present invention.
Fig. 2: the top view that is a kind of portable chemical-industrial emissions treating apparatus of the present invention.
Fig. 3: the A-A view that is a kind of portable chemical-industrial emissions treating apparatus of the present invention.
In figure: double dot dash line represents this device scope boundary line; Many parallel empty fine rule express liquids; Wave represents disconnected principal vertical line; Textual representation passes in and out the medium of this device; Arrow represent MEDIA FLOW to.
The specific embodiment
The inventor is through research extensively and profoundly, purge the feature of discharge and emergent emptying for chemical plant installations, draw following technical conceive: in chemical plant installations shutting down, the trouble hunting stage, and may there is producing stage of emergent emptying, we can be by installing some interim pipelines, airtight emission being collected in a kind of device of processing chemical-industrial emissions processed, isolated waste liquid and waste residue, the classification that our factory can process enters the collection processing system implementing in factory, the not treatable waste liquid in our factory and waste residue can category set in, give the environmental protection treatment contractor of qualification, waste gas purification body is processed rear discharge up to standard, make uncontrollable discharge become controlled discharge in a organized way.Concrete technical scheme is as follows:
As shown in Figure 1, an interim pipeline is installed to be connected emission point with pipe-line mixer 1a, pipe-line mixer 1a is used for adding injecting additive and mixes with discharge medium, prevent the generation of the situations such as emission solidifies, chemical reaction, also can be used for chilling, eliminate dust, improve security and treatment effect that this device is processed.Emission inlet tube end in collecting tank 1 of the present invention is installed muffler 1b, the noise producing when eliminating exhaust venting; Emission reduces at the interior flow velocity of collecting tank 1, the liquid that proportion is larger and solid gravitational settling are in collecting tank 1 bottom, collecting tank 1 bottom arranges slag net 1c, interception solid impurity and fibrous impurity, also can be used for Froth simultaneously, impurity regularly by cinder cleaning hole 1d place remove, liquid enters sewer pipe 22 from leakage fluid dram 1e, gas from exhaust outlet 1f to separator 2 entrance 2a.Gas, droplet and grit separate under centrifugal action, and liquid entrainment grit self-separation device 2 sewage draining exit 2c enter sewer pipe 22, and gas enters the gas access 3a of heat exchanger 3 from exhaust outlet 2b.Gas carries out heat exchange with recirculated water in heat exchanger 3, and condensate liquid enters sewer pipe 22 from condensate drain mouth 3c, and incoagulability tail gas causes tail gas absorber portion 4 from the tail gas outlet 3b of heat exchanger 3.Above-mentioned isolated liquid is concentrated in sewer pipe 22, preferentially enters the waste collection system in factory.
As shown in Figure 1, tail gas absorber portion 4 is rectangular casings, casing front end leaves multiple uniform gas inlet 4a, and box house adopts partition panel 4b and upper end demister 4c that tail gas absorber portion 4 is separated into multiple uptake zones, has only represented two uptake zones in figure.In each uptake zone, adopt dividing plate 4d to be divided into multiple coffins, each rectangle top is all provided with solvent shower 4e and atomizer 4f, bottom is the solvent liquid storage area being interconnected, and the solvent of each uptake zone passes through solvent pump (solvent pump I 5 or solvent pump II 6) circulated sprinkling separately.Tail gas passes through gas service pipes, equivalent is distributed exhaust flow, enter tail gas absorber portion 4 from multiple gas inlet 4a, in multiple coffins, carrying out successively U-shaped flows, carry out contact mass transfer with the solvent of spray, the present invention preferably arranges porous pallet 4g in the rectangular channel of gas-liquid counter current, filler 4h is set in the rectangular channel of gas-liquid following current, the uniformity distributing for improving tail gas, strengthen gas-liquid mass transferring area, increase solvent absorption efficiency, the tail gas after multiple-stage solvent absorbs, through demister 4i, enters tail gas adsorption section 7.Because chemical plant installations emission kind is many, the tail gas after solvent absorption may also contain harmful substance, is provided with tail gas adsorption section 7 for this reason, and tail gas adsorption section 7 is used by multiple adsorption tanks are in parallel.Tail gas after adsorption cleaning enters blast pipe 8, at the height of release qualified discharge tail gas of environmental requirement.For the discharge back pressure that guarantees chemical plant installations emission point can not raise because having increased this device; and tail gas discharges smoothly; the preferred method of the present invention is to adopt air blast 9 to blow to blast pipe 8; be similar to and spray air-breathing manufacture vacuum; be that vacuum is pulled out gas; also played the effect of dilution diffusion, guaranteed that the exhaust emissions of controlled point is no more than environment protectment protection simultaneously.
