CN205850531U - A kind of double-tower type MEDA processes landfill gas system - Google Patents

A kind of double-tower type MEDA processes landfill gas system Download PDF

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Publication number
CN205850531U
CN205850531U CN201620764421.6U CN201620764421U CN205850531U CN 205850531 U CN205850531 U CN 205850531U CN 201620764421 U CN201620764421 U CN 201620764421U CN 205850531 U CN205850531 U CN 205850531U
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China
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outlet
lean solution
gas
heat exchanger
pump
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CN201620764421.6U
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Chinese (zh)
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赵丽红
周爱鹏
孙洪军
曹宾
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Liaoning University of Technology
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Liaoning University of Technology
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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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

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  • Gas Separation By Absorption (AREA)

Abstract

A kind of double-tower type MEDA processes landfill gas system and belongs to environmental project protection and gas purification processes technical field, particularly relates to a kind of double-tower type MEDA and processes landfill gas system.This utility model provides a kind of can effectively process the CO in landfill gas2And H2The double-tower type MEDA of the harm therein gas such as S processes landfill gas system.This utility model includes that raw material gas tank, unstripped gas booster pump, absorption tower, bushing type microreactor, activator piperazine entrance, gas-liquid separator, hydraulic turbine, circulating pump, flash vessel, poor rich liquid heat exchanger, semi lean solution heat exchanger, regenerator, reboiler, cooling water tank, heat pump, separator, sour water reflux pump, acid gas collection box, semi lean solution aftercooler, lean solution aftercooler, MDEA circulating pump, sink reflux pump, water washing groove, place are regulated the flow of vital energy collecting box, and its structural feature bushing type microreactor is arranged in absorption tower in the cavity of side.

