CN206872424U - A kind of processing system of low pure hydrogen - Google Patents
A kind of processing system of low pure hydrogen Download PDFInfo
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- CN206872424U CN206872424U CN201720671859.4U CN201720671859U CN206872424U CN 206872424 U CN206872424 U CN 206872424U CN 201720671859 U CN201720671859 U CN 201720671859U CN 206872424 U CN206872424 U CN 206872424U
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Abstract
A kind of processing system of low pure hydrogen, including：First surge tank, the air inlet of first surge tank are connected with low pure hydrogen air inlet pipeline；The desulfurizing tower that air inlet is connected with the gas outlet of first surge tank；The liquid separation tank that air inlet is connected with the gas outlet of the desulfurizing tower；The first coalescer that air inlet is connected with the gas outlet of the liquid separation tank, first coalescer are provided with the first cross-line；The second surge tank that air inlet is connected with the gas outlet of first coalescer；The compression set that air inlet is connected with the gas outlet of second surge tank；What air inlet was connected with the gas outlet of the compression set removes flow container；The second coalescer that air inlet is connected with the gas outlet except flow container, second coalescer are provided with the second cross-line；The pressure-swing absorption apparatus that air inlet is connected with the gas outlet of second coalescer, the first gas outlet of the pressure-swing absorption apparatus are connected with High Purity Hydrogen recovery pipe.The processing system can effectively reclaim the low pure hydrogen of separation, obtain high-purity hydrogen.
Description
Technical field
Technical field of petrochemical industry is the utility model is related to, is to be related to a kind of processing system of low pure hydrogen more specifically.
Background technology
At present, in the device of petroleum chemical industry, diesel oil hydrogenation, gasoline hydrogenation, wax oil hydrogenation, heavy-oil hydrogenation are contour to be contained
The gas separated by high pressure separator of hydrogen and low point of gas, and the dry gas seals of steam turbine, various pressure and purity is satisfactory sends gas outside all
Need to be handled, the mixed gas of these gases is referred to as " low pure hydrogen ".
In today of petroleum chemical industry competition, petrochemical enterprise is all farthest using all
Resource energy-saving and emission-reduction.In the prior art, diesel oil, gasoline, wax oil and heavy-oil hydrogenation send gas separated by high pressure separator outside and low point of gas typically passes through
Catalysis and coking plant handled, after second-compressed, as catalysis drying gas and coking dry gas be delivered to fuel gas pipe network or
Raw material use is done to hydrogen manufacturing.The hydrogen purity of this portion gas is higher, and hydrogen calorific value is low, and the purity height of hydrogen plays anti-make to hydrogen manufacturing
With causing the cost of oil play higher.
The hydrogen in low pure hydrogen how is effectively utilized, the hydrogen component in low pure hydrogen and other components are carried out higher
The separation of degree, so as to optimize the gas configuration of full factory, developing a kind of processing system of low pure hydrogen turns into people in the art
Member's technical problem urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of processing system of low pure hydrogen, using the utility model
The processing system of offer can effectively reclaim the low pure hydrogen of separation, obtain high-purity hydrogen.
The utility model provides a kind of processing system of low pure hydrogen, including：
First surge tank, the air inlet of first surge tank are connected with low pure hydrogen air inlet pipeline；
The desulfurizing tower that air inlet is connected with the gas outlet of first surge tank；
The liquid separation tank that air inlet is connected with the gas outlet of the desulfurizing tower；
The first coalescer that air inlet is connected with the gas outlet of the liquid separation tank, first coalescer be provided with first across
Line；
The second surge tank that air inlet is connected with the gas outlet of first coalescer；
The compression set that air inlet is connected with the gas outlet of second surge tank；
What air inlet was connected with the gas outlet of the compression set removes flow container；
The second coalescer that air inlet is connected with the gas outlet except flow container, second coalescer be provided with second across
Line；
The pressure-swing absorption apparatus that air inlet is connected with the gas outlet of second coalescer, the of the pressure-swing absorption apparatus
One gas outlet is connected with High Purity Hydrogen recovery pipe.
Preferably, the low pure hydrogen air inlet pipeline is provided with first flowmeter and the first temperature transmitter.
Preferably, in addition to：
3rd surge tank, the lye import of the 3rd surge tank are connected with alkali lye feeding pipe；
The conveying device that lye import is connected with the lye export of the 3rd surge tank, the alkali lye of the conveying device go out
Mouth is connected with the lye import of desulfurizing tower.
