CN203790799U - PSA purification section reverse gas release recovery and purification section recycling device - Google Patents
PSA purification section reverse gas release recovery and purification section recycling device Download PDFInfo
- Publication number
- CN203790799U CN203790799U CN201420159825.3U CN201420159825U CN203790799U CN 203790799 U CN203790799 U CN 203790799U CN 201420159825 U CN201420159825 U CN 201420159825U CN 203790799 U CN203790799 U CN 203790799U
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- tank
- valve
- gas
- inverse put
- purifying column
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Abstract
The utility model relates to a PSA purification section reverse gas release recovery and purification section recycling device. According to the device, a coal gas return cabinet is connected with the bottom of a purification tower through a circuit pipeline; the purification tower is connected with the bottom of a reverse release tank through a circuit pipeline; the reverse release tank is connected with a purification tank through a circuit pipeline; the reverse release tank is connected with a scavenging tank through a circuit pipeline; the scavenging tank is connected with a gas release pipe through a circuit pipeline; the circuit pipeline is controlled by a valve and is connected with a circuit pipeline of the coal gas return cabinet controlled by the valve; or a circuit pipeline of the scavenging tank controlled by the valve is connected with the gas release pipe; the circuit pipeline controlled by the valve is connected with the purification tower. The bottom of the purification tower is connected with the gas release pipe through a circuit pipeline between the coal gas return cabinet and the purification tower; the gas release pipe is connected with a recovery tank through a circuit pipeline; the recovery tank is connected with the purification tank through a circuit pipeline. According to the equipment, the purity of CO2 and content of H2 and N2 can be improved, the resources are saved, and the income is increased.
Description
Technical field
The utility model relates to a kind of PSA clean-up stage inverse put gas and is recovered to the equipment that rectifying section reclaims again, is specially purification inverse put loss gas is reclaimed, purified, and further utilize, and belongs to chemical industry equipment field.
Background technology
Inverse put gas originally initial design is whole emptying and is back to gas chamber, and available gas loses greatly like this, synthetic ammonia output do not reach design standard.All emptying: gas loss, welding.Be back to gas chamber: affect the effective inflate quantity of compressor, play circulation in system, restriction synthetic ammonia output cannot promote.
Summary of the invention
The purpose of this utility model is to provide a kind of PSA clean-up stage inverse put gas to be recovered to the equipment that rectifying section reclaims again.
The utility model is to realize like this above-mentioned purpose:
A kind of PSA clean-up stage inverse put gas is recovered to rectifying section retracting device again, this device comprises back gas chamber, inverse put tank, purification tank and purifying column, the described gas chamber that returns is connected with purifying column bottom through the cable tubing of valve control, purifying column is connected with inverse put pot bottom through the cable tubing of valve control, inverse put tank is connected with purification tank through the cable tubing of valve control, inverse put tank via line pipeline is connected with scavenging tank, scavenging tank is connected with bleeder pipe through the cable tubing of valve control, after this cable tubing, after valve control, be also connected with the cable tubing through valve control that returns gas chamber, or scavenging tank is connected with bleeder pipe through the cable tubing of valve control, this cable tubing is also connected with purifying column after the cable tubing of valve control.
Described purifying column bottom is also connected with bleeder pipe through returning gas chamber to the cable tubing of the valve control between purifying column, bleeder pipe is connected with recycling can through the cable tubing of valve control, recycling can is connected with purification tank through the cable tubing of valve control, wherein returns gas chamber to purifying column and purifying column to the junction of bleeder pipe and is provided with valve.
Described purifying column bottom is connected with inverse put tank through the cable tubing of valve control, and purifying column bottom is also connected with scavenging tank to the cable tubing of bleeder pipe through the cable tubing of valve control.Between each equipment and cable tubing, be provided with valve.