For chemical plant installations emission point, emergent emptying point is many, the feature that dispersion zone is large, and each chemical enterprise overhauls the few feature of number when the period concentrates and year occurs, the present invention is preferably by pipe-line mixer 1a, collecting tank 1, separator 2, heat exchanger 3, tail gas absorber portion 4, solvent pump I 5 and solvent pump II 6, tail gas adsorption section 7, blast pipe 8, air blast 9 is arranged on a public chassis 10, and connecting pipe between the said equipment is connected, become a single unit system, and single unit system is combined with MOVING STRUCTURE, become a packaged type chemical-industrial emissions treating apparatus, its appearance and size and gross mass meet China's " road vehicle contour dimension, axle load and quality limit value " (GB1589-2004) requirement, convenient between each chemical enterprise, and fast moving and use between emission point in chemical plant installations, improve this utilization ratio of device.Such as single unit system appearance and size can be manufactured according to 45 forty equivalent unit 40 high cube container appearance and sizes (length × wide × high numerical value is 13.58 × 2.34 × 2.71 meters), extremely convenient and haulage vehicle combination.The present invention, in the following manner by a kind of method of processing chemical-industrial emissions, is embodied as a single unit system.
As shown in Figures 2 and 3, the preferred venturi-type blender of the present invention or injector be as pipe-line mixer 1a, small and exquisite, the simple in structure and good mixing effect of its volume.Collecting tank 1 is a large diameter cylinder tank preferably, and tank diameter approaches public chassis 10 width, and object is to reduce to greatest extent the flow velocity of emission, is beneficial to gravity settling separation, strengthens the impact resistance of this device.Heat exchanger 3 is the spiral-plate heat exchanger of a non-disconnectable formula band semicircle cylindrical shell preferably, vertical collecting tank 1 top that is arranged on, spiral-plate heat exchanger fluid resistance is little, good heat-transfer, compact conformation, and roll bending width is that 1 meter, diameter are the spiral-plate heat exchanger of 2 meters, and heat exchange area can be up to 200 square metres.Preferably two minor diameter cyclone separators are in parallel uses for separator 2, the impact that advantage is high-efficiency low-resistance, produce can tackle atm number discharge time, and two cyclone separator symmetries are arranged on the arc chord angle termination that public chassis 10 and cylinder collecting tank 1 form.Tail gas absorber portion 4 is a rectangular box body structure preferably, its end is a boss, preferably two adsorption tanks without low head are as tail gas adsorption section 7, symmetry is arranged on tail gas absorber portion 4 end boss, tail gas absorber portion 4 and 7 integral installations of tail gas adsorption section are at the middle part on public chassis 10, object is the physical dimension that increases to greatest extent tail gas absorber portion 4 and tail gas adsorption section 7, improves tail gas clean-up effect, reduces gas flow resistance.Blast pipe 8 is arranged in the middle of two adsorption tanks, and blast pipe 8 is Combined exhaust air pipe, can on-the-spot rapid-assembling, and to meet the exhaust emissions height of requirement and environmental requirement of road transport.Power-equipment (solvent pump I 5, solvent pump II 6, air blast 9) is installed concentratedly at public chassis 10 ends, is conducive to centrally connected power supply and operation.
In actual use, by a kind of the present invention chemical-industrial emissions treating apparatus, move to a certain emission point place, as shown in Figure 1, emission point is connected with pipe-line mixer 1a with an interim pipeline, sewer pipe 22 is caused to the waste collection system in factory with an interim pipeline, assemble the height of release of blast pipe 8 to regulation, and connect additive pipe, recirculated cooling water inlet/outlet pipe according to actual conditions, tail gas absorber portion 4 in-built enter selected solvent, switch on power, can use.In the time that the discharge capacity of emission point exceedes this device separate unit treating capacity, many playscripts with stage directions device that can simultaneously come into operation is as required in parallel to be used.
Embodiment mono-
Mink cell focus pipeline of certain chemical plant installations need to clean purging, first with light oil, mink cell focus in pipeline is ejected to emission point, is collected into underground oil-polluted water pipe network through floor drain, then by purging joint 1.0MPa steam blowing, finally purges water with compressed air.Scene has harsh noise, steam to fill the air, strong oil gas and foul odour, sewage flows over, the mink cell focus solidifying is adhered on ground.
By a kind of the present invention portable chemical-industrial emissions treating apparatus, move to emission point place, emission point is connected with pipe-line mixer 1a with an interim pipeline, anti-coagulants tank is connected with the pipe-line mixer 1a additive mouth of pipe with an interim pipeline, with an interim pipeline by sewer pipe 22 cause ground leak, connect recirculated cooling water inlet/outlet pipe, in the one-level uptake zone of tail gas absorber portion 4, pack diesel oil into, be used for absorbing oil gas, in the secondary uptake zone of tail gas absorber portion 4, pack alkali lye into, be used for absorbing sulfur series foul smell gas by using class material, assemble the height of release of blast pipe to regulation, switch on power, can use.Clean the scene of purging and will not sting sewage and the sump oil of ear noise, pungent peculiar smell, crossing current.
Embodiment bis-
Certain chemical plant installations Wastewater Stripping Tower top is provided with safety valve, safety valve once occurred and open jumping, and a large amount of emptying of the hydrogen sulfide of steam, high concentration and ammonia, causes large-scale environmental pollution.Main cause is that corrosion leak source appears in reboiler steam tube bank at the bottom of Wastewater Stripping Tower, and this situation is very common, so adjusted after Wastewater Stripping Tower operational factor, continues operation, along with reboiler steam tube bank corrosion leak source increases, has finally caused that safety valve opens jumping.
There is corrosion leak source in reboiler steam tube bank at the bottom of Wastewater Stripping Tower, while there is fluctuation in Wastewater Stripping Tower operation, a kind of the present invention portable chemical-industrial emissions treating apparatus can be moved to Wastewater Stripping Tower place, safety valve outlet is connected with pipe-line mixer 1a with an interim pipeline, to produce water with an interim pipeline is connected with the pipe-line mixer 1a additive mouth of pipe, for chilling steam, sewer pipe 22 is caused in Water Tank with an interim pipeline, connect recirculated cooling water inlet/outlet pipe, in the one-level uptake zone of tail gas absorber portion 4, introduce and purify waste water, be used for absorbing ammonia, in the secondary uptake zone of tail gas absorber portion 4, pack amine liquid into, for absorbing hydrogen sulphide, assemble the height of release of blast pipe to regulation, switch on power, increase safety valve and open jumping and solvent pump I 5, solvent pump II 6, the chain facility that air blast 9 starts, perform strick precaution.Can holdout device operation, can reduce or eliminate again safety valve and open and jump discharge surrounding environment is polluted.
Therefore, a kind of method and mobile device of processing chemical-industrial emissions of the present invention, highly versatile, treatment effect is good and operating cost is low, comparatively improve ground some uncontrollable discharges of chemical plant installations are become to controlled discharge in a organized way, produce effective guarantee is provided for chemical plant installations safely cleaning.
A kind of method and mobile device of processing chemical-industrial emissions of the present invention; can carry out various changes and modification according to a certain chemical plant installations practical condition; such as increase and decrease equipment or be broken down into the module of difference in functionality, in the protection domain that these equivalent form of values should limit in present specification.
