CN104728852B - A kind of recovery system of trimethylolpropane waste gas - Google Patents
A kind of recovery system of trimethylolpropane waste gas Download PDFInfo
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- CN104728852B CN104728852B CN201510139761.XA CN201510139761A CN104728852B CN 104728852 B CN104728852 B CN 104728852B CN 201510139761 A CN201510139761 A CN 201510139761A CN 104728852 B CN104728852 B CN 104728852B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
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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
- B01D53/002—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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A kind of trimethylolpropane gas recovery system, including waste gas condensation reclaim, the process of uncooled gas and waste liquid, by waste gas condensation for liquid after recycle；Uncooled gas is heated be changed into gas phase completely after the air sent in low-pressure boiler and aerator fully burn producing steam, waste gas is completely converted into CO2；TMP sewage disposal is sent after waste reflux with steam.The method reduce the impact to environment for the waste gas, reclaimed simultaneously and produced required raw material, reduced investment.
Description
Technical field
The present invention relates to a kind of recovery system of organic exhaust gas, particularly to one kind during producing trimethylolpropane
Waste gas produced recovery.
Background technology
At present, exhaust emission is the key component of atmospheric pollution, in face of the increasingly severeer situation of exhaust emission,
Enterprise needs increasing technology, material resources and investment in human resources when renovating exhaust emission.During producing trimethylolpropane, just
, with the presence of portion gas molecule in condensation kettle, solvent isooctanol there is also different pungent in extraction process for butyraldehyde, formaldehyde, formic acid
Alcohol gas molecule, sodium formate exist in evaporation in formic acid gas molecule, use steam evacuation in distillation process by trihydroxy methyl
Foreign gas in propane is extracted out also foreign gas molecule, and how to process these gases is the common face of trimethylolpropane industry
The problem faced.Existing trimethylolpropane industry typically adopts following methods to process waste gas.
Combustion method：Above-mentioned several portion gas are pooled together and burn in the air, this can by most of waste gas burning,
But the liquid because condensing out can only send sewage disposal, increased the load of sewage disposal, and burn in atmosphere and do not fill
Point, lead to partly unburned gas to spread in the air, above-mentioned several raw materials and solvent are all excitatory, also carry stench
Abnormal smells from the patient, impact surrounding resident life.
Washing method：Scrubbing tower is sent to wash after above-mentioned waste gas is collected, waste gas is vented, the waste liquid after washing send Sewage Disposal
Process, this method can will be soluble in water for most waste gas, the emptying of few portion, waste gas discharge can be reduced, but deposit
In increase wastewater treatment capacity, increase wastewater treatment pressure.
Washing combustion method：Waste gas in above-mentioned washing method is burnt in the air, substantially by exhaust-gas treatment completely, but increased
Wastewater flow rate, increases wastewater treatment pressure.
In view of above existing technology, it is an object of the invention to provide a kind of simple possible, economical and efficient ground processes three
The method of hydroxymethyl-propane waste gas, is saved material with reaching, and realizes the purpose of clean manufacturing.
Content of the invention
For achieving the above object, the present invention provides
A kind of recovery system of trimethylolpropane waste gas is it is characterised in that include following process step：
(1) a kind of recovery system of trimethylolpropane waste gas it is characterised in that：Extraction tank 1, condensation kettle 2, vaporizer 3,
Rectifying column 4, the first backflash 5, the second backflash 8, the 3rd backflash 11, the first condenser 6, the second condenser 9, first buffer
Tank 7, the second surge tank 10, the 3rd surge tank 12, heater 13, air collector 14, low pressure coal-burning boiler 15, gas making steam buffer tank
16th, Gas-making Furnace 17, solvent pump 18, product pump 19, described extraction tank 1 is connected with the first condenser 6, solvent pump 18, and first
Condenser 6 is connected with the first backflash 5, the first surge tank 7, and the first backflash 5 is connected with solvent pump 18, the first surge tank
7 are connected with heater 13；Condensation kettle 2 is connected with the second condenser 9, product pump 19, the second condenser 9 and the second surge tank
10th, the second backflash 8 is connected, and the second backflash 8 is connected with product pump 19, and vaporizer 3 is connected with the second condenser 9；
Rectifying column 4 is connected with the 3rd surge tank 12, and the 3rd surge tank 12 is connected with the 3rd backflash 11；Second surge tank 10,
Three surge tanks 12 are connected with heater 13, and heater 13 is connected with air collector 14, gas making steam buffer tank 16, air collector 14
It is connected with low pressure coal-burning boiler 15, low pressure coal-burning boiler 15 is connected with gas making steam buffer tank 16, gas making steam buffer tank
16 are connected with Gas-making Furnace 17.
(2) in (1), the detached liquid of the first surge tank 7, after bottom is back to the first condenser 6 cooling, is back to first
Backflash 5, carrys out isooctanol material with storage tank and is mixed to squeeze into extraction tank 1 through solvent pump 18.
(3) in (1), the detached liquid of the second surge tank 10, after bottom is back to the second condenser 9 cooling, is back to the
Two backflashes 8, carry out the materials such as formic acid, formaldehyde, hutanal and Caustic soda with storage tank and are mixed to squeeze into condensation kettle 2 through product pump 19.
(4) in (1), the detached impurity liquid of the 3rd surge tank 12, after bottom is back to the 3rd backflash 11, send TMP dirty
Water treatment station.
(5) in (1), the first surge tank 7, the second surge tank 10, the uncooled gas mixing of the 3rd surge tank 12 enter heating
Device 13 is heated to more than 100 DEG C and send air collector 14, concentrates and send low pressure coal-burning boiler 15 blower inlet, through aerator suction low pressure
Coal-burning boiler 15 burning producing steam send gas making steam buffer tank 16, and in gas making steam buffer tank 16, most steam send Gas-making Furnace
17 are used as gas processed, and some vapor send heater 13 to be used as the thermal source of waste gas heating, send boiler deoxidizing method water after the condensation of this some vapor
Case.
(6) waste gas in air collector 14 in (5) is to prepare waste gas produced by trimethylolpropane, raw materials and molten
Containing only tri- kinds of elements of C, H, O in the chemical formula of agent, after aerator fully increases oxygen content, burning fully, is produced after waste gas burning
Raw CO2, do not increase SOX、NXOY, do not increase the load of former low-pressure boiler smoke processing system.
(7) SAPMAC method that in (1), the first condenser 6, the medium of the used cooling of the second condenser 9 are sent for cooling tower
Water, send circulation down cycles to utilize after heat exchange.
Brief description
Fig. 1 is the general flow chart of the gas recovery system representing the present invention.
Specific embodiment
The gas recovery system of the present invention includes two aspects of recovery of recycling, raw material and the solvent of waste gas.Useless
Gas processing system includes the cooling of waste gas, concentrates heating and burning byproduct steam；Waste gas is cooled down by the recovery of raw material and solvent
Recycle after being changed into liquid, part waste liquid send organic sewage treating stations to be processed.
The recycling of waste gas
The system processes the condensation of main inclusion waste gas, collects, heats and send low-pressure boiler byproduct steam.
Isooctanol used by extraction tank 1 has part to volatilize isooctanol gas molecule at normal temperatures and pressures, this portion gas
After sending the first condenser 6 cooling, after the first surge tank 7 buffering, send heater 13；
Evaporate in the gas molecule of the formic acid in condensation kettle 2, formaldehyde and hutanal formation and sodium formate vaporizer 3
Gas formic acid molecule send the second condenser 9 to cool down after converging, the second surge tank 10 that send after cooling send heater 13 after buffering；
In rectifying column 4, the foreign gas after steam evacuation send heater 13 after sending the 3rd surge tank 12 buffering；
Above-mentioned gas send heater 13 to heat after collecting, temperature is heated to more than 100 DEG C, send air collector 14, air collector 14
In mixed gas send low pressure coal-burning boiler 15 blower inlet, send in low pressure coal-burning boiler 15 burning after aerator；
15 producing steams of low pressure coal-burning boiler send gas making surge tank 16, and after buffering, most steam send Gas-making Furnace 17 to make
Gas, small part steam send heater 13 to be used as to heat the thermal source of mixed gas, and the condensed condensed fluid of steam send boiler deoxidizing method water
Case recycles.
Cooling source used by each condenser is recirculated water, and recirculated water send circulation down cycles to utilize after heat exchange.