A kind of PSA clean-up stage inverse put gas is recovered to rectifying section recovery process again, purification inverse put loss gas is got back to rectifying section to be recycled again, open valve 1 ', 3 ', 4 ', 5 ', 6 ', gas is passed into purifying column through returning gas chamber, all rise the air pressure in purifying column, gas after adsorption equilibrium, is opened valve 7 ', 9 ', 10 ' in purifying column, and gas via line pipeline buffering is also delivered to inverse put tank; Open valve 17 ', 18 ', 20 ', 21 ' 22 ', all fall the air pressure in inverse put tank, gas is through inverse put tank inverse put, and wherein inverse put gas componant is high, is 1000 ~ 1500Nm in inverse put tolerance
3the further inverse put tolerance of/h(is further controlled as 1250Nm
3/ h) after lower via line pipeline buffering, deliver to the purification of purification tank; Open valve 11 ', 12 ', 13 ', 14 ', what inverse put gas componant was low passes into scavenging tank, inverse put gas is delivered to bleeder pipe after the cable tubing buffering of scavenging tank, then opens valve 8 ', passes into the cable tubing of scavenging tank to bleeder pipe through purifying column purified gas; Further open valve 2 ', 4 ', or available gas composition low after scavenging tank is delivered to bleeder pipe, further open valve 2 ', 4 ', 5 ', 6 ', what available gas composition was low enter purifying column further all presses, adsorbs.Described inverse put gas is carbon dioxide.In purifying column, all press with inverse put tank in the pressure that all falls be 0.05 ~ 1.5MPa.Further in purifying column, all press with inverse put tank in the pressure that all falls be 0.35MPa.
Valve-off 1 ', 2 ', 3 ', 4 ', 5 ', 6 ', 7 ', 9 ', 10 ', 11 ', 12 ', 13 ', 14 ', 17 ', 18 ', 20 ', 21 ', 22 ', open valve 6 ', 5 ', 14 ', 2 ', 3 ', 15 ', 16 ', 19 ', 21 ', gas is gone back via line pipeline and is delivered to bleeder pipe emptying in purifying column after desorb, gas is delivered to recycling can and is reclaimed after emptying, and other through reclaiming are delivered to purifying column again and purified.It is described that after recycling can reclaims, to deliver to the gas of purifying in purifying column be hydrogen and nitrogen gas body again.
All press section to meet each section of pressure purification and remain all flat, between purifying column and inverse put tank, all rise and all fall completely and equate, all fall is inverse put, after equalization of pressure, be down to the application's 0.35MPa by original 0.42MPa, inverse put pressure decreased 0.07MPa, reduce purifying inverse put tolerance and also reduced, adopt technical scheme inverse put tolerance of the present invention by former 3250 Nm
3/ h drops to present 1250Nm
3/ h, so both optimization system inside, has alleviated again the excessive rectifying section load that causes of inverse put amount and has increased the weight of.
The high part of purification inverse put gas available gas composition is delivered to rectifying section and is done the power all rising when rectifying section recovery starts most, what part available gas composition was low purges displacement raising regeneration effect for system: low the purging of available gas composition for the application, effectively gas loss is little, but it is relatively on the high side to purge tolerance, reclaim available gas by inverse put, not only realize purging effect but also reduce gas loss, pass through output; And high the purging of available gas composition for ordinary circumstance, like this gas loss large, yield poorly.
The inverse put gas that rectifying section reclaims further improves effective H
2, N
2composition;
The high-purity CO that the absorption of purifying stays
2deliver to urea workshop section and produce urea.
Adopt technical scheme of the present invention to have following effect: 1, purifying inverse put tolerance is 1250 Nm
3/ h, the hydrogen nitrogen reclaiming has 1250 × 54%(inverse put middle hydrogen and nitrogen gas content of dropping a hint) × 90%(reclaims hydrogen nitrogen concentration and calculates by 90% concentration)=607.5Nm
3/ h, a time hydrogen nitrogen folding ammonia has 607.5 ÷ 2680 × 24=5.4 tons.By 2000 yuan of calculating of ton ammonia, benefit is 5.4 × 2000 yuan/ton=10800 yuan/day, and reclaim the benefit of 10800 yuan every day from the gas of loss.Effectively save coal consumption, power consumption.Reduce toxic emission.
Brief description of the drawings
Fig. 1 is that PSa clean-up stage inverse put gas is recovered to the equipment that rectifying section reclaims again, wherein 1. times gas chambers, and 2. inverse put tank, 3. purification tank, 4. purifying column, 5. scavenging tank, 6. recycling can, 1 ' ~ 22 ' is the valve arranging between each equipment and cable tubing.
Detailed description of the invention
embodiment 1
A kind of PSA clean-up stage inverse put gas is recovered to rectifying section retracting device again, this device comprises back gas chamber 1, inverse put tank 2, purification tank 3 and purifying column 4, described returns gas chamber 1 through valve 1 ', 3 ', 4 ', 5 ', 6 ' the cable tubing of controlling is connected with purifying column 4 bottoms, purifying column 4 is through valve 7 ', 9 ', 10 ' the cable tubing of controlling is connected with inverse put tank 2 bottoms, inverse put tank 2 is through valve 17 ', 18 ' the cable tubing of controlling is connected with purification tank 3, inverse put tank 2 via line pipelines are connected with scavenging tank 5, scavenging tank 5 is through valve 11 ', 12 ' the cable tubing of controlling is connected with bleeder pipe 7, after this cable tubing through valve 13 ', 14 ' control after also with return gas chamber 1 through valve 2 ', 4 ' the cable tubing of controlling connects, or the cable tubing that scavenging tank 5 is controlled through valve 11 ', 12 ' is connected with bleeder pipe 7, this cable tubing, through valve 2 ', 4 ', is also connected with purifying column 4 after the cable tubing of 5 ', 6 ' control.
Purifying column 4 bottoms are also through returning gas chamber 1 to the valve 6 ' between purifying column 4,5 ', 4 ', 14 ' the cable tubing of controlling is connected with bleeder pipe 7, bleeder pipe 7 is through valve 2 ', and 3 ' 15 ' cable tubings of controlling are connected with recycling can 6, and recycling can 6 is through valve 16 ', 19 ' the cable tubing of controlling is connected with purification tank 3, wherein goes back to gas chamber 1 to purifying column 4 and purifying column 4 to the junction of bleeder pipe 7 and is provided with valve 5 '.
The cable tubing that purifying column 4 bottoms are controlled through valve 7 ' is connected with inverse put tank 5, and the cable tubing that purifying column 4 bottoms are controlled through valve 8 ' is also connected with scavenging tank 5 to the cable tubing of bleeder pipe 7.
Between described each equipment and cable tubing, be provided with valve 1 ' ~ 22 '.
embodiment 2
A kind of PSA clean-up stage inverse put gas is recovered to rectifying section recovery process again, purification inverse put loss gas is got back to rectifying section to be recycled again, open valve 1 ', 3 ', 4 ', 5 ', 6 ', gas is passed into the adsorbent desorb in purifying column of purifying column 4(carbon dioxide through returning gas chamber 1), all rise air pressure in purifying column 4 to 0.35MPa, after balance upon adsorption, open valve 7 ', 9 ', 10 ', gas via line pipeline buffering is also delivered to inverse put tank 2 (gas of inverse put is stored buffering in surge tank); Open valve 17 ', 18 ', 20 ', 21 ' 22 ', all fall air pressure in inverse put tank 2 to 0.35MPa, gas is through inverse put tank 2 inverse puts, and wherein inverse put gas componant is high, is 1250Nm in inverse put tolerance
3under/h, after via line pipeline buffering, deliver to purification tank 3 purify (the high carbon dioxide of described inverse put gas componant); Open valve 11 ', 12 ', 13 ', 14 ', what inverse put gas componant was low passes into scavenging tank 5, inverse put gas is delivered to bleeder pipe 7 after the cable tubing buffering of scavenging tank 5, open again valve 8 ', through purifying column 4 purified gases pass into scavenging tank 5 to the cable tubing of bleeder pipe 7 (described inverse put gas componant low be a small amount of titanium dioxide what is said or talked about, hydrogen, nitrogen, be placed in scavenging tank and store, pressure by scavenging tank passes into bleeder pipe, then enters back the cable tubing of gas chamber to purifying column through blow-down pipe); Further open valve 2 ', 4 ', or available gas composition low after scavenging tank 5 is delivered to bleeder pipe 7, further open valve 2 ', 4 ', 5 ', 6 ', what available gas composition was low enter purifying column 4 further all presses, adsorbs (purge gas enters purifying column and carries out Adsorption and desorption through reproducing adsorbent).
Valve-off 1 ', 2 ', 3 ', 4 ', 5 ', 6 ', 7 ', 9 ', 10 ', 11 ', 12 ', 13 ', 14 ', 17 ', 18 ', 20 ', 21 ', 22 ', open valve 6 ', 5 ', 14 ', 2 ', 3 ', 15 ', 16 ', 19 ', 21 ', gas is gone back via line pipeline and is delivered to bleeder pipe emptying after the interior desorb of purifying column 4, after emptying, (gas after emptying is delivered to recycling can to gas after adsorbent reclaims, this emptying gas is hydrogen, nitrogen, and a small amount of titanium dioxide) deliver to recycling can 6 and reclaim, other through reclaiming are delivered to purifying column 3 again and are purified.
