CN206298552U - A kind of circulating cooling device of full liquid phase hydrogenation technology - Google Patents
A kind of circulating cooling device of full liquid phase hydrogenation technology Download PDFInfo
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- CN206298552U CN206298552U CN201621219728.4U CN201621219728U CN206298552U CN 206298552 U CN206298552 U CN 206298552U CN 201621219728 U CN201621219728 U CN 201621219728U CN 206298552 U CN206298552 U CN 206298552U
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- gas compressor
- hydrogen gas
- cooler
- circulating cooling
- cooling device
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Abstract
The utility model is related to liquid-phase hydrogenatin field, discloses a kind of circulating cooling device of full liquid phase hydrogenation technology, and the device includes：Reciprocating hydrogen gas compressor (1), the first cooler (2), hydrogenation reactor (3), the second cooler (4) and point flow container (5) being sequentially communicated by pipeline, and divide the outlet of flow container (5) to be connected by pipeline with the entrance of reciprocating hydrogen gas compressor (1).The circulating cooling device of the full liquid phase hydrogenation technology that the utility model is provided can not increase new equipment investment, only by changing flow, in the case of connected mode in the device that change is provided in the prior art, reach the purpose of downtime beds fast cooling, solve existing full liquid-phase hydrogenatin device well to lower the temperature during shut-down difficulty, cooling cycle defect long.
Description
Technical field
The utility model is related to liquid-phase hydrogenatin field, in particular it relates to a kind of circulation temperature lowering dress of full liquid phase hydrogenation technology
Put.
Background technology
As people are to the pay attention to day by day of environmental protection, environmental regulation is also increasingly strict, and oil hydrogenation desulfurization technology is obtained
Abundant development, and energy-saving and emission-reduction are also the core missions of oil refining enterprise, therefore the relatively low full liquid phase hydrogenation technology of energy consumption obtains fast
Speed is promoted, especially domestic newly-built Diesel Oil Hydrofining Unit, mostly using full liquid phase hydrogenation technology.But full liquid-phase hydrogenatin skill
Art one is larger to be had the disadvantage, without the larger circulating hydrogen compressor of gas flow (traditional trickle bed hydrogenation plant key equipment), to stop work
Cooling slowly, can only be lowered the temperature by reciprocating hydrogen gas compressor, and reciprocating hydrogen gas compressor is pressed due to gas
Contracting, therefore outlet temperature is higher, in normal productive process, reciprocating hydrogen gas compressor outlet temperature can reach 100-125 DEG C.And
Hydrogenation plant is stopped work during changing agent and enters inside reactor, it is necessary to catalyst temperature is reduced into less than 50 DEG C and can meet personnel
Job requirements.
At present, the circulation temperature lowering flow of more conventional full liquid phase hydrogenation technology is：By the outlet of reciprocating hydrogen gas compressor
Hydrogen delivers to hydrogenation reactor, and beds in hydrogenation reactor are lowered the temperature, and hydrogenation reactor exporting hydrogen is led to
To enter exchanged heat in water cooler, then passing to point flow container carries out gas-liquid separation, and exit gas loops back reciprocating hydrogen gas compressor.
Lower the temperature in the temperature-fall period of the full liquid phase hydrogenation technology of prior art extremely difficult, have a strong impact on turnaround of unit week
Phase.
Utility model content
The purpose of this utility model is the defect of difficulty of lowering the temperature in the temperature-fall period for overcome existing full liquid phase hydrogenation technology,
There is provided a kind of circulating cooling device of full liquid phase hydrogenation technology, it is intended in the case of not increasing additional investment, it is quick effectively to reduce
Reaction bed temperature.
To achieve these goals, the utility model provides a kind of circulating cooling device of full liquid phase hydrogenation technology, will fill
Put including：The reciprocating hydrogen gas compressor that is sequentially communicated by pipeline, the first cooler, hydrogenation reactor, the second cooler and
Flow container, and the outlet of point flow container is divided to be connected by pipeline with the entrance of reciprocating hydrogen gas compressor.
Preferably, the outlet of first cooler is connected with the entrance of point flow container by pipeline, and is provided with pipeline
Regulating valve.
Preferably, the cooler is water cooler.
Preferably, the outlet of the reciprocating hydrogen gas compressor is connected with the entrance of hydrogenation reactor by pipeline.
Preferably, outlet is installed on the outlet of reciprocating hydrogen gas compressor and the connecting pipeline of the entrance of hydrogenation reactor
Valve.
Preferably, hydrogenation reactor is in parallel with the first cooler connects with reciprocating hydrogen gas compressor.