Preferably, the conveying device is lye pump.
Preferably, the desulfurizing tower is provided with lye export, and the lye export of the desulfurizing tower is connected with alkali lye transfer pipeline；
The liquid separation tank is provided with lye export, and the lye export of the liquid separation tank is connected with the alkali lye transfer pipeline；
First coalescer is provided with lye export, the lye export of first coalescer and the alkali lye transfer pipeline
It is connected；
Second surge tank is provided with lye export, the lye export of second surge tank and the alkali lye transfer pipeline
It is connected.
Preferably, the compression set is compressor.
Preferably, the air inlet of the compression set is provided with Stress control transmitter, second flowmeter and second temperature and become
Send device；
The gas outlet of the compression set is provided with condenser.
Preferably, described to be exported except flow container provided with light oil, the light oil except flow container exports to be connected with light oil transfer pipeline；
Second coalescer exports provided with light oil, light oil outlet and the light oil transfer pipeline of second coalescer
It is connected.
Preferably, the pressure-swing absorption apparatus is additionally provided with the second gas outlet；Second gas outlet of the pressure-swing absorption apparatus
It is connected with fuel gas pipe network.
The utility model provides a kind of processing system of low pure hydrogen, including：First surge tank, first surge tank
Air inlet is connected with low pure hydrogen air inlet pipeline；The desulfurizing tower that air inlet is connected with the gas outlet of first surge tank；Air inlet
The liquid separation tank being connected with the gas outlet of the desulfurizing tower；The first coalescer that air inlet is connected with the gas outlet of the liquid separation tank,
First coalescer is provided with the first cross-line；The second surge tank that air inlet is connected with the gas outlet of first coalescer；Enter
The compression set that gas port is connected with the gas outlet of second surge tank；Air inlet is connected with the gas outlet of the compression set
Except flow container；The second coalescer that air inlet is connected with the gas outlet except flow container, second coalescer are provided with the second cross-line；
The pressure-swing absorption apparatus that air inlet is connected with the gas outlet of second coalescer, the first gas outlet of the pressure-swing absorption apparatus
It is connected with High Purity Hydrogen recovery pipe.The processing system of low pure hydrogen provided by the utility model, the low pure hydrogen of separation can be effectively reclaimed,
Obtain high-purity hydrogen.
Brief description of the drawings
Fig. 1 is the structural representation of the processing system for the low pure hydrogen that the utility model embodiment provides；
Fig. 2 is the structural representation of the processing system for the low pure hydrogen that the utility model embodiment 1 provides.
Embodiment
Below in conjunction with the utility model embodiment, the technical solution of the utility model is clearly and completely described,
Obviously, described embodiment is only the utility model part of the embodiment, rather than whole embodiments.Based on this practicality
Embodiment in new, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of the utility model protection.
The utility model provides a kind of processing system of low pure hydrogen, including：
First surge tank, the air inlet of first surge tank are connected with low pure hydrogen air inlet pipeline；
The desulfurizing tower that air inlet is connected with the gas outlet of first surge tank；
The liquid separation tank that air inlet is connected with the gas outlet of the desulfurizing tower；
The first coalescer that air inlet is connected with the gas outlet of the liquid separation tank, first coalescer be provided with first across
Line；
The second surge tank that air inlet is connected with the gas outlet of first coalescer；
The compression set that air inlet is connected with the gas outlet of second surge tank；
What air inlet was connected with the gas outlet of the compression set removes flow container；
The second coalescer that air inlet is connected with the gas outlet except flow container, second coalescer be provided with second across
Line；
The pressure-swing absorption apparatus that air inlet is connected with the gas outlet of second coalescer, the of the pressure-swing absorption apparatus
One gas outlet is connected with High Purity Hydrogen recovery pipe.
Referring to Fig. 1, Fig. 1 is the structural representation of the processing system for the low pure hydrogen that the utility model embodiment provides, its
In, 1 is the first surge tank, and 2 be the air inlet of the first surge tank, and 3 be low pure hydrogen air inlet pipeline, 4 for desulfurizing tower air inlet, 5
It is desulfurizing tower for the gas outlet of the first surge tank, 6,7 be the air inlet of liquid separation tank, and 8 be the gas outlet of desulfurizing tower, and 9 be liquid separation tank,
10 be the air inlet of the first coalescer, and 11 be the gas outlet of liquid separation tank, and 12 be the first coalescer, and 13 be the first cross-line, and 14 be the
The air inlet of two surge tanks, 15 be the gas outlet of the first coalescer, and 16 be the second surge tank, and 17 be the air inlet of compression set,
18 be the gas outlet of the second surge tank, and 19 be compression set, and 20 be except the air inlet of flow container, and 21 be the gas outlet of compression set,
22 be except flow container, and 23 be the air inlet of the second coalescer, and 24 be that 26 be second except the gas outlet of flow container, 25 is the second coalescer
Cross-line, 27 be the air inlet of pressure-swing absorption apparatus, and 28 be the gas outlet of the second coalescer, and 29 be pressure-swing absorption apparatus, and 30 be change
The first gas outlet of adsorbent equipment is pressed, 31 be High Purity Hydrogen recovery pipe.
In the utility model, the processing system of the low pure hydrogen includes the first surge tank (1), desulfurizing tower (6), liquid separation tank
(9), the first coalescer (12), the second surge tank (16), compression set (19), except flow container (22), the second coalescer (25) and become
Press adsorbent equipment (29).
In the utility model, first surge tank (1) is provided with air inlet (2) and gas outlet (5)；Wherein, it is described enter
Gas port (2) is connected with low pure hydrogen air inlet pipeline (3), slow for the low pure hydrogen in low pure hydrogen air inlet pipeline (3) to be delivered into first
Rush tank (1)；The gas outlet (5) is used to discharge low pure hydrogen；Meanwhile the gas outlet (5) is preferably also provided with torch line outlet of setting fire,
For when pressure requires more than control in gas outlet (5), torch of setting fire automatically to reduce processing load；The torch line outlet of setting fire is excellent
Choosing is additionally provided with valve.In the utility model, first surge tank (1) is used to low pure hydrogen entering row buffering voltage stabilizing.
In the utility model, first surge tank (1) is preferably also provided with outlet of sewer, far transmission level meter (LI), pressure
Power control transmitter (PC) and torch line of setting fire outlet；Wherein, the outlet of sewer is used to discharge caused by the first surge tank (1)
Sewage；The far transmission level meter (LI) is used to show the liquid level in the first surge tank (1)；The Stress control transmitter (PC) is used
Pressure in the first surge tank of control (1)；The torch line of setting fire export in the first surge tank (1) pressure exceed control
It is required that when, torch of setting fire automatically reduces processing load.
In the utility model, the low pure hydrogen air inlet pipeline (3) is preferably provided with first flowmeter and the first temperature pick-up
Device；Wherein, the first flowmeter is used to control low pure hydrogen flowrate；First temperature transmitter is used to control low pure hydrogen temperature
Degree.In the utility model, the low pure hydrogen air inlet pipeline (3) is used to collect the low pure hydrogen of each device.
In the utility model, the desulfurizing tower (6) is provided with air inlet (4) and gas outlet (8)；Wherein, the air inlet
(4) gas outlet (5) with first surge tank (1) is connected, for the low pure hydrogen in the first surge tank (1) to be delivered into desulfurization
Tower (6)；The air inlet (4) is preferably also provided with valve；The gas outlet (8) is used to discharge low pure hydrogen；Meanwhile the gas outlet
(8) temperature transmitter is preferably also provided with, for controlling low pure hydrogen temperature.In the utility model, the desulfurizing tower (6) is used to take off
Except the H in low pure hydrogen2S。
In the utility model, the desulfurizing tower (6) is preferably also provided with lye export, the liquid level gauge (LC) with control, alkali
Liquid import and torch line of setting fire outlet；Wherein, the lye export of the desulfurizing tower (6) is connected with alkali lye transfer pipeline, for discharging
Alkali lye after desulfurization；The lye export of the desulfurizing tower (6) is preferably also provided with valve；The liquid level gauge (LC) of the band control is used for
Liquid level in display and control desulfurizing tower (6)；The lye import of the desulfurizing tower (6) is used to alkali lye being delivered to desulfurizing tower (6)；
The torch line of setting fire is exported for when pressure requires more than control in desulfurizing tower (6), torch of setting fire automatically to reduce processing load.
In the utility model, alkali lye transfer pipeline is preferably provided with valve.In the utility model, alkali lye transfer pipeline is used
In recovery alkali lye.
