CN106000012B - A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration and its device - Google Patents
A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration and its device Download PDFInfo
- Publication number
- CN106000012B CN106000012B CN201610610661.5A CN201610610661A CN106000012B CN 106000012 B CN106000012 B CN 106000012B CN 201610610661 A CN201610610661 A CN 201610610661A CN 106000012 B CN106000012 B CN 106000012B
- Authority
- CN
- China
- Prior art keywords
- concentration
- tail gas
- tower
- absorption
- liquid
- 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.)
- Active
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
- B01D53/14—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
- B01D53/1487—Removing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration and its device, belong to chemical industry and petrochemical technology field.It is absorbed by direct segmented, absorbs heat using evaporation, light concentration gas enters lower concentration absorbing tower and thin liquid is made, and thin liquid enters high-concentration absorbent tower and carries out spray-absorption again, and the absorbing liquid of high concentration is made.By using above-mentioned technology, compared with the prior art, present invention saves cooler, condenser and knockout drums before tower, its energy-saving effect is notable, recycling water consumption reduces by 90%, is not necessarily to water at low temperature, and absorbing liquid concentration reaches 49%, the energy consumption of follow-up distillation operation is greatly alleviated, there is significantly economic benefit and environmental benefit.By this technique can substantially reduce recirculated water, water at low temperature dosage, and the absorbing liquid of higher concentration can be made.
Description
Technical field
The invention belongs to chemical industry and petrochemical technology fields, and in particular to it is a kind of can reduce recirculated water, water at low temperature dosage, and
And the energy-efficient recovery process of the high-temperature tail gas containing various concentration and its device of the absorbing liquid of higher concentration can be made.
Background technology
It is a kind of common chemical engineering unit operation, absorbing liquid to carry out recycling to active principle in emission using absorption process
Concentration depend primarily on tail gas concentration, the equilibrium concentration of the more high then absorbing liquid of tail gas concentration is bigger, the actual absorption of absorbing liquid
Concentration is also bigger.
In chemical process, the high-temperature tail gas of various concentration is will produce, common technique is by the height of various concentration
After warm tail gas mixing, cooling condensing recovery active principle is carried out, is then being absorbed into absorption tower or is being the height to various concentration
Individually then condensation is absorbed into absorption tower warm tail gas again.For low concentration tail gas, can only obtain using direct condensation low dense
The recovered liquid of degree, and for high concentration tail gas, the recovered liquid of higher concentration can be obtained using direct condensation（With air humidity also phase
It closes, air humidity is lower, and obtained recovered liquid concentration is higher）, and since air inlet active principle concentration is low in follow-up absorption tower
（Have been subjected to condensed absorbent）, therefore bottom of tower absorbing liquid concentration is with regard to relatively low.Different according to active principle boiling point, condensation segment needs disappear
Consume other refrigerants such as a large amount of recirculated waters, water at low temperature.The dosage of traditional recovery scheme refrigerant is big, and recovered liquid concentration is not high.
Invention content
For the above-mentioned problems in the prior art, the present invention is intended to provide a kind of high-temperature tail gas containing various concentration is high
Imitate energy-saving reclaiming process and its device.
The energy-efficient recovery process of a kind of high-temperature tail gas containing various concentration, it is characterised in that by being directly segmented
Formula absorbs, and absorbs heat using evaporation, light concentration gas enters lower concentration absorbing tower and thin liquid is made, and thin liquid enters high-concentration absorbent
Tower carries out spray-absorption again, and the absorbing liquid of high concentration is made.
The energy-efficient recovery process of a kind of high-temperature tail gas containing various concentration, it is characterised in that specifically include as follows
Step：
1）High-temperature tail gas is segmented by concentration, from low concentration to high concentration successively by the high-temperature tail gas of various concentration section
Enter in corresponding absorption tower in order, is absorbed with fresh soft water；
2）Each absorption tower connect to form interior cycle with circulating pump, heat exchanger, dilute after the absorption that absorb the bottom of the tower comes out
Liquid part returns to absorption tower and forms cycle, the suction of adjacent high-concentration absorbent tower middle part extraction section thin liquid and lower concentration absorbing tower
Thin liquid mixes after receipts, after heat exchanger exchanges heat, enters back into high-concentration absorbent tower and carries out spray-absorption, finally obtain the suction of high concentration
Receive liquid.
