CN203737218U - Multistage distributed fluidized bed reactor - Google Patents
Multistage distributed fluidized bed reactor Download PDFInfo
- Publication number
- CN203737218U CN203737218U CN201420145897.2U CN201420145897U CN203737218U CN 203737218 U CN203737218 U CN 203737218U CN 201420145897 U CN201420145897 U CN 201420145897U CN 203737218 U CN203737218 U CN 203737218U
- Authority
- CN
- China
- Prior art keywords
- bed reactor
- reactor
- fluidized bed
- injection
- multistage
- 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.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 239000003054 catalyst Substances 0.000 abstract description 13
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000010517 secondary reaction Methods 0.000 abstract 1
- 239000000376 reactant Substances 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model discloses a multistage distributed fluidized bed reactor and relates to the field of chemical equipment, in particular to a fluidized bed reactor.The multistage distributed fluidized bed reactor comprises an inlet, an ingress pipe, a distributor, distribution plates, an injection stage, a delivery pipe, separators and a tower body, wherein the distribution plates are arrayed between the ingress pipe and the delivery pipe of the fluidized bed reactor in a graded manner from the bottom up; one injection stage is correspondingly arranged on each distribution plate; and each injection stage is at least provided with an injection port.The reactor is simple in structure; the multistage distribution plates are used to exert a multistage distribution effect on reaction fluid without filling; a reactor is contacted with a catalyst more uniformly and sufficiently; and at the same time, the injection stages can be used for injecting the reactor and a temperature regulation agent or a reaction terminator to control reaction depth, reduce secondary reaction and increase the yield of a target product.
Description
Technical field
The utility model relates to chemical industry equipment field, is specifically related to a kind of fluidized-bed reactor.
Background technology
Fluidized-bed reactor is mainly used in chemical reaction, traditional fluidized-bed reactor comprises the air inlet/outlet of tower body, tower body top and bottom, air inlet place, bottom arranges a gas distributor, catalyst is near injecting reactor distributor exit position, the gas uniform of coming in distributor mixes, and moves up under the drive of gas speed, reactor top, catalyst is separated from the gas under Action of Gravity Field, and derives reactor by delivery line.The shortcoming of this flowing bed reactor is: gas is only through once distributing, and distribution of gas is inhomogeneous, and easily produces larger bubble, back-mixing is larger, also easily there is short circuit and channel, affect effective time of contact and the contact area of gas and catalyst, reduce reaction efficiency.Can not control flexibly reaction depth, easily cause the secondary response of object product, and reduce the yield of object product.
Chinese patent CN102895923A, described in it, equipment relates to a kind of fluidized-bed reactor with classification baffle plate, compare with conventional flow fluidized bed reactor, its improvements comprise one of reactant described in multi-level injection, described level is separated by structuring filler, thereby makes that in back-mixing, bypass phenomenon and bubble size, at least one minimizes.
Summary of the invention
The utility model provide a kind of can make distribution of gas evenly, the multistage distributed flow fluidized bed reactor of the contacting more fully of reactant and catalyst, minimizing secondary response.
A kind of multilevel distributed fluidized-bed reactor, comprise entrance, ingress pipe, distributor, distribution grid, injection stage, delivery line, separator and tower body, the classification from bottom to top of described distribution grid is arranged between fluidized-bed reactor ingress pipe and delivery line, on each distribution grid, correspondence arranges an injection stage, and each injection stage at least arranges an injection port.
Preferably, described distribution grid comprises at least secondary distribution grid.
More preferably, described distribution grid is sieve plate, grid or guard.
Or preferably, described injection port is spray thrower.
Or preferably, described delivery line is for flooding stream pipe or overflow pipe.
Or preferably, described separator is cyclone separator.
The utility model is simple in structure, utilize multistage distribution grid reacting fluid to be played to the effect of multistage distribution, do not need filler, make contacting of reactant and catalyst can be more all even fully, multistage injection stage not only can be used for injection reaction thing simultaneously, and can be used for injection temperature conditioning agent or reaction terminating agent, to control reaction depth, reduce secondary response, improve object product yield.
Brief description of the drawings
Fig. 1 is the structural representation of the multilevel distributed fluidized-bed reactor of the utility model.
Wherein, 1-entrance, 2-ingress pipe, 3-distributor, 4-distribution grid, 5-spray thrower, 6-delivery line, 7-separator, 8-tower body.
Detailed description of the invention
A kind of multilevel distributed fluidized-bed reactor of the utility model, comprises entrance 1, ingress pipe 2, distributor 3, distribution grid 4, injection stage 5, delivery line 6, separator 7 and tower body 8.Described in the present embodiment, distribution grid 4 is arranged between fluidized-bed reactor ingress pipe 2 and delivery line 6 for level Four distribution grid 4 and classification from bottom to top, distribution grid 4 can be simple in structure, the various informative various distribution grids 4 including sieve plate, grid or guard, described injection stage 5 should be mutually level Four and every grade of distribution grid 4 correspondences arrange an injection stage 5, each injection stage 5 at least arranges an injection port, in the utility model, each injection stage 5 arranges an injection port, injection port adopts spray thrower, delivery line 6 is for flooding stream pipe or overflow pipe, and separator 7 is cyclone separator.
As shown in Figure 1, catalyst enters reactor bottom by entrance 1, and reactant gas imports from ingress pipe 2, is uniformly distributed and is entered reactor bottom by distributor 3, forms gas-solid mixing stream with catalyst, mobile to reactor top.In moving process, by distribution grids 4 at different levels, effectively abolish the air pocket in reactor system, carry out distributing again, mixing again of gas and catalyst, form and be more conducive to the gas-solid mixing stream that reaction is effectively carried out, continue to reactor top mobile.Above moving to reactor time, catalyst separates with gas under self gravitation effect, and the catalyst of separation is derived reactor by delivery line 6.The same with traditional fluidized bed reactor system, reactor head is provided with separator 7, for separating of the gas and the catalyst that generate, reduces the loss of carrying of catalyst.
The utility model arranges multistage injection stage, can be used for charging in batches, on the one hand for multi-level injection unstripped gas and freshening gas; Injectable temperature regulato on the one hand: maintain or improve bed temperature by injected with heated material, or reducing reaction temperature by injecting cooling material; Can inject reaction terminating agent, control flexibly reaction depth, reduce secondary response simultaneously.By multistage injection, can flexible modulation reaction temperatures at different levels and the dividing potential drop of each reactive component, improve object product yield.
Claims (6)
1. a multilevel distributed fluidized-bed reactor, comprise entrance (1), ingress pipe (2), distributor (3), distribution grid (4), injection stage (5), delivery line (6), separator (7) and tower body (8), it is characterized in that: described distribution grid (4) classification is from bottom to top arranged between fluidized-bed reactor ingress pipe (2) and delivery line (6), the upper correspondence of each distribution grid (4) arranges an injection stage (5), and each injection stage (5) at least arranges an injection port.
2. a kind of multilevel distributed fluidized-bed reactor as claimed in claim 1, is characterized in that: described distribution grid (4) comprises at least secondary distribution grid (4).
3. a kind of multilevel distributed fluidized-bed reactor as claimed in claim 2, is characterized in that: described distribution grid (4) is sieve plate, grid or guard.
4. a kind of multilevel distributed fluidized-bed reactor as claimed in claim 1, is characterized in that: described injection port is spray thrower.
5. a kind of multilevel distributed fluidized-bed reactor as claimed in claim 1, is characterized in that: described delivery line (6) is for flooding stream pipe or overflow pipe.
6. a kind of multilevel distributed fluidized-bed reactor as claimed in claim 1, is characterized in that: described separator (7) is cyclone separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145897.2U CN203737218U (en) | 2014-03-28 | 2014-03-28 | Multistage distributed fluidized bed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145897.2U CN203737218U (en) | 2014-03-28 | 2014-03-28 | Multistage distributed fluidized bed reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203737218U true CN203737218U (en) | 2014-07-30 |
Family
ID=51337082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145897.2U Expired - Fee Related CN203737218U (en) | 2014-03-28 | 2014-03-28 | Multistage distributed fluidized bed reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203737218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106606999A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Fluidized bed reactor |
| CN119346010A (en) * | 2024-10-18 | 2025-01-24 | 浙江大学 | A multi-stage fluidized bed reactor for activating Fischer-Tropsch synthesis catalyst and a continuous activation process |
-
2014
- 2014-03-28 CN CN201420145897.2U patent/CN203737218U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106606999A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Fluidized bed reactor |
| CN106606999B (en) * | 2015-10-22 | 2020-03-24 | 中国石油化工股份有限公司 | fluidized bed reactor |
| CN119346010A (en) * | 2024-10-18 | 2025-01-24 | 浙江大学 | A multi-stage fluidized bed reactor for activating Fischer-Tropsch synthesis catalyst and a continuous activation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Che et al. | A CFD-PBM model considering ethylene polymerization for the flow behaviors and particle size distribution of polyethylene in a pilot-plant fluidized bed reactor | |
| CN105498647A (en) | Fluidized bed reactor, reaction apparatus and olefin preparation method and aromatic preparation method | |
| CN203737218U (en) | Multistage distributed fluidized bed reactor | |
| US20120216680A1 (en) | Dispersed Bubble Reactor For Enhanced Gas-Liquid-Solids Contact And Mass Transfer | |
| CN107185476A (en) | A kind of multistage, multi-functional injection reactor assembly and its operating method | |
| CN103212346A (en) | Spouted bed reactor and olefin polymerization method thereof | |
| CN104634134A (en) | Fluidized bed cooler, cooling method and coal hydrogenation gasification system | |
| US9975083B2 (en) | Systems and methods for multi-celled gas processing | |
| CN105903415A (en) | Low-temperature boiling chlorination furnace provided with multiple fluidization chambers | |
| CN115779800A (en) | Fluidized bed reactor and ammoxidation method | |
| CN103566838B (en) | Acrylonitrile fluidized reaction system and acrylonitrile fluid bed production method | |
| CN104801243B (en) | Methanol to olefins reaction equipment | |
| CN100439376C (en) | A method and device for separating acephate from neutralizing liquid | |
| CN103805998B (en) | Silicon wafer wet etching equipment and etching method thereof | |
| CN203711003U (en) | Fluidized bed reactor | |
| EP2991750B1 (en) | Systems and methods for multi-celled gas processing | |
| CN203170303U (en) | Pentachloropyridine synthesis gas intake distributing device | |
| CN103060085A (en) | Total-immersion continuous differential countercurrent extractor | |
| CN203417665U (en) | Combined type liquid-solid fluidization reactor | |
| CN205761065U (en) | Multi component particle system bed internal classification fluidized reactor | |
| CN104327869A (en) | Spouted circulating fluidized bed and spouted circulating fluidized bed process | |
| CN207520987U (en) | A kind of reclaimable catalyst stripper plant for coal chemical industry | |
| CN102475988A (en) | Continuous dynamic countercurrent extracting process for effective component of plants | |
| Li et al. | Numerical analysis of hydrodynamic characteristics and interphase coupling in a gas‐solid cyclone reactor | |
| CN203540507U (en) | Efficient fluidized bed reactor |
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: 20140730 Termination date: 20160328 |