CN109621676A - A kind of exhaust treatment system that can recycle methyl methacrylate - Google Patents
A kind of exhaust treatment system that can recycle methyl methacrylate Download PDFInfo
- Publication number
- CN109621676A CN109621676A CN201811606424.7A CN201811606424A CN109621676A CN 109621676 A CN109621676 A CN 109621676A CN 201811606424 A CN201811606424 A CN 201811606424A CN 109621676 A CN109621676 A CN 109621676A
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- CN
- China
- Prior art keywords
- exhaust gas
- gas
- methyl methacrylate
- treatment system
- exhaust
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- 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.)
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Classifications
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- 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
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- 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
- B01D53/002—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 condensation
-
- 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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of exhaust treatment systems that can recycle methyl methacrylate, are related to technical field of waste gas treatment.The following steps are included: (1) exhaust gas is cooled down by brine freezing machine；(2) treated, and exhaust gas enters the heating that exchanges heat in heat exchanger；(3) treated, and exhaust gas passes through the dust in water ring vacuum pump removing exhaust gas, and enters spray column, wherein being added in the spray pond of spray column has alkaline solution；(4) gas after spray column sprays successively passes through check-valves and flame-retardant device enters incinerator；(5) oxygen, full combustion are passed through into incinerator；(6) gas after burning enters back into dust pelletizing system, to remove the dust in exhaust gas.A kind of exhaust treatment system that can recycle methyl methacrylate of the invention has the advantages that MONOMER RECOVERY is quick and convenient, and can effectively be purified to various exhaust gas, and national standard is met.
Description
Technical field
The present invention relates to technical field of waste gas treatment, and in particular to a kind of exhaust-gas treatment that can recycle methyl methacrylate
System.
Background technique
" acrylic " is a phonemic loans, and English is ACRYLIC.It is a kind of chemical material, and chemical name is called " PMMA ",
Belong to polymethyl acrylate class, be commonly called as " organic glass Jing Guo specially treated ", application industry acrylic raw material generally with
The forms such as particle, plate, tubing occur.
During manufacturing acrylic board, discarded acrylic board is inevitably generated, general enterprises can split
It solves and waits the burning recycling for carrying out exhaust gas acrylic board in furnace, many exhaust gas and monomer metering system can be generated in removal process
Sour methyl esters has strong pungent smell, pollutes environment, and in the prior art, the recycling to monomers methyl methacrylate
It crosses complex.
Summary of the invention
It is of the invention a kind of to recycle at the exhaust gas of methyl methacrylate for above-mentioned disadvantage existing in the prior art
Reason system has the advantages that MONOMER RECOVERY is quick and convenient, and can effectively be purified to various exhaust gas, and national standard is met.
In order to achieve the above technical purposes, a kind of exhaust treatment system that can recycle methyl methacrylate of the invention,
The following steps are included:
(1) exhaust gas is cooled down by admission line by brine freezing machine, makes condensed liquid by being located in brine freezing machine
Liquid storing tube below portion's admission line is collected, and remaining gas enters heat exchanger；
(2) by step (1) treated, exhaust gas enters exchanges heat in heat exchanger heating；
(3) dust in exhaust gas is removed by water ring vacuum pump by step (2) treated exhaust gas, and enters spray column,
Wherein, being added in the spray pond of spray column has alkaline solution；
(4) gas after spray column sprays successively passes through check-valves and flame-retardant device enters incinerator；
(5) oxygen, full combustion are passed through into incinerator；
(6) gas after burning enters back into dust pelletizing system, to remove the dust in exhaust gas.
Wherein, in the present invention, it is preferred that in the step (1), exhaust gas is cooled to-15-- 18 by brine freezing machine
℃。
Wherein, in the present invention, it is preferred that in the step (2), exhaust gas is warming up to 65-78 DEG C by heat exchanger.
Wherein, in the present invention, the heat transferring medium inside the heat exchanger is water or oil.
Preferably, step (3) the neutral and alkali solution is one of sodium hydroxide, sodium bicarbonate or sodium carbonate or two
Kind or three kinds of mixture, are then added clear water thereto, are configured to the alkaline solution that pH is 10-12.
Preferably, gas flowmeter is provided at the air inlet in the step (5) in incinerator.
Further, the oxygen content that is passed through in the step (5) and the volume for entering waste gas content in incinerator it
Than for oxygen: exhaust gas=2.5-3.5:1.
Preferably, the dust pelletizing system in the step (6) is cyclone dust collectors.
Compared with prior art, the invention has the following advantages: (1) exhaust gas passes through admission line by brine freezing machine
It carries out being cooled to-15-- 18 DEG C, at this point, monomers methyl methacrylate condenses, and by being located at below brine freezing machine
Liquid storing tube is collected, and has the advantages that MONOMER RECOVERY is quick and convenient, and the rate of recovery is higher；(2) it is molten that alkalinity is directly added into spray pond
Liquid, on the one hand on the other hand the dust in energy scavenging by alkaline solution, can remove the sour gas in exhaust gas, simplify
Purifying step, improves the efficiency of exhaust-gas treatment；(3) waste gas content in the oxygen content and incinerator being passed through in incinerator
The ratio between volume be oxygen: exhaust gas=2.5-3.5:1, excessive oxygen can guarantee that the gas in incinerator is adequately burnt,
Reduce the discharge of pernicious gas；(4) gas generated after burning is handled using dust pelletizing system, can remove the powder in exhaust gas
Dirt further protects environment.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment to this hair
It is bright to be described in further detail.
Embodiment 1
A kind of exhaust treatment system that can recycle methyl methacrylate of the invention, comprising the following steps:
(1) exhaust gas is carried out being cooled to-15-- 18 DEG C by brine freezing machine by admission line, makes condensed liquid by being located at
Liquid storing tube below brine freezing machine is collected, and remaining gas enters heat exchanger；Wherein, brine freezing machine is by Guangdong crowd Gao Lengyuan
Equipment Co., Ltd is customized, and is located at admission line inside brine freezing machine, and liquid storing tube is arranged below admission line, this
Sample can be flowed into liquid storing tube by condensed liquid and be collected.Admission line in the present invention is to be by 60 diameters
The stainless steel seamless pipe parallel arranged of 20mm forms, and all stainless steel seamless pipes connect inlet manifold.
(2) exhaust gas after cooling treatment, which enters to exchange heat in heat exchanger, is warming up to 65-78 DEG C, wherein in the present invention,
Heat transferring medium inside the heat exchanger is water or oil.When being mixed due to the exhaust gas of lower temperature with subsequent alkaline solution,
Being easy to cause reaction, not exclusively therefore, this process needs for exhaust gas to be warming up to certain degree, and the higher exhaust gas of temperature, interior
Collision frequency between portion's gas increases, and is also beneficial to the quick removing of dust.
(3) dust in exhaust gas is removed by water ring vacuum pump by step (2) treated exhaust gas, and enters spray
Tower, wherein being added in the spray pond of spray column has alkaline solution；Since gas compression is isothermal in water ring vacuum pump, therefore can
Inflammable, explosive gas is extracted, dust-laden, aqueous gas can be additionally extracted, simplify purifying step, meanwhile, pass through alkalinity
Solution can remove the sour gas in exhaust gas, be further able to simplify purifying step, improve the efficiency of exhaust-gas treatment.
(4) gas after spray column sprays successively passes through check-valves and flame-retardant device enters incinerator；To prevent generating
Tempering reduces dangerous.
(5) oxygen, full combustion are passed through into incinerator；After above-mentioned steps, sour gas and harmful powder are eliminated
Dirt, inside still containing the volatile organic matters such as a large amount of methanol, oxygen is added thereto, can ensure that carbonaceous organic material sufficiently fires
It is burnt into its oxide, non-hazardous gas is formed and is discharged into air, and malodorous discharge amount substantially reduces in air.
(6) gas after burning enters back into dust pelletizing system, to remove the dust in exhaust gas.Due to by burning
Gas afterwards, the dust etc. being inevitably mingled in incinerator can be at this point, be purged again by dust pelletizing system
The exhaust gas of one step purification discharge.
Wherein, step (3) the neutral and alkali solution is one or both of sodium hydroxide, sodium bicarbonate or sodium carbonate
Or three kinds of mixture, clear water is then added thereto, is configured to the alkaline solution that pH is 10-12.It certainly, can in the present invention
To utilize other alkaline matters, such as potassium hydroxide, ammonium hydroxide to be configured, further limitation is not done herein.
Wherein, gas flowmeter is provided at the air inlet in the step (5) in incinerator.
Wherein, the oxygen content being passed through in the step (5) is with the ratio between the volume of waste gas content entered in incinerator
Oxygen: exhaust gas=2.5-3.5:1 controls the intake of oxygen by gas flowmeter, can guarantee that the gas in incinerator carries out
Adequately burning, reduces the discharge of pernicious gas；
Wherein, the dust pelletizing system in the step (6) is cyclone dust collectors.
In the present embodiment, it feeds intake daily 25 tons, to dust, methanol, carbon monoxide, hydrogen sulfide, sulfur dioxide in exhaust gas
The degree of purification of equal pernicious gases reaches 99% or more, and recoverable amount of monomer is up to 4.5 tons from exhaust gas, and after measured, plant area is smelly
Gas discharge value is 5, is much smaller than factory's circle standard value 20 of " emission standard for odor pollutants " (GB14554-93) defined.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of exhaust treatment system that can recycle methyl methacrylate, which comprises the following steps:
(1) exhaust gas is cooled down by admission line by brine freezing machine, makes condensed liquid by being located in brine freezing machine
Liquid storing tube below portion's admission line is collected, and remaining gas enters heat exchanger；
(2) by step (1) treated, exhaust gas enters exchanges heat in heat exchanger heating；
(3) dust in exhaust gas is removed by water ring vacuum pump by step (2) treated exhaust gas, and enters spray column,
Wherein, being added in the spray pond of spray column has alkaline solution；
(4) gas after spray column sprays successively passes through check-valves and flame-retardant device enters incinerator；
(5) oxygen, full combustion are passed through into incinerator；
(6) gas after burning enters back into dust pelletizing system, to remove the dust in exhaust gas.
2. the exhaust treatment system according to claim 1 that methyl methacrylate can be recycled, it is characterised in that: the step
Suddenly in (1), exhaust gas is cooled to-15-- 18 DEG C by brine freezing machine.
3. the exhaust treatment system according to claim 1 that methyl methacrylate can be recycled, it is characterised in that: the step
Suddenly in (2), exhaust gas is warming up to 65-78 DEG C by heat exchanger.
4. the exhaust treatment system according to claim 3 that methyl methacrylate can be recycled, it is characterised in that: described to change
Heat transferring medium inside hot device is water or oil.
5. the exhaust treatment system according to claim 1 that methyl methacrylate can be recycled, it is characterised in that: the step
Suddenly (3) neutral and alkali solution is the mixture of one or both of sodium hydroxide, sodium bicarbonate or sodium carbonate or three kinds, then
Clear water is added thereto, is configured to the alkaline solution that pH is 10-12.
6. the exhaust treatment system according to claim 1 that methyl methacrylate can be recycled, it is characterised in that: the step
Suddenly gas flowmeter is provided at the air inlet in (5) in incinerator.
7. the exhaust treatment system according to claim 6 that methyl methacrylate can be recycled, it is characterised in that: the step
Suddenly the ratio between the oxygen content being passed through in (5) and the volume of waste gas content entered in incinerator are oxygen: exhaust gas=2.5-3.5:1.
8. the exhaust treatment system according to claim 1 that methyl methacrylate can be recycled, it is characterised in that: the step
Suddenly the dust pelletizing system in (6) is cyclone dust collectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606424.7A CN109621676A (en) | 2018-12-27 | 2018-12-27 | A kind of exhaust treatment system that can recycle methyl methacrylate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606424.7A CN109621676A (en) | 2018-12-27 | 2018-12-27 | A kind of exhaust treatment system that can recycle methyl methacrylate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109621676A true CN109621676A (en) | 2019-04-16 |
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ID=66078118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811606424.7A Pending CN109621676A (en) | 2018-12-27 | 2018-12-27 | A kind of exhaust treatment system that can recycle methyl methacrylate |
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| Country | Link |
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| CN (1) | CN109621676A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559694A (en) * | 2020-09-27 | 2021-10-29 | 陕西吾道天行信息科技有限公司 | Energy-concerving and environment-protective chemical waste gas's processing apparatus |
| WO2023117754A1 (en) | 2021-12-23 | 2023-06-29 | Röhm Gmbh | Process for producing alkyl methacrylates with higher yields and reduced emissions of volatile organic compounds |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001028664A1 (en) * | 1999-10-21 | 2001-04-26 | Kronospan Ag | Method for purifying waste gases containing organic compounds and dust particles |
| CN105541622A (en) * | 2016-01-05 | 2016-05-04 | 湖州丰瑞塑化有限公司 | Organic glass recycling process equipment |
| CN205313429U (en) * | 2016-01-19 | 2016-06-15 | 麻城市中优顺建材科技有限公司 | Cracker of inferior gram force reclaimed materials |
| CN107899401A (en) * | 2017-11-27 | 2018-04-13 | 麻城市中优顺建材科技有限公司 | A kind of acrylic factory waste gas treatment process |
| CN108317528A (en) * | 2018-03-22 | 2018-07-24 | 云汇环保科技南通有限公司 | A kind of heat accumulating type heating power oxidation technology for handling VOCs |
-
2018
- 2018-12-27 CN CN201811606424.7A patent/CN109621676A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001028664A1 (en) * | 1999-10-21 | 2001-04-26 | Kronospan Ag | Method for purifying waste gases containing organic compounds and dust particles |
| CN105541622A (en) * | 2016-01-05 | 2016-05-04 | 湖州丰瑞塑化有限公司 | Organic glass recycling process equipment |
| CN205313429U (en) * | 2016-01-19 | 2016-06-15 | 麻城市中优顺建材科技有限公司 | Cracker of inferior gram force reclaimed materials |
| CN107899401A (en) * | 2017-11-27 | 2018-04-13 | 麻城市中优顺建材科技有限公司 | A kind of acrylic factory waste gas treatment process |
| CN108317528A (en) * | 2018-03-22 | 2018-07-24 | 云汇环保科技南通有限公司 | A kind of heat accumulating type heating power oxidation technology for handling VOCs |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559694A (en) * | 2020-09-27 | 2021-10-29 | 陕西吾道天行信息科技有限公司 | Energy-concerving and environment-protective chemical waste gas's processing apparatus |
| WO2023117754A1 (en) | 2021-12-23 | 2023-06-29 | Röhm Gmbh | Process for producing alkyl methacrylates with higher yields and reduced emissions of volatile organic compounds |
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| 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: 20190416 |
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| RJ01 | Rejection of invention patent application after publication |