CN113599971A - Device and process method for saving energy and reducing consumption in tail gas treatment - Google Patents
Device and process method for saving energy and reducing consumption in tail gas treatment Download PDFInfo
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- CN113599971A CN113599971A CN202110761230.XA CN202110761230A CN113599971A CN 113599971 A CN113599971 A CN 113599971A CN 202110761230 A CN202110761230 A CN 202110761230A CN 113599971 A CN113599971 A CN 113599971A
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000011282 treatment Methods 0.000 title claims abstract description 25
- 239000010865 sewage Substances 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000010521 absorption reaction Methods 0.000 claims abstract description 29
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 16
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 239000006227 byproduct Substances 0.000 claims abstract description 8
- 238000005265 energy consumption Methods 0.000 claims abstract description 8
- 230000002745 absorbent Effects 0.000 claims abstract description 7
- 239000002250 absorbent Substances 0.000 claims abstract description 7
- 238000004134 energy conservation Methods 0.000 claims abstract description 6
- 238000004064 recycling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 83
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 8
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 8
- 238000006477 desulfuration reaction Methods 0.000 description 7
- 230000023556 desulfurization Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—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
- B01D53/1418—Recovery of products
-
- 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
- B01D53/1456—Removing acid components
- B01D53/1468—Removing hydrogen sulfide
-
- 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
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- 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
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/063—Underpressure, vacuum
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- 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)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a device and a process method for energy conservation and consumption reduction in tail gas treatment, which belong to the technical field of energy conservation and environmental protection engineering and comprise the following steps: s1, solid-liquid separation; s2, resolving soluble gas in the sewage under a vacuum condition; s3, using the resolved sewage as an absorbent to treat SO in the tail gas under the normal pressure condition2、SO3And H2S, pre-absorbing; s4, recycling the sewage after absorbing the tail gas, completely resolving soluble gas in the sewage by a vacuum method, and taking the resolved sewage as an absorbent to absorb SO in the tail gas2、SO3And H2S is pre-absorbed to ensure that SO in the tail gas2、SO3And H2The S gas content is greatly reduced, the pre-absorbed flue gas enters a tail gas absorption tower which is used as security equipment, the flue gas is sprayed and washed and then is discharged after reaching the standard, the tail gas treatment operation cost is reduced, and simultaneously SO in the tail gas can be recovered2、SO3And H2S and the like, and the recovered gas is used for producing byproducts such as sulfuric acid, liquid sulfur dioxide and the like, so that the method has a good application prospect.
Description
Technical Field
The invention belongs to the technical field of energy-saving and environment-friendly engineering, and particularly relates to a device and a process method for tail gas treatment, energy conservation and consumption reduction.
Background
In recent years, topics about water pollution have been raised, and sewage treatment and discharge have also attracted attention to the severity of water pollution. For example: soluble and combustible gases often exist in sewage discharged by chemical enterprises, and the gases and liquid are easy to form explosive mixtures under certain environments; the domestic sewage can generate hydrogen sulfide gas through a pipeline, which is extremely toxic gas dissolved in water and has the odor of the eggs; sewage enters various workshops of a sewage treatment plant, and the workshops are filled with the gas, especially in pipelines, well bottoms and pool bottoms which are difficult to ventilate and are heavily populated with hydrogen sulfide; in the sludge digestion tank, methane, known as methane, can be generated; it is colorless and tasteless, insoluble in water, but flammable and explosive, and has great harm; various germs and parasitic ova also live in the sewage, and once the germs and the parasitic ova are accidentally contacted, the sewage can also bring harm to people.
Therefore, the sewage needs to be treated to be normally discharged, and the soluble SO in the sewage2、SO3And H2The treatment of the S gas is particularly important. The domestic tail gas treatment process which has realized industrialization mainly comprises three main types, the traditional process is calcium desulphurization, the more applied processes are sodium-alkali desulphurization and ammonia desulphurization, and the more advanced processes are organic amine desulphurization and hydrogen peroxide desulphurization. The method has high desulfurization efficiency and stable process, the desulfurized tail gas completely meets the environmental protection requirement and can be stably discharged up to the standard, but the desulfurization methods have the problems of high operation cost, difficult byproduct treatment, high desulfurizer regeneration energy consumption and the like.