Preferably, outlet valve is installed in the tap line that hydrogenation reactor is connected with reciprocating hydrogen gas compressor.
The circulating cooling device of the full liquid phase hydrogenation technology provided using the utility model can not increase new equipment
Investment, only by changing flow, the connected mode in the device that change is provided in the prior art reaches downtime catalyst bed
The purpose of layer fast cooling, solves existing full liquid-phase hydrogenatin device and lower the temperature during shut-down difficulty well, the cooling cycle
Defect long.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is further understood to of the present utility model for providing, and constitutes a part for specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is a kind of circulating cooling device of the full liquid phase hydrogenation technology of specific embodiment that the utility model is provided；
Fig. 2 is a kind of circulating cooling device of the full liquid phase hydrogenation technology of specific embodiment that prior art is provided.
Description of reference numerals
Reciprocating the first coolers of the hydrogen gas compressor 2- 3- hydrogenation reactors of 1-
The second coolers of 4- 5- points of flow container 6- regulating valve
7- outlet valves
Specific embodiment
Specific embodiment of the present utility model is described in detail below.It should be appreciated that described herein
Specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.
The end points and any value of disclosed scope are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
One or more can be obtained with combination with one another between the endpoint value of individual scope and single point value, and individually between point value
New number range, these number ranges should be considered as specific open herein.
The utility model provides a kind of circulating cooling device of full liquid phase hydrogenation technology, and the device includes：By pipeline
Reciprocating hydrogen gas compressor 1, the first cooler 2, hydrogenation reactor 3, the second cooler 4 and point flow container 5 being sequentially communicated, and
The outlet of flow container 5 is divided to be connected by pipeline with the entrance of reciprocating hydrogen gas compressor 1.
The circulating cooling device of the full liquid phase hydrogenation technology that the utility model is provided need not increase new equipment investment, only
By changing flow, the connected mode between change equipment can just reach the purpose of downtime beds fast cooling,
Solve existing full liquid-phase hydrogenatin device well to lower the temperature during shut-down difficulty, cooling cycle defect long.
According to the circulating cooling device that the utility model is provided, it is preferable that the outlet of first cooler 2 and a point flow container
5 entrance is connected by pipeline, and regulating valve 6 is provided with pipeline.
If the outlet superpressure of reciprocating hydrogen gas compressor 1, easily causes the damage of reciprocating hydrogen gas compressor 1, this reality
Regulating valve 6, the energy of regulating valve 6 are installed by the outlet of the first cooler 2 with the connecting pipeline of the entrance of point flow container 5 with new
Enough outlet pressures for effectively adjusting reciprocating hydrogen gas compressor 1, when the outlet pressure of reciprocating hydrogen gas compressor 1 is too high, beat
The entrance that excessive hydrogen is introduced regulating valve 6 point flow container 5 is opened, reciprocating hydrogen gas compressor 1 is then looped back.Prior art is such as
Shown in Fig. 2, the installation site of its cooler 2 of regulating valve 6 and first is with the utility model conversely, the utility model is in order that must adjust
The section cooler 2 of valve 6 and first can play a part of to reduce the entrance hydrogen temperature of hydrogenation reactor 3 during circulation temperature lowering,
Can also play a part of to adjust back the outlet pressure of reciprocating hydrogen gas compressor 1, regulating valve 6 is arranged at after the first cooler 2.
In the utility model, the species to the cooler 4 of first cooler 2 and second has no particular limits, only
The cooling effect to hydrogen can be played, those skilled in the art can be selected according to specific plant and equipment.
According to a kind of preferred embodiment of the present utility model, first cooler 2 is water cooler.
According to a kind of preferred embodiment of the present utility model, second cooler 4 is water cooler.
According to the utility model provide circulating cooling device, it is preferable that the outlet of the reciprocating hydrogen gas compressor 1 with
The entrance of hydrogenation reactor 3 is connected by pipeline.
According to the utility model provide circulating cooling device, it is preferable that the outlet of reciprocating hydrogen gas compressor (1) with plus
Outlet valve 7 is installed on the connecting pipeline of the entrance of hydrogen reactor (3).The outlet valve 7 is used to switch shutting down flow operations.