A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration, it is characterised in that energy in high-temperature tail gas
The active principle of recycling is that polarity is high, and volatility is small, boiling point is high and dissolves each other in water or substance that solubility is larger.
A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration, it is characterised in that energy in high-temperature tail gas
The active principle of recycling is amine, alcohols, ketone or acids.
A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration, it is characterised in that energy in high-temperature tail gas
The active principle of recycling is selected from formamide, DMAC, ethylene glycol, propylene glycol, acetic acid, propionic acid, dimethyl sulfoxide (DMSO) or N- methylpyrroles
Alkanone.
A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration, it is characterised in that after absorption thin liquid from
The middle and upper part on absorption tower is back to absorption tower.
The energy-efficient retracting device of high-temperature tail gas containing various concentration, it is characterised in that including multiple absorption towers,
From left to right the tail gas concentration of each absorption tower processing gradually rises in order, each absorb the bottom of the tower be separately connected circulating pump and
Heat exchanger is equipped with mixing liquid storage tank between two neighboring absorption tower, mixes and be equipped with heat exchanger, high temperature between liquid storage tank and absorption tower
Tail gas is entered by concentration from absorption tower lower part, and fresh soft water enters from absorption tower top, and heat exchanger discharge port is divided into two-way,
Cycle formed in is back in absorption tower all the way, and another way flows into mixing liquid storage tank, each to absorb since second absorption tower
Liquid outlet is set in the middle part of tower, and the absorbing liquid of liquid outlet extraction is sent to mixing liquid storage tank, the absorption with previous heat exchanger discharge port
Liquid mixes, and is sprayed again into the absorption tower middle and upper part for being extracted absorbing liquid, and treated, and tail gas is discharged at the top of absorption tower.
The energy-efficient retracting device of high-temperature tail gas containing various concentration, it is characterised in that the suction of heat exchanger discharge port
It receives liquid and enters absorption tower from the middle and upper part on absorption tower.
The energy-efficient retracting device of high-temperature tail gas containing various concentration, it is characterised in that on the last one absorption tower
Portion is tower plate structure, and lower part is filling-material structure, and upper layer fresh water is absorbed as column plate absorption, remaining phegma and circulation fluid are filler
It absorbs.
By using above-mentioned technology, compared with prior art, beneficial effects of the present invention are as follows：
1）Technique provided by the invention is vaporized using fresh water spray to reduce the temperature of feeding gas, low concentration heat exchanger,
High concentration heat exchanger and mixed liquor heat exchanger main function are the Temperature Distribution of stable absorption tower, remove after-heat, only with following
Ring water.It is related to ambient humidity to recycle water consumption.Ambient humidity more systemic circulation water usage amount is bigger, with 70% phase at 40 DEG C
Humidity is fed and is calculated, this technique can save about 90% recirculated water, be not necessarily to water at low temperature；
2）It is to fill out that the high-concentration absorbent tower upper layer fresh water of the present invention, which is absorbed as column plate absorption, remaining phegma and circulation fluid,
Material absorbs, and not only ensure that absorption efficiency but also had reduced energy consumption；
3）The present invention passes through the analysis to absorbent components, existing procedure, it is proposed that direct segmented absorption process, it is energy-efficient
The active principle in the high-temperature tail gas containing various concentration is recycled, the last one high-concentration absorbent tower is made to handle the tail of higher concentration
Gas, compared with the prior art, present invention saves cooler, condenser and knockout drums before tower, and energy-saving effect is notable, recirculated water
Consumption reduces by 90%, is not necessarily to water at low temperature, and absorbing liquid concentration reaches 49%, greatly alleviates the energy consumption of follow-up distillation operation, has
Significantly economic benefit and environmental benefit.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
In figure：1- lower concentration absorbing towers, 2- low concentration circulating pumps, 3- low concentration heat exchangers, 4- mixing liquid storage tanks, 5- mixing
Liquid circulating pump, 6- high-concentration absorbent towers, 7- high concentration heat exchangers, 8- high concentration circulating pumps, 9- mixed liquor heat exchangers.