The raw materials for calcium desulphurization in the traditional process are cheap and easy to obtain, but in the desulphurization process, because the calcium sulfite and calcium sulfate generated after sulfur dioxide is absorbed by a calcium-based desulfurizer have low solubility, scaling and blockage phenomena are easily formed in a desulphurization tower and a pipeline, the amount of gypsum slag generated after desulphurization is large, and the stockpiling and treatment are difficult; the sodium-alkali desulfurization and denitration efficiency is high, the amount of flue gas to be treated can be more or less, the technology is mature and reliable, but the tail imbibition contains high salt, the crystallization in the tower is easy to cause, the discharge amount of the salt-containing wastewater is large, the waste liquid discharged from the system can be discharged after being further treated, and the sodium-alkali desulfurization is limited by the price of chemical products, so the operation cost is high; although the organic amine desulfurization has advanced technology and can recycle the generated sulfur dioxide gas, the equipment investment cost is high, the regeneration energy consumption is large, and the operation cost is high.
Disclosure of Invention
Aiming at the problems, the invention provides a tail gas treatment energy-saving consumption-reducing device and a process method with low operation cost and simple and convenient process, which analyze and purify SO in dilute acid by a vacuum method2The gas technology is applied to the tail gas treatment process to save the use of the absorbent, thereby realizing the purpose of reducing the operation cost of tail gas treatment.
In order to achieve the purpose, the invention adopts the technical scheme that:
a process method for tail gas treatment energy conservation and consumption reduction comprises the following steps:
s1: solid-liquid separation: filtering sewage discharged from a production system through a solid-liquid separation system, collecting filtered clear liquid and conveying the clear liquid to a storage tank;
s2: and (3) resolving soluble gas in the sewage under the vacuum condition: pumping the clear liquid collected in the step S1 into an analytical tower for analysis, and controlling the internal pressure of the analytical tower as follows: heating the sewage to 50-70 ℃ by adopting steam at-90.0 to-50.0 KPa, deeply analyzing soluble gas in the sewage, recovering the analyzed gas and using the gas for byproduct production, and collecting and conveying the analyzed sewage into a storage tank;
s3: using the resolved sewage as an absorbent to absorb SO in the tail gas under the normal pressure condition2、SO3And H2S, pre-absorption: pumping the sewage collected in the step S2 into a pre-absorption tower for spraying, delivering discharged tail gas to the bottom of the pre-absorption tower, delivering the discharged tail gas to the bottom of the pre-absorption tower, in the pre-absorption tower, reversely contacting the analyzed sewage with the tail gas, and collecting SO in the tail gas2、SO3And H2S gas is completely absorbed, the absorbed tail gas enters a security spray tower, and is emptied after reaching the standard through alkali liquor spraying;
s4: and (3) recycling the sewage after tail gas absorption: and (4) exchanging heat between the absorption liquid after absorbing the tail gas in the step (S3) and the analyzed sewage, and then sending the absorption liquid into an S1 solid-liquid separation device for circulation.
The clear liquid filtered in the step S1 needs to be kept clear and transparent, and then sent to a storage tank.
In step S1, the sewage discharged from the production system is filtered by a solid-liquid separation system, and valuable metals in the filtered precipitated sludge are recovered and reused.
In the step S2, water vapor and SO are generated after deep analysis is performed on the soluble gas in the sewage2、SO3And H2S gas mixture, after the mixture passes through a condenser, water vapor in the mixture is cooled to form condensed water, and the condensed water is used for purification and supplementFilling water, SO after passing through condenser2、SO3And H2The S gas is recovered after being cooled by a cooling tower, and the collected SO is2、SO3And H2The S gas is sent to a sulfuric acid byproduct production system for producing sulfuric acid and liquid sulfur dioxide.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention completely resolves the soluble gas in the sewage by a vacuum method, and the resolved sewage resolves the SO in the tail gas2、SO3Pre-absorbing the gas to make SO in the tail gas2、SO3The gas content is greatly reduced, the pre-absorbed flue gas enters a tail gas absorption tower which is used as security equipment, the flue gas is sprayed and washed and then is discharged up to the standard, the tail gas treatment operation cost is reduced, and simultaneously SO in the tail gas can be recovered2The gases are used for producing byproducts such as sulfuric acid, liquid sulfur dioxide and the like, and have good application prospect;
2) the invention has the advantages of cleanness, environmental protection, high efficiency, low cost and simple and convenient operation, treats the tail gas in a waste recycling mode, can effectively solve the problems of large consumption of the absorbent, high operation cost and the like in the tail gas treatment process, and can meet the requirement of stable production of companies.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The present invention will now be described in detail with reference to the specific drawings and examples, wherein the present invention is illustrated by way of example and not by way of limitation.
Example 1
A process method for tail gas treatment energy conservation and consumption reduction comprises the following steps:
s1: solid-liquid separation: filtering sewage discharged from a production system through a solid-liquid separation system, sending the filtered clear liquid into a storage tank after the filtered clear liquid is clear and transparent, and simultaneously recovering and reusing valuable metals in the filtered precipitated sludge;
s2: and (3) resolving soluble gas in the sewage under the vacuum condition: pumping the clear liquid collected in the step S1 into an analytical tower for analysis, and controlling the internal pressure of the analytical tower as follows: heating the sewage to 50-70 ℃ by adopting steam at-90.0 to-50.0 KPa, deeply resolving soluble gas in the sewage to generate steam and SO after deep resolution2、SO3And H2S gas mixture, after the mixture passes through a condenser, water vapor in the mixture is cooled to form condensed water, the condensed water is used as purification make-up water, and SO after the mixture passes through the condenser2、SO3And H2The S gas is recovered after being cooled by a cooling tower, and the collected SO is2、SO3And H2The S gas is sent into a sulfuric acid byproduct production system for producing sulfuric acid and liquid sulfur dioxide, and the resolved sewage is collected and conveyed into a storage tank;
s3: using the resolved sewage as an absorbent to absorb SO in the tail gas under the normal pressure condition2、SO3And H2S, pre-absorption: pumping the sewage collected in the step S2 into a pre-absorption tower for spraying, delivering discharged tail gas to the bottom of the pre-absorption tower, delivering the discharged tail gas to the bottom of the pre-absorption tower, in the pre-absorption tower, reversely contacting the analyzed sewage with the tail gas, and collecting SO in the tail gas2、SO3And H2S gas is completely absorbed, the absorbed tail gas enters a security spray tower, and is emptied after reaching the standard through alkali liquor spraying;
s4: and (3) recycling the sewage after tail gas absorption: and (4) exchanging heat between the absorption liquid after absorbing the tail gas in the step (S3) and the analyzed sewage, and then sending the absorption liquid into an S1 solid-liquid separation device for circulation.
Comparative example
In the comparative example, the alkali consumption for tail gas absorption and the index of tail gas emission are shown in table 1 under the condition of the original process (sodium-alkali desulfurization).
TABLE 1 alkali consumption for tail gas absorption and tail gas emission index under the original process (sodium-alkali desulfurization)
Example 1 shows the alkali consumption for tail gas absorption and the index of tail gas emission under the process conditions of the invention in table 2:
table 2 alkali consumption in tail gas absorption and index of tail gas emission under the conditions of example 1
From the experimental results in tables 1 and 2, it can be seen that the "vacuum" method is used to analyze and purify SO in dilute acid2The gas technology is applied to the tail gas treatment process, can effectively realize tail gas treatment, has remarkable performances of high efficiency and low cost, enables the tail gas treatment to realize low-energy consumption and high-efficiency operation, and enables the tail gas to reach the national emission standard.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained in the present document by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention.
