CN209428467U - A kind of hydrofinishing improves the device of circulation hydrogen purity - Google Patents
A kind of hydrofinishing improves the device of circulation hydrogen purity Download PDFInfo
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- CN209428467U CN209428467U CN201822103157.3U CN201822103157U CN209428467U CN 209428467 U CN209428467 U CN 209428467U CN 201822103157 U CN201822103157 U CN 201822103157U CN 209428467 U CN209428467 U CN 209428467U
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Abstract
The utility model relates to the devices that a kind of hydrofinishing improves circulation hydrogen purity.Its technical solution is: including circulating hydrogen compressor entrance liquid separation tank, circulating hydrogen compressor, cold low separator, recycle hydrogen injection pipeline is connected on the left of circulating hydrogen compressor entrance liquid separation tank, pipeline, which is injected, by recycle hydrogen injects recycle hydrogen, flow control pipeline is connected with by pipeline in circulating hydrogen compressor entrance liquid separation tank top, flow control valve is equipped on flow control pipeline, the lower part of flow control pipeline connects connection pipeline, useless hydrogen regulating valve valve group is installed on connection pipeline, cold low separator is connected to by low gas-distributing pipe line in the lower part of connection pipeline, the hydrogen-cooled low point of valve that give up is equipped on low gas-distributing pipe line.The beneficial effects of the utility model are: solving the low technical problem of hydro-refining unit circulating hydrogen purity, the loss of the useless hydrogen discharge of hydrofinishing is reduced, the torch of oil plant can be extinguished, reduce environmental pollution, improve the economic benefit of oil plant.
Description
Technical field
The utility model relates to a kind of device for improving circulation hydrogen purity, in particular to a kind of hydrofinishing improves recycle hydrogen
The device of purity.
Background technique
Hydrofinishing is one of petroleum refining process, under certain temperature, pressure, hydrogen-oil ratio and space velocities, by
Sulphur, nitrogen, oxygen etc. in oil product is transformed into H2S, NH3, H2O by the effect of hydrogenation catalyst, with remove the sulphur in feedstock oil,
The impurity such as nitrogen, oxygen.Simultaneously in the catalyst by a small amount of metal retention, the process that alkene, aromatic hydrocarbons obtain plus hydrogen is saturated.Hydrogen-oil ratio
Size not only influence hydrofinishing effect, bed temperature, also related with plant energy consumption, excessive hydrogen-oil ratio will increase device energy
Consumption.The purity and the hydrogen partial pressure inside catalyst bed of recycle hydrogen have direct relation, also directly affect the size of hydrogen-oil ratio.Circulation
Hydrogen purity is too low, influences hydrofinishing effect, and wastes a large amount of power consumptions and gas consumption.The present apparatus recycles hydrogen purity master
It to be influenced by the desulfurization effect and system consumption of desulphurization of recycle hydrogen system, the general poor amine using adjustment desulphurization of recycle hydrogen system
The method guarantee circulation hydrogen purity of liquid dosage, given up by discharge unit hydrogen and the new hydrogen of supplement, increases useless hydrogen and discharges the frequency, will be a large amount of
It is a kind of waste to expensive hydrogen resources that hydrogen, which is sent to torch of setting fire,.
Summary of the invention
The purpose of this utility model provides a kind of hydrofinishing raising and follows aiming at drawbacks described above of the existing technology
The device of ring hydrogen purity solves the low technical problem of hydro-refining unit circulating hydrogen purity, and useless hydrogen and low point of gas
Enter recovery line after mixing, be recycled, the raw material after desulfurization as coking dry gas hydrogen manufacturing, it is useless to reduce hydrofinishing
The loss of hydrogen discharge, and the top of connection pipeline is parallel with flare line, torch is connected with by flare line, in flare line
On torch valve is installed, the torch of oil plant can be extinguished, reduce environmental pollution, improve the economic benefit of oil plant.