Specific implementation mode
Below in conjunction with Figure of description and embodiment, the invention will be further described, but protection scope of the present invention is simultaneously
It is not limited only to this：
As shown in Figure 1, the energy-efficient retracting device of the high-temperature tail gas containing various concentration of the present invention, including multiple absorptions
Tower, from left to right the tail gas concentration of each absorption tower processing gradually rises in order, the last one absorption tower top is column plate knot
Structure, lower part are filling-material structure, and upper layer fresh water is absorbed as column plate absorption, remaining phegma and circulation fluid are packing material absorbing；Each
Absorb the bottom of the tower is separately connected circulating pump and heat exchanger, and mixing liquid storage tank is equipped between two neighboring absorption tower, mixes liquid storage tank
Heat exchanger is equipped between absorption tower, high-temperature tail gas is entered by concentration from absorption tower lower part, and fresh soft water is from absorption tower
Portion enters, and heat exchanger discharge port is divided into two-way, is back in absorption tower cycle in being formed all the way, and another way flows into mixed liquor storage
Liquid outlet is arranged since second absorption tower in tank in the middle part of each absorption tower, the absorbing liquid of liquid outlet extraction, which is sent to mixed liquor, stores up
Tank is mixed with the absorbing liquid of previous heat exchanger discharge port, is sprayed again into the absorption tower middle and upper part for being extracted absorbing liquid, processing
Tail gas afterwards is discharged at the top of absorption tower.
As shown in Figure 1, what is handled in the embodiment of the present invention is the tail gas of two kinds of various concentrations, it is divided into low concentration tail gas and height
Concentration tail gas, therefore also there are two absorption tower, lower concentration absorbing tower 1 and high-concentration absorbent towers 6,1 bottom of lower concentration absorbing tower goes out
Mouth is sequentially connected low concentration circulating pump 2 and low concentration heat exchanger 3, and 3 liquid outlet of low concentration heat exchanger is divided into two-way, returns all the way low
1 middle and upper part of concentration absorption tower simultaneously forms interior cycle, and 6 outlet at bottom of high-concentration absorbent tower is sequentially connected high concentration circulating pump 8 and height
Concentration heat exchanger 7 simultaneously forms interior cycle, lower concentration absorbing tower 1
Mixing liquid storage tank 4 is equipped between high-concentration absorbent tower 6, mixing 4 liquid outlet of liquid storage tank passes through mixed liquor circulating pump 5
High-concentration absorbent tower 6 is connected, there are two inlet, one of inlets to connect the another of low concentration heat exchanger 3 for mixing liquid storage tank 4
Liquid outlet all the way, another inlet connect 6 middle part liquid outlet of high-concentration absorbent tower, and 1 bottom of lower concentration absorbing tower is equipped with low dense
Inlet exhaust gas is spent, top is equipped with low concentration exhaust port after fresh soft water import and processing, and 6 bottom of high-concentration absorbent tower is equipped with
High concentration inlet exhaust gas, top are equipped with high concentration exhaust port after fresh soft water import and processing, the cycle on two absorption towers
Liquid import is all disposed within absorption tower middle and upper part, with positioned at fresh soft water import, is on the one hand avoided that the exhaust gas in absorbing liquid by gas
Body is taken out of, and gas uptake on the other hand can be increased, and improves its concentration, and what 1 bottom of lower concentration absorbing tower came out partially absorbs liquid
After being mixed in mixing liquid storage tank 4 with the absorbing liquid that 6 middle part of high-concentration absorbent tower is extracted out, mixing is pumped by mixed liquor circulating pump 5
After liquid heat exchanger 9 exchanges heat, and be back in high-concentration absorbent tower 6, spray-absorption, further increase in gases it is effective at
Divide uptake, to obtain the absorbing liquid of high concentration, active ingredient reaches discharge standard during two absorbing tower top rows are deflated.
