CN103252161A - Renewable organic amine circulation desulfurization purification tower and renewable organic amine circulation desulfurization technology - Google Patents
Renewable organic amine circulation desulfurization purification tower and renewable organic amine circulation desulfurization technology Download PDFInfo
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- CN103252161A CN103252161A CN2013101730365A CN201310173036A CN103252161A CN 103252161 A CN103252161 A CN 103252161A CN 2013101730365 A CN2013101730365 A CN 2013101730365A CN 201310173036 A CN201310173036 A CN 201310173036A CN 103252161 A CN103252161 A CN 103252161A
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- 150000001412 amines Chemical class 0.000 title claims abstract description 51
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 26
- 230000023556 desulfurization Effects 0.000 title claims abstract description 23
- 238000005516 engineering process Methods 0.000 title claims abstract description 8
- 238000000746 purification Methods 0.000 title abstract 2
- 239000002002 slurry Substances 0.000 claims abstract description 61
- 239000007921 spray Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000008929 regeneration Effects 0.000 claims abstract description 11
- 238000011069 regeneration method Methods 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 35
- 239000003546 flue gas Substances 0.000 claims description 35
- 239000013505 freshwater Substances 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 16
- 230000008676 import Effects 0.000 claims description 15
- 210000002966 serum Anatomy 0.000 claims description 15
- 239000011152 fibreglass Substances 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 5
- 238000003795 desorption Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 29
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- -1 amine salt Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention discloses a renewable organic amine circulation desulfurization purification tower and a renewable organic amine circulation desulfurization technology. A spray area is arranged in the space at the upper part of a cavity of a glass steel tower body; a spray device and a demister are arranged at the upper part of the spray area; a smoke outlet is formed in the top surface of the cavity; the side wall of the tower body is provided with a smoke inlet, a process water inlet and an organic amine feeding hole; the lower part in the cavity is provided with a slurry area; the slurry area is divided into a cold area and a hot area by a clapboard; and the hot area is used for receiving the slurry with the high temperature being 60 DEG C after the smoke is washed, and the cold area is used for receiving the slurry with the low temperature being 43 DEG C after heat exchange. The temperature of the slurry is maintained to be below the volatilization temperature of the organic amine by continuous absorption and heat release, so that the escape of the organic amine is effectively reduced; and meanwhile, the temperature of the slurry is controlled to be within the best SO2 absorption temperature range, so that desulphurization efficiency is greatly improved, and the exchanged heat can be taken as a heat source of the subsequent organic amine desorption regeneration.
Description
Technical field
The invention belongs to the gas cleaning environmental protection equipment.
Background technology
China is the state of first consumption of coal in the world, and first sulfur dioxide (SO2) emissions state also is the most serious country of atmosphere pollution in the world and the third-largest acid rain district in the world.The present atmosphere pollution of China belongs to typical coal-smoke pollution, and atmosphere pollution mainly is sulfur dioxide, overall suspended pellet and nitrogen oxide.Serious atmosphere pollution causes the generation of China's atmospheric environmental security problem, and people health, ecological environment, economic development, social progress are caused appreciable economic loss.Therefore control SO
2Discharging be the primary goal of national air contaminant treatment always.
Present amine process flue gas desulfurization is a kind of desulfurizing agent regeneration type flue gas desulfurization technique, has the desulfuration efficiency height, and absorbent is renewable, SO
2Can recycle, not produce advantages such as secondary pollution, bright development prospect is arranged.Present amine process flue gas desulfurization device is made up of water scrubber, absorption tower, regenerator, heat exchanger, process pump etc.Its technological process is that flue gas at first enters the water washing dedust tower, enters the absorption tower after the dedusting cooling in tower, removes SO with the desulfurization solvent counter current contacting in the absorption tower
2, flue gas after being purified meets environmental protection standard, sends flue or directly discharging back to.Absorb SO
2After rich solution after the laggard solution heat exchanger heat exchange of pressurizeing, enter tower, in tower, by steam stripping, and be heated to be hot lean solution through reboiler.Hot lean solution enters the absorption tower again through the laggard lean pump pressurization of heat exchange after the cooling of lean solution cooler, circulation absorbs SO
2The SO that parses from regenerator
2Purity reaches more than 99% after cooling, separation, can be used as sulfuric acid, liquid SO
2Or needed raw material in the sulphur production.
Present amine process flue gas desulfurization device and complex process, floor space is big, the operating cost height.
Summary of the invention
The objective of the invention is to overcome existing amine process flue gas desulfurization device complex process, floor space is big, and the deficiency that operating cost is high the invention provides a kind of renewable organic amine circulation desulfurization purifying column of integral type.
A kind of renewable organic amine circulation desulfurization purifying column is characterized in that, it comprises a tower body of being made by fiberglass; Tower chamber upper space is made as the spray district, and the spray district arranges spray equipment and demister in top, and tower chamber end face arranges exhanst gas outlet, and the tower body sidewall arranges gas approach, fresh water (FW) import and organic amine charge door near spray district bottom position; The bottom is the slurries district in the tower chamber, and the slurries district is divided into cold-zone and hot-zone with dividing plate, and 60 ℃ of high temperature slurries behind the washing flue gas are admitted in the hot-zone, and 43 ℃ of low temperature slurries after the heat exchange are admitted in the cold-zone; Wherein the hot-zone is communicated with fully with the spray district, and the top, cold-zone is by the cover plate complete closed; In the position, hot-zone of tower body sidewall hot slurries loop exit is set, the cold-zone arranges cold slurries circulation import, and hot slurries loop exit is communicated with cold slurries circulation import by slurry circulating pump and heat exchanger successively; In the position, cold-zone of tower body sidewall cold slurries outlet is set, cold slurries outlet is communicated with the spray water pump, and the spray water pump is communicated with spray equipment again; The position, hot-zone of tower body sidewall also is provided with the bleeder valve for the discharging rich solution, and the position, cold-zone of tower body sidewall also is provided with the refluxing opening that refluxes for lean solution.
Be made as conical bottom at the bottom of the tower of purifying column cold-zone and hot-zone respectively, evacuation port all is set on the conical bottom; Both overcome at Ta Bishang and offered the disadvantage that evacuation port can not be emptied completely slurries in the tower, overcome the problem that dust is easily piled up simultaneously.
Above-mentioned smoke inlet, exhanst gas outlet and all slurries are imported and exported parts and are the fiberglass making, and adopt flange to connect; Subregion dividing plate, cover plate spraying layer brace summer, demister brace summer in the tower are the fiberglass material.
Above-mentioned tower body can be according to the difference of temperature range, with the variation of tower height degree tower body is divided into some joints, and every root section is carried out type selecting according to temperature requirement to fiber glass resin, and selects the tower wall thickness; The joint with the joint between the employing flange be connected.
Organic amine circulation desulfurization technology principle of the present invention is as follows:
In the aqueous solution, the SO of dissolving
2Reversible hydration and ionization process shown in meeting generating polynomial (1), (2):
In water, add organic amine and can increase SO
2Meltage.Hydrogen ion in organic amine and the water reacts, and forms amine salt, and (1), (2) reaction equation react to the right, have increased SO
2Meltage;
Reaction (3) illustrates SO
2Concentration increase, balance moves right, and is conducive to organic amine liquid and removes SO in the flue gas
2Gas.
Renewable organic amine circulation desulfurization technology of the present invention is as follows:
1, after purifying column of the present invention is installed, at first from the import of purifying column fresh water (FW) and organic amine charge door, distinguishes fresh water (FW) and the organic amine of additional proportion; Fresh water (FW) and organic amine become mixed liquor in the purifying column hot-zone, start slurry circulating pump and make mixed serum enter the storage of purifying column cold-zone, store a certain amount of back and start the spray water pump, make mixed serum begin spray;
2, connect flue gas, flue gas at first enters purifying column spray district, the mixed serum water counter current contacting of flue gas and spray, the heat in the flue gas and SO
2The mixed serum that is sprayed in the spray district absorbs, and the flue gas behind the cooling and purifying is discharged from purifying column top exhanst gas outlet;
3, absorb SO
2After about 60 ℃ mixed serum become and contain SO
2Rich solution, and fall to concentrating on the purifying column hot-zone, again through slurry circulating pump constantly extract out and pressurization after enter heat exchanger, be down to volatilization temperature below 43 ℃ through heat exchange, enter the purifying column cold-zone after the cooling and store; The rich solution that the purifying column cold-zone stores is the spray equipment in spray water pump forced feed purifying column again, thereby realizes the circulation of rich solution shower water, and rich solution repeats the SO in the flue gas in the absorption cleaning tower in circulation
2, SO in rich solution
2When reaching finite concentration, discharge from bleeder valve; The dust of Xi Shouing is regularly discharged at the bottom of tower in hot-zone meeting natural subsidence simultaneously.
4, the rich solution of bleeder valve discharge enters the regeneration treatment process, SO in the rich solution in the regeneration treatment process
2Be recovered, become the lean solution that contains organic amine, the lean solution that contains organic amine is got back to the cold-zone of purifying column by refluxing opening, thereby makes organic amine obtain recycling utilization.
Good effect of the present invention is:
1, this tower mainly is applicable to the amine process flue gas desulfurization technique, and the amine process flue gas desulfurization technique is a kind of regeneration type flue gas desulfurization technique, has the desulfuration efficiency height, and absorbent is renewable, SO
2Can recycle, not produce advantages such as secondary pollution; The SO that reclaims
2, can be directly used in and make the high-quality industrial sulphuric acid, do not need to consume sulphur or troilite, do not need to add raw material in addition, make the SO in the flue gas
2Turn waste into wealth, be fully used, both created economic benefit, solved the situation of atmosphere pollution again, economic benefit and social benefit bumper harvests.
2, this tower is a kind of integral type novel energy-saving environment-friendly purifier, takes up an area of few.Because the slurries in the purifying column will rise to about 60 ℃ with the reverse rear slurry temperature that contacts of flue gas, can't satisfy the requirement of cooled flue gas desulfurization, so will be divided into the design in " cold/heat " two districts at the bottom of the tower, by constantly absorb, release heat, slurry temperature is maintained below the organic amine volatilization temperature (45 ℃), can effectively reduce organic amine and escape; Simultaneously, the control slurries are in SO
2The optimal absorption temperature range can improve desulfuration efficiency greatly; The heat that exchanges for can be used as the thermal source of follow-up organic amine desorption and regeneration operation.
4, the dust in the slurries has purified loop slurry to a certain extent in " hot-zone " meeting natural subsidence, has alleviated the live load of heat exchanger, thereby has reduced system energy consumption.
5, purifying column adopts all-glass fibre reinforced plastic to make.Fiberglass all reaches even is better than the traditional handicraft of carbon steel liner at aspects such as corrosion resistance, heat-resisting quantity, resistance to abrasion, intensity, but also have in light weight, characteristics such as operation maintenance is convenient, and cost is low.The glass head tower adopts vertical winding process, inner liner, intensity layer and external protection coating one-shot forming, and liner does not have longitudinal seam, has improved the intensity of goods.
6, reclaim SO
2After the lean solution that contains absorbent obtain recycling utilization, thereby save operating cost.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the invention.
Marginal data, 1--tower body, 2--spray equipment, the 3--demister, 4--exhanst gas outlet, the cold slurries circulation of 5--import, 6--sprays water pump, 7--bleeder valve, the hot slurries loop exit of 8--, the 9--slurry circulating pump, 10--heat exchanger, the import of 11--fresh water (FW), 12--organic amine charge door, the 13--gas approach, 14--sprays the district, the 15--hot-zone, the 16--cold-zone, the cold slurries outlet of 17--, 18--cold-zone evacuation port, 19--hot-zone evacuation port, the 20--dividing plate, the 21--cover plate, 22--refluxing opening, 23--rich solution regeneration treatment facility.
The specific embodiment
As shown in Figure 1, a kind of renewable organic amine circulation desulfurization purifying column, it comprises a tower body 1 of being made by fiberglass; Tower body 1 tower chamber upper space is made as spray district 14, the spray district arranges spray equipment 2 and demister 3 in 14 tops, tower chamber end face arranges exhanst gas outlet 4, and tower body 1 sidewall arranges gas approach 13, fresh water (FW) import 11 and organic amine charge door 12 near spray district 14 bottom positions; The bottom is the slurries district in the tower chamber, and the slurries district is divided into cold-zone 16 and hot-zone 15 with dividing plate; 60 ℃ of high temperature slurries behind the washing flue gas are admitted in hot-zone 15, and 43 ℃ of low temperature slurries after the heat exchange are admitted in cold-zone 16; Wherein hot-zone 15 is communicated with fully with spray district 14, and 16 tops, cold-zone are by cover plate 21 complete closed; 15 positions, hot-zone at tower body 1 sidewall arrange hot slurries loop exit 8, and cold-zone 16 arranges cold slurries circulation import 5, and hot slurries loop exit 8 is communicated with cold slurries circulation import 5 by slurry circulating pump 9 and heat exchanger 10 successively; In 16 positions, cold-zone of tower body 1 sidewall cold slurries outlet 17 is set, cold slurries outlet 17 is communicated with spray water pump 6, and spray water pump 6 is communicated with spray equipment 2 again; 15 positions, hot-zone of tower body 1 sidewall are provided with the bleeder valve 7 for the discharging rich solution, and 16 positions, tower body 1 sidewall cold-zone are provided with the refluxing opening 22 that refluxes for lean solution.
Pile up for dust at the bottom of preventing tower, be made as conical bottom respectively at the bottom of the tower of cold-zone 16 and hot-zone 15, on 16 conical bottom of cold-zone cold-zone evacuation port 18 is set, on 15 conical bottom of hot-zone hot-zone evacuation port 19 is set.
Above-mentioned gas approach 13, exhanst gas outlet 4 and all slurries are imported and exported parts (comprising fresh water (FW) import 11, organic amine charge door 12, hot slurries loop exit 8, cold slurries circulation import 5, cold slurries outlet 17, cold-zone evacuation port 18 and hot-zone evacuation port 19) and are the fiberglass making, and adopt flange to connect; Subregion dividing plate 20, cover plate 21, spraying layer brace summer, demister 3 brace summers in the tower are the fiberglass material.
Above-mentioned tower body 1 can be according to the difference of temperature range, with the variation of tower height degree tower body 1 is divided into some joints, and every root section is carried out type selecting according to temperature requirement to fiber glass resin, and selects the tower wall thickness; The joint with the joint between the employing flange be connected.
Sulfur removal technology of the present invention is as follows:
The first step: after purifying column is installed, at first from purifying column fresh water (FW) import 11 and organic amine charge door 12, distinguish fresh water (FW) and the organic amine of additional proportion; Fresh water (FW) and organic amine become mixed liquor in purifying column hot-zone 15, start slurry circulating pump 9 and make mixed serum enter 16 storages of purifying column cold-zone, store a certain amount of back and start spray water pump 6, make mixed serum begin spray;
Second step: connect flue gas, flue gas at first enters purifying column spray district 14, the mixed serum water counter current contacting of flue gas and spray, the heat in the flue gas and SO
2The mixed serum that is sprayed in spray district 14 absorbs, and the flue gas behind the cooling and purifying is discharged from purifying column top exhanst gas outlet 4;
The 3rd step: absorb SO
2After about 60 ℃ mixed serum become and contain SO
2Rich solution, and fall to concentrating on purifying column hot-zone 15, again through slurry circulating pump 9 constantly extract out and pressurization after enter heat exchanger 10, be down to volatilization temperature below 43 ℃ through heat exchange, enter purifying column cold-zone 16 after the cooling and store; The rich solution that purifying column cold-zone 16 stores is the spray equipment 2 in spray water pump 6 forced feed purifying columns again, thereby realizes the circulation of rich solution shower water, and rich solution repeats the SO in the flue gas in the absorption cleaning tower in circulation
2, SO in rich solution
2When reaching finite concentration, discharge from bleeder valve 7; The dust of Xi Shouing 15 can natural subsidence in the hot-zone simultaneously, and regularly conical bottom is discharged and got final product at the bottom of the tower.
The 4th step: the rich solution that bleeder valve 7 is discharged enters rich solution regeneration treatment facility 23, SO in the rich solution in the regeneration treatment process
2Be recovered, reclaim SO
2After the lean solution that contains organic amine get back to the cold-zone 16 of purifying column by refluxing opening 22, thereby make organic amine obtain recycling utilization.
