CN109351127A - The exhaust gas treating method of ECH, nitrogen reuse are removed in epoxy resin production - Google Patents
The exhaust gas treating method of ECH, nitrogen reuse are removed in epoxy resin production Download PDFInfo
- Publication number
- CN109351127A CN109351127A CN201611144459.4A CN201611144459A CN109351127A CN 109351127 A CN109351127 A CN 109351127A CN 201611144459 A CN201611144459 A CN 201611144459A CN 109351127 A CN109351127 A CN 109351127A
- Authority
- CN
- China
- Prior art keywords
- ech
- tail gas
- desorption
- gas
- adsorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/32—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/08—Compounds containing oxirane rings with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
Abstract
The invention discloses the exhaust gas treating methods that ECH, nitrogen reuse are removed in a kind of production of epoxy resin, including tail gas pretreatment, Carbon fibe, active carbon adsorption desorption, alkali spray-absorption decomposition, end gas catalytic oxidation, recompression.Easy, environmentally friendly, energy saving, safety of the invention.
Description
Technical field
The present invention relates to the exhaust gas treating methods that ECH, nitrogen reuse are removed in a kind of production of epoxy resin.
Background technique
The process route of traditional ECH exhaust gas processing device mainly has following two kinds of routes:
One: ECH tail gas of process route uses TQR tower burning disposal, due to containing C-Cl key in ECH molecule, burns in tail gas
When burning such as temperature control improper can generate phosgene；ECH is burned can waste of resource and the energy；It is at high cost using TQR tower burning disposal,
Tail gas after burning also needs to be further processed, and in first class explosion-protection equipment setting incinerator, to safety in production, there is also certain to choose
War, so epoxy resin industry uses the technique seldom to handle the ECH vent gas treatment in epoxy resin production.
Process route two: with second level carbon fiber adsorption, desorption plus second order activity after ECH tail gas is condensed using two to three-level
Charcoal adsorption desorption technique, since ECH causes the hydrolysis of ECH in adsorption desorption containing moisture in carbon fiber；
Since the hydrochloric acid that ECH hydrolytic process generates can promote the ECH of high concentration to generate autohemagglutination again, due to shadow after ECH autohemagglutination
Carbon fibe is rung to the adsorption effect of ECH tail gas, emergency case is such as occurred and is possible to safety accident occur；In addition ECH hydrolysis generates
296 DEG C of the glycerol boiling point useful spaces for occupying carbon fiber after be difficult to discharge the useful space again, influence the adsorption/desorption of carbon fiber
Effect, the desorption cycles of shortening device consume mass energy, and the service life of Carbon fibe shortens dramatically, while being also unable to reach
(former industry exhaust emission standard is that ECH content is≤40mg/ cubic metres in tail gas for national new ECH exhaust emission standard requirement；
After on July 1st, 2017 country's ECH exhaust emission standard require will improve, it is desirable that in the tail gas after raising ECH content should control≤
8mg/ cubic metres)；Reach new standard to require that technological innovation need to be carried out to traditional exhaust gas treating method, reaches ECH tail
The requirement of gas national emission standard；Or processing tail gas is returned into epoxy purification, filters pressing, raw material and finished product after compressor compresses and is store
The nitrogen protecting system for depositing process reuses.
Summary of the invention
The purpose of the present invention is to provide remove ECH, nitrogen in a kind of easy, environmental protection, energy conservation, the epoxy resin production of safety
The exhaust gas treating method of gas reuse.
