CN204911541U - Improve catalyst regeneration device that ion liquid extracts effect - Google Patents
Improve catalyst regeneration device that ion liquid extracts effect Download PDFInfo
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- CN204911541U CN204911541U CN201520610505.XU CN201520610505U CN204911541U CN 204911541 U CN204911541 U CN 204911541U CN 201520610505 U CN201520610505 U CN 201520610505U CN 204911541 U CN204911541 U CN 204911541U
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- ionic liquid
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- hydrocarbon recovery
- recovery tower
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Abstract
The utility model belongs to the chemical industry field discloses an improve catalyst regeneration device that ion liquid extracts effect very much. This improve catalyst regeneration device that ion liquid extracts effect, including ion liquid extraction column, ion liquid regeneration jar and C4 hydrocarbon recovery tower, the return tank discharge gate of locating return tank bottom one side divide into the three routes through the pipeline behind a backwash pump, the first via is linked together through a valve and outside caustic wash tower feed inlet, second lu jingyi valve is linked together with the C4 hydrocarbon recovery tower backward flow mouth of locating C4 hydrocarbon recovery tower upper portion one side, third lu jingyi heater is linked together with the extraction column C4 hydrocarbon feed inlet of locating ion liquid extraction column lower part one side. This improve catalyst regeneration device that ion liquid extracts effect, C4 hydrocarbon recovery tower get into ion liquid extraction column when carrying the C4 hydrocarbon extractant that comes to be heated to 60 DEG C, avoided because of operating temperature hangs down the circumstances that results in past subsequent handling to carry ion liquid, and operating conditions's improvement has also reduced the volume of dissolving in the hydrocarbon in the ion liquid.
Description
(1) technical field
The utility model belongs to chemical field, particularly a kind of catalyst regeneration device improving ionic liquid extraction rate was acquired.
(2) background technology
Alkylated reaction specifically refers to that iso-butane and alkene are obtained by reacting isoparaffin under the effect of catalyst, it is the conventional art in petroleum refining 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 properties of its uniqueness, as the designability etc. of extremely low vapour pressure, wide in range liquid temperature scope, good solvability, specific function, in alkylated reaction catalysis, cause the extensive concern of domestic and international many scholars.
In ionic liquid catalyst alkylation process, ionic liquid in use its activity can reduce gradually, needs to be transported to regenerating unit regeneration.When entering regenerating unit regeneration, extraction process must be used to extract the hydrocarbon component carried in ionic liquid, if ionic liquid is carried hydrocarbon component secretly and is entered regenerating unit, cracking reaction and condensation reaction will can be there is in hydrocarbon component in ionic liquid high temperature regeneration process, generating portion heavy reactant, have a strong impact on ionic liquid activity, extraction rate was acquired difference also can make regenerative system superpressure, causes unnecessary economic loss when pressure release.The important condition of extracting one is exactly carry out under needing the operating temperature of 35-40 DEG C.Only have the viscosity of ionic liquid at this temperature just can reduce, just fully can contact with C4 hydrocarbon extractant well, thus reach good extraction rate was acquired.The temperature that in present process conditions, ionic liquid autoreaction system to be generated is come is 26 DEG C, and the temperature that C4 hydrocarbon recovery tower is transported to the C4 hydrocarbon extractant of ionic liquid extraction tower only has 25-30 DEG C, and both obviously can not meet required operating condition.Temperature can not meet the problem that extraction conditions brings: 1, the molten hydrocarbon of extraction rate was acquired official post ionic liquid is too high, when ionic liquid enter regenerating tank carry out ramp regeneration time, molten hydrocarbon discharges and can cause regenerating tank superpressure, and superpressure discharge can cause unnecessary economic loss; 2, extraction rate was acquired difference causes C4 hydrocarbon extractant to carry ionic liquid secretly when ionic liquid extraction tower enters C4 hydrocarbon recovery tower, causes tower tray to block, thus brings very large burden to the operation of C4 recovery tower; If 3, ionic liquid is carried hydrocarbon component secretly and entered regenerating unit, will can there is cracking reaction and condensation reaction in hydrocarbon component, generating portion heavy reactant, has a strong impact on ionic liquid activity in ionic liquid high temperature regeneration process.
(3) summary of the invention
The utility model is in order to make up the deficiencies in the prior art, provide that a kind of operating temperature, ionic liquid reduced in C4 hydrocarbon extractant improving ionic liquid extraction tower is carried, the catalyst regeneration device of the raising ionic liquid extraction rate was acquired of the molten hydrocarbon amount reduced in ionic liquid, solve problems of the prior art.
The utility model is achieved by the following technical solution:
A kind of catalyst regeneration device improving ionic liquid extraction rate was acquired, comprise ionic liquid extraction tower, ionic liquid regenerating tank and C4 hydrocarbon recovery tower, the extraction tower ionic liquid to be generated charging aperture being located at side, ionic liquid extraction tower top is connected with ionic liquid pipeline to be generated through a valve by pipeline, the extraction tower bottom discharge mouth be located at bottom ionic liquid extraction tower is connected with the regenerating tank charging aperture being located at side, ionic liquid regenerating tank top through a valve by pipeline, the extraction tower top discharge mouth being located at ionic liquid extraction tower top is connected with the C4 hydrocarbon recovery tower charging aperture being located at side, C4 hydrocarbon recovery tower top by pipeline, the C4 hydrocarbon recovery tower top discharge mouth being located at C4 hydrocarbon recovery tower top is connected with return tank first charging aperture being located at side, return tank top through a valve by pipeline one tunnel after an air cooler, another Lu Jingyi valve is connected with return tank second charging aperture being located at return tank top opposite side, the return tank discharging opening being located at side bottom return tank is divided into three tunnels by pipeline after a reflux pump, the first via is connected with the caustic wash tower of outside through a valve, second tunnel one valve is connected with the C4 hydrocarbon recovery tower refluxing opening being located at side, C4 hydrocarbon recovery tower top, 3rd tunnel one heater is connected with the extraction tower C4 hydrocarbon charging aperture being located at side, ionic liquid extraction tower bottom, the C4 hydrocarbon recovery tower bottom discharge mouth be located at bottom C4 hydrocarbon recovery tower is connected with the C4 hydrocarbon recovery tower thermal material return port being located at side, C4 hydrocarbon recovery tower bottom after a reboiler by pipeline one tunnel, another Lu Jingyi C4 hydrocarbon column bottoms pump is connected with caustic wash tower.
The beneficial effects of the utility model are: the catalyst regeneration device of this raising ionic liquid extraction rate was acquired, reasonable in design, before the C4 hydrocarbon extractant that C4 hydrocarbon recovery tower transports enters ionic liquid extraction tower, the heater be arranged between return tank discharging opening and extraction tower C4 hydrocarbon charging aperture heats (thermal source also can use conduction oil with steam), C4 hydrocarbon extractant enters ionic liquid extraction tower when being heated to 60 DEG C, just can ensure that the operating temperature of ionic liquid extraction tower is more than 35 DEG C.After the operating temperature rising of ionic liquid extraction tower, avoid the situation causing carrying toward subsequent handling ionic liquid because operating temperature is low, the improvement of operating condition also reduces the molten hydrocarbon amount in ionic liquid, avoid the economic loss brought when ionic liquid enters the ionic liquid regenerating tank superpressure and superpressure discharge that cause when ionic liquid regenerating tank carries out ramp regeneration, it also avoid the hydrocarbon component that ionic liquid carries secretly and enter regenerating unit, cracking reaction and condensation reaction is there is in hydrocarbon component in ionic liquid high temperature regeneration process, generating portion heavy reactant has a strong impact on the phenomenon of ionic liquid activity.
(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 ionic liquid extraction tower, 2 ionic liquid regenerating tank, 3C4 hydrocarbon recovery tower, 4 extraction tower ionic liquid charging aperture to be generated, 5 extraction tower bottom discharge mouths, 6 regenerating tank charging apertures, 7 extraction tower top discharge mouths, 8C4 hydrocarbon recovery tower charging aperture, 9C4 hydrocarbon recovery tower top discharge mouth, 10 air coolers, 11 return tanks, 12 return tank first charging apertures, 13 return tank second charging apertures, 14 return tank discharging openings, 15 reflux pumps, 16C4 hydrocarbon recovery tower refluxing opening, 17 heaters, 18 extraction tower C4 hydrocarbon charging apertures, 19C4 hydrocarbon recovery tower bottom discharge mouth, 20 reboilers, 21C4 hydrocarbon recovery tower thermal material return port, 22C4 hydrocarbon column bottoms pump.
(5) detailed description of the invention
For clearly demonstrating the technical characterstic of this programme, below by detailed description of the invention, and in conjunction with its accompanying drawing, the utility model is elaborated.
As shown in fig. 1, this embodiment comprises ionic liquid extraction tower 1, ionic liquid regenerating tank 2 and C4 hydrocarbon recovery tower 3, the extraction tower ionic liquid to be generated charging aperture 4 being located at side, ionic liquid extraction tower 1 top is connected with ionic liquid pipeline to be generated through a valve by pipeline, the extraction tower bottom discharge mouth 5 be located at bottom ionic liquid extraction tower 1 is connected with the regenerating tank charging aperture 6 being located at side, ionic liquid regenerating tank 2 top through a valve by pipeline, the extraction tower top discharge mouth 7 being located at ionic liquid extraction tower 1 top is connected with the C4 hydrocarbon recovery tower charging aperture 8 being located at side, C4 hydrocarbon recovery tower 3 top by pipeline, the C4 hydrocarbon recovery tower top discharge mouth 9 being located at C4 hydrocarbon recovery tower 3 top is connected with return tank first charging aperture 12 being located at side, return tank 11 top through a valve by pipeline one tunnel after an air cooler 10, another Lu Jingyi valve is connected with return tank second charging aperture 13 being located at return tank 11 top opposite side, the return tank discharging opening 14 being located at side bottom return tank 11 is divided into three tunnels by pipeline after a reflux pump 15, the first via is connected with the caustic wash tower of outside through a valve, second tunnel one valve is connected with the C4 hydrocarbon recovery tower refluxing opening 16 being located at side, C4 hydrocarbon recovery tower 3 top, 3rd tunnel one heater 17 is connected with the extraction tower C4 hydrocarbon charging aperture 18 being located at side, ionic liquid extraction tower 1 bottom, the C4 hydrocarbon recovery tower bottom discharge mouth 19 be located at bottom C4 hydrocarbon recovery tower 3 is connected with the C4 hydrocarbon recovery tower thermal material return port 21 being located at side, C4 hydrocarbon recovery tower 3 bottom after a reboiler 20 by pipeline one tunnel, another Lu Jingyi C4 hydrocarbon column bottoms pump 22 is connected with caustic wash tower.
The production technology that the utility model improves the catalyst regeneration device of ionic liquid extraction rate was acquired is:
Ionic liquid to be regenerated is after the extraction of ionic liquid rotary filter press pump enters cyclone hydraulic separators concentrate, ionic liquid extraction tower 1 is entered from extraction tower ionic liquid charging aperture 4 to be generated through self-pressure, in ionic liquid extraction tower 1, ionic liquid contacts with C4 hydrocarbon extractant from top to bottom, extract the hydro carbons of carry in ionic liquid more than 98% through C4 hydrocarbon extractant, the ionic liquid after extracting enters ionic liquid regenerating tank 2 through the discharge of extraction tower bottom discharge mouth 5 and carries out circular regeneration.The hydro carbons of C4 hydrocarbon extractant and extraction enters C4 hydrocarbon recovery tower 3 from extraction tower top discharge mouth 7 self-pressure by C4 hydrocarbon recovery tower charging aperture 8.In C4 hydrocarbon recovery tower 3, each component carries out fractionation, after C4 hydrocarbon extractant is separated from hydro carbons, discharge after return tank 11 condensation by C4 hydrocarbon recovery tower top discharge mouth 9, operative liquid C4 hydrocarbon extractant enters into ionic liquid extraction tower 1 through reflux pump 15 by extraction tower C4 hydrocarbon charging aperture 18, recycle, heavy constituent hydro carbons is then sent to alkali cleaning post by C4 hydrocarbon column bottoms pump 22 from the extraction of C4 hydrocarbon recovery tower 3.
The utility model improves the catalyst regeneration device of ionic liquid extraction rate was acquired, before the C4 hydrocarbon extractant transported at C4 hydrocarbon recovery tower 3 enters ionic liquid extraction tower 1, the heater 17 be arranged between reflux pump 15 and extraction tower C4 hydrocarbon charging aperture 18 heats (thermal source also can use conduction oil with steam), C4 hydrocarbon extractant enters ionic liquid extraction tower 1 when being heated to 60 DEG C, just can ensure that the operating temperature of ionic liquid extraction tower 1 is more than 35 DEG C.After the operating temperature rising of ionic liquid extraction tower 1, avoid the situation causing carrying toward subsequent handling ionic liquid because operating temperature is low, the improvement of operating condition also reduces the molten hydrocarbon amount in ionic liquid, avoid the economic loss brought when ionic liquid enters ionic liquid regenerating tank 2 superpressure and superpressure discharge that cause when ionic liquid regenerating tank 2 carries out ramp regeneration, it also avoid the hydrocarbon component that ionic liquid carries secretly and enter regenerating unit, cracking reaction and condensation reaction is there is in hydrocarbon component in ionic liquid high temperature regeneration process, generating portion heavy reactant has a strong impact on the phenomenon of ionic liquid activity.
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 (1)
1. one kind is improved the catalyst regeneration device of ionic liquid extraction rate was acquired, it is characterized in that: comprise ionic liquid extraction tower, ionic liquid regenerating tank and C4 hydrocarbon recovery tower, the extraction tower ionic liquid to be generated charging aperture being located at side, ionic liquid extraction tower top is connected with ionic liquid pipeline to be generated through a valve by pipeline, the extraction tower bottom discharge mouth be located at bottom ionic liquid extraction tower is connected with the regenerating tank charging aperture being located at side, ionic liquid regenerating tank top through a valve by pipeline, the extraction tower top discharge mouth being located at ionic liquid extraction tower top is connected with the C4 hydrocarbon recovery tower charging aperture being located at side, C4 hydrocarbon recovery tower top by pipeline, the C4 hydrocarbon recovery tower top discharge mouth being located at C4 hydrocarbon recovery tower top is connected with return tank first charging aperture being located at side, return tank top through a valve by pipeline one tunnel after an air cooler, another Lu Jingyi valve is connected with return tank second charging aperture being located at return tank top opposite side, the return tank discharging opening being located at side bottom return tank is divided into three tunnels by pipeline after a reflux pump, the first via is connected with the caustic wash tower of outside through a valve, second tunnel one valve is connected with the C4 hydrocarbon recovery tower refluxing opening being located at side, C4 hydrocarbon recovery tower top, 3rd tunnel one heater is connected with the extraction tower C4 hydrocarbon charging aperture being located at side, ionic liquid extraction tower bottom, the C4 hydrocarbon recovery tower bottom discharge mouth be located at bottom C4 hydrocarbon recovery tower is connected with the C4 hydrocarbon recovery tower thermal material return port being located at side, C4 hydrocarbon recovery tower bottom after a reboiler by pipeline one tunnel, another Lu Jingyi C4 hydrocarbon column bottoms pump is connected with caustic wash tower.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610505.XU CN204911541U (en) | 2015-08-13 | 2015-08-13 | Improve catalyst regeneration device that ion liquid extracts effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610505.XU CN204911541U (en) | 2015-08-13 | 2015-08-13 | Improve catalyst regeneration device that ion liquid extracts effect |
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| CN204911541U true CN204911541U (en) | 2015-12-30 |
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| CN201520610505.XU Expired - Fee Related CN204911541U (en) | 2015-08-13 | 2015-08-13 | Improve catalyst regeneration device that ion liquid extracts effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592912A (en) * | 2020-05-31 | 2020-08-28 | 南京克米斯璀新能源科技有限公司 | Alkylation method and alkylation equipment |
| CN115193488A (en) * | 2021-04-13 | 2022-10-18 | 中国石化工程建设有限公司 | Ionic liquid regeneration method and system and ionic liquid alkylation device |
-
2015
- 2015-08-13 CN CN201520610505.XU patent/CN204911541U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592912A (en) * | 2020-05-31 | 2020-08-28 | 南京克米斯璀新能源科技有限公司 | Alkylation method and alkylation equipment |
| CN115193488A (en) * | 2021-04-13 | 2022-10-18 | 中国石化工程建设有限公司 | Ionic liquid regeneration method and system and ionic liquid alkylation device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |