CN207941533U - Reaction unit applied to benzene alkylation - Google Patents
Reaction unit applied to benzene alkylation Download PDFInfo
- Publication number
- CN207941533U CN207941533U CN201721920183.4U CN201721920183U CN207941533U CN 207941533 U CN207941533 U CN 207941533U CN 201721920183 U CN201721920183 U CN 201721920183U CN 207941533 U CN207941533 U CN 207941533U
- Authority
- CN
- China
- Prior art keywords
- reactor
- steam
- reaction unit
- nitrogen
- benzene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of reaction unit applied to benzene alkylation, including：Reactor, wherein being mounted with solid acid catalyst to be regenerated；Steam inlet, nitrogen inlet, air intake, condensate drain valve, drain, sample tap and on-line sampler are provided on the reactor.Device described in the utility model, which includes steam inlet, to purge steam, there is nitrogen inlet that can be passed through nitrogen, the deficiency for compensating for hot benzene washing method is mended with the regeneration method of its solid acid catalyst carried out, solves the problems, such as the removal of insoluble matter, and it is easy to operate, it is easy to implement.
Description
Technical field
The utility model belongs to technical field of organic synthesis, and in particular to a kind of reaction unit applied to benzene alkylation.
Background technology
Linear alkylbenzene (LAB) (LAB) is the important intermediate for producing detergent, and industrial production mainly uses U.S. UOP public at present
The HF Catalytic processes of department.Due to the corrosivity and toxicity that HF is strong, the technique there are technological process is complicated and environmental issue, because
This, becomes inevitable development trend using non-corrosive solid acid technology generations for HF techniques.Current industrialized solid acid work
Skill is the Detal techniques of Uop Inc., although it overcomes the deficiency of HF techniques, but still existing defects, catalyst often need for 24 hours
It regenerates 1 time.At the same time Tsinghua University's chemical industry system develops the alkylbenzene new process using modified beta zeolite catalyst, overcomes
The detergent of the deficiencies of traditional HF techniques, preparation is easier biodegradation, however modified beta zeolite catalyst is equally easy to lose
Living, single pass life is short, needs regenerated from washing repeatedly.But traditional hot benzene regenerated from washing method can not by solid acid catalyst surface with
And all substances in duct remove, the product that the floating carbon, catalyst in catalyst surface and duct generate in process of production
Carbon can be accumulated slowly, these substances are difficult to dissolve and remove in hot benzene, after catalyst carries out about 30 hot benzene regeneration just
Can Severe blockage catalyst duct, this just needs to find a kind of new method and is removed to the above substance.
Utility model content
In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of reaction dresses applied to benzene alkylation
It sets, at least one of to solve the above problems.
The utility model is achieved by the following technical solution：
The utility model provides a kind of reaction unit applied to benzene alkylation, including：
Reactor, wherein being mounted with solid acid catalyst to be regenerated；Steam inlet, nitrogen are provided on the reactor
Entrance, air intake, condensate drain valve, drain, sample tap and on-line sampler, wherein：
Steam inlet is located at reactor bottom, purges steam for being passed through；
Nitrogen inlet is located at reactor side, for being passed through nitrogen；
Air intake is located at reactor side, for being passed through air；
Condensate drain valve is located at reactor bottom, for excluding steam condensate；
Drain is located at reactor head, for excluding excessive purge steam；
Sample tap is located at upper, the neutralization lower position of reactor, for being sampled in reaction process；And
On-line sampler is located at reactor bottom, for real time sample in reaction process.
Further, the reaction unit applied to benzene alkylation also packet lip ring is located at the top of inside reactor
Portion prevents reaction solution erosion corrosion reactor.
Further, the reaction unit applied to benzene alkylation further includes sieve, is located at reactor bottom, is used for
Support solid acid catalyst.
It can be seen from the above technical proposal that the reaction unit applied to benzene alkylation of the utility model has with following
Beneficial effect：
(1) device described in the utility model, which includes steam inlet, to purge steam, and have nitrogen inlet that can be passed through nitrogen,
The deficiency for compensating for hot benzene washing method is mended with the regeneration method of its solid acid catalyst carried out, the removal for solving insoluble matter is asked
Topic.
(2) regeneration method of the solid acid catalyst carried out with device described in the utility model is mended easy to operate, is easy to real
It applies.
Description of the drawings
Fig. 1 is the regeneration schematic diagram of the solid acid catalyst of benzene alkylation in the utility model embodiment；
【Reference sign】
1- reactors；2- feed inlets；
3- air intakes；4-0.5MPa nitrogen inlet；
The steam inlets 5-；6- " 8 " word blind plate；
7- discharging flanges；8- discharge ports；
9- lip rings；10- sieves；
11- blow-down pipes；The tops 12- sample tap；
Sample tap in the middle part of 13-；The lower parts 14- sample tap；
15- on-line samplers；16- condensate drain pipelines.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with specific embodiment, and
With reference to attached drawing, the utility model is described in further detail.