Description

A kind of double-tower type MEDA processes landfill gas system
Technical field
This utility model belongs to environmental project protection and gas purification processes technical field, particularly relates to a kind of double-tower type MEDA processes landfill gas system.
Background technology
Solvent absorption trapping CO2And H2S is the method being most widely used at present, with methyl diethanolamine (MDEA) is Absorbing liquid, adds activator piperazine in MDEA and can be effectively improved its absorbability.MEDA compares other regeneration of absorption solution Easily, energy consumption low, at the bottom of MEDA vapour pressure, absorb acid gas solvent loss few, solvent is to CO2And H2S load capacity is big, degree of purification Height, is the acid gas removal agent of the high-efficiency low energy consumption that a kind of chemical method purifies.But for single absorption CO2Or H2S, The removal efficiency of MDEA can be the highest, especially to CO2More than 95% can be reached.
So problem is just at MDEA and H2S、CO2Response difference there are differences, cause MDEA solution absorb H2S and CO2's Speed is different, so that MDEA can be containing H2S and CO2System in selective absorbing H2S.Therefore, make great efforts to improve to accelerate CO2Speed be so that MDEA solution absorbs CO simultaneously2And H2S is crucial.
Summary of the invention
This utility model is aiming at the problems referred to above, it is provided that a kind of can effectively process the CO in landfill gas2And H2S etc. The double-tower type MEDA of harm gas therein processes landfill gas system.
For achieving the above object, this utility model adopts the following technical scheme that, this utility model includes raw material gas tank, raw material Gas booster pump, absorption tower, bushing type microreactor, activator piperazine entrance, gas-liquid separator, hydraulic turbine, circulating pump, flash distillation Device, poor rich liquid heat exchanger, semi lean solution heat exchanger, regenerator, reboiler, cooling water tank, heat pump, separator, sour water reflux pump, acid Regulate the flow of vital energy collection in gas collection box, semi lean solution aftercooler, lean solution aftercooler, MDEA circulating pump, sink reflux pump, water washing groove, place Case, its structural feature bushing type microreactor is arranged in absorption tower in the cavity of side, activator piperazine entrance and bushing type The connection of microreactor outboard chambers is arranged on cavity bottom, and the lower end import of bushing type microreactor passes through unstripped gas booster pump with former Material gas tank is connected.
Cavity upper end above bushing type microreactor upper end outlet is provided with in vertical exit, vertical exit and absorption tower The gas-liquid separator entrance of upper end is connected, and gas-liquid separator upper end gas outlet is connected with water washing groove, the gas of water washing groove Exporting collecting box of regulating the flow of vital energy with place to be connected, the liquid outlet of water washing groove is entered by the middle part of sink reflux pump with vertical regenerator Mouth is connected；Gas-liquid separator is provided with downward liquid outlet away from cavity side lower end, in liquid outlet absorption tower outer with cavity Space connects, and lower end, absorption tower is provided with the horizontal rich solution outlet connected with space in absorption tower outside cavity, rich solution outlet and liquid The import of power turbine is connected, the outlet of hydraulic turbine by flash vessel respectively with poor rich liquid heat exchanger, the of semi lean solution heat exchanger One heat exchanger channels entrance is connected, poor rich liquid heat exchanger, the first heat exchanger channels outlet and rich solution of reboiler of semi lean solution heat exchanger Import is connected.
The drive output of hydraulic turbine is connected with the driving input of circulating pump, and circulation delivery side of pump declines with sleeve pipe The connection of reactor outboard chambers is arranged on the semi lean solution import of cavity bottom and is connected, and semi lean solution aftercooler is passed through in the import of circulating pump It is connected, in the second heat exchanger channels entrance of semi lean solution heat exchanger and regenerator with the second heat exchanger channels outlet of semi lean solution heat exchanger Portion's semi lean solution outlet is connected.
Second heat exchanger channels entrance of poor rich liquid heat exchanger is connected with the outlet of regenerator lower end lean solution, poor rich liquid heat exchanger Second heat exchanger channels outlet passes sequentially through lean solution aftercooler, MDEA circulating pump and sets with connecting with bushing type microreactor outboard chambers Put the lean solution import on cavity top to be connected.
The gas outlet of reboiler is connected with the gas access of regenerator bottom, the semi lean solution outlet of reboiler and regenerator The liquid inlet of bottom is connected；The semi lean solution outlet of regenerator lower end respectively with semi lean solution entrance, the heat pump semi lean solution of reboiler Heating gate is connected.
