CN102210963A - Ethanolamine rich liquor afterheat decomposition system - Google Patents
Ethanolamine rich liquor afterheat decomposition system Download PDFInfo
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- CN102210963A CN102210963A CN2011101593602A CN201110159360A CN102210963A CN 102210963 A CN102210963 A CN 102210963A CN 2011101593602 A CN2011101593602 A CN 2011101593602A CN 201110159360 A CN201110159360 A CN 201110159360A CN 102210963 A CN102210963 A CN 102210963A
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- rich
- rich solution
- lean
- solution
- heater
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an ethanolamine rich liquor afterheat decomposition system, and belongs to the field of energy conservation and environmental protection. The system comprises a washing tower, an absorption tower, a draft fan, a rich liquor pump, a lean and rich liquor heat exchanger, a stripper, a lean liquor pump, a lean liquor cooler, a rich liquor heater and a blast stove. Rich liquor is pressurized by the rich liquor pump, introduced into the lean and rich liquor heat exchanger, and heated by high temperature lean liquor, and enters the rich liquor heater. In the rich liquor heater, the rich liquor is heated by afterheat of smoke discharged by the blast stove to reach the rich liquor decomposition temperature, enters the stripper, and can be decomposed into carbon dioxide to become lean liquor without being reheated by the stripper, and the lean liquor is delivered to the absorption tower by the lean liquor pump again to be recycled.
Description
Technical field:
The title of patent of the present invention is a monoethanolamine rich solution waste heat resolution system, belongs to the energy-conserving and environment-protective field.It comprises scrubbing tower, air exhauster, absorption tower, rich solution pump, rich or poor liquid heat exchanger, Analytic Tower, lean pump, lean solution cooler, rich solution heater and hot-blast stove.Rich solution through be sent to after the rich solution pump pressurization rich or poor liquid heat exchanger by the heating of the lean solution of high temperature after, enter the rich solution heater.In the rich solution heater, rich solution is heated to the rich solution resolution temperature by the smoke discharging residual heat of hot-blast stove once more, enters then in the Analytic Tower, need not heat by Analytic Tower again, and rich solution just can split the carbon dioxide off and become lean solution, and it is recycling to be sent to the absorption tower by lean pump again.
Background technology:
At present, the carbon dioxide method that removes or reclaim of Application and Development has tens of kinds.The primary amine that Girbotal process (MEA) uses is a kind of organic alkali, to sour gas (H
2S and CO
2) have that infiltration rate is fast, absorbability is strong, residual CO
2Less, advantage such as reduced investment, but also have the high drawback of regeneration energy consumption.The degraded of hydramine is a suitable complicated problems in addition, and in the actual production device degraded of hydramine certainly will will be subjected to influence such as factors such as used hydramine, gas composition and operating parameter conditions, and the effect of these factors neither isolate, as at CO
2Under the situation about existing, the speed of the oxidized degraded of hydramine increases greatly, and if the temperature of heat medium is too high, will inevitably quicken its degradation reaction.Therefore the degraded and the catabolite in the cancellation element that reduce hydramine are very important, common for this reason CO
2The saturated vapor of resolving institute's energy requirement and be by boiler dedicated generation provides, this with regard to make the equipment complexity, energy consumption is big and cost is too high.
Summary of the invention:
In order to remedy above-mentioned deficiency of the prior art, patent of the present invention will provide a kind of smoke evacuation tail gas heating rich solution that utilizes coal-fired hot-blast stove for the degraded of hydramine, for it provides the monoethanolamine rich solution waste heat resolution system of resolving energy.
The object of the present invention is achieved like this: it comprises scrubbing tower, air exhauster, absorption tower, rich solution pump, rich or poor liquid heat exchanger, Analytic Tower, lean pump, lean solution cooler, rich solution heater and hot-blast stove.Rich solution through be sent to after the rich solution pump pressurization rich or poor liquid heat exchanger by the heating of the lean solution of high temperature after, enter the rich solution heater.In the rich solution heater, rich solution is heated to temperature neither overheated and that rich solution is resolved by the smoke discharging residual heat of hot-blast stove once more, enters then in the Analytic Tower, need not heat by Analytic Tower again, rich solution just can split the carbon dioxide off and become lean solution, and it is recycling to be sent to the absorption tower by lean pump again.Compared with prior art, the present invention has following advantage:
1. energy-conserving and environment-protective;
2. simple in structure, easy for installation and with low cost, only utilize smoke discharging residual heat that rich solution is resolved.
Description of drawings:
Fig. 1. be monoethanolamine rich solution waste heat resolution system figure.
Wherein: the 1--scrubbing tower; The 2--air exhauster; The 3--absorption tower; The 4--device for deoxidizing; 5--rich solution pump; The rich or poor liquid heat exchanger of 6--; The 7--Analytic Tower; The 8--lean pump; 9--lean solution cooler; 10--rich solution heater; The 11--hot-blast stove.