Its technical solution is: including circulating hydrogen compressor entrance liquid separation tank, circulating hydrogen compressor, cold low separator,
It is connected with recycle hydrogen injection pipeline on the left of circulating hydrogen compressor entrance liquid separation tank, injects pipeline injection circulation by recycle hydrogen
Hydrogen is connected with flow control pipeline by pipeline in circulating hydrogen compressor entrance liquid separation tank top, sets on flow control pipeline
There is flow control valve, the lower part of flow control pipeline connects connection pipeline, useless hydrogen regulating valve valve group is installed on connection pipeline,
The lower part of connection pipeline is connected to cold low separator by low gas-distributing pipe line, is equipped with and gives up hydrogen-cooled low point on low gas-distributing pipe line
Valve.
Preferably, it is equipped with blow-down pipe on the top of cold low separator, gate valve is installed on blow-down pipe, cold low
The left side of pressure separator is equipped with thermalization and gas is divided to inject pipeline, divides gas to inject pipeline by thermalization and injects heat into cold low separator
Change divides gas, is equipped with coldization oil distributing pipe line in the bottom of cold low separator.
Preferably, it is connected with recovery line at connection pipeline and low gas-distributing pipe line, generate low point of cold low separator
The useless hydrogen that gas and circulating hydrogen compressor entrance liquid separation tank generate is mixed into recovery line.
Preferably, connection pipeline, low gas-distributing pipe line and recovery line are interconnected.
Preferably, the top of connection pipeline is parallel with flare line, torch is connected with by flare line, in flare line
On torch valve is installed.
Preferably, circulating hydrogen compressor, recycle hydrogen are connected by pipeline at the top of circulating hydrogen compressor entrance liquid separation tank
Compressor is in parallel with connection pipeline, and the right side of circulating hydrogen compressor connects new hydrogen by pipeline and injects pipeline, is injected by new hydrogen
Pipeline injects new hydrogen, and new hydrogen, which is mixed to form with recycle hydrogen by mixing line, mixes hydrogen.
The beneficial effects of the utility model are: the utility model is using the gas for increasing circulating hydrogen compressor entrance liquid separation tank
To adding a connection pipeline between the discharge pipe line of cold low separator, and flow is set on connection pipeline and has adjusted and subtracts
The useless hydrogen regulating valve valve group of pressure effect, is connected to cold low separator by low gas-distributing pipe line in the lower part in connection pipeline,
Low gas-distributing pipe line is equipped with the hydrogen-cooled low point of valve that give up, and realizes that useless hydrogen interval is discharged, it is pure to solve hydro-refining unit circulating hydrogen
Spend low technical problem, and useless hydrogen mix with low point of gas after enter recovery line, be recycled, be used as after desulfurization burnt
The raw material for changing dry gas hydrogen manufacturing reduces the loss of the useless hydrogen discharge of hydrofinishing, and the top of connection pipeline is parallel with flare line,
It is connected with torch by flare line, torch valve is installed on flare line, the torch of oil plant can be extinguished, reduce ring
Border pollution, improves the economic benefit of oil plant.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model；
Attached drawing 2 is the structural schematic diagram of embodiment 1；
In figure: circulating hydrogen compressor entrance liquid separation tank 1, circulating hydrogen compressor 2, cold low separator 3, recycle hydrogen injection pipe
Line 4, new hydrogen inject pipeline 5, mixing line 6, flow control pipeline 7, flow control valve 8, connection pipeline 9, torch 10, low point of gas
Pipeline 11, blow-down pipe 12, gate valve 13, thermalization divide gas injection pipeline 14, coldization oil distributing pipe line 15, hydrogen regulating valve valve group 16 of giving up,
Give up hydrogen-cooled low point of valve 17, recovery line 18, flare line 19, torch valve 20.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1:
The utility model includes circulating hydrogen compressor entrance liquid separation tank 1, circulating hydrogen compressor 2, cold low separator 3,
The left side of circulating hydrogen compressor entrance liquid separation tank 1 is connected with recycle hydrogen injection pipeline 4, is followed by the recycle hydrogen injection injection of pipeline 4
Ring hydrogen is connected with flow control pipeline 7 by pipeline at the top of circulating hydrogen compressor entrance liquid separation tank 1, in flow control pipeline 7
It is equipped with flow control valve 8, the lower part of flow control pipeline 7 connects connection pipeline 9, and useless hydrogen is installed on connection pipeline 9 and is adjusted
Valve valve group 16 is connected to cold low separator 3 by low gas-distributing pipe line 11 in the lower part of connection pipeline 9, in low gas-distributing pipe line 11
It is equipped with the hydrogen-cooled low point of valve 17 that give up.
Wherein, it is equipped with blow-down pipe 12 on the top of cold low separator 3, gate valve 13 is installed on blow-down pipe 12,
Being equipped with thermalization in the left side of cold low separator 3 divides gas to inject pipeline 14, divides gas to inject pipeline 14 to cold low point by thermalization
Divide gas from thermalization is injected in device 3, is equipped with coldization oil distributing pipe line 15 in the bottom of cold low separator 3.
In addition, recovery line 18 is connected at connection pipeline 9 and low gas-distributing pipe line 11, what cold low separator 3 generated
The useless hydrogen that low point of gas and circulating hydrogen compressor entrance liquid separation tank 1 generate is mixed into recovery line 18, realizes useless hydrogen and low point
The recycling of gas, useless hydrogen enter recovery line after mixing with low point of gas, are recycled, and coking dry gas hydrogen manufacturing is used as after desulfurization
Raw material, reduce hydrofinishing give up hydrogen discharge loss.
In addition, connection pipeline 9, low gas-distributing pipe line 11 and recovery line 18 are interconnected, useless hydrogen and low point of gas can be made
Enter recovery line after mixing, be recycled, the raw material after desulfurization as coking dry gas hydrogen manufacturing, it is useless to reduce hydrofinishing
The loss of hydrogen discharge.
Also, circulating hydrogen compressor 2, recycle hydrogen are connected by pipeline at the top of circulating hydrogen compressor entrance liquid separation tank 1
Compressor 2 is in parallel with connection pipeline 9, and the right side of circulating hydrogen compressor 2 connects new hydrogen by pipeline and injects pipeline 5, passes through new hydrogen
Injection pipeline 5 injects new hydrogen, and new hydrogen is mixed to form by mixing line 6 with recycle hydrogen and mixes hydrogen, by circulating hydrogen compressor and
New hydrogen injects pipeline 5, forms mixing hydrogen.
The utility model uses the delivery pipe for increasing the gas of circulating hydrogen compressor entrance liquid separation tank to cold low separator
A connection pipeline is added between line, and the useless hydrogen regulating valve valve of flow adjusting and depressurization has been set on connection pipeline
Group is connected to cold low separator by low gas-distributing pipe line in the lower part in connection pipeline, and useless hydrogen is equipped on low gas-distributing pipe line
Cold low point of valve realizes that useless hydrogen interval is discharged, solves the low technical problem of hydro-refining unit circulating hydrogen purity, and useless
Hydrogen enters recovery line after mixing with low point of gas, is recycled, the raw material after desulfurization as coking dry gas hydrogen manufacturing, reduces
Hydrofinishing is given up the loss of hydrogen discharge.
Embodiment 2:
The utility model includes circulating hydrogen compressor entrance liquid separation tank 1, circulating hydrogen compressor 2, cold low separator 3,
The left side of circulating hydrogen compressor entrance liquid separation tank 1 is connected with recycle hydrogen injection pipeline 4, is followed by the recycle hydrogen injection injection of pipeline 4
Ring hydrogen is connected with flow control pipeline 7 by pipeline at the top of circulating hydrogen compressor entrance liquid separation tank 1, in flow control pipeline 7
It is equipped with flow control valve 8, the lower part of flow control pipeline 7 connects connection pipeline 9, and useless hydrogen is installed on connection pipeline 9 and is adjusted
Valve valve group 16 is connected to cold low separator 3 by low gas-distributing pipe line 11 in the lower part of connection pipeline 9, in low gas-distributing pipe line 11
It is equipped with the hydrogen-cooled low point of valve 17 that give up.
Wherein, it is equipped with blow-down pipe 12 on the top of cold low separator 3, gate valve 13 is installed on blow-down pipe 12,
Being equipped with thermalization in the left side of cold low separator 3 divides gas to inject pipeline 14, divides gas to inject pipeline 14 to cold low point by thermalization
Divide gas from thermalization is injected in device 3, is equipped with coldization oil distributing pipe line 15 in the bottom of cold low separator 3.
In addition, recovery line 18 is connected at connection pipeline 9 and low gas-distributing pipe line 11, what cold low separator 3 generated
The useless hydrogen that low point of gas and circulating hydrogen compressor entrance liquid separation tank 1 generate is mixed into recovery line 18, realizes useless hydrogen and low point
The recycling of gas, useless hydrogen enter recovery line after mixing with low point of gas, are recycled, and coking dry gas hydrogen manufacturing is used as after desulfurization
Raw material, reduce hydrofinishing give up hydrogen discharge loss.
In addition, connection pipeline 9, low gas-distributing pipe line 11 and recovery line 18 are interconnected, useless hydrogen and low point of gas can be made
Enter recovery line after mixing, be recycled, the raw material after desulfurization as coking dry gas hydrogen manufacturing, it is useless to reduce hydrofinishing
The loss of hydrogen discharge.
In addition, the top of connection pipeline 9 is parallel with flare line 19, torch 10 is connected with by flare line 19, in fire
Torch valve 20 is installed on torch pipe line 19, opens torch valve, realizes and cross over pipe and flare stack is realized by useless hydrogen regulating valve valve group
Line is connected, and low gas-distributing pipe line 11 is connected with flare line, can extinguish the torch of oil plant, reduce environmental pollution, mention
The high economic benefit of oil plant.
Circulating hydrogen compressor entrance liquid separation tank passes through the useless hydrogen regulating valve valve group that is mounted on pipeline and cold low separator
It is connected with coking dry gas desulphurization system, useless hydrogen regulating valve valve group passes through the useless hydrogen that is mounted on pipeline to torch valve and flare stack
Line is connected, and useless hydrogen regulating valve valve group is connected with flare line.Useless hydrogen regulating valve valve group, which passes sequentially through, to be mounted on pipeline
Cold low point of valve is connected with cold low separator and hydrogen recovery system.
Also, circulating hydrogen compressor 2, recycle hydrogen are connected by pipeline at the top of circulating hydrogen compressor entrance liquid separation tank 1
Compressor 2 is in parallel with connection pipeline 9, and the right side of circulating hydrogen compressor 2 connects new hydrogen by pipeline and injects pipeline 5, passes through new hydrogen
Injection pipeline 5 injects new hydrogen, and new hydrogen is mixed to form by mixing line 6 with recycle hydrogen and mixes hydrogen, by circulating hydrogen compressor and
New hydrogen injects pipeline 5, forms mixing hydrogen.
The utility model uses the delivery pipe for increasing the gas of circulating hydrogen compressor entrance liquid separation tank to cold low separator
A connection pipeline is added between line, and the useless hydrogen regulating valve valve of flow adjusting and depressurization has been set on connection pipeline
Group is connected to cold low separator by low gas-distributing pipe line in the lower part in connection pipeline, and useless hydrogen is equipped on low gas-distributing pipe line
Cold low point of valve realizes that useless hydrogen interval is discharged, solves the low technical problem of hydro-refining unit circulating hydrogen purity, and useless
Hydrogen enters recovery line after mixing with low point of gas, is recycled, the raw material after desulfurization as coking dry gas hydrogen manufacturing, reduces
Hydrofinishing is given up the loss of hydrogen discharge, and the top of connection pipeline is parallel with flare line, be connected with fire by flare line
Torch is equipped with torch valve on flare line, can extinguish the torch of oil plant, reduce environmental pollution, improve oil plant
Economic benefit.