The utility model discloses a kind of reaction units applied to benzene alkylation, including：Reactor needs wherein loading
Regenerated solid acid catalyst；Steam inlet, nitrogen inlet, air intake, condensate drain valve, emptying are provided on the reactor
Mouth, sample tap and on-line sampler.Device described in the utility model, which includes steam inlet, to purge steam, and have nitrogen inlet can
To be passed through nitrogen, the deficiency for compensating for hot benzene washing method is mended with the regeneration method of its solid acid catalyst carried out, is solved not
The removal problem of molten object, and it is easy to operate, it is easy to implement.
Specifically, the utility model provides a kind of reaction unit applied to benzene alkylation, including：
Reactor, wherein being mounted with solid acid catalyst to be regenerated；Steam inlet, nitrogen are provided on the reactor
Entrance, air intake, condensate drain valve, drain, sample tap and on-line sampler, wherein：
Steam inlet is located at reactor bottom, purges steam for being passed through；
Nitrogen inlet is located at reactor side, for being passed through nitrogen；
Air intake is located at reactor side, for being passed through air；
Condensate drain valve is located at reactor bottom, for excluding steam condensate；
Drain is located at reactor head, for excluding excessive purge steam；
Sample tap is located at upper, the neutralization lower position of reactor, for being sampled in reaction process；And
On-line sampler is located at reactor bottom, for real time sample in reaction process.
Further, the reaction unit applied to benzene alkylation also packet lip ring is located at the top of inside reactor
Portion prevents reaction solution erosion corrosion reactor.
Further, the reaction unit applied to benzene alkylation further includes sieve, is located at reactor bottom, is used for
Support solid acid catalyst.
Below in conjunction with specific embodiments and the drawings, the reaction unit provided by the utility model applied to benzene alkylation is made
It is further to be described in detail.
Embodiment
A kind of reaction unit applied to benzene alkylation, Fig. 1 are the schematic diagram of the reaction unit of benzene alkylation.Such as Fig. 1 institutes
Show, the reaction unit of benzene alkylation includes reactor 1, feed inlet 2, air intake 3, nitrogen inlet 4, steam inlet 5, " 8 " word
Blind plate 6, discharging flange 7, discharge port 8, lip ring 9, sieve 10, blow-down pipe 11, top sample tap 12, middle part sample tap 13,
Lower part sample tap 14, on-line sampler 15 and condensate drain pipeline 16.
Wherein, steam inlet is located at reactor bottom, purges steam for being passed through；Condensate drain valve is located at reactor bottom, uses
In exclusion steam condensate；Drain is located at reactor head, for excluding excessive purge steam；3 sample taps, difference position
It is set in the upper, middle and lower portion of reactor, for being sampled in reaction process；On-line sampler is located at reactor bottom, for anti-
Real time sample during answering；Feed inlet is located at reactor head；Nitrogen inlet is located at reactor side；Air intake position
In reactor side and discharge port, it is located at reactor bottom.
Wherein, lip ring is located at the top of inside reactor, prevents reaction solution erosion corrosion reactor；
Sieve is located at reactor bottom, is used to support solid catalyst.
The regeneration method of a kind of solid acid catalyst applied to benzene alkylation, using aforementioned applications in the dress of benzene alkylation
It sets, includes the following steps：
(1) stop, into raw material, being passed through and purging steam from reactor bottom, steam pressure 1.5MPa, 190 DEG C of regeneration temperature,
Recovery time 8h, steam condensate from bottom condensate drain valve be discharged, excess steam from top blow valve be discharged, to catalyst float carbon into
Row removal.
(2) it is passed through 600 DEG C of oxygen deprivation gas (oxygen content 5%V/V) from feed inlet, burning carbon removal is carried out to catalyst carbon deposition, together
When system is dried, duration of ventilation 12h, during which reactor bottom sampler timing sampling observe water content, Zhi Daowu
Bright water generates.
(3) nitrogen is passed through to reactor into line replacement, analysis separately sampled in reaction kettle upper, middle and lower segment from feed inlet
It is qualified to be then considered as displacement for oxygen content≤0.5%V/V.
To sum up, the utility model mends the deficiency for compensating for hot benzene washing method, solves the problems, such as the removal of insoluble matter, and operate
Simply, easy to implement.
Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, are not limited to this reality
With novel, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all include
It is within the protection scope of the utility model.