Claims (6)
1. process a method for chemical-industrial emissions, it is characterized in that comprising the following steps:
(A) an interim pipeline being installed is connected the emission point of chemical-industrial emissions with pipe-line mixer (1a), additive mixes in pipe-line mixer (1a) with chemical-industrial emissions, mixture is through muffler (1b), be disposed in collecting tank (1), mixture carries out gravity settling separation, slag net (1c) is set in collecting tank (1), solid impurity is removed from cinder cleaning hole (1d), liquid enters sewer pipe (22), and gas is introduced separator (2);
(B) gas, in separator (2), carries out centrifugal force separate, and the dirt in gas enters sewer pipe (22), and gas enters heat exchanger (3);
(C) heat exchanger (3) refrigerating gas, condensate liquid enters sewer pipe (22), and incoagulability tail gas enters tail gas absorber portion (4);
(D) tail gas absorber portion (4) subregion absorption cleaning tail gas, the tail gas after absorption enters tail gas adsorption section (7);
(E) tail gas adsorption section (7) adsorption cleaning tail gas, the tail gas after purification enters blast pipe (8);
(F) blast pipe (8) bottom adopts air blast (9) to blow in blast pipe (8), the tail gas of drainage and dilution discharge.
2. process the mobile device of chemical-industrial emissions for one kind, comprise public chassis, it is characterized in that: upper collecting tank (1), separator (2), heat exchanger (3), tail gas absorber portion (4), the tail gas adsorption section (7) of installing in described public chassis (10), between each equipment, connect with pipeline, the inside of described collecting tank (1) is provided with muffler (1b) and slag net (1c), muffler (1b) is connected with pipe-line mixer (1a), and described pipe-line mixer (1a) is venturi-type blender or jet pump; Described heat exchanger (3) is spiral heat exchanger, is arranged on the top of described collecting tank (1); Described tail gas adsorption section (7) is connected with blast pipe (8), and the bottom of this blast pipe (8) is connected with air blast (9), and described tail gas absorber portion (4) is provided with solvent pump, and connects with pipeline.
3. mobile device according to claim 2, is characterized in that: described collecting tank (1) is a cylinder tank, and its inside is provided with slag net (1c), and its tank skin is provided with cinder cleaning hole (1d).
4. mobile device according to claim 2, it is characterized in that: described separator (2) is by many cyclone separator parallel connections, and be placed in one end of public chassis (10) together with described collecting tank (1), heat exchanger (3).
5. mobile device according to claim 2, it is characterized in that: described tail gas absorber portion (4) is a rectangular casing, casing one side leaves multiple uniform gas inlets (4a), box house adopts partition panel (4b) and the first demister (4c) to be divided into multiple uptake zones, in each uptake zone, adopt dividing plate (4d) to be divided into multiple rectangle air flues, each rectangle air flue top is all provided with solvent shower (4e) and atomizer (4f), middle part arranges porous pallet (4g) or filler (4h), bottom is the solvent liquid storage area being interconnected, the solvent of each uptake zone is by solvent pump circulated sprinkling separately, the end of tail gas absorber portion (4) is a boss, the second demister (4i) is installed in boss, described tail gas absorber portion (4) is placed in the middle part of public chassis (10).
6. mobile device according to claim 5, is characterized in that: described tail gas adsorption section (7) is made up of many adsorption tanks, and is arranged on the end boss of tail gas absorber portion (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110172493.3A CN102302883B (en) | 2011-06-17 | 2011-06-17 | Method and shifting unit for processing chemical-industrial emissions |
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| CN201110172493.3A CN102302883B (en) | 2011-06-17 | 2011-06-17 | Method and shifting unit for processing chemical-industrial emissions |
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| CN102302883B true CN102302883B (en) | 2014-05-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103007713B (en) * | 2012-12-12 | 2015-01-21 | 常州大学 | Moveable emergency system for treating leakage of acute dangerous chemical gas |
| CN103611377A (en) * | 2013-11-13 | 2014-03-05 | 常州大学 | Gas purification pretreatment method and device |
| CN105561740A (en) * | 2015-09-07 | 2016-05-11 | 北京航天凯恩化工科技有限公司 | Vehicle-mounted propellant waste gas treatment apparatus |
| CN111298587B (en) * | 2020-02-28 | 2021-04-13 | 北京鑫源寰宇环保科技有限公司 | High-temperature oil-gas condensation separation process |
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