In the utility model, the processing unit preferably also includes：
3rd surge tank, the lye import of the 3rd surge tank are connected with alkali lye feeding pipe；
The conveying device that lye import is connected with the lye export of the 3rd surge tank, the alkali lye of the conveying device go out
Mouth is connected with the lye import of desulfurizing tower.
In the utility model, the 3rd surge tank is provided with lye import and lye export；Wherein, the 3rd buffering
The lye import of tank is connected with alkali lye feeding pipe, for the alkali lye in alkali lye feeding pipe to be delivered into the second surge tank；Institute
The lye export for stating the 3rd surge tank is used to discharge alkali lye.In the utility model, the 3rd surge tank is used to enter alkali lye
Row buffering voltage stabilizing.In the utility model, the alkali lye can remove the H in low pure hydrogen2S, preferably monoethanolamine.
In the utility model, the 3rd surge tank is preferably also provided with the liquid level gauge (LC) with control, Stress control becomes
Send device (PC) and torch line of setting fire exports；Wherein, the liquid level gauge (LC) of the band control is used to show and control in the 3rd surge tank
Liquid level；The Stress control transmitter (PC) is used to control pressure in the 3rd surge tank, and the torch line of setting fire, which exports, to be used for
When pressure requires more than control in 3rd surge tank, torch of setting fire automatically reduces processing load.
In the utility model, the alkali lye feeding pipe is preferably provided with valve.In the utility model, the alkali lye enters
Expects pipe road is used to convey alkali lye.
In the utility model, the conveying device is provided with lye import and lye export；Wherein, the conveying device
Lye import is connected with the lye export of the 3rd surge tank, for alkali lye to be delivered into conveying device；The conveying device
Lye export be connected with the lye import of desulfurizing tower (6), for alkali lye to be delivered into desulfurizing tower (6)；The conveying device
Lye export is preferably provided with valve.In the utility model, the conveying device is preferably lye pump, for the conveying for alkali lye
Power is provided.
In the utility model, the liquid separation tank (9) is provided with air inlet (7) and gas outlet (11)；Wherein, the air inlet
(7) it is connected with the gas outlet (8) of the desulfurizing tower (6), for the low pure hydrogen in desulfurizing tower (6) to be delivered into liquid separation tank (9)；Institute
Gas outlet (11) is stated to be used to discharge low pure hydrogen.In the utility model, the liquid separation tank (9) is used to carry out gas-liquid separation.
In the utility model, the liquid separation tank (9) is preferably also provided with lye export and the liquid level gauge (LC) with control；Its
In, the lye export of the liquid separation tank (9) is connected with the alkali lye transfer pipeline, for discharging the alkali lye after gas-liquid separation；Institute
The lye export for stating liquid separation tank (9) is preferably also provided with valve；The liquid level gauge (LC) of the band control is used to showing and controlling liquid separation
Liquid level in tank (9).
In the utility model, first coalescer (12) is provided with air inlet (10), gas outlet (15) and the first cross-line
(13)；Wherein, the air inlet (10) of first coalescer (12) is connected with the gas outlet (11) of the liquid separation tank (9), is used for
Low pure hydrogen in liquid separation tank (9) is delivered to the first coalescer (12)；The gas outlet (15) of first coalescer (12) is used for
Discharge low pure hydrogen；First cross-line (13) the connection air inlet (10) and gas outlet (15), the first coalescence is cut out for the short time
Device (12) changes filter core；First cross-line (13) is preferably provided with valve.In the utility model, first coalescer (12)
For passing through the impurity such as the alkali lye in the low pure hydrogen of filter element filtering.
In the utility model, first coalescer (12) is preferably also provided with lye export and live liquid level gauge (LG)；
Wherein, the lye export of first coalescer (12) is connected with alkali lye transfer pipeline, for discharging the alkali lye after coalescing；It is described
Live liquid level gauge (LG) is used to show the liquid level in the first coalescer (12).
In the utility model, second surge tank (16) is provided with air inlet (14) and gas outlet (18)；Wherein, it is described
Air inlet (14) is connected with the gas outlet (15) of first coalescer (12), for by the low pure hydrogen in the first coalescer (12)
It is delivered to the second surge tank (16)；The gas outlet (18) is used to discharge low pure hydrogen；Meanwhile the gas outlet (18) preferably also sets
Torch line of setting fire exports, for when pressure requires more than control in gas outlet (18), torch of setting fire automatically to reduce processing load.
In the utility model, second surge tank (16) is used to low pure hydrogen entering row buffering voltage stabilizing.