Technique provided in an embodiment of the present invention, active principle is with dimethylacetylamide（DMAC）For, with fresh water pair two
The DMAC tail gas of kind concentration is absorbed, and DMAC contents are 0.568% in high concentration tail gas, and temperature is 85 DEG C, flow 105000
m3/ h, DMAC contents are 0.117% in low concentration tail gas, and temperature is 140 DEG C, 58700 m of flow3/h。
Technique provided by the invention, using technique as shown in Figure 1, low concentration tail gas enters lower concentration absorbing tower 1, high concentration
Tail gas enters high-concentration absorbent tower 6, discharges DMAC in gas and reaches discharge standard, relief liquor DMAC concentration theories can reach
More than 60%, considers economy, absorbs the problems such as column efficiency, this technique optimal absorption liquid a concentration of 30% ~ 50% or so.
Technique provided by the invention is vaporized using fresh water spray to reduce the temperature of feeding gas, low concentration heat exchanger, height
Concentration heat exchanger and the Temperature Distribution that mixed liquor heat exchanger main function is stable absorption tower, remove after-heat, only with cycle
Water.It is related to ambient humidity to recycle water consumption.Ambient humidity more systemic circulation water usage amount is bigger, opposite at 40 DEG C 70%
Humidity charging calculates, this technique can save about 90% recirculated water, is not necessarily to water at low temperature.
Technique provided by the invention, it is contemplated that the elements such as plate pressure drop, filler wettability power, absorbing liquid concentration, high concentration are inhaled
Receive 6 upper layer fresh water of tower and be absorbed as that column plate absorbs, remaining phegma and circulation fluid are packing material absorbing, not only ensure that absorption efficiency but also
Reduce energy consumption.
Technique provided by the invention, as various concentration tail gas quantity is more, such as the tail gas that three kinds of concentration difference are larger, it can
Increase a middle concentration absorption tower, auxiliary device is as lower concentration absorbing tower 1, in formation after concentration thin liquid, into high concentration
6 appropriate feed entrance point of absorption tower.The thin liquid of formation or middle thin liquid etc. should all enter the appropriate location of high-concentration absorbent tower 6, with this
Form high-concentration absorbent liquid.
Embodiment 1
Absorbent components are dimethylacetylamide（DMAC）, absorbed with the DMAC tail gas of two kinds of concentration of fresh water pair, two
Kind tail gas composition is as follows：
Traditional handicraft first condenses to 35 DEG C tail gas II, and DMAC contents are about 39% in condensate liquid（About 80% in tail gas II
DMAC is condensed to liquid）, recirculated water 312t/h, water at low temperature 130t/h need to be consumed；Tail gas I is condensed to 35 DEG C, in condensate liquid
DMAC contents are about 15%（About 66% DMAC is condensed to liquid in tail gas II）, recirculated water 300t/h, water at low temperature need to be consumed
40t/h.Condensed tail gas I and tail gas II enter absorption tower after mixing, and absorbing liquid concentration is about 10% or so, and total condensation is inhaled
Liquid concentration is received 28% or so, global cycle water consumption 612t/h, water at low temperature 170t/h.
Using direct segmented absorption technique, for tail gas I in lower concentration absorbing tower cooling spray-absorption, bottom of tower obtains 5% or so
DMAC thin liquids, overhead gas qualified discharge, tail gas II carries out cooling spray-absorption, middle part phegma into high-concentration absorbent tower
Middle and upper part is returned to after being mixed with the DMAC thin liquids of lower concentration absorbing tower bottom of tower, bottom of tower obtains 49% DMAC absorbing liquids, tower overhead gas
Body qualified discharge.Water consumption 60t/h or so is recycled, water at low temperature is not necessarily to.
High-concentration absorbent tower will handle the tail gas of higher concentration, therefore the more former technique of tower height is high, but new process saves tower
Preceding cooler, condenser and knockout drum, total equipment investment are substantially suitable with former technique.This energy saving technology significant effect, cycle
Water consumption reduces by 90%, is not necessarily to water at low temperature, and absorbing liquid concentration reaches 49%, greatly alleviates the energy consumption of follow-up distillation operation, tool
There are significantly economic benefit and environmental benefit.
Embodiment 2
Absorbent components are ethylene glycol（EG）, absorbed with the EG tail gas of two kinds of concentration of fresh water pair, two kinds of tail gas compositions
It is as follows：
Since EG boiling points are higher, condensation only needs recirculated water, is cooled to 40 DEG C, EG contents are about in condensate liquid
38.5%（About 93% EG is condensed to liquid in tail gas I）, recirculated water 40t/h need to be consumed,；Tail gas II is condensed to 40 DEG C, condensation
EG contents are about 51% in liquid（About 95% EG is condensed to liquid in tail gas II）, recirculated water 60t/h need to be consumed.Condensed tail
Gas I and tail gas II enter absorption tower after mixing, absorbing liquid concentration, hereinafter, because EG boiling points are high, is condensed back to high income 5%, should not be with
Recovered liquid mixes, and the EG contents obtained in this way are 46% or so, global cycle water consumption 100t/h.
Using direct segmented absorption technique, tail gas I obtains 10% left side in lower concentration absorbing tower cooling spray-absorption, bottom of tower
Right EG thin liquids, overhead gas qualified discharge, tail gas II carry out cooling spray-absorption, middle part phegma into high-concentration absorbent tower
Middle and upper part is returned to after being mixed with the EG thin liquids of lower concentration absorbing tower bottom of tower, bottom of tower obtains 62% EG absorbing liquids, and overhead gas reaches
Mark discharge.Recycle water consumption 4t/h or so.
Embodiment 3
Absorbent components are propionic acid, are absorbed with the propionic acid tail gas of two kinds of concentration of fresh water pair, and two kinds of tail gas compositions are as follows：
Tail gas I is condensed to 30 DEG C, DMAC contents are about 36.4% in condensate liquid（About 77% propionic acid is condensed in tail gas II
To liquid）, recirculated water 330t/h, water at low temperature 240t/h need to be consumed；Tail gas II is condensed to 30 DEG C, and DMAC contents are about in condensate liquid
17.4%（About 72% propionic acid is condensed to liquid in tail gas II）, recirculated water 287t/h, water at low temperature 330t/h need to be consumed.After condensation
Tail gas I and tail gas II mix after enter absorption tower, absorbing liquid concentration is about 8% or so, and total condensed absorbent liquid concentration is 27%
Left and right, global cycle water consumption 612t/h, water at low temperature 170t/h.
Using direct segmented absorption technique, for tail gas I in lower concentration absorbing tower cooling spray-absorption, bottom of tower obtains 8% or so
Propionic acid thin liquid, overhead gas qualified discharge, tail gas II carries out cooling spray-absorption, middle part phegma into high-concentration absorbent tower
Middle and upper part is returned to after being mixed with the propionic acid thin liquid of lower concentration absorbing tower bottom of tower, bottom of tower obtains 47.6% propionic acid absorbing liquid, tower overhead gas
Body qualified discharge.Water consumption 1t/h or so is recycled, water at low temperature is not necessarily to.
Above-described three embodiments are only wherein three examples of the present invention, every to be related to a variety of suctions of polarity
The high-temperature tail gas for receiving concentration of component absorbs, and can be recycled with present invention process.
Claims (8)
1. a kind of energy-efficient recovery process of high-temperature tail gas containing various concentration, it is characterised in that it is absorbed by direct segmented,
Heat is absorbed using evaporation, light concentration gas enters lower concentration absorbing tower and thin liquid is made, and thin liquid enters the progress of high-concentration absorbent tower
Spray-absorption again is made the absorbing liquid of high concentration, specifically comprises the following steps：
1）High-temperature tail gas is segmented by concentration, by the high-temperature tail gas of various concentration section successively by suitable from low concentration to high concentration
Sequence enters in corresponding absorption tower, is absorbed with fresh soft water；
2）Each absorption tower connect to form interior cycle with circulating pump, heat exchanger, from thin liquid portion after the absorption that absorb the bottom of the tower comes out
Divide and return to absorption tower formation cycle, in the middle part of adjacent high-concentration absorbent tower after the absorption of extraction section thin liquid and lower concentration absorbing tower
Thin liquid mixes, and after heat exchanger exchanges heat, enters back into high-concentration absorbent tower and carries out spray-absorption, finally obtain the absorption of high concentration
Liquid.
