CN204918490U - Dissolve device of hydrocarbon in reduction ion liquid catalyst - Google Patents
Dissolve device of hydrocarbon in reduction ion liquid catalyst Download PDFInfo
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- CN204918490U CN204918490U CN201520610967.1U CN201520610967U CN204918490U CN 204918490 U CN204918490 U CN 204918490U CN 201520610967 U CN201520610967 U CN 201520610967U CN 204918490 U CN204918490 U CN 204918490U
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Abstract
The utility model belongs to the chemical industry field discloses a dissolve device of hydrocarbon in reduction ion liquid catalyst very much. This dissolve device of hydrocarbon in reduction ion liquid catalyst includes reactor, one -level hydrocyclone, one -level ion liquid settling cask, takes off hydrocarbon hydrocyclone and grade separation mechanism, and the export of ion liquid circulating pump is linked together through pipeline and the feed inlet that takes off hydrocarbon hydrocyclone, and the bottom discharge mouth that takes off hydrocarbon hydrocyclone is linked together through the catalyst entry of pipeline with the reactor, and the top discharge mouth that takes off hydrocarbon hydrocyclone is linked together through the ion liquid feed inlet of pipeline with the reactor. This dissolve device of hydrocarbon in reduction ion liquid catalyst when guaranteeing big ion liquid circulation volume, has reduced the hydrocarbon that dissolves in the ion liquid, dissolves the hydrocarbon in the ion liquid of after -separating and has only 10 -15%, and sour hydrocarbon can satisfy the required sour hydrocarbon of ion liquid alkylation reaction than being greater than 1 technological requirement than at 1 -1.2 totally, and the alkylate octane number that obtains is by 96 improvements to 97.
Description
(1) technical field
The utility model belongs to chemical field, particularly a kind of device reducing molten hydrocarbon in ionic liquid catalyst.
(2) background technology
Alkylated reaction specifically refers to that Trimethylmethane and alkene are obtained by reacting isoparaffin under the effect of catalyzer, it is the conventional art in refining of petroleum field, its product (alkylate oil) have low-sulfur, low-steam pressure, without aromatic hydrocarbons, without advantages such as alkene, heats of combustion value, high-octane ratings, be desirable gasoline blending component.Conventional alkylation reaction is mainly divided into sulfuric acid process alkylation techniques and hydrogen fluoride alkylation techniques, but the two all also exists the problems such as insoluble serious equipment corrosion and environmental pollution, significantly limit its wide popularization and application.Ionic liquid is the emerging eco-friendly fluent material that a class is made up of zwitterion completely, due to the physicochemical property of its uniqueness, as the designability etc. of extremely low vapour pressure, wide in range liquid temperature scope, good dissolving power, specific function, in alkylated reaction catalysis, cause the extensive concern of domestic and international many scholars.
Take ionic liquid as the alkyl plant of catalyzer, conventional reactor types is line-blending reactor, and the essential condition meeting pipe reaction is exactly must have large ionic liquid internal circulating load to ensure that the acid hydrocarbon ratio required for alkylated reaction is being not less than 1.But, ensure that the problem that ionic liquid big cycle volume brings simultaneously substantially reduces the sedimentation residence time of ionic liquid at slurry tank, the sedimentation effect of being disturbed, make the hydro carbons dissolved in ionic liquid liquid phase can not be well out settlement separate, cause the content of molten hydrocarbon in ionic liquid up to about 30% (V/V).Molten hydrocarbon content in circulation ionic liquid is high, the acid hydrocarbon ratio reacted is caused to only have 0.6:1 (V/V), and the acid hydrocarbon ratio that reaction normally carries out needing is 1:1 (V/V), alkylated reaction acid hydrocarbon ratio is too low will have a strong impact on normally carrying out of alkylated reaction.In addition, ionic liquid molten hydrocarbon height also can cause the error of metrical instrument large, and pump vibration is large, machine is sealed and easily damages, and it is very large passive to bring to production operation.
(3) summary of the invention
The utility model is in order to make up the deficiencies in the prior art, provide and a kind ofly while ensureing large ionic liquid internal circulating load, reduce the molten hydrocarbon in ionic liquid, processing requirement that the acid hydrocarbon ratio met required for ionic liquid alkylated reaction is greater than 1, improve alkylate oil octane value reduction ionic liquid catalyst in the device of molten hydrocarbon, solve problems of the prior art.
The utility model is achieved by the following technical solution:
A kind of device reducing molten hydrocarbon in ionic liquid catalyst, comprise reactor, one-level wet cyclone, primary ion liquid slurry tank, de-hydrocarbon wet cyclone and the second-order separation mechanism, the material inlet of reactor is connected with feed line by pipeline, the material outlet of reactor is connected by the opening for feed of pipeline with one-level wet cyclone, the bottom discharge mouth of one-level wet cyclone is connected by the underfeed mouth of pipeline with primary ion liquid slurry tank, the top discharge mouth of primary ion liquid slurry tank is connected to the second-order separation mechanism by pipeline after a valve is connected with the top discharge mouth of one-level wet cyclone, the bottom discharge mouth of primary ion liquid slurry tank is connected by the entrance of pipeline with ionic liquid recycle pump, ionic liquid circulation pump outlet is connected by the opening for feed of pipeline with de-hydrocarbon wet cyclone, the bottom discharge mouth of de-hydrocarbon wet cyclone is connected with the catalyst inlet of reactor by pipeline, the top discharge mouth of de-hydrocarbon wet cyclone is connected with the ionic liquid opening for feed of reactor through a valve by pipeline.
Described the second-order separation mechanism comprises secondary rotary liquid/gas separator and secondary ion liquid slurry tank.
The beneficial effects of the utility model are: the device of molten hydrocarbon in this reduction ionic liquid catalyst, reasonable in design, de-hydrocarbon wet cyclone is added between ionic liquid circulation pump outlet and the ionic liquid opening for feed of reactor, the hydro carbons carried in ionic liquid is separated from ionic liquid, and the low molten hydrocarbon ionic liquid that separation obtains enters reactor and carries out alkylated reaction.The utility model reduces the device of molten hydrocarbon in ionic liquid catalyst, while ensureing large ionic liquid internal circulating load, reduces the molten hydrocarbon in ionic liquid.Through calculating, in ionic liquid after de-hydrocarbon wet cyclone is separated, molten hydrocarbon only has 10-15%, acid hydrocarbon ratio is at 1-1.2, the processing requirement that the complete acid hydrocarbon ratio that can meet required for ionic liquid alkylated reaction is greater than 1, alkylated reaction is normally carried out, the alkylate oil octane value (RON) obtained is increased to 97 by 96, successful.In addition, after the molten hydrocarbon of ionic liquid reduces, the error of metrical instrument is reduced, pump vibration reduces, and extends the work-ing life of machine envelope, makes production operation more steady.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model.
In figure, 1 reactor, 2 one-level wet cyclones, 3 primary ion liquid slurry tanks, 4 de-hydrocarbon wet cyclones, 5 the second-order separation mechanisms, 6 ionic liquid recycle pumps.
(5) embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.
As shown in fig. 1, this embodiment comprises reactor 1, one-level wet cyclone 2, primary ion liquid slurry tank 3, de-hydrocarbon wet cyclone 4 and the second-order separation mechanism 5, the material inlet of reactor 1 is connected with feed line by pipeline, the material outlet of reactor 1 is connected by the opening for feed of pipeline with one-level wet cyclone 2, the bottom discharge mouth of one-level wet cyclone 2 is connected by the underfeed mouth of pipeline with primary ion liquid slurry tank 3, the top discharge mouth of primary ion liquid slurry tank 3 is connected to the second-order separation mechanism 5 by pipeline after a valve is connected with the top discharge mouth of one-level wet cyclone 2, the bottom discharge mouth of primary ion liquid slurry tank 3 is connected by the entrance of pipeline with ionic liquid recycle pump 6, the outlet of ionic liquid recycle pump 6 is connected by the opening for feed of pipeline with de-hydrocarbon wet cyclone 4, the bottom discharge mouth of de-hydrocarbon wet cyclone 4 is connected by the catalyst inlet of pipeline with reactor 1, the top discharge mouth of de-hydrocarbon wet cyclone 4 is connected with the ionic liquid opening for feed of reactor 1 through a valve by pipeline.
Described the second-order separation mechanism 5 comprises secondary rotary liquid/gas separator and secondary ion liquid slurry tank.
The production technique that the utility model reduces the device of molten hydrocarbon in ionic liquid catalyst is:
Feed line carries the C4 hydrocarbon raw material of coming to enter reactor 1 from the ionic liquid opening for feed of reactor 1, in reactor 1 ionic liquid katalysis under carry out alkylated reaction, generate alkylate oil.Then, the mixture in reactor 1 is discharged from reactor 1 by the material outlet of reactor 1, enters one-level wet cyclone 2.In one-level wet cyclone 2, the ionic liquid that proportion is larger is thrown to wall by the effect of centrifugal force, and it is dirty to press spiral-line along wall, discharge from the bottom discharge mouth of one-level wet cyclone 2, enter primary ion liquid slurry tank 3, the mixture of the alkylation wet goods hydro carbons that proportion is less is then gone out by the top discharge mouth overflow at one-level wet cyclone 2 center, the second-order separation mechanism 5 is delivered to together with the hydro carbons that the top discharge mouth of primary ion liquid slurry tank 3 is discharged, be separated through the second-order separation mechanism 5 ionic liquid obtained further and enter into ionic liquid recycle system participation reaction, hydro carbons then enters into fractionation through alkali cleaning and washing process and to freeze operation.
In primary ion liquid slurry tank 3, through settlement separate, ionic liquid is separated further with the hydro carbons that it carries, the ionic liquid of bottom enters de-hydrocarbon wet cyclone 4 through ionic liquid recycle pump 6 from the bottom discharge mouth discharge of primary ion liquid slurry tank 3, in de-hydrocarbon wet cyclone 4, the ionic liquid that proportion is larger is thrown to wall by the effect of centrifugal force, and it is dirty to press spiral-line along wall, discharge from the bottom discharge mouth of de-hydrocarbon wet cyclone 4, enter the carrying out of reactor 1 catalytic alkylation reaction, the hydro carbons that proportion is less is then gone out by the top discharge mouth overflow at de-hydrocarbon wet cyclone 4 center, one-level wet cyclone 2 is entered together with the mixture that reactor 1 is discharged, continuous circulation.
In traditional technology, ionic liquid carries out alkylated reaction by ionic liquid recycle pump 6 from directly entering reactor after primary ion liquid slurry tank 3 is extracted out, and the utility model reduces the device of molten hydrocarbon in ionic liquid catalyst, de-hydrocarbon wet cyclone 4 is added between the outlet and the ionic liquid opening for feed of reactor 1 of ionic liquid recycle pump 4, the hydro carbons carried in ionic liquid is separated from ionic liquid, is separated the low molten hydrocarbon ionic liquid obtained and enters reactor catalysis reaction.
The utility model reduces the device of molten hydrocarbon in ionic liquid catalyst, while ensureing large ionic liquid internal circulating load, reduces the molten hydrocarbon in ionic liquid.Through calculating, in ionic liquid after de-hydrocarbon wet cyclone is separated, molten hydrocarbon only has 10-15%, acid hydrocarbon ratio is at 1-1.2, the processing requirement that the complete acid hydrocarbon ratio that can meet required for ionic liquid alkylated reaction is greater than 1, alkylated reaction is fully carried out, the alkylate oil octane value (RON) obtained is increased to 97 by 96, successful.
The utility model does not describe part in detail, is the known technology of those skilled in the art of the present technique.What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. one kind is reduced the device of molten hydrocarbon in ionic liquid catalyst, it is characterized in that: comprise reactor, one-level wet cyclone, primary ion liquid slurry tank, de-hydrocarbon wet cyclone and the second-order separation mechanism, the material inlet of reactor is connected with feed line by pipeline, the material outlet of reactor is connected by the opening for feed of pipeline with one-level wet cyclone, the bottom discharge mouth of one-level wet cyclone is connected by the underfeed mouth of pipeline with primary ion liquid slurry tank, the top discharge mouth of primary ion liquid slurry tank is connected to the second-order separation mechanism by pipeline after a valve is connected with the top discharge mouth of one-level wet cyclone, the bottom discharge mouth of primary ion liquid slurry tank is connected by the entrance of pipeline with ionic liquid recycle pump, ionic liquid circulation pump outlet is connected by the opening for feed of pipeline with de-hydrocarbon wet cyclone, the bottom discharge mouth of de-hydrocarbon wet cyclone is connected with the catalyst inlet of reactor by pipeline, the top discharge mouth of de-hydrocarbon wet cyclone is connected with the ionic liquid opening for feed of reactor through a valve by pipeline.
2. a kind of device reducing molten hydrocarbon in ionic liquid catalyst according to claim 1, is characterized in that: described the second-order separation mechanism comprises secondary rotary liquid/gas separator and secondary ion liquid slurry tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610967.1U CN204918490U (en) | 2015-08-13 | 2015-08-13 | Dissolve device of hydrocarbon in reduction ion liquid catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610967.1U CN204918490U (en) | 2015-08-13 | 2015-08-13 | Dissolve device of hydrocarbon in reduction ion liquid catalyst |
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| Publication Number | Publication Date |
|---|---|
| CN204918490U true CN204918490U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520610967.1U Expired - Fee Related CN204918490U (en) | 2015-08-13 | 2015-08-13 | Dissolve device of hydrocarbon in reduction ion liquid catalyst |
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| Country | Link |
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| CN (1) | CN204918490U (en) |
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2015
- 2015-08-13 CN CN201520610967.1U patent/CN204918490U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180813 |