Circulating cooling device described in the utility model, in temperature-fall period, regulating valve 6 and outlet valve 7 is closed, back and forth
The exporting hydrogen of formula hydrogen gas compressor 1 is lowered the temperature into the first cooler 2, and hydrogen is passed through hydrogenation reactor successively after then lowering the temperature
3rd, the second cooler 4 and point flow container 5, point exporting hydrogen of flow container 5 loop back the entrance of reciprocating hydrogen gas compressor 1, in normal full liquid
Mutually in hydrogenation production process, regulating valve 6 and outlet valve 7 are opened, the exporting hydrogen of reciprocating hydrogen gas compressor 1 enters by outlet valve 7
Enter hydrogenation reactor 3, supplement reaction system consumption hydrogen, by after the cooling of the first cooler 2, regulating valve 6 is incorporated to point for unnecessary hydrogen
The entrance of flow container 5, finally loops back the entrance of reciprocating hydrogen gas compressor 1.
According to a kind of preferred embodiment of the present utility model, as shown in figure 1, the cooler 2 of hydrogenation reactor 3 and first is simultaneously
Connection is connected with reciprocating hydrogen gas compressor 1, the branch for further preferably being connected with reciprocating hydrogen gas compressor 1 in hydrogenation reactor 3
Outlet valve 7 is installed on the pipeline of road.The cooling of hydrogenation reactor 3 and reciprocating is more beneficial for using this kind of preferred embodiment
The regulation of the exporting hydrogen pressure of hydrogen gas compressor 1, it is to avoid superpressure.
In the utility model, second cooler 4 is used for the cooling of the exporting hydrogen of hydrogenation reactor 3.By first
The hydrogen of the outlet of reciprocating hydrogen gas compressor 1 of the cooling of cooler 2, into after hydrogenation reactor 3, due to the temperature of hydrogenation reactor 3
Degree is higher, therefore the exporting hydrogen temperature of hydrogenation reactor 3 is higher, because reciprocating hydrogen gas compressor 1 is to the temperature of entrance hydrogen
By requiring, typically less demanding in 40 DEG C, the hydrogen of higher temperature cannot be recycled directly back to the entrance of reciprocating hydrogen gas compressor 1,
Therefore the exporting hydrogen of hydrogenation reactor 3 is lowered the temperature using the second cooler 4, is preferably down to less than 40 DEG C.
In the utility model, described point of flow container 5 is used to remove the liquid that may be carried secretly in the exporting hydrogen of hydrogenation reactor 3
Body.The remnants of the oil product used in full liquid-phase hydrogenatin course of reaction are there may be in hydrogenation reactor 3, oil product enters reciprocating hydrogen
In air compressor 1, large effect will be caused to reciprocating hydrogen gas compressor 1, therefore, using point flow container 5 by hydrogenation reactor 3
The liquid that may be carried secretly in exporting hydrogen is removed.
The device that the utility model is provided need not increase new equipment investment, be not only able to complete complete using existing equipment
The circulation temperature lowering of liquid phase hydrogenation technology, additionally it is possible to meet the normal operating conditions of full liquid phase hydrogenation technology.According to the utility model
A kind of preferred embodiment, in normal full liquid-phase hydrogenatin production process, the exporting hydrogen of reciprocating hydrogen gas compressor 1 is passed through
Outlet valve 7 enters hydrogenation reactor 3, and supplement reaction system consumption hydrogen, unnecessary hydrogen passes through after the first cooler 2 is cooled down
Regulating valve 6, is incorporated to the entrance of reciprocating hydrogen gas compressor 1.
Implementation method of the present utility model is described in detail below in conjunction with Fig. 1.The full liquid-phase hydrogenatin skill that the utility model is provided
The circulating cooling device of art is not only able to complete the circulation temperature lowering of full liquid phase hydrogenation technology, additionally it is possible to meet full liquid phase hydrogenation technology
Normal operating conditions.In full liquid-phase hydrogenatin production process, it is anti-that feedstock oil and hydrogen carry out full liquid phase in the presence of a catalyst
Should, the exporting hydrogen of reciprocating hydrogen gas compressor 1 enters hydrogenation reactor 3 and supplements reaction consumption hydrogen by outlet valve 7, and product is entered
Row further treatment, after reaction consumption hydrogen is reduced, when the outlet pressure of reciprocating hydrogen gas compressor 1 is more than 13.8MPa, by control
Regulating valve 6 and outlet valve 7, by hydrogen partial by after the first cooler 2 is cooled down, by regulating valve 6, being incorporated to point flow container 5
Entrance, finally loops back the recycling of the entrance of reciprocating hydrogen gas compressor 1；During the circulation temperature lowering of full liquid phase hydrogenation technology,
Regulating valve 6 and outlet valve 7 are closed, the exporting hydrogen of reciprocating hydrogen gas compressor 1 is lowered the temperature into the first cooler 2, hydrogen
Temperature is down to 40 DEG C, and hydrogen is passed through hydrogenation reactor 3, the second cooler 4 and point flow container 5 successively after then lowering the temperature, and a point flow container 5 goes out
Mouth hydrogen loops back the entrance of reciprocating hydrogen gas compressor 1, if the outlet pressure of reciprocating hydrogen gas compressor 1 reaches 13.8MPa, adopts
The outlet pressure of reciprocating hydrogen gas compressor 1 is adjusted with method same in hydrogenation production process, continuously to hydrogenation reaction
The purging of device 3 enters hydrogenation reactor job requirements until meeting operating personnel.The device provided using the utility model is greatly shortened
Temperature fall time, and then shorten downtime period.