The technical solution of the invention is as follows:
The exhaust gas treating method of ECH, nitrogen reuse are removed in a kind of production of epoxy resin, it is characterized in that: including following step
It is rapid:
(1) tail gas pre-processes: ECH tail gas is adsorbed through device through 6 DEG C of chilled water level-one water sprays, then through 6 DEG C of chilled waters two
After grade condensation, not solidifying tail gas enters spray column from water spray absorb the bottom of the tower and carries out second level spray-absorption, and 6 DEG C of chilled waters are from from tower
The local tangent line on 1-2 meters of top sprays into, and on-condensible gas is by Despumation device foam removal after sufficiently washing, and dehumidifies and do through dehumidification device
Dry processing, the condenser for being -5 DEG C to -15 DEG C subsequently into medium condense；Cleaning solution returns ECH waste water rectifier unit and recycles ECH；
(2) Carbon fibe, active carbon adsorption desorption: the tail gas handled through step (1) enters Carbon fibe and charcoal canister, using charcoal
Fiber and active carbon particle adsorb under the conditions of micro-positive pressure, when Carbon fibe and activated carbon adsorption ECH value reach adsorbent material itself
When the 25%-30% of weight, tail gas is switched into another Carbon fibe and charcoal canister carries out ECH absorption；In addition it will adsorb
The Carbon fibe and charcoal canister of ECH carries out desorption recycling ECH, and desorption adds indirect steam heating desorption recycling ECH using vacuum, when
ECH desorption value in adsorbent material opens indirect steam heating adsorption desorption material when reaching 80%, until when ECH removal rate reaches 98%
It is spare to stop desorption manipulation progress；
(3) alkali spray-absorption decomposes: entering alkali spray column with the on-condensible gas after activated carbon adsorption through Carbon fibe and inversely sprays
Leaching, which absorbs, decomposes, the tail gas after the decomposition of alkali spray-absorption, into Alkali absorption tank or the further absorption cleaning of water tourie；
HCL+NaoH=NaCL+H2O
(4) end gas catalytic oxidation, recompression:
The tail gas that will be purified through step (3) is into oximetry system oxygen determination content, as the oxygen content < 0.2% in tail gas by tail
Pneumatic transmission to the purification of compressor compresses winding oxygen, filters pressing, semi-finished product, storage of finished products nitrogen protecting system；Such as oxygen content >
0.2%, tail gas is sent after the oxygen content in system is dropped to < 0.2% to catalytic oxidation unit, tail gas is through compressor compresses
Afterwards the purification of winding oxygen, filters pressing, semi-finished product, storage of finished products nitrogen protection system.
The tail gas that step (2) desorption generates is transported to another absorbent charcoal adsorption tank inlet exhaust gas with blower and inhales again
It is attached or so that content of organics in epoxy ECH tail gas is dropped to 8mg/m after sending to alkali spray equipment adsorption-decomposition function3；It is in line or send to
Tail gas compression reutilization system recycles.
Key technology explanation:
1. ECH engine manifold ECH content >=18000mg/ cubic metres, after level-one sprays absorption and 6 DEG C of freezing water condensations,
Engine manifold ECH content is down to 10000-12000mg/ cubic metres；Critical control point: the Liquid level of sprayed tank and inflow control
System when in sprayed tank ECH reach be saturated after need that ECH saturated water is transferred to ECH wastewater of rectification basin (inflow and liquid level in time
Can sell through joint efforts control), 2. ECH spray, water absorption tower, purpose are reduced the ECH content in tail gas by spray washing, reduced simultaneously
The tangential velocity of tail gas maximizes the efficiency of spray column by tail gas air inflow and 6 DEG C of chilled water inflow interlocked controls,
Critical control point: a, guaranteeing ECH tail gas and wash spray water reverse flow, the time of contact of b, guarantee tail gas and shower water not≤
15 seconds, c, inflow and tail gas air inflow used interlocked control, and d, tower bottom satiety ECH waste water need to quantitatively detach system；3. in addition
One defoamed separation device is set in tower top, dehumidification device is added before the condenser of -15 DEG C of freezing liquid, guarantees tail gas fixed gas
In the condensing unit safety for the freezing liquid that medium is -15 DEG C, 4. for ensure device stablize by the outlet temperature of condenser with
Freezing liquid, which enters condenser flow, which carries out interlocked control, ensures that condensator outlet gaseous state is stablized, and tail gas is through spray and washs,
Again after -15 DEG C of freezing liquid condensing, the ECH concentration in tail gas drops to≤1600mg/ cubic metres；5. on-condensible gas enters charcoal
Fiber (handles) adsorbent equipment with active carbon alone or in combination and is enriched with, when Carbon fibe and activated carbon adsorption ECH value reach suction
When the 25%-30% of enclosure material own wt, tail gas intake valve is switched into another Carbon fibe and charcoal canister carries out ECH suction
It is attached；In addition the charcoal canister for adsorbing ECH close to regulation desorption value is subjected to desorption recycling ECH, desorption adds indirect steaming using vacuum
Vapour heating desorption recycling ECH, ECH absorption is adsorbed using micro-positive pressure, using ECH and nitrogen particle carbon surface absorption energy not
Same and the two diffusion velocity difference controls the switch of control pneumatic operated valve by programming, and realization pressurized adsorbent, negative pressure are desorbed,
Complete ECH and nitrogen separation；After Carbon fibe and active adsorption desorption, the ECH content in tail gas drops to≤800mg/ cubes
Rice.