The condensation-water drain of reboiler is connected with the condensing water inlet of cooling water tank, the condensation-water drain of cooling water tank and heat The heat exchanging liquid import of pump is connected, and the heat exchanging liquid outlet of heat pump is connected with condensing water inlet after the heat exchange of cooling water tank；Heat pump The sour moisture outlet of heat of recuperated gas entrance and regenerator upper end be connected, outlet and the entrance of separator after the heat exchange of heat pump Being connected, the acid gas outlet of separator is connected with acid gas collection box, and the sour water of separator exports by sour water reflux pump and regenerator The sour water refluxing opening of upper end is connected.
As a kind of preferred version, semi lean solution aftercooler described in the utility model leads to the second heat exchange of semi lean solution heat exchanger It is provided with valve between road outlet.
As another kind of preferred version, the second heat exchanger channels entrance and regeneration of poor rich liquid heat exchanger described in the utility model It is provided with valve between the lean solution outlet of tower lower end.
Secondly, it is provided with valve between MDEA circulating pump described in the utility model and lean solution import.
It addition, flashed vapour outlet in flash vessel top described in the utility model is connected with regenerator or acid gas collection box.
This utility model beneficial effect.
This utility model with the addition of hydraulic turbine installation and the fluid pressure of rich solution can be utilized to be converted into the machinery of circulating pump Energy.The heat energy that with the addition of heat pump reclaiming tower acid water provides reboiler heater.With the addition of bushing type microreactor to coordinate CO2And H2The absorption of S so that the maximization of absorption efficiency.Maximum feature can utilize semi lean solution to flow back into absorption tower, reduces Reboiler section reheats.The tank washing that finally with the addition of absorption tower dampness absorbs the harmful gas that can be dissolved in water further Body.This flow path device can be accomplished almost without pollution, the maximized re-using of the energy, and can accomplish CO simultaneously2And H2S Maximize advantages such as coordinating absorption.
It is generally acknowledged that MEDA removes CO2Efficiency be up to more than 95%, if process H simultaneously2S, then remove H2The efficiency meeting of S The lowest.This is because speed different during reaction, MEDA and CO2During reaction partially slow and and H2S is the most fast.So using one Plant bushing type microreactor and activator piperazine then can accelerate MEDA and CO2Reaction allows itself and H2The reaction of S reaches to synchronize.? Energy recovery aspect uses the pressure of hydraulic turbine and heat pump withdrawal liquid to reclaim sour water to circulating pump supply mechanical energy and heat pump Heat energy supply the semi lean solution that boils again.And be additionally arranged rich or poor/half poor rich liquid heat exchanger and can carry out heat exchange with MDEA rich solution Reclaim heat energy.After arranging two, refrigerator is respectively half lean/lean solution aftercooler.That reduces rapidly after lean/semi lean solution heat exchange is remaining Temperature, it is ensured that reach the condition of absorption tower internal-response.Prevent the temperature within regenerator from MDEA turning lean impact.Use again Boiling device, the semi lean solution entrance reboiler bottom regenerator, then semi lean solution and the reboiler upper steam after boiling return again regeneration Tower.The produced water that condenses of reboiler can be delivered directly to cooling water tank, so can make full use of and saving water resource.
It is generally acknowledged that condensation water is that comparison totally and is cleaned.On the top of regenerator, out sour water gas is used after heat pump Separator carries out gas-liquid separation, and sour water is reclaimed by sour water reflux pump and enters regenerator, and acid gas acid gas collection box reclaims. On absorption tower, purification gas out is through water washing groove, H2S is dissolved in water and CO2Being slightly soluble in water can be harmful do not absorb in time Gas retrieves washing, can directly connect regenerator and be further processed after washing.Major part uses pump in this process Conveying carries out gas purification step by step and processes.
This utility model adds a bushing type microreactor and adds activator piperazine quickening MDEA and CO2Anti- Should, so can meet MDEA and H2S and CO2Coordination absorb.It is uneconomic for also having traditional double-tower type to process landfill gas, Such as from absorption tower, rich solution out, through pressurization, is therefore added in view of withdrawal liquid pressure to not waste the energy Hydraulic turbine installation reclaim can give circulating pump energy supply be used for semi lean solution be recycled into absorption tower.This technique adds semi lean solution With lean solution two cooling line enter absorption tower, reduce semi lean solution through reboiler boil the most again process save the energy.
Use heat pump that the heat energy heat exchange of cooling water and acid gas is connect the heat energy after heat exchange again when reclaiming the heat energy of acid gas Boiling again of reboiler supply semi lean solution.The condensation water of acid gas is discharged through separator acid gas after heat pump and is collected, and sour water refluxes Enter regenerator.In order to absorption tower can not absorb CO efficiently2And H2S, allows wet purification gas wash through water washing groove, After washing, cleaning mixture returns regenerator by CO2And H2S separates out.Whole device technique absorbs CO to accelerate absorption tower2With efficiently profit It is main with hydraulic pressure heat energy, the cost purifying technique can be substantially reduced.Crucial whole technique will not produce secondary pollution, protects ring Border, removes CO2And H2The advantages such as the efficiency of S.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described further below in conjunction with the accompanying drawings.This utility model protection domain It is not only limited to the statement of herein below.
Fig. 1 is this utility model structural representation.
In figure, 1 be raw material gas tank, 2 for unstripped gas booster pump, 3 for absorption tower, 4 for bushing type microreactor, 5 for activation Agent piperazine entrance, 6 be gas-liquid separator, 7 for hydraulic turbine, 8 for circulating pump, 9 for flash vessel, 10 for poor rich liquid heat exchanger, 11 For semi lean solution heat exchanger, 12 be regenerator, 13 for reboiler, 14 for cooling water tank, 15 for heat pump, 16 for separator, 17 for acid Water reflux pump, 18 be acid gas collection box, 19 be cold air after semi lean solution, 20 be lean solution aftercooler, 21 be MDEA circulating pump, 22 for washing Wash groove reflux pump, 23 be water washing groove, 24 regulate the flow of vital energy collecting box for place.
Detailed description of the invention
As it can be seen, this utility model includes that raw material gas tank (1), unstripped gas booster pump (2), absorption tower (3), sleeve pipe decline Reactor (4), activator piperazine entrance (5), gas-liquid separator (6), hydraulic turbine (7), circulating pump (8), flash vessel (9), lean Rich solution heat exchanger (10), semi lean solution heat exchanger (11), regenerator (12), reboiler (13), cooling water tank (14), heat pump (15), Separator (16), sour water reflux pump (17), acid gas collection box (18), semi lean solution aftercooler (19), lean solution aftercooler (20), MDEA Regulating the flow of vital energy collecting box (24) in circulating pump (21), sink reflux pump (22), water washing groove (23), place, bushing type microreactor (4) sets Putting in absorption tower (3) in the cavity of side, activator piperazine entrance (5) connects with bushing type microreactor (4) outboard chambers Being arranged on cavity bottom, bushing type microreactor (4) lower end import is connected with raw material gas tank (1) by unstripped gas booster pump (2).
Cavity upper end above bushing type microreactor (4) upper end outlet is provided with vertical exit, vertical exit and absorption Gas-liquid separator (6) entrance of tower (3) interior upper end is connected, gas-liquid separator (6) upper end gas outlet and water washing groove (23) phase Even, the gas outlet of water washing groove (23) collecting box (24) of regulating the flow of vital energy with place is connected, and the liquid outlet of water washing groove (23) passes through to wash Wash groove reflux pump (22) to be connected with the centre inlet of vertical regenerator (12)；Gas-liquid separator (6) is arranged away from cavity side lower end Having downward liquid outlet, liquid outlet absorption tower (3) interior space outer with cavity connects, and absorption tower (3) lower end is provided with and chamber The horizontal rich solution outlet of Absorption in vitro tower (3) interior space connection, rich solution outlet is connected with the import of hydraulic turbine (7), and fluid power is saturating The outlet of flat (7) by flash vessel (9) respectively with poor rich liquid heat exchanger (10), the first heat exchanger channels of semi lean solution heat exchanger (11) Entrance is connected, poor rich liquid heat exchanger (10), the first heat exchanger channels outlet and richness of reboiler (13) of semi lean solution heat exchanger (11) Liquid import is connected.
The drive output of hydraulic turbine (7) is connected with the driving input of circulating pump (8), and the outlet of circulating pump (8) is same The semi lean solution import being arranged on cavity bottom with the connection of bushing type microreactor (4) outboard chambers is connected, the import of circulating pump (8) It is connected with the second heat exchanger channels outlet of semi lean solution heat exchanger (11) by semi lean solution aftercooler (19), semi lean solution heat exchanger (11) The semi lean solution outlet of the second heat exchanger channels entrance and regenerator (12) middle part be connected.
Second heat exchanger channels entrance of poor rich liquid heat exchanger (10) is connected with the outlet of regenerator (12) lower end lean solution, lean rich solution Second heat exchanger channels outlet of heat exchanger (10) passes sequentially through lean solution aftercooler (20), MDEA circulating pump (21) declines with sleeve pipe The connection of reactor (4) outboard chambers is arranged on the lean solution import on cavity top and is connected.
The gas outlet of reboiler (13) is connected with the gas access of regenerator (12) bottom, the semi lean solution of reboiler (13) Outlet is connected with the liquid inlet of regenerator (12) bottom；Regenerator (12) lower end semi lean solution outlet respectively with reboiler (13) Semi lean solution entrance, heat pump (15) semi lean solution heating gate be connected.
The condensation-water drain of reboiler (13) is connected with the condensing water inlet of cooling water tank (14), cooling water tank (14) cold Solidifying water out is connected with the heat exchanging liquid import of heat pump (15), the heat exchanging liquid outlet of heat pump (15) and changing of cooling water tank (14) After heat, condensing water inlet is connected；The sour moisture outlet phase of the heat of the recuperated gas entrance of heat pump (15) and regenerator (12) upper end Even, after the heat exchange of heat pump (15), outlet is connected with the entrance of separator (16), and the acid gas outlet of separator (16) is reclaimed with acid gas Case (18) is connected, the sour water outlet of separator (16) the sour water refluxing opening by sour water reflux pump (17) Yu regenerator (12) upper end It is connected.
Wherein raw material gas tank (1), acid gas collection box (18), place collecting box (24) of regulating the flow of vital energy belongs to collection system.Unstripped gas increases Press pump (2), circulating pump (8), sour water reflux pump (17), MDEA circulating pump (21), sink reflux pump (22) belong to gas-liquid conveying System.Bushing type microreactor (4), activator piperazine entrance (5) belong to promotion reaction and accelerate absorption system.Gas-liquid separator (6), separator (16) belongs to Separate System of Water-jet.Hydraulic turbine (7), poor rich liquid heat exchanger (10), semi lean solution heat exchanger (11), Heat pump (15) belongs to fluid pressure and air heat energy recovery system.Flash vessel (9), reboiler (13) belong to blood pressure lowering and auxiliary of boiling again System.
It is provided with valve between described semi lean solution aftercooler (19) and the second heat exchanger channels outlet of semi lean solution heat exchanger (11) Door.
Set between second heat exchanger channels entrance of described poor rich liquid heat exchanger (10) and the outlet of regenerator (12) lower end lean solution It is equipped with valve.
It is provided with valve between described MDEA circulating pump (21) and lean solution import.
The flashed vapour outlet of described flash vessel (9) top is connected with regenerator (12) or acid gas collection box (18).
This process unit meeting scale is built according to actual landfill yard operation conditions.When assembly, can first do main Partially absorb tower (3) and regenerator (12).Arrange that when doing absorption tower (3) miniature double tube reactor (4) is gentle therein Liquid/gas separator (6).Hydraulic turbine (7), flash vessel (9), poor rich liquid heat exchanger (10), semi lean solution is arranged then according to art work sheet The major part such as cold air (20), separator (16) after heat exchanger (11), reboiler (13), lean solution.Some circulations are installed the most again Pump and heat pump.Finally arrange water washing groove (23) and gas loading attachment.
Described regenerator can use contains precious sbhb type regenerator.
Described heat pump can use the CWW type heat pump of section's Lay Tyke.
Work process of the present utility model is described below in conjunction with the accompanying drawings.
Hydraulic turbine (7) top lead-in wire supply circulating pump (8) energy is converted by rich solution pressure.Flash vessel (9) top After egress line is flash distillation rich solution, after the reduction of rich solution pressure, the flashed vapour of gained resolves gained from rich solution, and flash gas can be straight Access regenerator (12), it is also possible to be directly accessed acid gas collection box (18).Rich solution behind heat exchanger (10), (11) is direct Entering from reboiler (13) bottom, heat exchanger (10), the outlet of (11) top are semi lean solution, and lean solution heat exchange exports.Reboiler (13) Left side has two imports to enter regenerator (12), and upper inlet line is some gases separated out after reboiler (13) heats up, under enter Mouth line is that semi lean solution is heated to reflux into regenerator (12).Reboiler 13 upper right import is the low-pressure steam work for reboiler (13) Making, being connected into cooling water tank (14) from reboiler (13) is condensed water, the product of reboiler work gained.Cooling water tank (14) left side Reflux after heat setting most of in heat pump (15) absorption condensation water again with the acid gas heat exchange of heat in heat pump (15) for condensed water (14) natural cooling after entering cooling water tank.Heat pump (15) lower-left lead-in wire is connected to heat pump 15 with the semi lean solution to boil again and absorbs heat energy Enter back into reboiler (13) to afterwards the heating of semi lean solution temperature.Heat pump (15) left side is acid gas import, exports after being arranged above heat exchange.Inhale Receiving tower (3) right side upper inlet is lean solution import, and lower right-hand side is semi lean solution import.Just from absorption tower (3) gas warp out After crossing water washing groove (23) washing, entrance process gas collecting box (24) is collected again.Water washing groove (23) dissolves remainder have After evil gas, fetch regenerator (12) through pumping and process.
It is understood that above with respect to specific descriptions of the present utility model, be merely to illustrate this utility model and not It is limited to the technical scheme described by this utility model embodiment, it will be understood by those within the art that, the most permissible This utility model is modified or equivalent, to reach identical technique effect；Needs are used, all in this reality as long as meeting Within novel protection domain.

