CN106621696A - HYCO synthetic gas separation and purification system with internal waste gas recycling - Google Patents
HYCO synthetic gas separation and purification system with internal waste gas recycling Download PDFInfo
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- CN106621696A CN106621696A CN201611180835.5A CN201611180835A CN106621696A CN 106621696 A CN106621696 A CN 106621696A CN 201611180835 A CN201611180835 A CN 201611180835A CN 106621696 A CN106621696 A CN 106621696A
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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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0462—Temperature swing adsorption
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
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- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention relates to a HYCO synthetic gas separation and purification system with internal waste gas recycling, comprising a TSA (temperature swing adsorption) tank, a cold box, a PSA (pressure swing adsorption) tank, a PSA analyzed gas buffer tank, a TSA regenerated N2 inlet pipeline, a TSA relief pipeline, a TSA regeneration fire torch pipeline, and a circulating gas compressor; the TSA regenerated N2 inlet pipeline is connected to the TSA tank and is used for heating the TSA tank through N2 to remove again adsorbed H2O and CO2, the TSA regeneration fire torch pipeline is connected to the TSA tank, the TSA relief pipeline is led out of the TSA regeneration fire torch pipeline, is connected with the circulating gas compressor, and delivers H2O and CO2 removed by the TSA tank to the circulating gas compressor, the circulating gas compressor is also connected to the PSA analyzed gas buffer tank, recycles the analyzed gas in the PSA analyzed gas buffer tank, and returns the H2O and CO2 removed by the TSA tank and the analyzed gas in the analyzed gas buffer tank to a HYCO synthetic gas material pipeline. Compared with the prior art, the system of the invention has the advantages of good safety and reliability, high environmental friendliness, good convenience of operation and the like.
Description
Technical field
The present invention relates to HYCO synthesis gas isolation of purified systems, more particularly, to a kind of the HYCO that waste gas circulation is utilized is included
Synthesis gas isolation of purified system.
Background technology
HYCO synthesis gas is containing 54%CO and 45%H2And micro N2、CH4、Ar、H2O、CO2Deng industrial gaseous mixture
Body.HYCO isolation of purified systems are by H in synthesis gas2O and CO2Removed by TSA adsorption towers, secondly utilize CO, H2、N2、CH4With
The boiling point of the gases such as AR is different to utilize knockout drum by CO and H in cold box interior2Separate, H2It is outer after being purified by PSA
Send, CO gives client by outer after the pressurization of CO compressors, and the tail gas of generation then is put to torch burning.
TSA (temperature swing adsorption, temp.-changing adsorption) device is made up of two adsorption tanks, normally
Operational mode is series model, by the adsorbent of TSA to H2O and CO2Adsorbed, and can be allowed CO and H2、CH4、N2Pass through.
But TSA can progressively reach saturation with absorption, at this time need to cut out in a tank in TSA, using high temperature
N2Regeneration, and have a process for step-down in regenerative process, the unstripped gas of this part will be by putting torch burning emptying.
And this portion gas for putting torch burning will become CO2And H2O, increasing carbon emission causes the pollution to air.
Also refer to the method for the TSA containing air separation unit to adsorb to fall H about document2O and CO2, although also have regeneration
Process, but the raw material of space division is air, directly discharge air pressure release is not polluted.But the TSA for HYCO comes
Say, the waste gas produced in these pressure reductions can be what is recycled.
The content of the invention
The purpose of the present invention is exactly the defect in order to overcome above-mentioned prior art to exist and provides one kind and include waste gas circulation
The HYCO synthesis gas isolation of purified systems for utilizing.
The purpose of the present invention can be achieved through the following technical solutions：
It is a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, including TSA adsorption tanks, ice chest, PSA suction
Attached tank and PSA resolution gas surge tanks,
TSA adsorption tanks：Be connected with HYCO raw material of synthetic gas pipelines, for removing unstripped gas in H2O and CO2,
Ice chest：Knockout drum is inside provided with, knockout drum entrance is connected with the outlet of TSA adsorption tanks, using CO, H2、N2、
CH4It is different by CO in synthesis gas and H with the boiling point of the gas such as AR2Separate, CO is exported later by the pressurization of CO compressors, generation
Tail gas then is put to torch burning, H2The purification of PSA adsorption tanks is passed through,
PSA adsorption tanks：It is connected with knockout drum outlet, to H2Purified,
PSA resolution gas surge tanks：It is connected with PSA adsorption tanks,
Also include that TSA regenerates N2Flare line and recycle gas compressor are put in inlet line, TSA blowdown lines, TSA regeneration,
Described TSA regeneration N2Inlet line is connected with TSA adsorption tanks, for passing through N to TSA adsorption tanks2Heat and will inhale
Attached H2O and CO2Again remove, described TSA regeneration is put flare line and is connected with TSA adsorption tanks,
Described TSA blowdown lines put flare line extraction from TSA regeneration, and between recycle gas compressor, TSA are inhaled
The H of attached tank removing2O and CO2It is conveyed to recycle gas compressor,
Described recycle gas compressor is also connected with PSA resolution gas surge tanks, reclaims the parsing in PSA resolution gas surge tanks
Gas, described recycle gas compressor outlet is connected with HYCO raw material of synthetic gas pipelines, the H that TSA adsorption tanks are removed2O and CO2With
And the resolution gas in resolution gas surge tank are back to HYCO raw material of synthetic gas pipelines.
Described TSA adsorption tanks are provided with altogether two, respectively a TSA adsorption tanks and the 2nd TSA adsorption tanks, and described
One TSA adsorption tanks are arranged in parallel with the 2nd TSA adsorption tanks, and a described TSA adsorption tanks and the 2nd TSA adsorption tanks are gone here and there simultaneously
It is associated on HYCO raw material of synthetic gas pipelines, described TSA regeneration N2Inlet line simultaneously with a TSA adsorption tanks and the 2nd TSA
Adsorption tanks connect, and described TSA regeneration puts flare line while being connected with a TSA adsorption tanks and the 2nd TSA adsorption tanks.
Connecting tube and stop valve are set between described TSA adsorption tanks and the 2nd TSA adsorption tanks so that a TSA
Adsorption tanks are communicated with only one of which in the 2nd TSA adsorption tanks with HYCO raw material of synthetic gas pipelines.
Described recycle gas compressor has four sections, is followed by first circulation air compressor, second circulation air compressor, the 3rd
Ring air compressor and the 4th recycle gas compressor connect to be formed, described first circulation air compressor and second circulation air compressor
Between be connected by two sections of suction lines of recycle compressor, described second circulation air compressor and the 3rd recycle gas compressor it
Between be connected by three sections of suction lines of recycle compressor, between described the 3rd recycle gas compressor and the 4th recycle gas compressor
It is connected by four sections of suction lines of recycle compressor, described PSA resolution gas surge tank passes through one section of inlet tube of recycle compressor
Line is connected with the entrance of first circulation air compressor, and described TSA blowdown lines put flare line extraction from TSA regeneration, and connect
It is connected on three sections of suction lines of recycle compressor, described the 4th recycle gas compressor outlet is by four sections of outlets of recycle compressor
Pipeline is connected with HYCO raw material of synthetic gas pipelines.
Check valve is provided with described four sections of outlet lines of recycle compressor, described check valve flow direction is the 4th circulation
Air compressor outlet flow direction is to HYCO raw material of synthetic gas pipelines.
Pressure release hand valve and pressure release automatic regulating valve are provided with described TSA blowdown lines.
Described PSA adsorption tanks are exported and H2Product pipeline connects.
Described TSA regeneration is put and be provided with flare line torch valve of setting fire.
TSA is temperature inversion absorption, and a TSA adsorption tanks and the 2nd TSA adsorption tanks normal temperatures are lower 30 DEG C, unstripped gas
Middle H2O and CO2Can be in adsorbent A l2O3In the presence of adsorb, the H at 240 DEG C of the condition of high temperature2O and CO2Can be from adsorbent
It is detached, when the previous tank adsorption saturation in a TSA adsorption tanks and the 2nd TSA adsorption tanks, previous tank is cut out it is
System, under 22barg states, a pipeline is newly installed in the process in pressure release to 2barg, and from 22barg pressure release is started, and is passed through
Pressure release hand valve, to 9barg, is then shut off pressure release hand valve and pressure release automatic regulating valve with pressure release automatic regulating valve pressure release, and opens
The torch valve emptying of setting fire on flare line is put in TSA regeneration, is 0barg until adsorbing pressure tank, uses N2Through N2Heater is heated
To 280 DEG C, and N is regenerated by TSA2Inlet line enters a TSA adsorption tanks or the 2nd TSA adsorption tanks, makes H2O and CO2Again
Removing, has removed H2O and CO2Adsorption tanks cut system again and come into operation, continue to adsorb the H in raw material2O and CO2。
This part gas is caused three sections of suction lines of recycle compressor, HYCO circulation compressions by the present invention during step-down
Four sections of outlets of machine are connected by four sections of outlet lines of recycle compressor with HYCO raw material of synthetic gas pipelines, and re-use this portion
The waste gas for dividing further is purified.
In the present invention, TSA blowdown lines are put from TSA regeneration and drawn on flare line, and increase a pressure release and automatically adjust
Valve controlling the speed of pressure release, to ensure the normal operation of recycle compressor.
In the present invention, TSA blowdown lines bear pressure 40barg, and line size is 1 cun, and material is C steel.
In the present invention, TSA blowdown lines are provided with pressure release hand valve and pressure release automatic regulating valve, it is to avoid in the situation that do not come into operation
Under, two systems pressure is mutually gone here and there.
HYCO synthesis gas isolation of purified System Working Principle of the present invention is：
1st, the incipient stage is regenerated in TSA, TSA absorption pressure tanks are 22barg, are now operated, by TSA absorption
Tank is kept apart from HYCO raw material of synthetic gas pipelines, and TSA pressure releases have two lines road, is all the way torch of setting fire, and is all the way to follow
Ring compressor.
2nd, HYCO recycle compressors are four sections of reciprocating-piston compressors, and one section of entrance has what PSA was parsed
2barg low pressure resolution gas are forced into 3.6barg into HYCO recycle compressors, and after two sections of pressurizations, outlet pressure is
7.6barg, after three sections of pressurizations, outlet pressure 14.9barg, after four sections of pressurizations, outlet pressure is 23.4barg, and four sections go out
Mouth is connected to HYCO raw material of synthetic gas pipelines, is purified again.
3rd, relief valve starts pressure release, and system is from 22barg pressure releases to 9barg.Control valve opening is slowly opened according to pressure.
Until 9barg, system is automatically switched off after regulating valve, and by the closing of pressure release hand valve, TSA regenerates the TSA put on flare line and sets fire
Torch valve is automatically opened up, until pressure release is to 0barg.
Compared with prior art, the present invention has advantages below and beneficial effect：
First, increase after pressure release automatic regulating valve, to being effectively protected that the system pressure of recycle compressor is carried out, will not
Fluctuation interference is produced to system pressure.
2nd, it is safe and reliable：Because newly-increased TSA blowdown lines are provided with pressure release hand valve and pressure release automatic regulating valve, therefore will not
Impact is produced on the pressure of synthesis gas isolation of purified system.System media will not occur under normal circumstances to collaborate mutually.
3rd, environmental protection：Because the medium of TSA itself is CO and H2And micro CH4, the phase if all putting torch burning
When in CO can be produced2Discharge, pollutes to air, and present invention employs the mode of recycling.
4th, it is easy to operate：System is provided with releasing pressure automatically step, it is not necessary to artificially go operation.
Description of the drawings
Fig. 1 is HYCO synthesis gas isolation of purified system structure diagram of the present invention.
Label in figure：1 is HYCO raw material of synthetic gas pipelines, and 2 is a TSA adsorption tanks, and 3 is the 2nd TSA adsorption tanks, and 4 are
Flare line is put in TSA regeneration, and 5 is TSA blowdown lines, and 6 is that TSA regenerates N2Inlet line, 7 is pressure release hand valve, and 8 is that pressure release is automatic
Regulating valve, 9 is PSA adsorption tanks, and 10 is PSA resolution gas surge tanks, and 11 is knockout drum, and 12 is H2Product pipeline, 13 is to follow
One section of suction line of ring compressor, 14 be two sections of suction lines of recycle compressor, 15 be three sections of suction lines of recycle compressor, 16
For four sections of outlet lines of recycle compressor, 17 is check valve, and 18 is ice chest, and 19 is first circulation air compressor, and 20 follow for second
Ring air compressor, 21 is the 3rd recycle gas compressor, and 22 is the 4th recycle gas compressor, and 23 is four sections of inlet tubes of recycle compressor
Line.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in detail with specific embodiment.
Embodiment
It is a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, as shown in figure 1, including TSA adsorption tanks,
Ice chest 18, PSA adsorption tanks 9 and PSA resolution gas surge tank 10, TSA adsorption tanks are connected with HYCO raw material of synthetic gas pipeline 1, are used for
H in removing unstripped gas2O and CO2, knockout drum 11 is provided with ice chest 18, the entrance of knockout drum 11 is exported with TSA adsorption tanks
Connection, using CO, H2、N2、CH4It is different by CO in synthesis gas and H with the boiling point of the gas such as AR2Separate, CO is added by CO compressors
Output after pressure, the tail gas of generation then is put to torch burning, H2It is passed through PSA adsorption tanks 9 to purify, PSA adsorption tanks 9 divide with gas-liquid
It is connected from the outlet of tank 11, to H2Purified, PSA resolution gas surge tank 10：It is connected with PSA adsorption tanks 9, also regenerates N including TSA2
Inlet line 6, the regeneration of TSA blowdown lines 5, TSA put flare line 4 and recycle gas compressor, TSA regeneration N2Inlet line 6 with
TSA adsorption tanks are connected, for passing through N to TSA adsorption tanks2The H that heat and will adsorb2O and CO2Again remove, TSA regeneration is set fire
Torch pipe line 4 is connected with TSA adsorption tanks, and TSA blowdown lines 5 are put flare line 4 and drawn from TSA regeneration, and and recycle gas compressor
Between, the H that TSA adsorption tanks are removed2O and CO2Recycle gas compressor is conveyed to, recycle gas compressor is also buffered with PSA resolution gas
Tank 10 is connected, and reclaims the resolution gas in PSA resolution gas surge tank 10, recycle gas compressor outlet and HYCO raw material of synthetic gas pipelines
1 is connected, the H that TSA adsorption tanks are removed2O and CO2And the resolution gas in resolution gas surge tank 10 are back to HYCO synthesis gas original
Expects pipe line 1.
TSA adsorption tanks are provided with altogether two, respectively a TSA adsorption tanks 2 and the 2nd TSA adsorption tanks 3, TSA absorption
Tank 2 is arranged in parallel with the 2nd TSA adsorption tanks 3, and a TSA adsorption tanks 2 and the 2nd TSA adsorption tanks 3 are connected on HYCO conjunctions simultaneously
Into in gas feed line 1, TSA regeneration N2Inlet line 6 is connected with a TSA adsorption tanks 2 and the 2nd TSA adsorption tanks 3 simultaneously,
TSA regeneration puts flare line 4 while being connected with a TSA adsorption tanks 2 and the 2nd TSA adsorption tanks 3.
Connecting tube and stop valve are set between the first TSA adsorption tanks 2 and the 2nd TSA adsorption tanks 3 so that a TSA adsorbs
Tank 2 is communicated with only one of which in the 2nd TSA adsorption tanks 3 with HYCO raw material of synthetic gas pipeline 1.
Recycle gas compressor has four sections, is circulated by first circulation air compressor 19, second circulation air compressor the 20, the 3rd
Air compressor 21 and the series connection formation of the 4th recycle gas compressor 22, first circulation air compressor 19 and second circulation air compressor 20
Between by two sections of suction lines 14 of recycle compressor be connected, the recycle gas compressor 21 of second circulation air compressor 20 and the 3rd it
Between by three sections of suction lines 15 of recycle compressor be connected, between the 3rd recycle gas compressor 21 and the 4th recycle gas compressor 22
It is connected by four sections of suction lines 23 of recycle compressor, PSA resolution gas surge tank 10 passes through one section of suction line of recycle compressor
13 are connected with the entrance of first circulation air compressor 19, and TSA blowdown lines 5 are put flare line 4 and drawn from TSA regeneration, and connect
To on three sections of suction lines 15 of recycle compressor, the outlet of the 4th recycle gas compressor 22 passes through four sections of outlet lines of recycle compressor
16 are connected with HYCO raw material of synthetic gas pipeline 1.Check valve 17, check valve 17 are provided with four sections of outlet lines 16 of recycle compressor
Flow to is that the outlet of the 4th recycle gas compressor 22 is flowed to HYCO raw material of synthetic gas pipeline 1.It is provided with TSA blowdown lines 5 and lets out
Pressure hand valve 7 and pressure release automatic regulating valve 8.
PSA adsorption tanks 9 are exported and H2Product pipeline 12 connects.TSA regeneration is put and be provided with flare line 4 torch valve of setting fire
Door.
TSA is temperature inversion absorption, and a TSA adsorption tanks 2 and the normal temperature of the 2nd TSA adsorption tanks 3 are lower 30 DEG C, raw material
H in gas2O and CO2Can be in adsorbent A l2O3In the presence of adsorb, the H at 240 DEG C of the condition of high temperature2O and CO2Can be from adsorbent
In it is detached, when the previous tank adsorption saturation in a TSA adsorption tanks 2 and the 2nd TSA adsorption tanks 3, previous tank is cut
Go out system, under 22barg states, a pipeline is newly installed in the process in pressure release to 2barg, and from 22barg pressure release is started,
By pressure release hand valve 7 and the pressure release of pressure release automatic regulating valve 8 to 9barg, pressure release hand valve 7 and pressure release automatic regulating valve 8 are then shut off,
And the torch valve emptying of setting fire that TSA regeneration is put on flare line 4 is opened, and it is 0barg until adsorbing pressure tank, use N2Through N2Plus
Hot device is heated to 280 DEG C, and regenerates N by TSA2Inlet line 6 enters a TSA adsorption tanks 2 or the 2nd TSA adsorption tanks 3, makes
H2O and CO2Again remove, removed H2O and CO2Adsorption tanks cut system again and come into operation, continue to adsorb the H in raw material2O and
CO2。
This part gas is caused three sections of suction lines 15 of recycle compressor, HYCO circulation pressures by the present invention during step-down
Four sections of outlets of contracting machine are connected by four sections of outlet lines 16 of recycle compressor with HYCO raw material of synthetic gas pipeline 1, and profit again
Further purified with the waste gas of this part.
In the present invention, TSA blowdown lines 5 are put from TSA regeneration and drawn on flare line 4, and increase a pressure release and adjust automatically
Save valve 8 to control the speed of pressure release, to ensure the normal operation of recycle compressor.
In the present invention, TSA blowdown lines 5 bear pressure 40barg, and line size is 1 cun, and material is C steel.
In the present invention, TSA blowdown lines 5 are provided with pressure release hand valve 7 and pressure release automatic regulating valve 8, it is to avoid in the feelings that do not come into operation
Under condition, two systems pressure is mutually gone here and there.
HYCO synthesis gas isolation of purified System Working Principle of the present invention is：
1st, the incipient stage is regenerated in TSA, TSA absorption pressure tanks are 22barg, are now operated, by TSA absorption
Tank is kept apart from HYCO raw material of synthetic gas pipelines, and TSA pressure releases have two lines road, is all the way torch of setting fire, and is all the way to follow
Ring compressor.
2nd, HYCO recycle compressors are four sections of reciprocating-piston compressors, and one section of entrance has what PSA was parsed
2barg low pressure resolution gas are forced into 3.6barg into HYCO recycle compressors, and after two sections of pressurizations, outlet pressure is
7.6barg, after three sections of pressurizations, outlet pressure 14.9barg, after four sections of pressurizations, outlet pressure is 23.4barg, and four sections go out
Mouth is connected to HYCO raw material of synthetic gas pipelines, is purified again.
3rd, relief valve starts pressure release, and system is from 22barg pressure releases to 9barg.Control valve opening is slowly opened according to pressure.
Until 9barg, system is automatically switched off after regulating valve, and by the closing of pressure release hand valve, TSA regenerates the TSA put on flare line and sets fire
Torch valve is automatically opened up, until pressure release is to 0barg.
The above-mentioned description to embodiment is that invention is understood that and used for ease of those skilled in the art.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel announcement of the invention, the improvement made without departing from scope and modification all should be the present invention's
Within protection domain.
Claims (8)
1. it is a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, including：
TSA adsorption tanks：Be connected with HYCO raw material of synthetic gas pipelines (1), for removing unstripped gas in H2O and CO2,
Ice chest (18)：Knockout drum (11) is inside provided with, knockout drum (11) entrance is connected with the outlet of TSA adsorption tanks, will close
The CO and H in gas2Separate, CO is by output after the pressurization of CO compressors, H2PSA adsorption tanks (9) purification is passed through,
PSA adsorption tanks (9)：It is connected with knockout drum (11) outlet, to H2Purified,
PSA resolution gas surge tanks (10)：It is connected with PSA adsorption tanks (9),
Characterized in that, also including that TSA regenerates N2Flare line (4) is put in inlet line (6), TSA blowdown lines (5), TSA regeneration
And recycle gas compressor,
Described TSA regeneration N2Inlet line (6) is connected with TSA adsorption tanks, for passing through N to TSA adsorption tanks2Heat and will inhale
Attached H2O and CO2Again remove, described TSA regeneration is put flare line (4) and is connected with TSA adsorption tanks,
Described TSA blowdown lines (5) put flare line (4) extraction from TSA regeneration, and between recycle gas compressor, by TSA
The H of adsorption tanks removing2O and CO2It is conveyed to recycle gas compressor,
Described recycle gas compressor is also connected with PSA resolution gas surge tanks (10), reclaims in PSA resolution gas surge tanks (10)
Resolution gas, described recycle gas compressor outlet is connected with HYCO raw material of synthetic gas pipelines (1), the H that TSA adsorption tanks are removed2O
And CO2And the resolution gas in resolution gas surge tank (10) are back to HYCO raw material of synthetic gas pipelines (1).
2. it is according to claim 1 a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, its feature
It is that described TSA adsorption tanks are provided with altogether two, a respectively TSA adsorption tanks (2) and the 2nd TSA adsorption tanks (3) are described
A TSA adsorption tanks (2) be arranged in parallel with the 2nd TSA adsorption tanks (3), and described TSA adsorption tanks (2) and second
TSA adsorption tanks (3) are while be connected on HYCO raw material of synthetic gas pipelines (1), described TSA regeneration N2Inlet line (6) while
It is connected with a TSA adsorption tanks (2) and the 2nd TSA adsorption tanks (3), described TSA regeneration puts flare line (4) while with first
TSA adsorption tanks (2) and the 2nd TSA adsorption tanks (3) connect.
3. it is according to claim 2 a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, its feature
It is that connecting tube and stop valve are set between described TSA adsorption tanks (2) and the 2nd TSA adsorption tanks (3) so that first
TSA adsorption tanks (2) are communicated with only one of which in the 2nd TSA adsorption tanks (3) with HYCO raw material of synthetic gas pipelines (1).
4. it is according to claim 1 a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, its feature
Be that described recycle gas compressor has four sections, by first circulation air compressor (19), second circulation air compressor (20),
3rd recycle gas compressor (21) and the series connection of the 4th recycle gas compressor (22) are formed, described first circulation air compressor (19)
It is connected by two sections of suction lines (14) of recycle compressor between second circulation air compressor (20), described second circulation gas
It is connected by three sections of suction lines (15) of recycle compressor between compressor (20) and the 3rd recycle gas compressor (21), it is described
Pass through four sections of suction lines (23) of recycle compressor between 3rd recycle gas compressor (21) and the 4th recycle gas compressor (22)
It is connected, described PSA resolution gas surge tanks (10) is contracted by one section of suction line (13) of recycle compressor and first circulation air pressure
The entrance of machine (19) is connected, and described TSA blowdown lines (5) put flare line (4) extraction from TSA regeneration, and are connected to circulation
On three sections of suction lines (15) of compressor, described the 4th recycle gas compressor (22) outlet is by four sections of outlets of recycle compressor
Pipeline (16) is connected with HYCO raw material of synthetic gas pipelines (1).
5. it is according to claim 4 a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, its feature
It is that check valve (17) is provided with described four sections of outlet lines (16) of recycle compressor, described check valve (17) flow direction
For the 4th recycle gas compressor (22) outlet flow direction to HYCO raw material of synthetic gas pipelines (1).
6. it is according to claim 4 a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, its feature
It is that pressure release hand valve (7) and pressure release automatic regulating valve (8) are provided with described TSA blowdown lines (5).
7. it is according to claim 1 a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, its feature
It is that described PSA adsorption tanks (9) are exported and H2Product pipeline (12) connects.
8. it is according to claim 1 a kind of to include the HYCO synthesis gas isolation of purified systems that waste gas circulation is utilized, its feature
It is that described TSA regeneration to be put and be provided with torch valve of setting fire on flare line (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180835.5A CN106621696A (en) | 2016-12-20 | 2016-12-20 | HYCO synthetic gas separation and purification system with internal waste gas recycling |
Applications Claiming Priority (1)
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