Due to preparing raw material used by trimethylolpropane containing only C, H, O, and gas combustion be increased using aerator
Oxygen content, no SOXAnd NXOYAnd burn fully, therefore after waste gas burning, the tail gas of discharge is CO2, do not increase former low pressure fire coal pot
The load of kiln gas processing system.
Raw material and the recovery of solvent
The isooctanol liquid that first surge tank 7 is separated is back to the first condenser 6, is back to the first backflow after condensation
Groove 5, send solvent pump 18 import together with isooctanol with storage tank, squeezes into extraction tank 1 through solvent pump 18 and re-uses；
The mixing liquid (formic acid, formaldehyde and hutanal) that second surge tank 10 is isolated is back to the second condenser 9, condensation
After be back to the second backflash 8, the material (formic acid, formaldehyde and hutanal) being come with storage tank is mixed and send product pump 19 import, through thing
Material pump 19 is squeezed into condensation kettle 2 and is re-used；
The detached liquid of 3rd surge tank 12, is back to the 3rd backflash 11, send TMP Sewage Disposal to carry out biochemistry and thing
Change is processed.
This waste gas processing method had both been avoided that exhaust emission, reduces process waste gas and brings the pressure of wastewater treatment moreover it is possible to incite somebody to action
Waste gas is turned waste into wealth, and realizes the purpose of energy-saving and emission-reduction, clean manufacturing.
Claims (7)
1. a kind of recovery system of trimethylolpropane waste gas it is characterised in that：Extraction tank (1), condensation kettle (2), vaporizer
(3), rectifying column (4), the first backflash (5), the second backflash (8), the 3rd backflash (11), the first condenser (6), second cold
Condenser (9), the first surge tank (7), the second surge tank (10), the 3rd surge tank (12), heater (13), air collector (14), low
Compression ignition coal burning boiler (15), gas making steam buffer tank (16), Gas-making Furnace (17), solvent pump (18), product pump (19), described extraction
Groove (1) is connected with the first condenser (6), solvent pump (18), the first condenser (6) and the first backflash (5), the first surge tank
(7) it is connected, the first backflash (5) is connected with solvent pump (18), the first surge tank (7) is connected with heater (13)；Contracting
Close kettle (2) to be connected with the second condenser (9), product pump (19), the second condenser (9) and the second surge tank (10), second time
Chute (8) is connected, and the second backflash (8) is connected with product pump (19), and vaporizer (3) is connected with the second condenser (9)；
Rectifying column (4) is connected with the 3rd surge tank (12), and the 3rd surge tank (12) is connected with the 3rd backflash (11)；Second buffering
Tank (10), the 3rd surge tank (12) are connected with heater (13), heater (13) and air collector (14), gas making steam buffer tank
(16) it is connected, air collector (14) is connected with low pressure coal-burning boiler (15), low pressure coal-burning boiler (15) and gas making steam buffer
Tank (16) is connected, and gas making steam buffer tank (16) is connected with Gas-making Furnace (17).
2. the recovery system of trimethylolpropane waste gas according to claim 1 is it is characterised in that the first surge tank (7)
Detached liquid, after bottom is back to the first condenser (6) cooling, is back to the first backflash (5), carrys out isooctanol with storage tank
Material is mixed and squeezes into extraction tank (1) through solvent pump (18).
3. the recovery system of trimethylolpropane waste gas according to claim 1 is it is characterised in that the second surge tank (10)
Detached liquid, after bottom is back to the second condenser (9) cooling, is back to the second backflash (8), comes formic acid, first with storage tank
Aldehyde, hutanal and Caustic soda material are mixed and squeeze into condensation kettle (2) through product pump (19).
4. the recovery system of trimethylolpropane waste gas according to claim 1 is it is characterised in that the 3rd surge tank (12)
Detached impurity liquid, after bottom is back to the 3rd backflash (11), send TMP Sewage Disposal.
5. trimethylolpropane waste gas according to claim 1 recovery system it is characterised in that the first surge tank (7),
Second surge tank (10), the 3rd surge tank (12) uncooled gas mixing entrance heater (13) are heated to more than 100 DEG C and send
Air collector (14), concentrates and send low pressure coal-burning boiler (15) blower inlet, through aerator suction low pressure coal-burning boiler (15) burning
Producing steam send gas making steam buffer tank (16), and in gas making steam buffer tank (16), most steam send Gas-making Furnace (17) to make gas processed
With some vapor send heater (13) to be used as the thermal source of waste gas heating, send boiler deoxidizing method water tank after the condensation of this some vapor.