Present invention process route is handled containing ECH vent gas treatment, and tail gas can reach in July, 2017 for the country of promulgation
The requirement of ECH exhaust emission standard, ECH content in tail gas after processing≤8mg/ cubic metres).
In addition original process are desorbed using direct steam when ECH is desorbed, since ECH exists in water and in the hot environment Yishui River
Solution, hydrolysate is glycerol and hydrochloric acid, due to 296 degree of boiling point of glycerol, since glycerol has been occupied behind the gap of Carbon fibe with one
As processing method be difficult again to cement out glycerol from the gap occupied, from face ring Carbon fibe using effect, in addition
The hydrochloric acid corrosive equipment of generation will appear ECH polymerization reaction in the high ECH concentration medium existing for hydrochloric acid, influence at tail gas
The realization of science and engineering skill such as controls and improper easily process safety accident occurs.New process is desorbed using negative pressure low temperature, avoids ECH de-
The hydrolysis of attached process is avoided the generation of glycerol and hydrochloric acid, is desorbed using negative-pressure vacuum, and indirect heating technique keeps Carbon fibe and work
Property charcoal the dry life cycle for guaranteeing Carbon fibe and particle charcoal.It ensure that the treatment effect of tail gas.
To save the energy, the tail gas after activated carbon adsorption can reach epoxy purification, filters pressing, raw material and production through compression processing
Treated tail gas can be carried out after compression processing that application and epoxy resin are raw again by the nitrogen protection requirement of storage of finished products process
Production system can greatly save the energy while accomplish energy-saving and emission-reduction.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the process flow diagram of one embodiment of the invention.
Specific embodiment
The exhaust gas treating method of ECH, nitrogen reuse are removed in a kind of production of epoxy resin, including the following steps:
(1) tail gas pre-processes: ECH tail gas is adsorbed through device through 6 DEG C of chilled water level-one water sprays, then through 6 DEG C of chilled waters two
After grade condensation, not solidifying tail gas enters spray column from water spray absorb the bottom of the tower and carries out second level spray-absorption, and 6 DEG C of chilled waters are from from tower
The local tangent line on 1-2 meters of top sprays into, and on-condensible gas is by Despumation device foam removal after sufficiently washing, and dehumidifies and do through dehumidification device
Dry processing, the condenser for being -5 DEG C to -15 DEG C subsequently into medium condense；Cleaning solution returns ECH waste water rectifier unit and recycles ECH；
(2) Carbon fibe, active carbon adsorption desorption: the tail gas handled through step (1) enters Carbon fibe and charcoal canister, using charcoal
Fiber and active carbon particle adsorb under the conditions of micro-positive pressure, when Carbon fibe and activated carbon adsorption ECH value reach adsorbent material itself
When the 25%-30% of weight, tail gas is switched into another Carbon fibe and charcoal canister carries out ECH absorption；In addition it will adsorb
The Carbon fibe and charcoal canister of ECH carries out desorption recycling ECH, and desorption adds indirect steam heating desorption recycling ECH using vacuum, when
ECH desorption value in adsorbent material opens indirect steam heating adsorption desorption material when reaching 80%, until when ECH removal rate reaches 98%
It is spare to stop desorption manipulation progress；
(3) alkali spray-absorption decomposes: entering alkali spray column with the on-condensible gas after activated carbon adsorption through Carbon fibe and inversely sprays
Leaching, which absorbs, decomposes, the tail gas after the decomposition of alkali spray-absorption, into Alkali absorption tank or the further absorption cleaning of water tourie；