embodiment 3
A kind of PSA clean-up stage inverse put gas is recovered to rectifying section recovery process again, purification inverse put loss gas is got back to rectifying section to be recycled again, open valve 1 ', 3 ', 4 ', 5 ', 6 ', gas is passed into the adsorbent desorb in purifying column of purifying column 4(carbon dioxide through returning gas chamber 1), all rise air pressure in purifying column 4 to 0.05MPa, after balance upon adsorption, open valve 7 ', 9 ', 10 ', gas via line pipeline buffering is also delivered to inverse put tank 2 (gas of inverse put is stored buffering in surge tank); Open valve 17 ', 18 ', 20 ', 21 ' 22 ', all fall air pressure in inverse put tank 2 to 0.05MPa, gas is through inverse put tank 2 inverse puts, and wherein inverse put gas componant is high, is 1000Nm in inverse put tolerance
3under/h, after via line pipeline buffering, deliver to purification tank 3 purify (the high carbon dioxide of described inverse put gas componant); Open valve 11 ', 12 ', 13 ', 14 ', what inverse put gas componant was low passes into scavenging tank 5, inverse put gas is delivered to bleeder pipe 7 after the cable tubing buffering of scavenging tank 5, open again valve 8 ', through purifying column 4 purified gases pass into scavenging tank 5 to the cable tubing of bleeder pipe 7 (described inverse put gas componant low be a small amount of titanium dioxide what is said or talked about, hydrogen, nitrogen, be placed in scavenging tank and store, pressure by scavenging tank passes into bleeder pipe, then enters back the cable tubing of gas chamber to purifying column through blow-down pipe); Further open valve 2 ', 4 ', or available gas composition low after scavenging tank 5 is delivered to bleeder pipe 7, further open valve 2 ', 4 ', 5 ', 6 ', what available gas composition was low enter purifying column 4 further all presses, adsorbs (purge gas enters purifying column and carries out Adsorption and desorption through reproducing adsorbent).
Valve-off 1 ', 2 ', 3 ', 4 ', 5 ', 6 ', 7 ', 9 ', 10 ', 11 ', 12 ', 13 ', 14 ', 17 ', 18 ', 20 ', 21 ', 22 ', open valve 6 ', 5 ', 14 ', 2 ', 3 ', 15 ', 16 ', 19 ', 21 ', gas is gone back via line pipeline and is delivered to bleeder pipe emptying after the interior desorb of purifying column 4, after emptying, (gas after emptying is delivered to recycling can to gas after adsorbent reclaims, this emptying gas is hydrogen, nitrogen, and a small amount of titanium dioxide) deliver to recycling can 6 and reclaim, other through reclaiming are delivered to purifying column 3 again and are purified.
embodiment 4
A kind of PSA clean-up stage inverse put gas is recovered to rectifying section recovery process again, purification inverse put loss gas is got back to rectifying section to be recycled again, open valve 1 ', 3 ', 4 ', 5 ', 6 ', gas is passed into the adsorbent desorb in purifying column of purifying column 4(carbon dioxide through returning gas chamber 1), all rise air pressure in purifying column 4 to 1.5MPa, after balance upon adsorption, open valve 7 ', 9 ', 10 ', gas via line pipeline buffering is also delivered to inverse put tank 2 (gas of inverse put is stored buffering in surge tank); Open valve 17 ', 18 ', 20 ', 21 ' 22 ', all fall air pressure in inverse put tank 2 to 1.5MPa, gas is through inverse put tank 2 inverse puts, and wherein inverse put gas componant is high, is 1500Nm in inverse put tolerance
3under/h, after via line pipeline buffering, deliver to purification tank 3 purify (the high carbon dioxide of described inverse put gas componant); Open valve 11 ', 12 ', 13 ', 14 ', what inverse put gas componant was low passes into scavenging tank 5, inverse put gas is delivered to bleeder pipe 7 after the cable tubing buffering of scavenging tank 5, open again valve 8 ', through purifying column 4 purified gases pass into scavenging tank 5 to the cable tubing of bleeder pipe 7 (described inverse put gas componant low be a small amount of titanium dioxide what is said or talked about, hydrogen, nitrogen, be placed in scavenging tank and store, pressure by scavenging tank passes into bleeder pipe, then enters back the cable tubing of gas chamber to purifying column through blow-down pipe); Further open valve 2 ', 4 ', or available gas composition low after scavenging tank 5 is delivered to bleeder pipe 7, further open valve 2 ', 4 ', 5 ', 6 ', what available gas composition was low enter purifying column 4 further all presses, adsorbs (purge gas enters purifying column and carries out Adsorption and desorption through reproducing adsorbent).
Valve-off 1 ', 2 ', 3 ', 4 ', 5 ', 6 ', 7 ', 9 ', 10 ', 11 ', 12 ', 13 ', 14 ', 17 ', 18 ', 20 ', 21 ', 22 ', open valve 6 ', 5 ', 14 ', 2 ', 3 ', 15 ', 16 ', 19 ', 21 ', gas is gone back via line pipeline and is delivered to bleeder pipe emptying after the interior desorb of purifying column 4, after emptying, (gas after emptying is delivered to recycling can to gas after adsorbent reclaims, this emptying gas is hydrogen, nitrogen, and a small amount of titanium dioxide) deliver to recycling can 6 and reclaim, other through reclaiming are delivered to purifying column 3 again and are purified.
Claims (4)
1. a PSA clean-up stage inverse put gas is recovered to rectifying section retracting device again, this device comprises back gas chamber (1), inverse put tank (2), purification tank (3) and purifying column (4), described returns gas chamber (1) through valve (1 ', 3 ', 4 ', 5 ', 6 ') cable tubing of controlling is connected with purifying column (4) bottom, purifying column (4) is through valve (7 ', 9 ', 10 ') cable tubing of controlling is connected with inverse put tank (2) bottom, inverse put tank (2) is through valve (17 ', 18 ') cable tubing of controlling is connected with purification tank (3), inverse put tank (2) via line pipeline is connected with scavenging tank (5), it is characterized in that: scavenging tank (5) is through valve (11 ', 12 ') cable tubing of controlling is connected with bleeder pipe (7), after this cable tubing through valve (13 ', 14 ') control after also with return gas chamber (1) through valve (2 ', 4 ') cable tubing of controlling connects, or the cable tubing that scavenging tank (5) is controlled through valve (11 ', 12 ') is connected with bleeder pipe (7), this cable tubing is also connected with purifying column (4) after the cable tubing of valve (2 ', 4 ', 5 ', 6 ') control.
2. PSA clean-up stage inverse put gas according to claim 1 is recovered to rectifying section retracting device again, it is characterized in that: purifying column (4) bottom is also through returning gas chamber (1) to the valve (6 ' between purifying column (4), 5 ', 4 ', 14 ') cable tubing of controlling is connected with bleeder pipe (7), bleeder pipe (7) is through valve (2 ', 3 ' 15 ') cable tubing of controlling is connected with recycling can (6), recycling can (6) is through valve (16 ', 19 ') cable tubing of controlling is connected with purification tank (3), wherein go back to gas chamber (1) to purifying column (4) and purifying column (4) to the junction of bleeder pipe (7) and be provided with valve (5 ').
3. PSA clean-up stage inverse put gas according to claim 1 and 2 is recovered to rectifying section retracting device again, it is characterized in that: the cable tubing that purifying column (4) bottom is controlled through valve (7 ') is connected with inverse put tank (5), the cable tubing that purifying column (4) bottom is controlled through valve (8 ') is also connected with scavenging tank (5) to the cable tubing of bleeder pipe (7).
4. PSA clean-up stage inverse put gas according to claim 1 and 2 is recovered to rectifying section retracting device again, it is characterized in that: between each equipment and cable tubing, be provided with valve (1 ' ~ 22 ').
Priority Applications (1)
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CN201420159825.3U CN203790799U (en) | 2014-04-03 | 2014-04-03 | PSA purification section reverse gas release recovery and purification section recycling device |
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CN201420159825.3U CN203790799U (en) | 2014-04-03 | 2014-04-03 | PSA purification section reverse gas release recovery and purification section recycling device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103933825A (en) * | 2014-04-03 | 2014-07-23 | 湖北宜化化工股份有限公司 | Device and process for recycling reversely-released gas of PSA (Primary Secondary Amine) purification section to refinement section |
-
2014
- 2014-04-03 CN CN201420159825.3U patent/CN203790799U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103933825A (en) * | 2014-04-03 | 2014-07-23 | 湖北宜化化工股份有限公司 | Device and process for recycling reversely-released gas of PSA (Primary Secondary Amine) purification section to refinement section |
CN103933825B (en) * | 2014-04-03 | 2016-04-20 | 湖北宜化化工股份有限公司 | A kind of PSA clean-up stage inverse put gas is recovered to rectifying section retracting device and recovery process again |
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Legal Events
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20180403 |