CN110893333B - O-chlorobenzonitrile fluidized bed reactor - Google Patents
O-chlorobenzonitrile fluidized bed reactor Download PDFInfo
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- CN110893333B CN110893333B CN201911314239.5A CN201911314239A CN110893333B CN 110893333 B CN110893333 B CN 110893333B CN 201911314239 A CN201911314239 A CN 201911314239A CN 110893333 B CN110893333 B CN 110893333B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
- B01J8/28—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations the one above the other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
- B01J8/0055—Separating solid material from the gas/liquid stream using cyclones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1818—Feeding of the fluidising gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1845—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention relates to an o-chlorobenzonitrile fluidized bed reactor, which comprises a reactor body, wherein a material outlet is arranged at the top end of the reactor body; the upper end of the reactor body is provided with a cyclone separator which is connected with a material outlet; the right side of the reactor body is sequentially provided with a second catalyst inlet, a first catalyst inlet and a mixed gas inlet from top to bottom; the lower end of the reactor body is provided with an air inlet, and the bottom end of the reactor body is provided with a sewage outlet; a first reaction distributor, an air distribution plate, a second reaction distributor, a first mixed gas distributor and a second mixed gas distributor are sequentially arranged in the reactor body from bottom to top; from the bottom up is equipped with in proper order in this device and is equipped with first reaction distributor, air distribution plate, second reaction distributor, first gas mixture distributor, second gas mixture distributor from the bottom up in proper order, can make each looks carry out the misce bene in the reaction area to quick effectual improvement reaction efficiency.
Description
Technical Field
The invention relates to an o-chlorobenzonitrile fluidized bed reactor, belonging to the field of fluidized bed reactor equipment.
Background
The o-chlorobenzonitrile is an important organic intermediate, belonging to the field of chemical and medical intermediates, and the o-chlorobenzonitrile is prepared through liquid-liquid, gas-liquid, liquid-solid, gas-liquid-solid and other multiphase reaction processes in the reaction process, thereby achieving the mixing of the final product, since the reaction in the fluidized bed reactor involves heterogeneous reaction, therefore, in the reaction process, all phase substances need to be uniformly mixed so as to ensure that all phase substances in the reactor are uniformly mixed, in the prior art, when all phases are uniformly mixed, a flow distribution plate is usually directly arranged so as to uniformly mix multiple phases, although the mixing effect of each phase is improved to a certain extent, the mixing effect still has certain influence, therefore, how to better realize the uniform mixing of the substances of each phase is a problem to be solved by a plurality of manufacturers.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an o-chlorobenzonitrile fluidized bed reactor, which aims to solve the problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an o-chlorobenzonitrile fluidized bed reactor comprises a reactor body, wherein a material outlet is arranged at the top end of the reactor body; the upper end of the reactor body is provided with a cyclone separator, and the cyclone separator is connected with a material outlet; the right side of the reactor body is sequentially provided with a second catalyst inlet, a first catalyst inlet and a mixed gas inlet from top to bottom; the lower end of the reactor body is provided with an air inlet, and the bottom end of the reactor body is provided with a sewage outlet; a first reaction distributor, an air distribution plate, a second reaction distributor, a first mixed gas distributor and a second mixed gas distributor are sequentially arranged in the reactor body from bottom to top; the first reaction distributor is arranged below the air inlet, and the air distribution plate and the second reaction distributor are arranged between the air inlet and the mixed gas inlet; the first mixed gas distributor is arranged between the first catalyst inlet and the mixed gas inlet; the second mixture distributor is disposed between the second catalyst inlet and the first catalyst inlet.
As an improvement of the present invention, the first mixed gas distributor includes a distributor body, the distributor body includes a mixing pipe and a bottom plate, the bottom plate is disposed at the lower end of the mixing pipe, an air inlet pipe penetrating the bottom plate is disposed on the bottom plate, the upper end of the air inlet pipe is communicated with the mixing pipe, a flow guide member is disposed in the mixing pipe, the air inlet pipes are disposed at two sides of the flow guide member, respectively, an air outlet pipe is disposed at the upper end of the mixing pipe, and the air outlet pipe is disposed above the flow guide member.
As an improvement of the invention, two first guide plates are arranged at the upper end of the inner side of the mixing pipeline, three second guide plates are arranged at the lower end of the inner side of the mixing pipeline, and the first guide plates and the second guide plates are arranged in the mixing pipeline in a staggered manner; the inner end and the outer end of the first guide plate are both connected with a mixing pipeline; the inner end and the outer end of the second guide plate are both connected with a mixing pipeline; the air outlet pipeline is arranged between the two first guide plates.
As an improvement of the invention, the inner side of the reactor body is provided with a groove corresponding to the first gas mixture distributor, and the first gas mixture distributor is arranged in the groove.
As an improvement of the invention, the reactor body is provided with a mounting opening corresponding to the first mixed gas distributor, and a mounting door is arranged in the mounting opening.
As an improvement of the invention, the lower ends of the air inlet pipelines are provided with feed pipelines; the number of the air inlet pipelines is at least 2.
As an improvement of the invention, the vertical section of the feed pipe is trapezoidal.
As a refinement of the invention, the number of outlet ducts is at least 2.
As an improvement of the invention, the inner side of the reactor body is of a hollow structure, and a cooling water pipe is arranged in the hollow structure; the cooling pipeline is arranged between the mixed gas inlet and the second catalyst inlet.
As an improvement of the invention, the cooling water pipe is a spiral cooling water pipe.
Compared with the prior art, the invention has the following beneficial effects because the technology is adopted:
the invention is an o-chlorobenzonitrile fluidized bed reactor with simple structure, safety, reliability, convenient use and low cost, and the device is sequentially provided with a first reaction distributor, an air distribution plate, a second reaction distributor, a first mixed gas distributor and a second mixed gas distributor from bottom to top, so that all phases in a reaction area can be uniformly mixed, thereby rapidly and effectively improving the reaction efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an o-chlorobenzonitrile fluidized bed reactor;
FIG. 2 is a schematic view of the structure of the mounting port;
FIG. 3 is a schematic view of a first mixture distributor;
FIG. 4 is a schematic view of the structure of the intake duct;
FIG. 5 is a schematic diagram of the structure of the outlet pipe;
FIG. 6 is a schematic view of a second guide plate;
FIG. 7 is a schematic structural view of a first guide plate;
in the figure: 1. the reactor body, 2, the material export, 3, cyclone, 4, the second catalyst import, 5, first catalyst import, 6, the gas mixture import, 7, air intlet, 8, the drain, 9, the first reaction distributor, 10, air distribution plate, 11, the second reaction distributor, 12, the first gas mixture distributor, 13, the second gas mixture distributor, 14, the distributor body, 15, the mixing duct, 16, the bottom plate, 17, the admission line, 18, the outlet duct, 19, the first baffle, 20, the second baffle, 21, recess, 22, the installing port, 23, the installation door, 24, the charge-in pipeline, 25, condenser tube.
Detailed Description
The invention is further elucidated with reference to the drawings and the detailed description.
The attached drawing shows that the o-chlorobenzonitrile fluidized bed reactor comprises a reactor body 1, wherein a material outlet 2 is arranged at the top end of the reactor body 1; the upper end of the reactor body 1 is provided with a cyclone separator 3, and the cyclone separator 3 is connected with the material outlet 2; the right side of the reactor body 1 is sequentially provided with a second catalyst inlet 4, a first catalyst inlet 5 and a mixed gas inlet 6 from top to bottom; the lower end of the reactor body 1 is provided with an air inlet 7, and the bottom end of the reactor body 1 is provided with a sewage outlet 8; a first reaction distributor 9, an air distribution plate 10, a second reaction distributor 11, a first mixed gas distributor 12 and a second mixed gas distributor 13 are sequentially arranged in the reactor body 1 from bottom to top; the first reaction distributor 9 is arranged below the air inlet 7, and the air distribution plate 10 and the second reaction distributor 11 are arranged between the air inlet 7 and the mixed gas inlet 6; the first mixed gas distributor 12 is arranged between the first catalyst inlet 5 and the mixed gas inlet 6; the second mixture distributor 13 is disposed between the second catalyst inlet 4 and the first catalyst inlet 5.
First gas mixture distributor 12 includes distributor body 14, distributor body 14 includes hybrid pipeline 15 and bottom plate 16, hybrid pipeline 15 lower extreme is equipped with bottom plate 16, be equipped with the admission line 17 that runs through the setting on bottom plate 16, the admission line 17 upper end is linked together with hybrid pipeline 15, be equipped with the water conservancy diversion part in the hybrid pipeline 15, admission line 17 sets up the both sides at the water conservancy diversion part respectively, hybrid pipeline 15 upper end is equipped with outlet duct 18, outlet duct 18 sets up the top at the water conservancy diversion part.
Two first guide plates 19 are arranged at the upper end of the inner side of the mixing pipeline 15, three second guide plates 20 are arranged at the lower end of the inner side of the mixing pipeline 15, and the first guide plates 19 and the second guide plates 20 are arranged in the mixing pipeline 15 in a staggered mode; the inner end and the outer end of the first guide plate 19 are both connected with the mixing pipeline 15; the inner end and the outer end of the second guide plate 20 are both connected with the mixing pipeline 15; the outlet duct 18 is arranged between the two first guide plates 19.