HCL+NaoH=NaCL+H2O
(4) end gas catalytic oxidation, recompression:
The tail gas that will be purified through step (3) is into oximetry system oxygen determination content, as the oxygen content < 0.2% in tail gas by tail
Pneumatic transmission to the purification of compressor compresses winding oxygen, filters pressing, semi-finished product, storage of finished products nitrogen protecting system；Such as oxygen content >
0.2%, tail gas is sent after the oxygen content in system is dropped to < 0.2% to catalytic oxidation unit, tail gas is through compressor compresses
Afterwards the purification of winding oxygen, filters pressing, semi-finished product, storage of finished products nitrogen protection system.
Each process point physical and chemical index of tail gas:
The tail gas that step (2) desorption generates is transported to another absorbent charcoal adsorption tank inlet exhaust gas with blower and inhales again
It is attached or so that content of organics in epoxy ECH tail gas is dropped to 8mg/m after sending to alkali spray equipment adsorption-decomposition function3；It is in line or send to
Tail gas compression reutilization system recycles.
Claims (2)
1. the exhaust gas treating method of ECH, nitrogen reuse are removed in a kind of epoxy resin production, it is characterized in that: including the following steps:
(1) tail gas pre-processes: ECH tail gas is adsorbed through device through 6 DEG C of chilled water level-one water sprays, then cold through 6 DEG C of chilled water second levels
After solidifying, not solidifying tail gas enters spray column from water spray absorb the bottom of the tower and carries out second level spray-absorption, and 6 DEG C of chilled waters are from from tower top 1-
2 meters of local tangent line sprays into, after sufficiently washing on-condensible gas by Despumation device foam removal, and through dehumidification device removal moisture drying at
Reason, the condenser for being -5 DEG C to -15 DEG C subsequently into medium condense；Cleaning solution returns ECH waste water rectifier unit and recycles ECH；
(2) Carbon fibe, active carbon adsorption desorption: the tail gas handled through step (1) enters Carbon fibe and charcoal canister, using Carbon fibe
It is adsorbed under the conditions of micro-positive pressure with active carbon particle, when Carbon fibe and activated carbon adsorption ECH value reach adsorbent material own wt
25%-30% when, tail gas is switched into another Carbon fibe and charcoal canister and carries out ECH absorption；In addition the charcoal of ECH will have been adsorbed
Fiber and charcoal canister carry out desorption recycling ECH, and desorption adds indirect steam heating desorption recycling ECH using vacuum, works as adsorption material
ECH desorption value in material opens indirect steam heating adsorption desorption material when reaching 80%, until ECH removal rate stops desorption when reaching 98%
Operation carries out spare；
(3) alkali spray-absorption decomposes: the on-condensible gas after Carbon fibe and activated carbon adsorption enters the inversely spraying suction of alkali spray column
Contracture solution, the tail gas after the decomposition of alkali spray-absorption, into Alkali absorption tank or the further absorption cleaning of water tourie；
(4) end gas catalytic oxidation, recompression:
The tail gas that will be purified through step (3) send tail gas as the oxygen content < 0.2% in tail gas into oximetry system oxygen determination content
To the purification of compressor compresses winding oxygen, filters pressing, semi-finished product, storage of finished products nitrogen protecting system；Such as oxygen content > 0.2%, by tail
After oxygen content in system is dropped to < 0.2% to catalytic oxidation unit by pneumatic transmission, tail gas winding oxygen essence after compressor compresses
System, filters pressing, semi-finished product, storage of finished products nitrogen protection system.