6. the recovery system of trimethylolpropane waste gas according to claim 5, the waste gas in air collector (14) is preparation
Waste gas produced by three light methylpropanes, containing only tri- kinds of elements of C, H, O in the chemical formula of raw materials and solvent, in aerator
After fully increasing oxygen content, burning fully, produces CO after waste gas burning2, do not increase SOX、NXOY, do not increase former low-pressure boiler cigarette
The load of gas processing system.
7. the recovery system of trimethylolpropane waste gas according to claim 1, is further characterized in that, the first condenser
(6), the cool circulation water that the medium of the used cooling of the second condenser (9) is sent for cooling tower, send circulation after heat exchange
Down cycles utilize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139761.XA CN104728852B (en) | 2015-03-27 | 2015-03-27 | A kind of recovery system of trimethylolpropane waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139761.XA CN104728852B (en) | 2015-03-27 | 2015-03-27 | A kind of recovery system of trimethylolpropane waste gas |
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| Publication Number | Publication Date |
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| CN104728852A CN104728852A (en) | 2015-06-24 |
| CN104728852B true CN104728852B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510139761.XA Active CN104728852B (en) | 2015-03-27 | 2015-03-27 | A kind of recovery system of trimethylolpropane waste gas |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07318042A (en) * | 1994-05-20 | 1995-12-08 | Kao Corp | Burning method for heavy oil emulsion fuel |
| CN202246487U (en) * | 2011-10-12 | 2012-05-30 | 浠水县福瑞德化工有限责任公司 | Practical device for utilizing primary steam heat energy for urea |
| CN102617285A (en) * | 2012-03-09 | 2012-08-01 | 湖北三江化工有限责任公司 | Method for generating trimethylolpropane by condensation of formaldehyde and n-butyl alcohol |
| CN202470078U (en) * | 2012-02-14 | 2012-10-03 | 湖北三江化工有限责任公司 | Energy-saving system using formaldehyde tail gas |
| CN202892961U (en) * | 2012-10-24 | 2013-04-24 | 浙江鸿基石化有限公司 | Recovery device for tail gas generated in polypropylene production process |
| CN203469525U (en) * | 2013-08-08 | 2014-03-12 | 淄博齐翔腾达化工股份有限公司 | Isobutylene tail gas recycling device |
-
2015
- 2015-03-27 CN CN201510139761.XA patent/CN104728852B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07318042A (en) * | 1994-05-20 | 1995-12-08 | Kao Corp | Burning method for heavy oil emulsion fuel |
| CN202246487U (en) * | 2011-10-12 | 2012-05-30 | 浠水县福瑞德化工有限责任公司 | Practical device for utilizing primary steam heat energy for urea |
| CN202470078U (en) * | 2012-02-14 | 2012-10-03 | 湖北三江化工有限责任公司 | Energy-saving system using formaldehyde tail gas |
| CN102617285A (en) * | 2012-03-09 | 2012-08-01 | 湖北三江化工有限责任公司 | Method for generating trimethylolpropane by condensation of formaldehyde and n-butyl alcohol |
| CN202892961U (en) * | 2012-10-24 | 2013-04-24 | 浙江鸿基石化有限公司 | Recovery device for tail gas generated in polypropylene production process |
| CN203469525U (en) * | 2013-08-08 | 2014-03-12 | 淄博齐翔腾达化工股份有限公司 | Isobutylene tail gas recycling device |
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| CN104728852A (en) | 2015-06-24 |
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Effective date of registration: 20180717 Address after: The 443007 Hu Bei provinces cities Yi Chang Xiao pavilions area Xiao No. 399, Ting Avenues Patentee after: Yihua Chemical Co., Ltd., Hubei Address before: 438000 Riverside Avenue, Qingquan Town, Lishui County, Huanggang City, Hubei Province Patentee before: Hubei Sanjiang Chemical Co., Ltd. |
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Effective date of registration: 20181015 Address after: 443200 Yichang City, Hubei province Zhijiang City Patentee after: Hubei Yihua new Mstar Technology Ltd Address before: 443007 No. 399 Ting Ting Road, Ting Ting District, Yichang, Hubei Patentee before: Yihua Chemical Co., Ltd., Hubei |