CN112892159A - Method for increasing regeneration speed of desulfurization solution of regeneration tower - Google Patents
Method for increasing regeneration speed of desulfurization solution of regeneration tower Download PDFInfo
- Publication number
- CN112892159A CN112892159A CN202110102999.0A CN202110102999A CN112892159A CN 112892159 A CN112892159 A CN 112892159A CN 202110102999 A CN202110102999 A CN 202110102999A CN 112892159 A CN112892159 A CN 112892159A
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- Prior art keywords
- regeneration
- regeneration tower
- reduced
- tower
- speed
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Links
- 230000008929 regeneration Effects 0.000 title claims abstract description 41
- 238000011069 regeneration method Methods 0.000 title claims abstract description 41
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 21
- 230000023556 desulfurization Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000009835 boiling Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000003009 desulfurizing effect Effects 0.000 abstract description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000009466 transformation Effects 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
- B01D53/1425—Regeneration of liquid absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/38—Steam distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
-
- 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
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention discloses a method for improving the regeneration speed of desulfurization liquid of a regeneration tower, wherein two vacuum pumps are additionally arranged in a system at the rear part of the regeneration tower, one vacuum pump is used for transporting and the other vacuum pump is used for starting one of the vacuum pumps when the system runs, and the surface air pressure of the desulfurization liquid of the regeneration tower is reduced from 50KPa to-60 KPa so as to reduce the boiling point of the desulfurization liquid. The invention aims to provide a method for improving the regeneration speed of a desulfurizing liquid of a regeneration tower, which is simple, convenient to use, low in investment and high in efficiency.
Description
Technical Field
The invention relates to a method for improving regeneration speed of desulfurization liquid in a regeneration tower.
Background
The flue gas discharged by the coal powder boiler of the steel-clad power supply main plant is subjected to a flue gas wet treatment experiment, a desulfurization liquid is used for adsorbing sulfur dioxide in the flue gas, then the flue gas enters a regeneration tower for steam stripping of sulfur dioxide, and then the desulfurization liquid enters a desulfurization tower for adsorption of sulfur dioxide. In the experimental process, as the height of the desulfurizing liquid regeneration tower body is 38 meters, the diameter of the tower body is 3.6 meters at the bottom, and the diameter of the tower body is 4.5 meters at the top, the desulfurizing liquid is difficult to heat, the heating temperature is 120 ℃, the heating time is 12-16 hours during starting, the regeneration is difficult, and the debugging progress of the whole system is seriously influenced.
Disclosure of Invention
The invention aims to provide a method for improving the regeneration speed of a desulfurizing liquid of a regeneration tower, which is simple, convenient to use, low in investment and high in efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a method for improving the regeneration speed of desulfurization liquid of a regeneration tower, which is characterized in that two vacuum pumps are additionally arranged in a system at the rear part of the regeneration tower, one vacuum pump is used for transporting one device, one vacuum pump is started when the system runs, and the surface air pressure of the desulfurization liquid of the regeneration tower is reduced from 50KPa to-60 KPa so as to reduce the boiling point of the desulfurization liquid.
Further, the steam amount is reduced from 12t/h to 8 t/h.
Further, the heating starting time is reduced to be within 8 hours from 12 to 16 hours.
Compared with the prior art, the invention has the beneficial technical effects that:
1. the invention has simple structure and low investment, and two vacuum pumps are additionally arranged behind the original closed regeneration system.
2. After the transformation is completed, only one pump is operated by the two pumps. The other can be serviced for standby.
3. After the improvement is completed, the surface air pressure of the desulfurization liquid in the regeneration tower is reduced, so that the boiling point of sulfur dioxide regeneration is reduced, the steam consumption and the starting heating time are reduced, the regeneration efficiency is improved, and the economic benefit is improved.
The steam consumption can be reduced by 24.4 ten thousand yuan per month. The boiler can reduce the steam consumption by 146 ten thousand yuan when operating in the heating season (6 months).
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic diagram of a structure for improving the regeneration speed of the desulfurization solution in the regeneration tower.
Detailed Description
A method for improving the regeneration speed of a desulfurizing liquid of a regeneration tower is characterized in that two vacuum pumps are additionally arranged in a system at the rear part of the regeneration tower, one vacuum pump is used for transporting and one device is used, the vacuum pump is started when the system runs, the surface air pressure of the desulfurizing liquid of the regeneration tower is reduced to-60 KPa from 50KPa, the boiling point of the desulfurizing liquid is reduced to about 95 ℃ from about 120 ℃, the steam quantity is reduced to 8t/h from 12t/h, and the heating time is reduced to within 8 hours from 12-16 hours when the system is started, so that the problem of difficulty in stripping the desulfurizing liquid of the conventional desulfurizing tower is solved.
The invention adds two vacuum pumps in the rear system of the regeneration tower, one vacuum pump is used for transporting and the other vacuum pump is used for starting the system when the system runs, and the surface air pressure of the desulfurization liquid of the regeneration tower is reduced from 50KPa to-60 KPa, so that the boiling point of the desulfurization liquid is reduced from about 120 ℃ to about 95 ℃, thereby not only reducing the heating time, but also reducing the steam usage. The steam consumption can be reduced by 24.4 ten thousand yuan per month. The boiler can reduce the steam consumption by 146 ten thousand yuan when operating in the heating season (6 months).
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (3)
1. A method for improving the regeneration speed of desulfurization liquid of a regeneration tower is characterized in that two vacuum pumps are additionally arranged in a system at the rear part of the regeneration tower, one vacuum pump is used for transporting and the other vacuum pump is used for starting the system when the system runs, and the surface air pressure of the desulfurization liquid of the regeneration tower is reduced from 50KPa to-60 KPa so as to reduce the boiling point of the desulfurization liquid.
2. The method for increasing the regeneration speed of the desulfurization solution in the regeneration tower of claim 1, wherein the steam amount is reduced from 12t/h to 8 t/h.
3. The method for increasing the regeneration speed of the desulfurization solution in the regeneration tower according to claim 1, wherein the heating time is started to be reduced from 12 to 16 hours to less than 8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110102999.0A CN112892159A (en) | 2021-01-26 | 2021-01-26 | Method for increasing regeneration speed of desulfurization solution of regeneration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110102999.0A CN112892159A (en) | 2021-01-26 | 2021-01-26 | Method for increasing regeneration speed of desulfurization solution of regeneration tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112892159A true CN112892159A (en) | 2021-06-04 |
Family
ID=76119941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110102999.0A Pending CN112892159A (en) | 2021-01-26 | 2021-01-26 | Method for increasing regeneration speed of desulfurization solution of regeneration tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112892159A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441315A (en) * | 2010-10-12 | 2012-05-09 | 中国石油化工股份有限公司 | Method for regenerating oil gas recovery absorption solution |
| FR3013710A1 (en) * | 2013-11-22 | 2015-05-29 | Prosernat | FLEXIBLE PROCESS FOR THE TREATMENT OF SOLVENT, SUCH AS MONOETHYLENE GLYCOL, FOR THE EXTRACTION OF NATURAL GAS |
| CN208493731U (en) * | 2018-01-12 | 2019-02-15 | 杭州中环化工设备有限公司 | Organic amine negative-pressure cyclic desulphurization system |
-
2021
- 2021-01-26 CN CN202110102999.0A patent/CN112892159A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441315A (en) * | 2010-10-12 | 2012-05-09 | 中国石油化工股份有限公司 | Method for regenerating oil gas recovery absorption solution |
| FR3013710A1 (en) * | 2013-11-22 | 2015-05-29 | Prosernat | FLEXIBLE PROCESS FOR THE TREATMENT OF SOLVENT, SUCH AS MONOETHYLENE GLYCOL, FOR THE EXTRACTION OF NATURAL GAS |
| CN208493731U (en) * | 2018-01-12 | 2019-02-15 | 杭州中环化工设备有限公司 | Organic amine negative-pressure cyclic desulphurization system |
Non-Patent Citations (1)
| Title |
|---|
| （苏）艾德林，И.Я.: "《造纸机与整饰机械》", 31 August 1965, 轻工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210604 |