2. removing the exhaust gas treating method of ECH, nitrogen reuse, feature in epoxy resin production according to claim 1
Be: step (2) desorption generate tail gas with blower be transported to another absorbent charcoal adsorption tank inlet exhaust gas adsorb again or
Content of organics in epoxy ECH tail gas is set to drop to 8mg/m3 after sending to alkali spray equipment adsorption-decomposition function；It is in line or send to tail gas
Reutilization system is compressed, is recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144459.4A CN109351127A (en) | 2016-12-13 | 2016-12-13 | The exhaust gas treating method of ECH, nitrogen reuse are removed in epoxy resin production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144459.4A CN109351127A (en) | 2016-12-13 | 2016-12-13 | The exhaust gas treating method of ECH, nitrogen reuse are removed in epoxy resin production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109351127A true CN109351127A (en) | 2019-02-19 |
Family
ID=65349683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611144459.4A Pending CN109351127A (en) | 2016-12-13 | 2016-12-13 | The exhaust gas treating method of ECH, nitrogen reuse are removed in epoxy resin production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109351127A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817137A (en) * | 2020-06-18 | 2021-12-21 | 南通星辰合成材料有限公司 | Method for recycling epoxy chloropropane wastewater and method for preparing epoxy resin |
| CN115501722A (en) * | 2021-06-23 | 2022-12-23 | 南通星辰合成材料有限公司 | Method for treating epichlorohydrin tail gas |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040028811A1 (en) * | 2002-08-06 | 2004-02-12 | Young-Jin Cho | Bismuth titanium silicon oxide, bismuth titanium silicon oxide thin film, and method for forming the thin film |
| CN101117377A (en) * | 2007-09-18 | 2008-02-06 | 天津大学 | Method for preparing aqueous epoxy resin |
| CN101805441A (en) * | 2010-03-31 | 2010-08-18 | 南通星辰合成材料有限公司 | Demineralizing, purifying and filtering device in epoxy resin production |
| CN101851395A (en) * | 2010-06-10 | 2010-10-06 | 南通星辰合成材料有限公司 | Epoxy resin and production method thereof |
| CN201713456U (en) * | 2010-04-16 | 2011-01-19 | 南亚环氧树脂(昆山)有限公司 | Device for separating ECH |
| CN202246142U (en) * | 2011-09-15 | 2012-05-30 | 建滔(番禺南沙)石化有限公司 | Steam stripping system for recycled water containing epoxy chloropropane (ECH) |
| CN102477018A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院大连化学物理研究所 | Continuous production device for preparing epichlorohydrin by using hydrogen peroxide to oxidize chloropropene under conditions of normal pressure and no solvent |
| CN102921278A (en) * | 2012-10-24 | 2013-02-13 | 环境保护部华南环境科学研究所 | Method for collaboratively controlling multi-pollutants produced from waste incineration smokes |
| CN106178846A (en) * | 2016-08-29 | 2016-12-07 | 南通星辰合成材料有限公司 | Epoxy resin reduces the exhaust system of ECH organic tail gas in producing |
-
2016
- 2016-12-13 CN CN201611144459.4A patent/CN109351127A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040028811A1 (en) * | 2002-08-06 | 2004-02-12 | Young-Jin Cho | Bismuth titanium silicon oxide, bismuth titanium silicon oxide thin film, and method for forming the thin film |
| CN101117377A (en) * | 2007-09-18 | 2008-02-06 | 天津大学 | Method for preparing aqueous epoxy resin |
| CN101805441A (en) * | 2010-03-31 | 2010-08-18 | 南通星辰合成材料有限公司 | Demineralizing, purifying and filtering device in epoxy resin production |
| CN201713456U (en) * | 2010-04-16 | 2011-01-19 | 南亚环氧树脂(昆山)有限公司 | Device for separating ECH |
| CN101851395A (en) * | 2010-06-10 | 2010-10-06 | 南通星辰合成材料有限公司 | Epoxy resin and production method thereof |