The device of existing circulation temperature lowering is illustrated with reference to Fig. 2.After full liquid-phase hydrogenatin production is stopped work, hydrogenation reactor 3 is entered
Row cooling, the process includes：Regulating valve 6 is closed, outlet valve 7 is opened, by the exporting hydrogen of reciprocating hydrogen gas compressor 1 by exporting
After valve 7, hydrogenation reactor 3, the second cooler 4 and point flow container 5 are passed through, point exporting hydrogen of flow container 5 loops back reciprocating hydrogen pressure
The entrance of contracting machine 1, if the outlet pressure of reciprocating hydrogen gas compressor 1 is more than 13.8MPa, using same in above-mentioned hydrogenation production process
Method the outlet pressure of reciprocating hydrogen gas compressor 1 is adjusted；Continuous purging to hydrogenation reactor 3 operates until meeting
Personnel enter hydrogenation reactor job requirements.When its purge time is considerably longer than the purging of the device provided using the utility model
Between.
From the above, it is seen that the circulating cooling device of the full liquid phase hydrogenation technology of the utility model offer need not
Increase new equipment investment, only by changing flow, the connected mode in the device that change is provided in the prior art reaches shut-down
The purpose of period beds fast cooling, greatly reduces downtime.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited
Detail in above-mentioned implementation method, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means.
Additionally, can also be combined between a variety of implementation methods of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (8)
1. a kind of circulating cooling device of full liquid phase hydrogenation technology, it is characterised in that the device includes：It is sequentially communicated by pipeline
Reciprocating hydrogen gas compressor (1), the first cooler (2), hydrogenation reactor (3), the second cooler (4) and point flow container (5), and
And the outlet of point flow container (5) is connected with the entrance of reciprocating hydrogen gas compressor (1) by pipeline.
2. circulating cooling device according to claim 1, it is characterised in that the outlet of first cooler (2) with point
The entrance of flow container (5) is connected by pipeline, and regulating valve (6) is provided with pipeline.
3. circulating cooling device according to claim 1 and 2, it is characterised in that first cooler (2) is water-cooled
Device.
4. circulating cooling device according to claim 1 and 2, it is characterised in that second cooler (4) is water-cooled
Device.
5. circulating cooling device according to claim 1 and 2, it is characterised in that the reciprocating hydrogen gas compressor (1)
Outlet is connected with the entrance of hydrogenation reactor (3) by pipeline.
6. circulating cooling device according to claim 5, it is characterised in that reciprocating hydrogen gas compressor (1) goes out
Outlet valve (7) is installed on mouth and the connecting pipeline of the entrance of hydrogenation reactor (3).
7. circulating cooling device according to claim 5, it is characterised in that hydrogenation reactor (3) and the first cooler (2)
It is in parallel to be connected with reciprocating hydrogen gas compressor (1).
8. circulating cooling device according to claim 7, it is characterised in that in hydrogenation reactor (3) and reciprocating hydrogen
Outlet valve (7) is installed in the tap line of compressor (1) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219728.4U CN206298552U (en) | 2016-11-11 | 2016-11-11 | A kind of circulating cooling device of full liquid phase hydrogenation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219728.4U CN206298552U (en) | 2016-11-11 | 2016-11-11 | A kind of circulating cooling device of full liquid phase hydrogenation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206298552U true CN206298552U (en) | 2017-07-04 |
Family
ID=59203574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621219728.4U Active CN206298552U (en) | 2016-11-11 | 2016-11-11 | A kind of circulating cooling device of full liquid phase hydrogenation technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN206298552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862195A (en) * | 2018-06-19 | 2018-11-23 | 中国石油化工股份有限公司 | It is a kind of to improve the coal generating gas sulphur-resistant conversion system for stopping work cooling efficiency |
-
2016
- 2016-11-11 CN CN201621219728.4U patent/CN206298552U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862195A (en) * | 2018-06-19 | 2018-11-23 | 中国石油化工股份有限公司 | It is a kind of to improve the coal generating gas sulphur-resistant conversion system for stopping work cooling efficiency |
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