Case study on implementation:
Fig. 1 also is the monoethanolamine rich solution waste heat resolution system of 700kg/h carbon dioxide, comprises scrubbing tower (1), air exhauster (2), absorption tower (3), device for deoxidizing (4), rich solution pump (5), rich or poor liquid heat exchanger (6), Analytic Tower (7), lean pump (8), lean solution cooler (9), rich solution heater (10) and hot-blast stove (11).The fume side outlet of hot-blast stove (11) and the fume side inlet of rich solution heater (10) link fixed, and the fume side outlet of rich solution heater (10) links fixed with the gas approach side of scrubbing tower (1); The arrival end UNICOM of the smoke outlet of scrubbing tower (1) and air exhauster (2) is fixed, and the gas approach end of the port of export of air exhauster (2) and absorption tower (3) links fixed, and the smoke outlet of absorption tower (3) directly is discharged into chimney; The rich solution of Analytic Tower (7) infeed mouthful rich solution with rich solution heater (10) export link fixed, the CO of Analytic Tower (7)
2Outlet directly is sent to CO
2Container, the lean solution outlet of Analytic Tower (7) bottom and the import of lean pump (8) link fixed; The lean solution entrance point of the outlet of lean pump (8) and rich or poor liquid heat exchanger (6) links fixed, the entrance point of the lean solution port of export of rich or poor liquid heat exchanger (6) and lean solution cooler (9) links fixed, and the lean solution entrance point of the port of export of lean solution cooler (9) and absorption tower (3) links fixed; The rich solution supply port of bottom, absorption tower (3) and the inlet of device for deoxidizing (4) link fixed, and the arrival end of the outlet of device for deoxidizing (4) and rich solution pump (5) links fixed; The rich solution entrance point of the port of export of rich solution pump (5) and rich or poor liquid heat exchanger (6) links fixed, and the rich solution arrival end of the rich solution port of export of rich or poor liquid heat exchanger (6) and rich solution heater (10) links fixed.
The shell-and-tube exchanger that the heat-transfer pipe of rich solution heater (10) is made up of the stainless steel coiled pipe of ф 25x2.5, rich solution flows through in coiled pipe, the horizontal coiled pipe outside of skimming over of hot-blast stove fume.After rich solution is sent to after rich solution pump (5) pressurization in the rich or poor liquid heat exchanger (6) and is heated to 65 ℃ by the lean solution of high temperature, enter rich solution heater (10) again and be heated to about 110 ℃ of rich solution resolution temperature by the smoke discharging residual heat of hot-blast stove once more, enter then in the Analytic Tower (7), the branch that need not resupply rich solution is analgesic, 110 ℃ rich solution just can per hour decomposite the 700kg carbon dioxide and become lean solution in Analytic Tower (7), be sent in the absorption tower (3) recycling by lean pump (8) again.
Claims (2)
1. a monoethanolamine rich solution waste heat resolution system comprises scrubbing tower 1, air exhauster 2, absorption tower 3, device for deoxidizing 4, rich solution pump 5, rich or poor liquid heat exchanger 6, Analytic Tower 7, lean pump 8, lean solution cooler 9, rich solution heater 10 and hot-blast stove 11; It is fixed that the fume side outlet that it is characterized in that hot-blast stove 11 and the fume side inlet of rich solution heater 10 link, and the fume side outlet of rich solution heater 10 links fixed with the gas approach side of scrubbing tower 1; The arrival end UNICOM of the smoke outlet of scrubbing tower 1 and air exhauster 2 is fixed, and the gas approach end on the port of export of air exhauster 2 and absorption tower 3 links fixed, and the smoke outlet on absorption tower 3 directly is discharged into chimney; The rich solution of Analytic Tower 7 infeed mouthful rich solution with rich solution heater 10 export link fixed, the CO of Analytic Tower 7
2Outlet directly is sent to CO
2Container, the lean solution outlet of Analytic Tower 7 bottoms and the import of lean pump 8 link fixed; The lean solution entrance point of the outlet of lean pump 8 and rich or poor liquid heat exchanger 6 links fixed, the lean solution port of export of rich or poor liquid heat exchanger 6 and the entrance point of lean solution cooler 9 link fixed, and the lean solution entrance point on the port of export of lean solution cooler 9 and absorption tower 3 links fixed; The rich solution supply port of 3 bottoms, absorption tower and the inlet of device for deoxidizing 4 link fixed, and the arrival end of the outlet of device for deoxidizing 4 and rich solution pump 5 links fixed; The rich solution entrance point of the port of export of rich solution pump 5 and rich or poor liquid heat exchanger 6 links fixed, the rich solution port of export of rich or poor liquid heat exchanger 6 and the rich solution arrival end of rich solution heater 10 link fixed, and the rich solution port of export of rich solution heater 10 and the rich solution of Analytic Tower 7 inlet link fixed.
2. monoethanolamine rich solution waste heat resolution system as claimed in claim 1 is characterized in that, the heat-transfer pipe of rich solution heater 10 is metal tubes of energy pressure-bearing, is the rich liquid stream mistake in the heat-transfer pipe, the horizontal heat-transfer pipe outside of skimming over rich solution heater 10 of hot-blast stove fume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101593602A CN102210963A (en) | 2011-06-15 | 2011-06-15 | Ethanolamine rich liquor afterheat decomposition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101593602A CN102210963A (en) | 2011-06-15 | 2011-06-15 | Ethanolamine rich liquor afterheat decomposition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102210963A true CN102210963A (en) | 2011-10-12 |
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ID=44742639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101593602A Pending CN102210963A (en) | 2011-06-15 | 2011-06-15 | Ethanolamine rich liquor afterheat decomposition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102210963A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2587204A1 (en) * | 2011-10-31 | 2013-05-01 | Paul Wurth Refractory & Engineering GmbH | Blast furnace top gas treatment |
| CN103143248A (en) * | 2013-02-08 | 2013-06-12 | 珠海共同机械设备有限公司 | System for absorbing and desorbing low-content CO2 in industrial exhaust gas |
-
2011
- 2011-06-15 CN CN2011101593602A patent/CN102210963A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2587204A1 (en) * | 2011-10-31 | 2013-05-01 | Paul Wurth Refractory & Engineering GmbH | Blast furnace top gas treatment |
| CN103143248A (en) * | 2013-02-08 | 2013-06-12 | 珠海共同机械设备有限公司 | System for absorbing and desorbing low-content CO2 in industrial exhaust gas |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111012 |