Claims (4)
1. A process method for tail gas treatment energy conservation and consumption reduction is characterized in that: the method comprises the following steps:
s1: solid-liquid separation: filtering sewage discharged from a production system through a solid-liquid separation system, collecting filtered clear liquid and conveying the clear liquid to a storage tank;
s2: and (3) resolving soluble gas in the sewage under the vacuum condition: pumping the clear liquid collected in the step S1 into an analytical tower for analysis, and controlling the internal pressure of the analytical tower as follows: heating the sewage to 50-70 ℃ by adopting steam at-90.0 to-50.0 KPa, deeply analyzing soluble gas in the sewage, recovering the analyzed gas and using the gas for byproduct production, and collecting and conveying the analyzed sewage into a storage tank;
s3: using the resolved sewage as an absorbent to absorb SO in the tail gas under the normal pressure condition2、SO3And H2S, pre-absorption: the sewage pump collected in the step S2Spraying in a pre-absorption tower, sending the discharged tail gas to the bottom of the pre-absorption tower, in the pre-absorption tower, reversely contacting the resolved sewage with the tail gas, and collecting SO in the tail gas2、SO3And H2S gas is completely absorbed, the absorbed tail gas enters a security spray tower, and is emptied after reaching the standard through alkali liquor spraying;
s4: and (3) recycling the sewage after tail gas absorption: and (4) exchanging heat between the absorption liquid after absorbing the tail gas in the step (S3) and the analyzed sewage, and then sending the absorption liquid into an S1 solid-liquid separation device for circulation.
2. The process method for saving energy and reducing consumption of tail gas treatment according to claim 1, characterized in that: the clear liquid filtered in the step S1 needs to be kept clear and transparent, and then sent to a storage tank.
3. The process method for saving energy and reducing consumption of tail gas treatment according to claim 1, characterized in that: in step S1, the sewage discharged from the production system is filtered by a solid-liquid separation system, and valuable metals in the filtered precipitated sludge are recovered and reused.
4. The process method for saving energy and reducing consumption of tail gas treatment according to claim 1, characterized in that: in the step S2, water vapor and SO are generated after deep analysis is performed on the soluble gas in the sewage2、SO3And H2S gas mixture, after the mixture passes through a condenser, water vapor in the mixture is cooled to form condensed water, the condensed water is used as purification make-up water, and SO after the mixture passes through the condenser2、SO3And H2The S gas is recovered after being cooled by a cooling tower, and the collected SO is2、SO3And H2The S gas is sent to a sulfuric acid byproduct production system for producing sulfuric acid and liquid sulfur dioxide.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE705562A (en) * | 1966-10-25 | 1968-03-01 | ||
| SU1723713A1 (en) * | 1989-07-03 | 1996-02-27 | Ленинградский Технологический Институт Им.Ленсовета | Aggregate for hydrogen sulfide extraction from sea water |
| CN201906485U (en) * | 2011-01-21 | 2011-07-27 | 淄博通达防腐设备有限公司 | Gas-liquid separation system |
| CN104587820A (en) * | 2015-01-08 | 2015-05-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Negative-pressure desulfurized solution resolving technology |
| CN108479311A (en) * | 2018-04-17 | 2018-09-04 | 安徽华铂再生资源科技有限公司 | A kind of method of cyclic absorption secondary lead smelting and ring collection sulfur dioxide in flue gas |
| CN108640385A (en) * | 2018-05-10 | 2018-10-12 | 四川沃兹凯兰科技有限公司 | The negative pressure air lift desulfurization of high sour water and sulfur-containing tail gas purifier and technique |
-
2021
- 2021-07-06 CN CN202110761230.XA patent/CN113599971A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE705562A (en) * | 1966-10-25 | 1968-03-01 | ||
| SU1723713A1 (en) * | 1989-07-03 | 1996-02-27 | Ленинградский Технологический Институт Им.Ленсовета | Aggregate for hydrogen sulfide extraction from sea water |
| CN201906485U (en) * | 2011-01-21 | 2011-07-27 | 淄博通达防腐设备有限公司 | Gas-liquid separation system |
| CN104587820A (en) * | 2015-01-08 | 2015-05-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Negative-pressure desulfurized solution resolving technology |
| CN108479311A (en) * | 2018-04-17 | 2018-09-04 | 安徽华铂再生资源科技有限公司 | A kind of method of cyclic absorption secondary lead smelting and ring collection sulfur dioxide in flue gas |
| CN108640385A (en) * | 2018-05-10 | 2018-10-12 | 四川沃兹凯兰科技有限公司 | The negative pressure air lift desulfurization of high sour water and sulfur-containing tail gas purifier and technique |
Non-Patent Citations (1)
| Title |
|---|
| 中国冶金百科全书总编辑委员会《炼焦化工》卷编辑委员会主编: "《中国冶金百科全书 炼焦化工》", 冶金工业出版社, pages: 228 * |
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