| CN102477018A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院大连化学物理研究所 | Continuous production device for preparing epichlorohydrin by using hydrogen peroxide to oxidize chloropropene under conditions of normal pressure and no solvent |
| CN202246142U (en) * | 2011-09-15 | 2012-05-30 | 建滔(番禺南沙)石化有限公司 | Steam stripping system for recycled water containing epoxy chloropropane (ECH) |
| CN102921278A (en) * | 2012-10-24 | 2013-02-13 | 环境保护部华南环境科学研究所 | Method for collaboratively controlling multi-pollutants produced from waste incineration smokes |
| CN106178846A (en) * | 2016-08-29 | 2016-12-07 | 南通星辰合成材料有限公司 | Epoxy resin reduces the exhaust system of ECH organic tail gas in producing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817137A (en) * | 2020-06-18 | 2021-12-21 | 南通星辰合成材料有限公司 | Method for recycling epoxy chloropropane wastewater and method for preparing epoxy resin |
| CN113817137B (en) * | 2020-06-18 | 2023-10-10 | 南通星辰合成材料有限公司 | Recycling method of epichlorohydrin wastewater and preparation method of epoxy resin |
| CN115501722A (en) * | 2021-06-23 | 2022-12-23 | 南通星辰合成材料有限公司 | Method for treating epichlorohydrin tail gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106178846B (en) | The exhaust system of ECH organic tail gas is reduced in epoxy resin production | |
| CN103990351B (en) | A kind of purification recovery device of volatile organic waste gas | |
| CN203556260U (en) | Recovery device of easily volatile organic solvent in wastewater or waste gas | |
| JP2013544636A (en) | Method and apparatus for recovering carbon dioxide in flue gas using activated sodium carbonate | |
| CN106540508A (en) | Reclaim the device and method of volatility organic chloride gas | |
| CN102009955B (en) | Method for recovering hydrogen chloride from trichlorosilane tail gas | |
| CN101530726A (en) | Method for processing waste gas from the production of viscose chemical fiber | |
| CN107899401A (en) | A kind of acrylic factory waste gas treatment process | |
| CN206152550U (en) | Exhaust treatment device in pyridine production | |
| CN206103392U (en) | Humid tropical vapor recovery system and purifier | |
| CN109078459A (en) | A kind of device and technology of absorption-adsorption-desorption cycle resource utilization volatile organic gases | |
| CN109351127A (en) | The exhaust gas treating method of ECH, nitrogen reuse are removed in epoxy resin production | |
| CN102476013A (en) | Novel organic waste gas recovery method and system | |
| CN103961997A (en) | Process for recycling exhaust gas from ammonium metavanadate roasting furnace | |
| CN206577554U (en) | Reclaim the device of volatility organic chloride gas | |
| CN204051371U (en) | A kind of purification recovery device of volatile organic waste gas | |
| CN206499973U (en) | A kind of lacquer spraying waste gas processing system | |
| CN206168203U (en) | Dichloromethane waste gas treatment system who contains sulphur | |
| CN104984628A (en) | Organic waste gas adsorption recovery process | |
| CN109503314B (en) | Method for recovering trichloroethane in tail gas in sucralose production | |
| CN204952588U (en) | Processing system who contains VOCs waste gas | |
| CN111234883A (en) | Coal gas double-tower washing and purifying system | |
| CN215138426U (en) | A VOCs exhaust treatment device for concentration variation is big | |
| CN205042330U (en) | Novel efficient organic solvent recovery system | |
| CN109351138A (en) | A kind of VOCs waste gas from incinerator processing method and processing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190219 |
|
| RJ01 | Rejection of invention patent application after publication |