2. the energy-efficient recovery process of a kind of high-temperature tail gas containing various concentration according to claim 1, it is characterised in that
Recoverable active principle is that polarity is high in high-temperature tail gas, and volatility is small, boiling point is high and dissolves each other in water or solubility is larger
Substance.
3. the energy-efficient recovery process of a kind of high-temperature tail gas containing various concentration according to claim 2, it is characterised in that
Recoverable active principle is amine, alcohols, ketone or acids in high-temperature tail gas.
4. the energy-efficient recovery process of a kind of high-temperature tail gas containing various concentration according to claim 2, it is characterised in that
Recoverable active principle is selected from formamide, DMAC, ethylene glycol, propylene glycol, acetic acid, propionic acid, dimethyl sulfoxide (DMSO) in high-temperature tail gas
Or N-Methyl pyrrolidone.
5. the energy-efficient recovery process of a kind of high-temperature tail gas containing various concentration according to claim 1, it is characterised in that
Thin liquid is back to absorption tower from the middle and upper part on absorption tower after absorption.
6. the recycling dress used in a kind of energy-efficient recovery process of the high-temperature tail gas according to claim 1 containing various concentration
It sets, it is characterised in that including multiple absorption towers, from left to right the tail gas concentration of each absorption tower processing gradually rises in order, often
A absorb the bottom of the tower is separately connected circulating pump and heat exchanger, and mixing liquid storage tank, mixed liquor storage are equipped between two neighboring absorption tower
Heat exchanger is equipped between tank and absorption tower, high-temperature tail gas is entered by concentration from absorption tower lower part, and fresh soft water is from absorption tower
Top enters, and heat exchanger discharge port is divided into two-way, is back in absorption tower cycle in being formed all the way, and another way flows into mixed liquor storage
Liquid outlet is arranged since second absorption tower in tank in the middle part of each absorption tower, the absorbing liquid of liquid outlet extraction, which is sent to mixed liquor, stores up
Tank is mixed with the absorbing liquid of previous heat exchanger discharge port, is sprayed again into the absorption tower middle and upper part for being extracted absorbing liquid, processing
Tail gas afterwards is discharged at the top of absorption tower.
7. the retracting device used in the energy-efficient recovery process of the high-temperature tail gas according to claim 6 containing various concentration,
It is characterized in that the absorbing liquid of heat exchanger discharge port enters absorption tower from the middle and upper part on absorption tower.
8. the retracting device used in the energy-efficient recovery process of the high-temperature tail gas according to claim 6 containing various concentration,
It is characterized in that the last one absorption tower top is tower plate structure, lower part is filling-material structure, and upper layer fresh water is absorbed as column plate suction
It receives, remaining phegma and circulation fluid are packing material absorbing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610610661.5A CN106000012B (en) | 2016-07-29 | 2016-07-29 | A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610610661.5A CN106000012B (en) | 2016-07-29 | 2016-07-29 | A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106000012A CN106000012A (en) | 2016-10-12 |
| CN106000012B true CN106000012B (en) | 2018-10-30 |
Family
ID=57115586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610610661.5A Active CN106000012B (en) | 2016-07-29 | 2016-07-29 | A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration and its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106000012B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109232228A (en) * | 2018-10-19 | 2019-01-18 | 天津渤化永利化工股份有限公司 | A kind of system and method handling acetic acid plant propionic acid process tail gas |
| CN116603369A (en) * | 2023-04-28 | 2023-08-18 | 成都益志科技有限责任公司 | Absorbent capable of efficiently absorbing sulfur dioxide |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4654205A (en) * | 1986-01-15 | 1987-03-31 | C-I-L Inc. | Sulphur trioxide absorption apparatus and process |
| CN101024603A (en) * | 2007-03-29 | 2007-08-29 | 永港伟方(北京)科技有限公司 | Methanal absorbing system |
| CN103336087A (en) * | 2013-06-07 | 2013-10-02 | 中电投远达环保工程有限公司 | Testing device of desulphurization efficiency and testing method thereof |
| CN203329583U (en) * | 2013-07-04 | 2013-12-11 | 山西潞安矿业(集团)有限责任公司 | Chlorine hydride absorption device in polycrystalline silicon tail gas recovery system |
| CN105642661A (en) * | 2016-03-24 | 2016-06-08 | 浙江工商大学 | Device and process for safely treating aluminum phosphide fumigating residues |
-
2016
- 2016-07-29 CN CN201610610661.5A patent/CN106000012B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4654205A (en) * | 1986-01-15 | 1987-03-31 | C-I-L Inc. | Sulphur trioxide absorption apparatus and process |
| CN101024603A (en) * | 2007-03-29 | 2007-08-29 | 永港伟方(北京)科技有限公司 | Methanal absorbing system |
| CN103336087A (en) * | 2013-06-07 | 2013-10-02 | 中电投远达环保工程有限公司 | Testing device of desulphurization efficiency and testing method thereof |
| CN203329583U (en) * | 2013-07-04 | 2013-12-11 | 山西潞安矿业(集团)有限责任公司 | Chlorine hydride absorption device in polycrystalline silicon tail gas recovery system |
| CN105642661A (en) * | 2016-03-24 | 2016-06-08 | 浙江工商大学 | Device and process for safely treating aluminum phosphide fumigating residues |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106000012A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207627955U (en) | A kind of gasification black water flash system | |
| CN108383085A (en) | A kind of continuity method hydrochloric acid full stripping produces the device and method of hydrogen chloride gas | |
| CN103740567B (en) | High-temperature steam cooling system | |
| CN104709954B (en) | Flue gases of cock oven waste heat ammonia still process desulphurization integrated system | |
| CN103411469B (en) | A kind of cooling tower water steam and heat energy recovering method and system | |
| CN106000012B (en) | A kind of energy-efficient recovery process of high-temperature tail gas containing various concentration and its device | |
| CN103084043A (en) | High-efficiency spraying solvent recovery system and process thereof | |
| CN208893656U (en) | The equipment of NMP recycling heat pump distillation in a kind of production of lithium electricity | |
| CN203436836U (en) | Efficient and energy-saving type three-effect negative-pressure graphite evaporative crystallization device of hydrochloric acid pickling waste liquid | |
| CN103394206A (en) | High-efficiency energy-saving hydrochloric acid pickling waste liquor triple-effect negative-pressure graphite evaporation crystallizer | |
| CN206924601U (en) | A kind of air-liquid circulating system of water-based ink printing baking oven | |
| CN108726617A (en) | A kind of processing of negative pressure ammonia nitrogen waste water and ammonia recovery unit and technique | |
| CN108452639A (en) | The heat recovery and nmp solvent recovery method and device of a kind of lithium battery coating machine exhaust | |
| CN106187679A (en) | The recycling system and method for carbon dioxide in a kind of chlorinated hydrocabon hydrolysis tail gas | |
| CN108658095A (en) | The energy-saving reclaiming process and system that a kind of ammonium hydroxide recycling concentration is easily adjusted | |
| CN205886539U (en) | Energy -efficient recovery unit of high temperature tail gas who contains different concentration | |
| CN110975314B (en) | Closed circulation process system and method for sodium chlorate crystallization and evaporation water | |
| CN206188384U (en) | Chlorine drying system | |
| CN109319739A (en) | A kind of hydrogen chloride drying system and drying means | |
| CN106500086B (en) | A kind of exhaust steam recycling and recovery system | |
| CN206329494U (en) | One kind is used for carbon fibre precursor and produces water ring vacuum pump liquid withdrawal system | |
| CN203474477U (en) | Vapor recycling system for multi-hole ammonium nitrate production process | |
| CN108905245A (en) | A kind of Waste Sulfuric Acid circulation concentrating regenerative utilizes system and its working method | |
| CN106187668B (en) | A kind of method that organic matter recycles in Synthetic Leather exhaust gas | |
| CN207871852U (en) | A kind of heat recovery and nmp solvent retracting device of the exhaust of lithium battery coating machine |
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 | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20161012 Assignee: Shandong Oasis Electronic Technology Co.,Ltd. Assignor: ZHEJIANG TITAN DESIGN & ENGINEERING Co.,Ltd. Contract record no.: X2023330000409 Denomination of invention: A high-efficiency energy-saving recovery process and device for high-temperature exhaust gas with different concentrations Granted publication date: 20181030 License type: Common License Record date: 20230718 |