In the utility model, second surge tank (16) be preferably also provided with lye export, far transmission level meter (LI) and
Torch line of setting fire exports；Wherein, the lye export of second surge tank (16) is connected with the alkali lye transfer pipeline, for discharging
Alkali lye；The far transmission level meter (LI) is used to show liquid level in the second surge tank (16)；The torch line of setting fire is exported for the
When pressure requires more than control in two surge tanks (16), torch of setting fire automatically reduces processing load.
In the utility model, the compression set (19) is provided with air inlet (17) and gas outlet (21)；Wherein, it is described enter
Gas port (17) is connected with the gas outlet (18) of second surge tank (16), for the low pure hydrogen in the second surge tank (16) is defeated
Deliver to compression set (19)；The air inlet (17) is preferably provided with Stress control transmitter (PC), second flowmeter and the second temperature
Spend transmitter；Wherein, the Stress control transmitter (PC) is used to control the pressure in air inlet (17)；The second flowmeter
For controlling low pure hydrogen flowrate；The second temperature transmitter is used to control low pure hydrogen temperature；The gas outlet (21) is used to arrange
Go out low pure hydrogen；The gas outlet (21) is preferably provided with condenser；The condenser is used to condense the low pure hydrogen after compression.
In the utility model, the compression set (19) is used to be compressed low pure hydrogen；Preferably it is compressor；Institute
State compressor and be provided with motor special, power is provided for compression.
It is described except flow container (22) is provided with air inlet (20) and gas outlet (24) in the utility model；Wherein, the air inlet
Mouth (20) is connected with the gas outlet (21) of the compression set (19), for the low pure hydrogen after compression to be delivered to except flow container
(22)；The air inlet (20) is preferably also provided with distance-transmission pressure gauge (PI) and temperature transmitter (TI)；Wherein, the teletransmission pressure
Table (PI) is used to show the pressure in air inlet (20)；The temperature transmitter (TI) controls low pure hydrogen temperature；The gas outlet
(24) it is used to discharge low pure hydrogen.It is described except flow container (22) is used to be separated in the light oil in low pure hydrogen in the utility model.
It is described except flow container (22) is preferably also provided with light oil outlet, far transmission level meter (LI), pressure control in the utility model
Transmitter (PC) processed and torch line of setting fire outlet；Wherein, the light oil outlet except flow container (22) is connected with light oil transfer pipeline, uses
In discharge light oil；The far transmission level meter (LI) is used to show the liquid level removed in flow container (22)；The Stress control transmitter
(PC) it is used to control the pressure removed in flow container (22)；The torch line of setting fire export in except flow container (22) pressure exceed control
It is required that when, torch of setting fire automatically reduces processing load.
In the utility model, the light oil transfer pipeline is used to reclaim light oil, is directly connected with contaminated-oil basin.
In the utility model, second coalescer (25) is provided with air inlet (23), gas outlet (28) and the second cross-line
(26)；Wherein, the air inlet (23) of second coalescer (25) is connected with the gas outlet (24) except flow container (22), is used for
The low pure hydrogen removed in flow container (22) is delivered to the second coalescer (25)；The gas outlet (28) of second coalescer (25) is used for
Discharge low pure hydrogen；Meanwhile the gas outlet (28) is preferably also provided with setting fire the outlet of torch line, in gas outlet (28) pressure surpass
When crossing control and requiring, torch of setting fire automatically reduces processing load；Second cross-line (26) the connection air inlet (23) and gas outlet
(28), cut out the second coalescer (25) for the short time and change filter core；Second cross-line (26) is preferably provided with valve.In this reality
In new, second coalescer (25) is used to pass through the light oil in the low pure hydrogen of filter element filtering.
In the utility model, second coalescer (25) is preferably also provided with light oil outlet and live liquid level gauge (LG)；
Wherein, the light oil outlet of second coalescer (25) is connected with light oil transfer pipeline, for discharging light oil；The live liquid level
(LG) is counted to be used to show the liquid level in the second coalescer (25).
In the utility model, the pressure-swing absorption apparatus (29) is provided with air inlet (27) and the first gas outlet (30)；Its
In, the air inlet (27) is connected with the gas outlet (28) of second coalescer (25), for by the second coalescer (25)
Low pure hydrogen be delivered to pressure-swing absorption apparatus (29)；First gas outlet (30) is used to discharge High Purity Hydrogen；First outlet
Mouth (30) is preferably also provided with valve.In the utility model, the pressure-swing absorption apparatus (29) is used to carry out pressure-variable adsorption, obtains
High Purity Hydrogen.
In the utility model, the pressure-swing absorption apparatus (29) is preferably also provided with the second gas outlet；The pressure-variable adsorption
Second gas outlet of device (29) is connected with fuel gas pipe network, for the impurity obtained after pressure-variable adsorption gas to be delivered into fuel gas
Pipe network carries out subsequent applications；Second gas outlet of the pressure-swing absorption apparatus (29) is preferably provided with valve.
The course of work of the processing system of low pure hydrogen provided by the utility model is as follows：
First, the low pure hydrogen of each device is collected by low pure hydrogen air inlet pipeline (3), and voltage stabilizing is buffered through the first surge tank (1)
Afterwards, into desulfurizing tower (6), carry out fully contacting the H removed in low pure hydrogen with alkali lye2S；
Then, low pure hydrogen buffers successively after liquid separation tank (9) and the first coalescer (12) fully separate with alkali lye through second
After tank (16) buffering voltage stabilizing, it is compressed into compression set (19)；
Finally, low pure hydrogen is successively after fully light oil is separated with the second coalescer (25) except flow container (22), into transformation
Adsorbent equipment (29) carries out pressure-variable adsorption, obtains High Purity Hydrogen.
The utility model provides a kind of processing system of low pure hydrogen, including：First surge tank, first surge tank
Air inlet is connected with low pure hydrogen air inlet pipeline；The desulfurizing tower that air inlet is connected with the gas outlet of first surge tank；Air inlet
The liquid separation tank being connected with the gas outlet of the desulfurizing tower；The first coalescer that air inlet is connected with the gas outlet of the liquid separation tank,
First coalescer is provided with the first cross-line；The second surge tank that air inlet is connected with the gas outlet of first coalescer；Enter
The compression set that gas port is connected with the gas outlet of second surge tank；Air inlet is connected with the gas outlet of the compression set
Except flow container；The second coalescer that air inlet is connected with the gas outlet except flow container, second coalescer are provided with the second cross-line；
The pressure-swing absorption apparatus that air inlet is connected with the gas outlet of second coalescer, the first gas outlet of the pressure-swing absorption apparatus
It is connected with High Purity Hydrogen recovery pipe.The processing system of low pure hydrogen provided by the utility model, the low pure hydrogen of separation can be effectively reclaimed,
Obtain high-purity hydrogen.
In order to further illustrate the utility model, it is described in detail below by following examples.The utility model with
Low pure hydrogen used in lower embodiment is from the devices such as diesel oil hydrogenation, gasoline hydrogenation, wax oil hydrogenation, heavy-oil hydrogenation, hydrogen purity
Not less than 80%, nitrogen component is controlled within 5%, and pressure is higher than 1.2MPa.
Embodiment 1
The structural representation of the processing system for the low pure hydrogen that embodiment 1 provides is as shown in Fig. 2 wherein, 1 is the first buffering
Tank, 2 be the air inlet of the first surge tank, and 3 be low pure hydrogen air inlet pipeline, and 4 be the air inlet of desulfurizing tower, and 5 be the first surge tank
Gas outlet, 6 be desulfurizing tower, and 7 be the air inlet of liquid separation tank, and 8 be the gas outlet of desulfurizing tower, and 9 be liquid separation tank, and 10 be the first coalescer
Air inlet, 11 be the gas outlet of liquid separation tank, and 12 be the first coalescer, and 13 be the first cross-line, 14 for the second surge tank air inlet
Mouthful, 15 be the gas outlet of the first coalescer, and 16 be the second surge tank, and 17 be the air inlet of compressor, and 18 be the second surge tank
Gas outlet, 19 be compressor, and 20 be except the air inlet of flow container, and 21 be the gas outlet of compressor, and 22 be except flow container, and 23 be second poly-
The air inlet of device is tied, 24 be that 25 be the second coalescer, and 26 be the second cross-line, and 27 be pressure-swing absorption apparatus except the gas outlet of flow container
Air inlet, 28 be the gas outlet of the second coalescer, and 29 be pressure-swing absorption apparatus, and 30 be the first outlet of pressure-swing absorption apparatus
Mouthful, 31 be High Purity Hydrogen recovery pipe, and 32 be first flowmeter, and 33 be the first temperature transmitter, and 34 be the 3rd surge tank, and 35 be the
The lye import of three surge tanks, 36 be alkali lye feeding pipe, and 37 be the lye import of lye pump, and 38 be the alkali lye of the 3rd surge tank
Outlet, 39 be lye pump, and 40 be the lye export of lye pump, and 41 be the lye import of desulfurizing tower, and 42 go out for the alkali lye of desulfurizing tower
Mouthful, 43 be alkali lye transfer pipeline, and 44 be the lye export of liquid separation tank, and 45 be the lye export of the first coalescer, and 46 be second slow
The lye export of tank is rushed, 47 be Stress control transmitter, and 48 be second flowmeter, and 49 be second temperature transmitter, and 50 be condensation
Device, 51 be except the light oil of flow container exports, and 52 be light oil transfer pipeline, and 53 export for the light oil of the second coalescer, and 54 be that transformation is inhaled
Second gas outlet of adsorption device, 55 be fuel gas pipe network.
The processing of low pure hydrogen is carried out using the processing system of above-mentioned low pure hydrogen, specific work process is as follows：
(1) the low pure hydrogen of each device is collected by low pure hydrogen air inlet pipeline (3), and low by first flowmeter (32) guarantee
Pure stabilized hydrogen supply, it is 25 DEG C~40 DEG C that the first temperature transmitter (33), which controls low pure hydrogen temperature,；The low pure hydrogen is through air inlet
(2) it is stable in 0.8~1.2MPa to enter the first surge tank (1) control pressure, then is discharged through gas outlet (5), is entered by air inlet (4)
Enter desulfurizing tower (6), the H removed in low pure hydrogen is fully contacted with monoethanolamine2S；The volume of hydrogen sulfide in low pure hydrogen after desulfurization
Fraction is below 0.001%；
The monoethanolamine enters the 3rd surge tank (34) steady pressure by alkali lye feeding pipe through lye import (35), then passes through
Lye export (38) is discharged, and is conveyed under the power of lye pump (39), is taken off by lye import (41) into desulfurizing tower (6)
Sulphur, the alkali lye after desulfurization are reclaimed by lye export (42) into alkali lye transfer pipeline (43)；
(2) the low pure hydrogen after desulfurization enters liquid separation tank (9) progress alkali lye separation by gas outlet (8) through air inlet (7), its
In, the low pure hydrogen after alkali lye separation enters the first coalescer (12) through air inlet (10) by gas outlet (11) and carries out alkali lye filtering,
Alkali lye after alkali lye separation is reclaimed by lye export (44) into alkali lye transfer pipeline (43)；
Low pure hydrogen after alkali lye filtering enters the second surge tank (16) control pressure by gas outlet (15) through air inlet (14)
It is stable to be discharged in 0.8~1.2MPa, then through gas outlet (18), control low pure hydrogen pressure stable by Stress control transmitter (47)
In 0.8~1.2MPa, second flowmeter (48) ensures low pure stabilized hydrogen supply, and second temperature transmitter (49) controls low pure hydrogen temperature
Spend for 25 DEG C~40 DEG C, be compressed by air inlet (17) into compressor (19), the pressure of the low pure hydrogen after compression is
2.8MPa, discharged by gas outlet (21), and condensed by condenser (50)；
Meanwhile the alkali lye after alkali lye filtering is reclaimed by lye export (45) into alkali lye transfer pipeline (43)；Second
Alkali lye in surge tank (16) is reclaimed by lye export (46) into alkali lye transfer pipeline (43)；
(3) the low pure hydrogen after compressing is entered except flow container (22) carries out light oil separation by air inlet (20), wherein, light oil separation
Low pure hydrogen afterwards enters the second coalescer (25) through air inlet (23) by gas outlet (24) and carries out light oil filtering, after light oil filtering
The volume fraction of C5 and more than C5 components is less than or equal to 0.2% in low pure hydrogen；Light oil after light oil separation is exported (51) by light oil
Contaminated-oil basin is recycled into light oil transfer pipeline (52)；
Low pure hydrogen after light oil filtering is become by gas outlet (28) through air inlet (27) into pressure-swing absorption apparatus (29)
Pressure absorption, High Purity Hydrogen is obtained, the High Purity Hydrogen is delivered to High Purity Hydrogen recovery pipe (31) by the first gas outlet (30), completes low pure
The processing of hydrogen；
Meanwhile the light oil after light oil filtering exports (53) by light oil and is recycled to contaminated-oil basin into light oil transfer pipeline (52)；
In addition, the impurity gas that pressure-variable adsorption obtains is delivered to fuel gas pipe network (55) by the second gas outlet (54) and carried out subsequently
Using.
The processing system provided using embodiment 1 carries out the processing of low pure hydrogen, and the purity of obtained High Purity Hydrogen is 99.9%
More than, pressure is 1.8~2.6MPa, and temperature is 25~40 DEG C, CO+CO2Below total content 20ppm (0.1%=
10000ppm)；Fuel gas use is done relative to low pure hydrogen, according to benefit accounting, utilizes the utility model method 1Nm3Gas
Cost reduces by 60~80%.Meanwhile in low pure hydrogen hydrogen the rate of recovery more than 90%.
In addition, in processing system provided by the utility model static equipment life-span be 15 years, pressure-swing absorption apparatus it is good
Good service life is 10 years.
The described above of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (9)
1. a kind of processing system of low pure hydrogen, including：
First surge tank, the air inlet of first surge tank are connected with low pure hydrogen air inlet pipeline；
The desulfurizing tower that air inlet is connected with the gas outlet of first surge tank；
The liquid separation tank that air inlet is connected with the gas outlet of the desulfurizing tower；
The first coalescer that air inlet is connected with the gas outlet of the liquid separation tank, first coalescer are provided with the first cross-line；
The second surge tank that air inlet is connected with the gas outlet of first coalescer；
The compression set that air inlet is connected with the gas outlet of second surge tank；
What air inlet was connected with the gas outlet of the compression set removes flow container；
The second coalescer that air inlet is connected with the gas outlet except flow container, second coalescer are provided with the second cross-line；
The pressure-swing absorption apparatus that air inlet is connected with the gas outlet of second coalescer, the first of the pressure-swing absorption apparatus goes out
Gas port is connected with High Purity Hydrogen recovery pipe.
2. processing system according to claim 1, it is characterised in that the low pure hydrogen air inlet pipeline is provided with first flowmeter
With the first temperature transmitter.
3. processing system according to claim 1, it is characterised in that also include：
3rd surge tank, the lye import of the 3rd surge tank are connected with alkali lye feeding pipe；
The conveying device that lye import is connected with the lye export of the 3rd surge tank, the lye export of the conveying device with
The lye import of desulfurizing tower is connected.
4. processing system according to claim 3, it is characterised in that the conveying device is lye pump.
5. processing system according to claim 1, it is characterised in that the desulfurizing tower is provided with lye export, the desulfurization
The lye export of tower is connected with alkali lye transfer pipeline；
The liquid separation tank is provided with lye export, and the lye export of the liquid separation tank is connected with the alkali lye transfer pipeline；
First coalescer is provided with lye export, the lye export of first coalescer and the alkali lye transfer pipeline phase
Even；
Second surge tank is provided with lye export, the lye export of second surge tank and the alkali lye transfer pipeline phase
Even.
6. processing system according to claim 1, it is characterised in that the compression set is compressor.
7. processing system according to claim 1, it is characterised in that the air inlet of the compression set is provided with Stress control
Transmitter, second flowmeter and second temperature transmitter；
The gas outlet of the compression set is provided with condenser.
8. processing system according to claim 1, it is characterised in that it is described to be exported except flow container provided with light oil, it is described to remove liquid
The light oil outlet of tank is connected with light oil transfer pipeline；
Second coalescer exports provided with light oil, light oil outlet and the light oil transfer pipeline phase of second coalescer
Even.
9. processing system according to claim 1, it is characterised in that the pressure-swing absorption apparatus is additionally provided with the second outlet
Mouthful；Second gas outlet of the pressure-swing absorption apparatus is connected with fuel gas pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720671859.4U CN206872424U (en) | 2017-06-09 | 2017-06-09 | A kind of processing system of low pure hydrogen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720671859.4U CN206872424U (en) | 2017-06-09 | 2017-06-09 | A kind of processing system of low pure hydrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206872424U true CN206872424U (en) | 2018-01-12 |
Family
ID=61332889
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|---|---|---|---|
| CN201720671859.4U Active CN206872424U (en) | 2017-06-09 | 2017-06-09 | A kind of processing system of low pure hydrogen |
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| Country | Link |
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| CN (1) | CN206872424U (en) |
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2017
- 2017-06-09 CN CN201720671859.4U patent/CN206872424U/en active Active
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