CN101642629A - Method for controlling amine solvent regeneration system - Google Patents
Method for controlling amine solvent regeneration system Download PDFInfo
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- CN101642629A CN101642629A CN200810138874A CN200810138874A CN101642629A CN 101642629 A CN101642629 A CN 101642629A CN 200810138874 A CN200810138874 A CN 200810138874A CN 200810138874 A CN200810138874 A CN 200810138874A CN 101642629 A CN101642629 A CN 101642629A
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- regeneration system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a method for controlling an amine solvent regeneration system, belongs to the technical field of amine solvent recovery, and comprises an amine recovery tower. The method is characterized in that a heat supply regulating valve of a tower bottom reboiler is related to system pressure; and a distilled line regulating valve of a tower top product is related to the gas-phase temperature of the tower top. The method can meet the requirement on purification degree of an amine solvent product on the tower bottom only by presetting a system pressure value and a tower top gas-phase temperature vale; and the control system can trace variations of feeding flow rate, feeding quality and feeding temperature to realize automatic regulation and obtain perfect tower bottom products.
Description
Technical field
The invention belongs to amine solvent recovery technology field, particularly a kind of control method of amine solvent regeneration system.
Background technology
Having absorbed the normally used hot regeneration technology of amine solvent of sour gas, is to return the heating load that the tower variation of temperature is regulated reboiler according to tower bottom reboiler; Distillate control valve control system pressure on the line with cat head.Because the bubble point of the approximate water of liquid phase state at the bottom of the hot regenerator of amine solvent, liquidus temperature was close at the bottom of reboiler returned tower fluid temperature (F.T.) and tower, realized that according to variations in temperature the automatic adjusting of reboiler heating load is very difficult; When amine solvent feed properties and temperature changed, the reboiler heating load can't realize the auto-associating with institute's calorific requirement.It is to open and close the release products sour gas according to the default system pressure of control valve that cat head distillates line, do not realize auto-associating with the purification amine solvent product quality at the bottom of the tower yet, when the heating load deficiency, when system pressure is lower than the discharge pressure of setting, can cause sour gas degree of purification of amine solvent product and at the bottom of influencing tower in intrasystem accumulation.
Catalysis drying gas desulfurization and solvent regeneration system transformation (" contemporary chemical industry " in October, 2007 Zhao Yu roc, parasol pine, Jiang Huan) disclose a kind of equipment flowsheet of solvent regeneration system, and the disclosed content of the document is quoted at this as prior art.
Summary of the invention
Technical problem to be solved by this invention: the invention provides a kind of new system control theory and control method, when amine solvent feed rate, quality and temperature change, control system can realize the automatic control of overall process, the amine solvent product quality after guaranteeing to purify.
Technical scheme of the present invention:
A kind of control method of amine solvent regeneration system comprises the amine recovery tower, it is characterized in that, the heating load control valve of tower bottom reboiler is related with system pressure; Overhead product distillates line control valve and cat head gas phase temperature association.
The heating load control valve of tower bottom reboiler is related with system pressure; Overhead product distillates line control valve and cat head gas phase temperature association.Because contain a large amount of steam in the cat head gas phase, under certain pressure condition, gas phase temperature is high more, shows that steam partial pressure is high more, and the sour gas dividing potential drop is low more, and the amine solvent product degree of purification at the bottom of the tower is high more; Otherwise under certain pressure condition, the cat head gas phase temperature is low more, shows that steam partial pressure is low more, and sour gas accumulates the back dividing potential drop in system high more, and the amine solvent product degree of purification at the bottom of the tower is low more.
Compared with prior art, the present invention has following beneficial effect:
In order to obtain amine solvent purified product at the bottom of the stable tower, prior art depends on technical level of operators, according to feed rate, feeding temperature, product analysis data, the heating load of regulating tower bottom reboiler by rule of thumb, whole system do not realize control automatically.New method provided by the present invention, as long as default system pressure value and cat head gas phase temperature value can satisfy the requirement of amine solvent product degree of purification at the bottom of the tower, the variation that control system can be followed the tracks of feed rate, charging quality, feeding temperature realizes regulating automatically, obtains desirable bottom product.The present invention compared with prior art can realize that the system under the optimum operating condition controls automatically under the prerequisite that does not increase investment, stop the interference of human factor fully, energy consumption and bottom product purification ratio the best.
The specific embodiment
Embodiment
A kind of control method of amine solvent regeneration system comprises the amine recovery tower, it is characterized in that, the heating load control valve of tower bottom reboiler is related with system pressure; Overhead product distillates line control valve and cat head gas phase temperature association.
New method provided by the present invention, as long as default system pressure value and cat head gas phase temperature value can satisfy the requirement of amine solvent product degree of purification at the bottom of the tower, the variation that control system can be followed the tracks of feed rate, charging quality, feeding temperature realizes regulating automatically, obtains desirable bottom product.The present invention compared with prior art can realize that the system under the optimum operating condition controls automatically under the prerequisite that does not increase investment, stop the interference of human factor fully, energy consumption and bottom product purification ratio the best.
Claims (1)
1. the control method of an amine solvent regeneration system comprises the amine recovery tower, it is characterized in that, the heating load control valve of tower bottom reboiler is related with system pressure; Overhead product distillates line control valve and cat head gas phase temperature association.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138874A CN101642629A (en) | 2008-08-08 | 2008-08-08 | Method for controlling amine solvent regeneration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138874A CN101642629A (en) | 2008-08-08 | 2008-08-08 | Method for controlling amine solvent regeneration system |
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| CN101642629A true CN101642629A (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810138874A Pending CN101642629A (en) | 2008-08-08 | 2008-08-08 | Method for controlling amine solvent regeneration system |
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| CN (1) | CN101642629A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9370745B2 (en) | 2013-04-24 | 2016-06-21 | Jiangsu New Century Jiangnan Environmental Protection Co., Ltd | Flue gas-treating method and apparatus for treating acidic tail gas by using ammonia process |
| US10016721B1 (en) | 2017-05-25 | 2018-07-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desufurization process and apparatus |
| US10092877B1 (en) | 2017-05-25 | 2018-10-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10112145B1 (en) | 2017-09-07 | 2018-10-30 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US20190001267A1 (en) | 2017-07-03 | 2019-01-03 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US20190046925A1 (en) * | 2017-03-15 | 2019-02-14 | Jiangnan Environmental Protection Group, Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10953365B2 (en) | 2018-07-20 | 2021-03-23 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11027234B2 (en) | 2018-04-13 | 2021-06-08 | Jiangnan Environmental Protection Group Inc. | Oxidization of ammonia desulfurization solution |
| US11224838B2 (en) | 2019-12-26 | 2022-01-18 | Jiangnan Environmental Protection Group Inc. | Controlling aerosol production during absorption in ammonia-based desulfurization |
-
2008
- 2008-08-08 CN CN200810138874A patent/CN101642629A/en active Pending
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9370745B2 (en) | 2013-04-24 | 2016-06-21 | Jiangsu New Century Jiangnan Environmental Protection Co., Ltd | Flue gas-treating method and apparatus for treating acidic tail gas by using ammonia process |
| US10413864B2 (en) | 2017-03-15 | 2019-09-17 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10207220B2 (en) * | 2017-03-15 | 2019-02-19 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10675584B2 (en) | 2017-03-15 | 2020-06-09 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US20190046925A1 (en) * | 2017-03-15 | 2019-02-14 | Jiangnan Environmental Protection Group, Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10406477B2 (en) * | 2017-03-15 | 2019-09-10 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10561982B2 (en) | 2017-05-25 | 2020-02-18 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10471383B2 (en) | 2017-05-25 | 2019-11-12 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10406478B2 (en) | 2017-05-25 | 2019-09-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10213739B2 (en) | 2017-05-25 | 2019-02-26 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10343110B2 (en) | 2017-05-25 | 2019-07-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10016721B1 (en) | 2017-05-25 | 2018-07-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desufurization process and apparatus |
| US10413865B2 (en) | 2017-05-25 | 2019-09-17 | Jiangnan Enviromental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10399033B2 (en) | 2017-05-25 | 2019-09-03 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10092877B1 (en) | 2017-05-25 | 2018-10-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10583386B2 (en) | 2017-06-14 | 2020-03-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10159929B1 (en) | 2017-06-14 | 2018-12-25 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10589212B2 (en) | 2017-06-14 | 2020-03-17 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10561984B2 (en) | 2017-07-03 | 2020-02-18 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10421040B2 (en) | 2017-07-03 | 2019-09-24 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US20190001267A1 (en) | 2017-07-03 | 2019-01-03 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10556205B2 (en) | 2017-07-03 | 2020-02-11 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10427097B2 (en) | 2017-07-03 | 2019-10-01 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10618001B2 (en) | 2017-07-03 | 2020-04-14 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10369517B2 (en) | 2017-09-07 | 2019-08-06 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10449488B2 (en) | 2017-09-07 | 2019-10-22 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10112145B1 (en) | 2017-09-07 | 2018-10-30 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10357741B2 (en) | 2017-09-07 | 2019-07-23 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US11027234B2 (en) | 2018-04-13 | 2021-06-08 | Jiangnan Environmental Protection Group Inc. | Oxidization of ammonia desulfurization solution |
| US10953365B2 (en) | 2018-07-20 | 2021-03-23 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11529584B2 (en) | 2018-07-20 | 2022-12-20 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11224838B2 (en) | 2019-12-26 | 2022-01-18 | Jiangnan Environmental Protection Group Inc. | Controlling aerosol production during absorption in ammonia-based desulfurization |
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Application publication date: 20100210 |