The above, is only the preferred embodiment of the utility model, and anyone skilled in the art may benefit
Equivalent technical solution is modified the utility model or is revised as with the technical solution of above-mentioned elaboration.Therefore, foundation
Any simple modification or substitute equivalents that the technical solution of the utility model is carried out belong to the greatest extent the requires of the utility model protection
Range.
Claims (6)
1. a kind of hydrofinishing improves the device of circulation hydrogen purity, it is characterized in that: including circulating hydrogen compressor entrance liquid separation tank
(1), circulating hydrogen compressor (2), cold low separator (3), are connected on the left of circulating hydrogen compressor entrance liquid separation tank (1) and follow
Ring hydrogen injects pipeline (4), injects recycle hydrogen by recycle hydrogen injection pipeline (4), pushes up in circulating hydrogen compressor entrance liquid separation tank (1)
Portion is connected with flow control pipeline (7) by pipeline, is equipped with flow control valve (8) on flow control pipeline (7), flow control
The lower part of pipeline (7) connects connection pipeline (9), useless hydrogen regulating valve valve group (16) is installed on connection pipeline (9), in connection pipeline
(9) lower part is connected to cold low separator (3) by low gas-distributing pipe line (11), hydrogen-cooled equipped with giving up on low gas-distributing pipe line (11)
Low point of valve (17).
2. a kind of hydrofinishing according to claim 1 improves the device of circulation hydrogen purity, it is characterized in that: in cold low point
Top from device (3) is equipped with blow-down pipe (12), gate valve (13) is equipped on blow-down pipe (12), in cold low separator
(3) left side is equipped with thermalization and gas is divided to inject pipeline (14), divides gas injection pipeline (14) into cold low separator (3) by thermalization
Injection thermalization divides gas, is equipped with coldization oil distributing pipe line (15) in the bottom of cold low separator (3).
3. a kind of hydrofinishing according to claim 1 improves the device of circulation hydrogen purity, it is characterized in that: in connection pipeline
(9) it and is connected with recovery line (18) at low gas-distributing pipe line (11), the low point of gas and recycle hydrogen pressure that cold low separator (3) generates
The useless hydrogen that contracting machine entrance liquid separation tank (1) generates is mixed into recovery line (18).
4. a kind of hydrofinishing according to claim 3 improves the device of circulation hydrogen purity, it is characterized in that: connection pipeline
(9), low gas-distributing pipe line (11) and recovery line (18) are interconnected.
5. a kind of hydrofinishing according to claim 1 improves the device of circulation hydrogen purity, it is characterized in that: connection pipeline
(9) top is parallel with flare line (19), is connected with torch (10) by flare line (19), pacifies on flare line (19)
Equipped with torch valve (20).
6. a kind of hydrofinishing according to claim 1 improves the device of circulation hydrogen purity, it is characterized in that: in recycle hydrogen pressure
The top of contracting machine entrance liquid separation tank (1) connects circulating hydrogen compressor (2) by pipeline, circulating hydrogen compressor (2) and connection pipeline
(9) in parallel, the right side of circulating hydrogen compressor (2) connects new hydrogen injection pipeline (5) by pipeline, injects pipeline (5) by new hydrogen
New hydrogen is injected, new hydrogen is mixed to form by mixing line (6) with recycle hydrogen and mixes hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822103157.3U CN209428467U (en) | 2018-12-14 | 2018-12-14 | A kind of hydrofinishing improves the device of circulation hydrogen purity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822103157.3U CN209428467U (en) | 2018-12-14 | 2018-12-14 | A kind of hydrofinishing improves the device of circulation hydrogen purity |
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| Publication Number | Publication Date |
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| CN209428467U true CN209428467U (en) | 2019-09-24 |
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| CN201822103157.3U Active CN209428467U (en) | 2018-12-14 | 2018-12-14 | A kind of hydrofinishing improves the device of circulation hydrogen purity |
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| Country | Link |
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2018
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