Claims (3)
1. a kind of reaction unit applied to benzene alkylation, which is characterized in that including：
Reactor, wherein being mounted with solid acid catalyst to be regenerated；Steam inlet is provided on the reactor, nitrogen enters
Mouth, air intake, condensate drain valve, drain, sample tap and on-line sampler, wherein：
Steam inlet is located at reactor bottom, purges steam for being passed through；
Nitrogen inlet is located at reactor side, for being passed through nitrogen；
Air intake is located at reactor side, for being passed through air；
Condensate drain valve is located at reactor bottom, for excluding steam condensate；
Drain is located at reactor head, for excluding excessive purge steam；
Sample tap is located at upper, the neutralization lower position of reactor, for being sampled in reaction process；And
On-line sampler is located at reactor bottom, for real time sample in reaction process.
2. the reaction unit according to claim 1 applied to benzene alkylation, which is characterized in that described to be applied to benzene alkyl
The reaction unit of change also packet lip ring is located at the top of inside reactor, prevents reaction solution erosion corrosion reactor.
3. the reaction unit according to claim 1 applied to benzene alkylation, which is characterized in that described to be applied to benzene alkyl
The reaction unit of change further includes sieve, is located at reactor bottom, is used to support solid acid catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920183.4U CN207941533U (en) | 2017-12-29 | 2017-12-29 | Reaction unit applied to benzene alkylation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920183.4U CN207941533U (en) | 2017-12-29 | 2017-12-29 | Reaction unit applied to benzene alkylation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207941533U true CN207941533U (en) | 2018-10-09 |
Family
ID=63701327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721920183.4U Active CN207941533U (en) | 2017-12-29 | 2017-12-29 | Reaction unit applied to benzene alkylation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207941533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108187761A (en) * | 2017-12-29 | 2018-06-22 | 内蒙古伊泰煤基新材料研究院有限公司 | The regeneration method and reaction unit of solid acid catalyst applied to benzene alkylation |
-
2017
- 2017-12-29 CN CN201721920183.4U patent/CN207941533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108187761A (en) * | 2017-12-29 | 2018-06-22 | 内蒙古伊泰煤基新材料研究院有限公司 | The regeneration method and reaction unit of solid acid catalyst applied to benzene alkylation |
| CN108187761B (en) * | 2017-12-29 | 2023-11-17 | 内蒙古伊泰煤基新材料研究院有限公司 | Regeneration method and reaction device of solid acid catalyst applied to benzene alkylation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105688520A (en) | Dust filtering system for mixed gas | |
| CN102764577B (en) | Method for collecting carbon dioxide from industrial kiln smoke | |
| CN207941533U (en) | Reaction unit applied to benzene alkylation | |
| CN108187761A (en) | The regeneration method and reaction unit of solid acid catalyst applied to benzene alkylation | |
| CN103157330A (en) | Cleaning method and cleaning equipment for polyester melt filter element | |
| CN105478010B (en) | A kind of microporous filter and its filtering cleaning method for Treatment of Coking Effluent | |
| CN203971483U (en) | A kind of purifier of NHD decarbonizing liquid | |
| CN110155968A (en) | Inert gas reclamation set and inert gas reuse method | |
| CN205603227U (en) | Carborundum edulcoration system | |
| CN102003915B (en) | Device and method for processing pressure difference rise of low-temperature methanol washing crude gas precooling systems | |
| CN207379752U (en) | A kind of environment-friendly type sampler | |
| CN207546086U (en) | Waste gas purification apparatus in stainless steel slag treatment process | |
| CN105126628B (en) | Reverse osmosis antisludging agent and preparation method thereof | |
| CN104190202B (en) | Circulation purification system for circular inert gas glove box special for MO source | |
| CN213995250U (en) | Processing system of electrolytic magnesium anode sublimate | |
| CN205045954U (en) | Sewage treatment device | |
| CN106989633A (en) | A kind of cleaning method of raw gas heat exchange heat exchanger used | |
| CN102847442B (en) | Ceramic membrane filter acid alkali regeneration cleaning method and apparatus thereof | |
| CN104624577A (en) | Cleaning method for wet process phosphoric acid production equipment | |
| CN106673123B (en) | Reactor and its operation process are repaired in integrated oil sewage photocatalysis | |
| CN209052608U (en) | The system of tubular reactor continuous production accelerator DZ | |
| CN205701656U (en) | A kind of useless pickling system of resistance to material | |
| CN115318235B (en) | Continuous system and method for collecting water-soluble inorganic salt deposition particles in high-temperature high-pressure water | |
| CN209411782U (en) | Nitrogen purification drying device | |
| CN112090221B (en) | Method for purifying raw gas for ammonia synthesis and ammonia synthesis process based on method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |