CN204958828U - A reactor for alkylate is synthetic - Google Patents
A reactor for alkylate is synthetic Download PDFInfo
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- CN204958828U CN204958828U CN201520588742.0U CN201520588742U CN204958828U CN 204958828 U CN204958828 U CN 204958828U CN 201520588742 U CN201520588742 U CN 201520588742U CN 204958828 U CN204958828 U CN 204958828U
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Abstract
The utility model discloses a reactor for alkylate is synthetic, including reactor barrel 1, the reactor barrel is by straight section of thick bamboo section 2, wide footpath section 21 with lie in straight section of thick bamboo section and form with the changeover portion 5 between the section of wide footpath, be provided with tube sheet 14 under the inner tube in a straight section of thick bamboo section lower part, the tube sheet 12 under the outer tube, are provided with tube sheet 4 in handing -over department of straight section and changeover portion, 9 upper ends of outer tube and lower extreme respectively with last tube sheet and outer tube under the tube sheet be connected, the well top of inner tube 10 sets up inside the outer tube, the upper end of inner tube is the cecum, the tube sheet is connected under the lower extreme of inner tube and the inner tube, set up porosely on the inner tube, compare with current industrial reaction ware, sour hydrocarbon contact is effectual, quicken the reaction rate, reduce the reactor size, it compares to reduce alkane alkene simultaneously, and can rigorously enforce the controlled reaction temperature, reduce the production of byproduct of reaction, thereby improve the output and the quality of alkanisation cogasin, and can reduce the required energy consumption of isobutane circulation.
Description
Technical field
The utility model relates to a kind of reactor for alkylate oil synthesis, belongs to chemical field.
Background technology
The stop bracket gasoline harmonic component that C4 alkene and Trimethylmethane through the technical octane that alkylated reaction generates are is main component with various trimethylpentane, the advantages such as the vapour pressure that technical octane has high-octane rating, the noxious products that burns is few and lower.Alkylated reaction can be divided into alkyl sodium sulfate metallization processes and hydrofluoric acid alkylation technique according to used catalyst difference, hydrofluoric acid is volatile hypertoxic pharmaceutical chemicals, serious harm will be caused to environment and production once reveal, and alkyl sodium sulfate metallization processes main drawback to be the quantity discharged of spent acid larger.China's many employings alkyl sodium sulfate metallization processes, it is generally acknowledged that the rate-determining steps determining sulfuric acid alkylation technological reaction speed is the mass transfer of alkane to acid, therefore in alkyl sodium sulfate metallization processes, the contact situation of sour hydrocarbon is extremely important operational variable.The main alkyl sodium sulfate metallization processes of order first two is the effluent refrigeration-type sulfuric acid alkylation reaction process of Stratco company of the U.S. and the cascade reactor alkyl sodium sulfate metallization processes of Kellogg company of the U.S., these two kinds of techniques all fail to reach desirable sour hydrocarbon exposure level, greatly limit speed of reaction, add reactor size.In addition alkyl sodium sulfate metallization processes or a strong exothermal reaction, temperature of reaction rising can make by product increase, and affects alkylate oil quality.
Utility model content
The purpose of this utility model is to provide a kind of reactor for alkylate oil synthesis that can solve sour hydrocarbon contact problems and exothermic heat of reaction problem in alkyl sodium sulfate metallization processes.
Second object of the present utility model is to provide the another kind of reactor for alkylate oil synthesis.
The technical solution of the utility model is summarized as follows:
For the reactor of alkylate oil synthesis, comprise reactor shell 1, reactor shell is by direct tube section 2, wide path 21, and the transition section 5 between direct tube section and wide path forms, the upper end of wide path is connected with upper cover 6, the lower end of direct tube section is connected with lower cover 15, direct tube section bottom is provided with interior pipe lower tubesheet 14, more than direct tube section bottom, interior pipe lower tubesheet, is provided with outer tube lower tubesheet 12, the junction of direct tube section and transition section is provided with upper tubesheet 4, outer tube 9 top and bottom are connected with upper tubesheet and outer tube lower tubesheet respectively, the middle and upper part of interior pipe 10 is divided and is arranged portion within the outer tube, the upper end of interior pipe is cecum, the lower end of interior pipe is connected with interior pipe lower tubesheet, interior pipe is arranged porose, the top of interior pipe is between upper tubesheet and outer tube lower tubesheet, within direct tube section, outer tube is to be outside equipped with baffle 18, lower cover is provided with the first opening for feed 16, direct tube section between interior pipe lower tubesheet and outer tube lower tubesheet is provided with the second opening for feed 17, wide path is provided with discharge port 7, transition section is provided with sour loop exit 8, heat-eliminating medium outlet 3 is provided with on the top of direct tube section, in the bottom of direct tube section, more than outer tube lower tubesheet be provided with cooling medium inlet 11, be connected with the acid circulation import 13 on the direct tube section between interior pipe lower tubesheet and outer tube lower tubesheet after acid loop exit 8 is connected with pump 19 by pipeline, the pipeline that pump 19 is connected with sour circulation import 13 is provided with spent acid relief outlet 20.
Outer tube 9 is smooth pipe or finned tube or spiral tube.
Within outer tube and interior pipe can also be provided with filler with the external space.
The another kind of reactor being used for alkylate oil synthesis, comprise reactor shell 31, upper cover 34 and lower cover 42, reactor shell bottom is provided with interior pipe lower tubesheet 41, in reactor shell bottom, more than interior pipe lower tubesheet be provided with outer tube lower tubesheet 39, the junction of reactor shell and upper cover is provided with upper tubesheet 33, the top and bottom of outer tube 36 are connected with upper tubesheet and outer tube lower tubesheet respectively, the middle and upper part of interior pipe 37 is divided and is arranged portion within the outer tube, the upper end of interior pipe is cecum, the lower end of interior pipe is connected with interior pipe lower tubesheet, interior pipe is arranged porose, the top of interior pipe is between upper tubesheet and outer tube lower tubesheet, at reactor shell to be provided with baffle 45 beyond inner and outer pipes, lower cover is provided with the first opening for feed 43, reactor shell between interior pipe lower tubesheet and outer tube lower tubesheet is provided with the second opening for feed 44, upper cover is provided with discharge port 35, discharge port 35 is connected with phase separation tank 46 by pipeline, the top of phase separation tank is provided with reactant discharge port 47, the bottom of phase separation tank is provided with sour loop exit 48, be connected with the acid circulation import 40 on the reactor shell between interior pipe lower tubesheet and outer tube lower tubesheet after acid loop exit is connected with pump 49 by pipeline, heat-eliminating medium outlet 32 is provided with on the top of reactor shell, in the bottom of reactor shell, more than outer tube lower tubesheet be provided with cooling medium inlet 38, the pipeline that pump 49 is connected with sour circulation import 40 is provided with spent acid relief outlet 50.
Outer tube 36 is smooth pipe or finned tube or spiral tube.
Within outer tube and interior pipe can also be provided with filler with the external space.
The utility model has the advantages that:
Compared with existing industrial reactor, the contact of acid hydrocarbon is effective, accelerate speed of reaction, reduce reactor size, reduce alkane alkene ratio simultaneously, and strictly can control temperature of reaction, reduce the generation of byproduct of reaction, thus improve the quantity and quality of alkylation synthetic oil, and the energy consumption needed for Trimethylmethane circulation can be reduced.
Accompanying drawing explanation
Fig. 1 is the structure of reactor schematic diagram for alkylate oil synthesis.
Fig. 2 is the structural representation of the reactor that the second synthesizes for alkylate oil.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following explanation understands the utility model better to enable those skilled in the art to, but do not impose any restrictions the utility model.
Embodiment 1
For the reactor of alkylate oil synthesis, comprise reactor shell 1, reactor shell is by direct tube section 2, wide path 21, and the transition section 5 between direct tube section and wide path forms, the upper end of wide path is connected with upper cover 6, the lower end of direct tube section is connected with lower cover 15, direct tube section bottom is provided with interior pipe lower tubesheet 14, more than direct tube section bottom, interior pipe lower tubesheet, is provided with outer tube lower tubesheet 12, the junction of direct tube section and transition section is provided with upper tubesheet 4, outer tube 9 top and bottom are connected with upper tubesheet and outer tube lower tubesheet respectively, the middle and upper part of interior pipe 10 is divided and is arranged portion within the outer tube, the upper end of interior pipe is cecum, the lower end of interior pipe is connected with interior pipe lower tubesheet, interior pipe is arranged porose, the top of interior pipe is between upper tubesheet and outer tube lower tubesheet, within direct tube section, outer tube is to be outside equipped with baffle 18, lower cover is provided with the first opening for feed 16, direct tube section between interior pipe lower tubesheet and outer tube lower tubesheet is provided with the second opening for feed 17, wide path is provided with discharge port 7, transition section is provided with sour loop exit 8, heat-eliminating medium outlet 3 is provided with on the top of direct tube section, in the bottom of direct tube section, more than outer tube lower tubesheet be provided with cooling medium inlet 11, be connected with the acid circulation import 13 on the direct tube section between interior pipe lower tubesheet and outer tube lower tubesheet after acid loop exit 8 is connected with pump 19 by pipeline, the pipeline that pump 19 is connected with sour circulation import 13 is provided with spent acid relief outlet 20.
Outer tube 9 is smooth pipe or finned tube or spiral tube.
Within outer tube and interior pipe can also be provided with filler with the external space.The kind of filler is preferred: Pall ring filler or ring intalox filler, also can select other conventional filler.
When above-mentioned reactor is used for alkylate oil building-up reactions, for Pilot Unit, the diameter of reactor shell is 80mm, is highly 1600mm, and wide path diameter is 200mm, is highly 500mm.Transition section height is 150mm.
3 outer tubes, the caliber of outer tube is 9mm, and pipe range is 1500mm, is smooth pipe, and the caliber of interior pipe (10) is 5mm, and pipe range is 1200mm, and the distance between interior pipe lower tubesheet and outer tube lower tubesheet is 100mm; Within outer tube and interior pipe with the external space, filler is not set, interior pipe evenly arranges aperture on whole axial length, aperture 0.5mm.
98% vitriol oil enters outer tube from the second opening for feed at 6 DEG C, needing to add enough vitriol oils at the beginning makes it be full of whole outer tube, after this vitriol oil inlet flow rate is set to 1.5L/h, ensure that in reactor, vitriol oil concentration maintains 95%, Trimethylmethane and isobutene mixture enter interior pipe from the first opening for feed at 6 DEG C, Trimethylmethane and iso-butylene volume ratio are 6:1, and feed rate is 50L/h, and feed pressure is 0.5MPaG (gauge pressure); Adopt chilled brine as heat-eliminating medium, circulating frozen salt solution enters from cooling medium inlet at 0 DEG C, and go out from cooling media outlet, temperature out is 5 DEG C.Reaction product and the complete Trimethylmethane of unreacted go out from discharge port, and temperature is 6 DEG C.Sulfuric acid, from sour loop exit, sends reactor by pump back to through acid circulation import, is discharged the spent acid of 1.5L/h by the spent acid relief outlet on pump discharge line bypass simultaneously.By carrying out sampling analysis to the reaction product of discharge port, isobutene conversion reaches more than 98%, in reaction product, octane-iso massfraction is more than 30%, reaction product octane value is about 98, experimental result shows, the reactor for alkylate oil synthesis achieves the effect of good alkylate oil synthesis.
Embodiment 2
The another kind of reactor being used for alkylate oil synthesis, comprise reactor shell 31, upper cover 34 and lower cover 42, reactor shell bottom is provided with interior pipe lower tubesheet 41, in reactor shell bottom, more than interior pipe lower tubesheet be provided with outer tube lower tubesheet 39, the junction of reactor shell and upper cover is provided with upper tubesheet 33, the top and bottom of outer tube 36 are connected with upper tubesheet and outer tube lower tubesheet respectively, the middle and upper part of interior pipe 37 is divided and is arranged portion within the outer tube, the upper end of interior pipe is cecum, the lower end of interior pipe is connected with interior pipe lower tubesheet, interior pipe is arranged porose, the top of interior pipe is between upper tubesheet and outer tube lower tubesheet, at reactor shell to be provided with baffle 45 beyond inner and outer pipes, lower cover is provided with the first opening for feed 43, reactor shell between interior pipe lower tubesheet and outer tube lower tubesheet is provided with the second opening for feed 44, upper cover is provided with discharge port 35, discharge port 35 is connected with phase separation tank 46 by pipeline, the top of phase separation tank is provided with reactant discharge port 47, the bottom of phase separation tank is provided with sour loop exit 48, be connected with the acid circulation import 40 on the reactor shell between interior pipe lower tubesheet and outer tube lower tubesheet after acid loop exit is connected with pump 49 by pipeline, heat-eliminating medium outlet 32 is provided with on the top of reactor shell, in the bottom of reactor shell, more than outer tube lower tubesheet be provided with cooling medium inlet 38, the pipeline that pump 49 is connected with sour circulation import 40 is provided with spent acid relief outlet 50.
Outer tube 36 is smooth pipe or finned tube or spiral tube.
Within outer tube and interior pipe can also be provided with filler with the external space.The kind of filler is preferred: Pall ring filler or ring intalox filler, also can select other conventional filler.
When above-mentioned reactor is used for alkylate oil building-up reactions, for Pilot Unit, the diameter of reactor shell is 80mm, is highly 1600mm, and phase separation tank diameter is 200mm, height 400mm.
3 outer tubes, the caliber of outer tube is 9mm, and pipe range is 1500mm, is smooth pipe, and the caliber of interior pipe (10) is 5mm, and pipe range is 1200mm, and the distance between interior pipe lower tubesheet and outer tube lower tubesheet is 100mm; Within outer tube and interior pipe with the external space, filler is not set, interior pipe evenly arranges aperture on whole axial length, aperture 0.5mm.
98% vitriol oil enters outer tube from the second opening for feed at 6 DEG C, needing to add enough vitriol oils at the beginning makes it be full of whole outer tube, after this vitriol oil inlet flow rate is set to 1.5L/h, ensure that in reactor, vitriol oil concentration maintains 95%, Trimethylmethane and isobutene mixture enter interior pipe from the first opening for feed at 6 DEG C, Trimethylmethane and iso-butylene volume ratio are 6:1, and feed rate is 50L/h, and feed pressure is 0.5MPaG (gauge pressure); Adopt chilled brine as heat-eliminating medium, circulating cooling medium enters from cooling medium inlet at 0 DEG C, and go out from cooling media outlet, heat-eliminating medium temperature out is 5 DEG C.6 DEG C of reaction masses go out from discharge port, enter phase separation tank, after phase separation tank completes phase-splitting, reaction product and the complete Trimethylmethane autoreaction thing discharge port of unreacted go out, sulfuric acid sends reactor by pump through acid circulation import from sour loop exit, is discharged the spent acid of 1.5L/h by the spent acid relief outlet on pump discharge line bypass simultaneously.By carrying out sampling analysis to the reaction product of reactant discharge port, isobutene conversion reaches more than 98%, in reaction product, octane-iso massfraction is more than 32%, reaction product octane value about 100, experimental result shows, the reactor for alkylate oil synthesis achieves the effect of good alkylate oil synthesis.
Claims (6)
1. for the reactor of alkylate oil synthesis, comprise reactor shell (1), reactor shell is by direct tube section (2), wide path (21), and transition section (5) composition between direct tube section and wide path, the upper end of wide path is connected with upper cover (6), the lower end of direct tube section is connected with lower cover (15), interior pipe lower tubesheet (14) is provided with in direct tube section bottom, more than direct tube section bottom, interior pipe lower tubesheet, be provided with outer tube lower tubesheet (12), the junction of direct tube section and transition section is provided with upper tubesheet (4), outer tube (9) top and bottom are connected with upper tubesheet and outer tube lower tubesheet respectively, the middle and upper part of interior pipe (10) is divided and is arranged portion within the outer tube, the upper end of interior pipe is cecum, the lower end of interior pipe is connected with interior pipe lower tubesheet, interior pipe is arranged porose, the top of interior pipe is between upper tubesheet and outer tube lower tubesheet, within direct tube section, outer tube is to be outside equipped with baffle (18), lower cover is provided with the first opening for feed (16), direct tube section between interior pipe lower tubesheet and outer tube lower tubesheet is provided with the second opening for feed (17), wide path is provided with discharge port (7), transition section is provided with sour loop exit (8), heat-eliminating medium outlet (3) is provided with on the top of direct tube section, in the bottom of direct tube section, more than outer tube lower tubesheet be provided with cooling medium inlet (11), acid loop exit (8) is connected with the acid circulation import (13) on the direct tube section between interior pipe lower tubesheet and outer tube lower tubesheet after being connected with pump (19) by pipeline, the pipeline that pump (19) is connected with sour circulation import (13) is provided with spent acid relief outlet (20).
2. the reactor for alkylate oil synthesis according to claim 1, is characterized in that outer tube (9) is smooth pipe or finned tube or spiral tube.
3. the reactor for alkylate oil synthesis according to claim 1, within outer tube and beyond interior pipe, spatial placement has filler.
4. for the reactor of alkylate oil synthesis, comprise reactor shell (31), upper cover (34) and lower cover (42), interior pipe lower tubesheet (41) is provided with in reactor shell bottom, in reactor shell bottom, more than interior pipe lower tubesheet be provided with outer tube lower tubesheet (39), the junction of reactor shell and upper cover is provided with upper tubesheet (33), the top and bottom of outer tube (36) are connected with upper tubesheet and outer tube lower tubesheet respectively, the middle and upper part of interior pipe (37) is divided and is arranged portion within the outer tube, the upper end of interior pipe is cecum, the lower end of interior pipe is connected with interior pipe lower tubesheet, interior pipe is arranged porose, the top of interior pipe is between upper tubesheet and outer tube lower tubesheet, at reactor shell to be provided with baffle (45) beyond inner and outer pipes, lower cover is provided with the first opening for feed (43), reactor shell between interior pipe lower tubesheet and outer tube lower tubesheet is provided with the second opening for feed (44), upper cover is provided with discharge port (35), discharge port 35 is connected with phase separation tank (46) by pipeline, the top of phase separation tank is provided with reactant discharge port (47), sour loop exit (48) is provided with in the bottom of phase separation tank, acid loop exit is connected with the acid circulation import (40) on the reactor shell between interior pipe lower tubesheet and outer tube lower tubesheet after being connected with pump (49) by pipeline, heat-eliminating medium outlet (32) is provided with on the top of reactor shell, in the bottom of reactor shell, more than outer tube lower tubesheet be provided with cooling medium inlet (38), the pipeline that pump (49) is connected with sour circulation import (40) is provided with spent acid relief outlet (50).
5. the reactor for alkylate oil synthesis according to claim 4, is characterized in that outer tube (36) is smooth pipe or finned tube or spiral tube.
6. the reactor for alkylate oil synthesis according to claim 4, within outer tube and beyond interior pipe, spatial placement has filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588742.0U CN204958828U (en) | 2015-08-06 | 2015-08-06 | A reactor for alkylate is synthetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588742.0U CN204958828U (en) | 2015-08-06 | 2015-08-06 | A reactor for alkylate is synthetic |
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| Publication Number | Publication Date |
|---|---|
| CN204958828U true CN204958828U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520588742.0U Withdrawn - After Issue CN204958828U (en) | 2015-08-06 | 2015-08-06 | A reactor for alkylate is synthetic |
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| Country | Link |
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| CN (1) | CN204958828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062554A (en) * | 2015-08-06 | 2015-11-18 | 天津大学 | Reactor for synthesis of alkylate oil |
-
2015
- 2015-08-06 CN CN201520588742.0U patent/CN204958828U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062554A (en) * | 2015-08-06 | 2015-11-18 | 天津大学 | Reactor for synthesis of alkylate oil |
| CN105062554B (en) * | 2015-08-06 | 2017-04-26 | 天津大学 | Reactor for synthesis of alkylate oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160113 Effective date of abandoning: 20170426 |
|
| AV01 | Patent right actively abandoned |