CN104728852A - Recovery system of trimethylolpropane waste gas - Google Patents
Recovery system of trimethylolpropane waste gas Download PDFInfo
- Publication number
- CN104728852A CN104728852A CN201510139761.XA CN201510139761A CN104728852A CN 104728852 A CN104728852 A CN 104728852A CN 201510139761 A CN201510139761 A CN 201510139761A CN 104728852 A CN104728852 A CN 104728852A
- Authority
- CN
- China
- Prior art keywords
- gas
- waste gas
- condenser
- surge tank
- tank
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
Landscapes
- 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 recovery system of trimethylolpropane waste gas comprises the steps of condensation recovery of waste gas and processing of uncondensed gas and waste liquid. According to the recovery system of the trimethylolpropane waste, the waste liquid gas is condensed into liquid for recovery, the uncondensed gas is heated and is completely turned into a gas phase, and the gas and air supplied by an air blower sufficiently are combusted in a low-pressure boiler to produce steam, and the waste gas is completely converted into carbon dioxide; the waste liquid with steam flows back and is subjected to TPM sewage treatment. The recovery system of the trimethylolpropane waste gas reduces influences on the environment by the waste gas, recovers raw materials needed by production, and saves investment.
Description
Technical field
The present invention relates to a kind of recovery system of organic exhaust gas, particularly a kind of recovery waste gas produced in production trimethylolpropane process.
Background technology
At present, exhaust emission is the chief component of atmosphere pollution, and in face of the situation that exhaust emission is more and more severeer, enterprise needs increasing technology, material resources and investment in human resources when renovating exhaust emission.In the process of producing trimethylolpropane, hutanal, formaldehyde, formic acid have portion gas molecule to exist in condensation kettle, also isooctanol gas molecule is there is in solvent isooctanol in extraction process, formic acid gas molecule during sodium formate exists when evaporating, vacuumize with steam in distillation process and the foreign gas extraction in trimethylolpropane is also had foreign gas molecule, how to process the problem that these gases are trimethylolpropane industry facings.Existing trimethylolpropane industry generally adopts following method process waste gas.
Combustion method: above-mentioned a few portion gas is pooled together and aloft burns, this can by most of waste gas burning, but the liquid got off because of condensation can only send sewage disposal, add the load of sewage disposal, and it is insufficient to burn in atmosphere, cause the unburned gas of part to spread aloft, above-mentioned several raw material and solvent are all excitatory, smell also with stench, affects the life of surrounding resident.
Washing method: send scrubbing tower to wash after being collected by above-mentioned waste gas, waste gas emptying, waste liquid after washing send Sewage Disposal process, this method can by soluble in water for most waste gas, few portion emptying, can toxic emission be reduced, but there is increase wastewater treatment capacity, increase wastewater treatment pressure.
Washing combustion method: the waste gas in above-mentioned washing method is aloft burnt, substantially that exhaust-gas treatment is complete, but add wastewater flow rate, increase wastewater treatment pressure.
In view of above existing technology, process the method for trimethylolpropane waste gas with the object of the present invention is to provide a kind of simple possible, economical and efficient, save material to reach, realize the object of cleaner production.
Summary of the invention
For achieving the above object, the invention provides
A recovery system for trimethylolpropane waste gas, is characterized in that, comprises following treatment step:
(1) a kind of recovery system of trimethylolpropane waste gas, it is characterized in that: extraction tank 1, condensation kettle 2, evaporimeter 3, rectifying column 4, backflash 5, backflash 8, backflash 11, condenser 6, condenser 9, surge tank 7, surge tank 10, surge tank 12, heater 13, air collector 14, low pressure coal-burning boiler 15, gas making steam buffer tank 16, Gas-making Furnace 17, solvent pump 18, product pump 19, described extraction tank 1 and condenser 6, solvent pump 18 is connected, condenser 6 and backflash 5, surge tank 7 is connected, backflash 5 is connected with solvent pump 18, surge tank 7 is connected with heater 13, condensation kettle 2 is connected with condenser 9, product pump 19, and condenser 9 is connected with surge tank 10, backflash 8, and backflash 8 is connected with product pump 19, and condenser 9 is connected with surge tank 10, and evaporimeter 3 is connected with condenser 9, rectifying column 4 is connected with surge tank 12, and surge tank 12 is connected with backflash 11, surge tank 7, surge tank 10, surge tank 12 are connected with heater 13, heater 13 is connected with air collector 14, gas making steam buffer tank 16, air collector 14 is connected with low pressure coal-burning boiler 15, low pressure coal-burning boiler 15 is connected with gas making steam buffer tank 16, and gas making steam buffer tank 16 is connected with Gas-making Furnace 17.
(2) liquid that in (1), dashpot 7 is separated is back to backflash 5, squeezes into extraction tower 1 through solvent pump 18 together with isooctanol mixing of materials with storage tank after being back to condenser 6 cooling from bottom.
(3) liquid that in (1), dashpot 10 is separated is back to backflash 8, comes to squeeze into condensation kettle 2 through product pump 19 together with the mixing of materials such as formic acid, formaldehyde, hutanal and caustic soda with storage tank after being back to condenser 9 cooling from bottom.
(4), after the impurity liquid that in (1), dashpot 12 is separated is back to backflash 11 from bottom, TMP Sewage Disposal after being back to backflash 8, is sent.
(5) surge tank 7 in (1), surge tank 10, the uncooled gas and vapor permeation of surge tank 12 enter heater 13 and are heated to more than 100 DEG C and send air collector 14, concentrate and send low pressure coal-burning boiler 15 blower inlet, gas making steam buffer tank 16 is sent through air blast suction low pressure coal-burning boiler 15 producing steam that burns, in gas making steam buffer tank 16, most steam send Gas-making Furnace 17 to be used as gas processed, some vapor send heater 13 to be used as the thermal source of waste gas heating, send boiler deoxidizing method water tank after this some vapor condensation.
(6) waste gas that the waste gas in (5) in air collector 12 produces for preparing trimethylolpropane, only containing C, H, O tri-kinds of elements in the chemical formula of raw materials and solvent, after air blast fully increases oxygen content, sufficient combustion, produces CO after waste gas burning
2, do not increase SO
x, N
xo
y, do not increase the load of former low-pressure boiler smoke processing system.
(7) in (1), the medium of condenser 6, the used cooling of condenser 9 is the cool circulation water that cooling tower is sent here, send circulation down cycles to utilize after heat exchange.
Accompanying drawing explanation
Fig. 1 is the general flow chart representing gas recovery system of the present invention.
Detailed description of the invention
Gas recovery system of the present invention comprises recovery two aspects of the recycling of waste gas, raw material and solvent.Exhaust treatment system comprises the cooling of waste gas, concentrated heating and burning byproduct steam; The recovery of raw material and solvent is recycled after being cooled by waste gas and becoming liquid, part waste liquid send organic sewage treating stations to process.
The recycling of waste gas
Native system process mainly comprise waste gas condensation, collection, heat and send low-pressure boiler byproduct steam.
Extraction tank 1 isooctanol used has part to volatilize isooctanol gas molecule at normal temperatures and pressures, and this portion gas send heater 13 after sending condenser 6 to cool after surge tank 7 cushions;
Send condenser 9 to cool after the gas formic acid molecule evaporated in gas molecule and sodium formate evaporimeter 3 that formic acid in condensation kettle 2, formaldehyde and hutanal are formed converges, cooled send surge tank 10 buffering after send heater 13;
Foreign gas in rectifying column 4 after steam vacuumizes send heater 13 after sending dashpot 12 to cushion;
Send heater 13 to heat after above-mentioned gas collects, heating temperatures, to more than 100 DEG C, send air collector 14, and the mist in air collector 14 send low pressure coal-burning boiler 15 blower inlet, send in low pressure coal-burning boiler 15 and burn after air blast;
Low pressure coal-burning boiler 15 producing steams send gas making surge tank 16, and after buffering, most steam send Gas-making Furnace 17 gas processed, and small part steam send heater 13 to be used as to heat the thermal source of mist, and the condensate liquid after steam-condensation send boiler deoxidizing method water tank to recycle.