Claims (5)

1. double-tower type MEDA processes a landfill gas system, declines including raw material gas tank, unstripped gas booster pump, absorption tower, sleeve pipe Reactor, activator piperazine entrance, gas-liquid separator, hydraulic turbine, circulating pump, flash vessel, poor rich liquid heat exchanger, semi lean solution change Hot device, regenerator, reboiler, cooling water tank, heat pump, separator, sour water reflux pump, acid gas collection box, semi lean solution aftercooler, lean Regulate the flow of vital energy collecting box in liquid aftercooler, MDEA circulating pump, sink reflux pump, water washing groove, place, it is characterised in that sleeve pipe declines reaction Device is arranged in absorption tower in the cavity of side, and activator piperazine entrance connects with bushing type microreactor outboard chambers and is arranged on Cavity bottom, the lower end import of bushing type microreactor is connected with raw material gas tank by unstripped gas booster pump；
Cavity upper end above bushing type microreactor upper end outlet is provided with vertical exit, vertical exit and upper end in absorption tower Gas-liquid separator entrance be connected, gas-liquid separator upper end gas outlet is connected with water washing groove, the gas outlet of water washing groove Collecting box of regulating the flow of vital energy with place is connected, and the liquid outlet of water washing groove is by the centre inlet phase of sink reflux pump with vertical regenerator Even；Gas-liquid separator is provided with downward liquid outlet away from cavity side lower end, space in liquid outlet absorption tower outer with cavity Connection, lower end, absorption tower is provided with the horizontal rich solution outlet connected with space in absorption tower outside cavity, and rich solution outlet is saturating with fluid power Flat import is connected, the outlet of hydraulic turbine by flash vessel respectively with poor rich liquid heat exchanger, the first of semi lean solution heat exchanger change Passage of heat entrance is connected, poor rich liquid heat exchanger, the first heat exchanger channels outlet and rich solution import of reboiler of semi lean solution heat exchanger It is connected；
The drive output of hydraulic turbine is connected with the driving input of circulating pump, and circulation delivery side of pump declines reaction with sleeve pipe The connection of device outboard chambers is arranged on the semi lean solution import of cavity bottom and is connected, and the import of circulating pump is by semi lean solution aftercooler and half Second heat exchanger channels outlet of lean solution heat exchanger is connected, in the middle part of the second heat exchanger channels entrance of semi lean solution heat exchanger and regenerator partly Lean solution outlet is connected；
Second heat exchanger channels entrance of poor rich liquid heat exchanger is connected with the outlet of regenerator lower end lean solution, the second of poor rich liquid heat exchanger Heat exchanger channels outlet passes sequentially through lean solution aftercooler, MDEA circulating pump and is arranged on connecting with bushing type microreactor outboard chambers The lean solution import on cavity top is connected；
The gas outlet of reboiler is connected with the gas access of regenerator bottom, semi lean solution outlet and the regenerator bottom of reboiler Liquid inlet be connected；The semi lean solution outlet of regenerator lower end respectively with the semi lean solution entrance of reboiler, the heating of heat pump semi lean solution Mouth is connected；
The condensation-water drain of reboiler is connected with the condensing water inlet of cooling water tank, the condensation-water drain of cooling water tank and heat pump Heat exchanging liquid import is connected, and the heat exchanging liquid outlet of heat pump is connected with condensing water inlet after the heat exchange of cooling water tank；Changing of heat pump Heater gas inlet port is connected with the sour moisture outlet of the heat of regenerator upper end, exports the entrance phase with separator after the heat exchange of heat pump Even, the acid gas outlet of separator is connected with acid gas collection box, and the sour water outlet of separator is by sour water reflux pump and regenerator The sour water refluxing opening of end is connected.
The most according to claim 1, a kind of double-tower type MEDA processes landfill gas system, it is characterised in that cold after described semi lean solution It is provided with valve between device and the second heat exchanger channels outlet of semi lean solution heat exchanger.
The most according to claim 1, a kind of double-tower type MEDA processes landfill gas system, it is characterised in that described lean rich solution heat exchange It is provided with valve between second heat exchanger channels entrance of device and the outlet of regenerator lower end lean solution.
The most according to claim 1, a kind of double-tower type MEDA processes landfill gas system, it is characterised in that described MDEA circulating pump And it is provided with valve between lean solution import.
The most according to claim 1, a kind of double-tower type MEDA processes landfill gas system, it is characterised in that described flash vessel top Flashed vapour outlet is connected with regenerator or acid gas collection box.
CN201620764421.6U 2016-07-20 2016-07-20 A kind of double-tower type MEDA processes landfill gas system Expired - Fee Related CN205850531U (en)

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CN201620764421.6U CN205850531U (en) 2016-07-20 2016-07-20 A kind of double-tower type MEDA processes landfill gas system

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CN201620764421.6U CN205850531U (en) 2016-07-20 2016-07-20 A kind of double-tower type MEDA processes landfill gas system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106000009A (en) * 2016-07-20 2016-10-12 辽宁工业大学 Twin-tower MEDA landfill treating gas system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106000009A (en) * 2016-07-20 2016-10-12 辽宁工业大学 Twin-tower MEDA landfill treating gas system
CN106000009B (en) * 2016-07-20 2018-06-19 辽宁工业大学 A kind of double-tower type MEDA handles landfill gas system

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