Claims (3)
1. a renewable organic amine circulation desulfurization purifying column is characterized in that, it comprises a tower body of being made by fiberglass; Tower chamber upper space is made as the spray district, and the spray district arranges spray equipment and demister in top, and tower chamber end face arranges exhanst gas outlet, and the tower body sidewall arranges gas approach, fresh water (FW) import and organic amine charge door near spray district bottom position; The bottom is the slurries district in the tower chamber, and the slurries district is divided into cold-zone and hot-zone with dividing plate, and 60 ℃ of high temperature slurries behind the washing flue gas are admitted in the hot-zone, and 43 ℃ of low temperature slurries after the heat exchange are admitted in the cold-zone; Wherein the hot-zone is communicated with fully with the spray district, and the top, cold-zone is by the cover plate complete closed; In the position, hot-zone of tower body sidewall hot slurries loop exit is set, the cold-zone arranges cold slurries circulation import, and hot slurries loop exit is communicated with cold slurries circulation import by slurry circulating pump and heat exchanger successively; In the position, cold-zone of tower body sidewall cold slurries outlet is set, cold slurries outlet is communicated with the spray water pump, and the spray water pump is communicated with spray equipment again; The position, hot-zone of tower body sidewall also is provided with the bleeder valve for the discharging rich solution, and the position, cold-zone of tower body sidewall also is provided with the refluxing opening that refluxes for lean solution.
2. renewable organic amine circulation desulfurization purifying column as claimed in claim 1 is characterized in that, is made as conical bottom at the bottom of the tower of cold-zone and hot-zone respectively, is provided with evacuation port on the conical bottom.
3. the sulfur removal technology of a renewable organic amine circulation desulfurization purifying column as claimed in claim 1 is as follows:
The first step: purifying column at first adds fresh water (FW) and organic amine respectively after installing in proportion from the import of purifying column fresh water (FW) and organic amine charge door; Fresh water (FW) and organic amine become mixed liquor in the purifying column hot-zone, start slurry circulating pump and make mixed serum enter the storage of purifying column cold-zone, store a certain amount of back and start the spray water pump, make mixed serum begin spray;
Second step: connect flue gas, flue gas at first enters purifying column spray district, the mixed serum water counter current contacting of flue gas and spray, the heat in the flue gas and SO
2The mixed serum that is sprayed in the spray district absorbs, and the flue gas behind the cooling and purifying is discharged from purifying column top exhanst gas outlet;
The 3rd step: absorb SO
2After 60 ℃ mixed serum become and contain SO
2Rich solution, and fall to concentrating on the purifying column hot-zone, again through slurry circulating pump constantly extract out and pressurization after enter heat exchanger, be down to volatilization temperature below 43 ℃ through heat exchange, enter the purifying column cold-zone after the cooling and store; The rich solution that the purifying column cold-zone stores is the spray equipment in spray water pump forced feed purifying column again, thereby realizes the circulation of rich solution shower water, and rich solution repeats the SO in the flue gas in the absorption cleaning tower in circulation
2, SO in rich solution
2When reaching finite concentration, discharge from bleeder valve; The dust of Xi Shouing is regularly discharged at the bottom of tower in hot-zone meeting natural subsidence simultaneously;
The 4th step: the rich solution that bleeder valve is discharged enters the regeneration treatment process, SO in the rich solution in the regeneration treatment process
2Be recovered, become the lean solution that contains organic amine, the lean solution that contains organic amine is got back to the cold-zone of purifying column by refluxing opening, thereby makes organic amine obtain recycling utilization.
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| CN201310173036.5A CN103252161B (en) | 2013-05-11 | 2013-05-11 | Renewable organic amine circulation desulfurization purification tower and renewable organic amine circulation desulfurization technology |
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| CN104548908A (en) * | 2014-11-05 | 2015-04-29 | 朱忠良 | Amine liquid desulphurization method |
| CN104801155A (en) * | 2014-01-29 | 2015-07-29 | 株式会社东芝 | Heat-stable salt removing system, carbon dioxide recovering system and heat-stable salt removing method |
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| CN105561747A (en) * | 2014-11-10 | 2016-05-11 | 江苏庆峰国际环保工程有限公司 | Combined removal process for flue gas in coal-fired boiler |
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| CN115382378A (en) * | 2021-05-24 | 2022-11-25 | 国家电投集团远达环保工程有限公司 | Flue gas treatment device and desulphurization unit |
| CN116036803A (en) * | 2022-12-21 | 2023-05-02 | 国家能源集团新能源技术研究院有限公司 | Absorption tower for capturing carbon dioxide in flue gas |
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