Each condenser cooling source used is recirculated water, and recirculated water send circulation down cycles to utilize after heat exchange.
Owing to preparing trimethylolpropane raw material used only containing C, H, O, air blast is adopted again to add the oxygen content of gas combustion, without SO
xand N
xo
yand sufficient combustion, therefore the tail gas discharged after waste gas burning is CO
2, do not increase the load of former low pressure fire coal boiler fume treatment system.
The recovery of raw material and solvent
The isooctanol liquid backflow that surge tank 7 is separated, to condenser 6, is back to backflash 5 after condensation, carry out to send together with isooctanol solvent pump 18 import with storage tank, squeezes into extraction tank 1 re-use through solvent pump 18;
The isolated mixing material of surge tank 10 (formic acid, formaldehyde and hutanal) is back to condenser 9, backflash 8 is back to after condensation, the material (formic acid, formaldehyde and hutanal) come with storage tank mixes and send product pump 19 import, squeezes into condensation kettle 2 re-use through product pump 19;
The liquid that surge tank 12 is separated, is back to backflash 11, send TMP Sewage Disposal to carry out biochemistry and materializing strategy.
This waste gas processing method can avoid exhaust emission, reduce the pressure that process waste gas brings wastewater treatment, waste gas can also be turned waste into wealth, realize the object of energy-saving and emission-reduction, cleaner production.
Claims (7)
1. the recovery system of a trimethylolpropane waste gas, it is characterized in that: extraction tank (1), condensation kettle (2), evaporimeter (3), rectifying column (4), backflash (5, 8, 11), condenser (6, 9), surge tank (7, 10, 12), heater (13), air collector (14), low pressure coal-burning boiler (15), gas making steam buffer tank (16), Gas-making Furnace (17), solvent pump (18), product pump (19), described extraction tank (1) and condenser (6), solvent pump (18) is connected, condenser (6) and backflash (5), surge tank (7) is connected, backflash (5) is connected with solvent pump (18), surge tank (7) is connected with heater (13), condensation kettle (2) is connected with condenser (9), product pump (19), condenser (9) is connected with surge tank (10), backflash (8), backflash (8) is connected with product pump (19), condenser (9) is connected with surge tank (10), and evaporimeter (3) is connected with condenser (9), rectifying column (4) is connected with surge tank (12), and surge tank (12) is connected with backflash (11), surge tank (7), surge tank (10), surge tank (12) are connected with heater (13), heater (13) is connected with air collector (14), gas making steam buffer tank (16), air collector (14) is connected with low pressure coal-burning boiler (15), low pressure coal-burning boiler (15) is connected with gas making steam buffer tank (16), and gas making steam buffer tank (16) is connected with Gas-making Furnace (17).
2. waste gas processing method according to claim 1, it is characterized in that, after the liquid that dashpot (7) is separated is back to condenser (6) cooling from bottom, be back to backflash (5), come to squeeze into extraction tower (1) through solvent pump (18) together with isooctanol mixing of materials with storage tank.
3. waste gas processing method according to claim 1, it is characterized in that, after the liquid that dashpot (10) is separated is back to condenser (9) cooling from bottom, be back to backflash (8), come with storage tank to squeeze into condensation kettle (2) through product pump (19) together with the mixing of materials such as formic acid, formaldehyde, hutanal and caustic soda.
4. waste gas processing method according to claim 1, is characterized in that, after the impurity liquid that dashpot (12) is separated is back to backflash (11) from bottom, send TMP Sewage Disposal after being back to backflash (8).
5. waste gas processing method according to claim 1, it is characterized in that, surge tank (7), surge tank (10), surge tank (12) uncooled gas and vapor permeation enters heater (13) and is heated to more than 100 DEG C and send air collector (14), concentrate and send low pressure coal-burning boiler (15) blower inlet, gas making steam buffer tank (16) is sent through air blast suction low pressure coal-burning boiler (15) burning producing steam, in gas making steam buffer tank (16), most steam send Gas-making Furnace (17) to be used as gas processed, the thermal source that some vapor send heater (13) to heat as waste gas, boiler deoxidizing method water tank is sent after this some vapor condensation.
6. according to claim 5, the waste gas that waste gas in air collector (12) produces for preparing trimethylolpropane, only containing C, H, O tri-kinds of elements in the chemical formula of raw materials and solvent, after air blast fully increases oxygen content, sufficient combustion, produces CO after waste gas burning
2, do not increase SO
x, N
xo
y, do not increase the load of former low-pressure boiler smoke processing system.
7. waste gas processing method according to claim 1, is further characterized in that, the medium of the used cooling of condenser (6), condenser (9) is the cool circulation water that cooling tower is sent here, send circulation down cycles to utilize after heat exchange.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728852A true CN104728852A (en) | 2015-06-24 |
| CN104728852B CN104728852B (en) | 2017-03-01 |
Family
ID=53453006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510139761.XA Active CN104728852B (en) | 2015-03-27 | 2015-03-27 | A kind of recovery system of trimethylolpropane waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728852B (en) |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104728852B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104533551A (en) | Waste heat recovery IGCC (integrated gasification combined cycle) combined heat and power generation central heating system and method | |
| CN105664857A (en) | Clean, environment-friendly and efficient activated carbon regeneration device | |
| CN103418220A (en) | Gas-fired boiler (direct-fired machine) flue-gas waste heat recovery device integrating functions of denitration and water collection | |
| CN101532769B (en) | New dry heat reutilization method | |
| CN103047660A (en) | Yellow phosphorus tail gas recycling system | |
| CN210772215U (en) | Smoke tower integrated smoke waste heat recovery device for waste incineration power plant | |
| EP2634483A2 (en) | Method for providing heat to post combustion capture process | |
| CN104728852A (en) | Recovery system of trimethylolpropane waste gas | |
| CN111895415A (en) | Wet garbage drying system | |
| CN209507588U (en) | Processing coke oven gas desulfurization produces the device of low bright sulfur sulphur and secondary salt waste liquid | |
| CN103537112B (en) | A kind of method from the hot carrier gas recycle-water of brown coal drying | |
| CN203082895U (en) | Yellow phosphorus off gas recycling system | |
| CN101613613A (en) | The efficient heat energy of used during fast thermal cracking of straw utilizes method | |
| CN209840119U (en) | Waste rubber regeneration reation kettle exhaust treatment device | |
| CN212057351U (en) | Recovery system of residual heat of flue gas and moisture of coal-fired unit | |
| CN111748672B (en) | Short-process low-cost CO preparation method by converter gas2And high-value application system and process | |
| CN110304804B (en) | Sludge thermal conditioning and drying carbonization energy-saving system | |
| CN103807865B (en) | With the gas fired-boiler smoke heat energy recovery system of spray chamber two-part | |
| CN107099315B (en) | Method for separating water vapor and raw coke oven gas in low-rank coal pyrolysis process | |
| CN109764345B (en) | Waste rubber regeneration reaction kettle waste gas treatment device | |
| CN218269134U (en) | Sensible heat and latent heat deep utilization system of flue gas of ultralow-emission waste incineration power plant | |
| CN220689111U (en) | Flue gas condensation water lifting and waste heat recovery system | |
| CN113959241B (en) | Flue gas waste heat recovery and wet smoke plume elimination system of spray drying tower | |
| CN205347332U (en) | Device of pyrolkigneous liquid, wood tar is retrieved to production charcoal | |
| CN209876933U (en) | Waste disposal system based on waste incineration waste heat is recycled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
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. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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 |
|
| TR01 | Transfer of patent right |