The inner side of the reactor body 1 is provided with a groove 21 corresponding to the first gas mixture distributor 12, and the first gas mixture distributor 12 is arranged in the groove 21.
The reactor body 1 is provided with a mounting opening 22 corresponding to the first mixed gas distributor 12, and a mounting door 23 is arranged in the mounting opening 22, so that the reactor body 1 can be conveniently mounted and dismounted.
The lower ends of the air inlet pipelines 17 are provided with feed pipelines 24; the number of the air intake ducts 17 is at least 2.
The vertical section of the feeding pipeline 24 is trapezoidal, so that the feeding speed of gas can be increased, and the mixing efficiency is improved.
The number of the outlet pipes 18 is at least 2.
The reactor body 1 is of a hollow structure on the inner side, a cooling water pipe 25 is arranged in the hollow structure, and the cooling pipeline is arranged between the mixed gas inlet 6 and the second catalyst inlet 4. The cooling water pipe 25 is a spiral cooling water pipe 25.
The invention has the following specific using process: the reaction raw materials enter the device from an air inlet 7,
when in use, gas containing o-chlorobenzonitrile particles is added through the mixed gas inlet 6, and is distributed through the air distribution plate 10 of the second reaction distributor 11, and then is distributed through the first reaction distributor 9 by the air inlet 7; the method comprises the steps of mixing gas containing o-chlorobenzonitrile particles with air entering an air inlet 7, carrying out pre-reaction, cooling the reacted material through a cooling water pipe 25, mixing the cooled material with catalysts added from a second catalyst inlet 4 and a first catalyst inlet 5, carrying out chemical reaction, carrying out catalytic reaction and fluidization on the material, wherein the fluidization height is 5-8 m, sucking the material through a cyclone separator 3 after the fluidization reaction, separating the material through the cyclone separator 3, discharging the material out of a device through a material outlet 2 to obtain an o-chlorobenzonitrile product, and discharging impurities generated after the reaction of a reactor out of the device through a sewage outlet 8.
The o-chlorobenzonitrile fluidized bed reactor device is an exothermic reactor, and the reaction product is obtained by the materials through catalysis, mixing reaction and separation by a cyclone separator 3.
First gas mixture distributor 12 is the same with second gas mixture distributor 13's structure, first gas mixture distributor 12, second gas mixture distributor 13 make the mixture of o-chlorobenzonitrile granule and catalyst more even for the reaction effect is better, and structural reliability is higher.
First gas mixture distributor 12 is when using, and gas passes through feed channel 24 in proper order, inlet channel 17 gets into to mixing duct 15 in to in proper order between first baffle 19 and the second baffle 20 through crisscross setting, and gas is through first baffle 19, second baffle 20 carries out the reposition of redundant personnel and mixes, and the gas after the mixture is outside 18 eduction gear of the pipeline of giving vent to anger, thereby make the more concentrated upwards of gas flow, make better mixing of gas and catalyst, and participate in the reaction.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, and equivalents including technical features of the claims, i.e., equivalent modifications within the scope of the present invention.
Claims (8)
1. An o-chlorobenzonitrile fluidized bed reactor which is characterized in that: the reactor comprises a reactor body, wherein a material outlet is formed in the top end of the reactor body; the upper end of the reactor body is provided with a cyclone separator, and the cyclone separator is connected with a material outlet; the right side of the reactor body is sequentially provided with a second catalyst inlet, a first catalyst inlet and a mixed gas inlet from top to bottom; the lower end of the reactor body is provided with an air inlet, and the bottom end of the reactor body is provided with a sewage outlet; a first reaction distributor, an air distribution plate, a second reaction distributor, a first mixed gas distributor and a second mixed gas distributor are sequentially arranged in the reactor body from bottom to top; the first reaction distributor is arranged below the air inlet, and the air distribution plate and the second reaction distributor are arranged between the air inlet and the mixed gas inlet; the first mixed gas distributor is arranged between the first catalyst inlet and the mixed gas inlet; the second gas mixture distributor is arranged between the second catalyst inlet and the first catalyst inlet;
the first mixed gas distributor comprises a distributor body, the distributor body comprises a mixing pipeline and a bottom plate, the bottom plate is arranged at the lower end of the mixing pipeline, an air inlet pipeline which penetrates through the bottom plate is arranged on the bottom plate, the upper end of the air inlet pipeline is communicated with the mixing pipeline, a flow guide part is arranged in the mixing pipeline, the air inlet pipeline is respectively arranged on two sides of the flow guide part, an air outlet pipeline is arranged at the upper end of the mixing pipeline, and the air outlet pipeline is arranged above the flow guide part;
the upper end of the inner side of the mixing pipeline is provided with two first guide plates, the lower end of the inner side of the mixing pipeline is provided with three second guide plates, and the first guide plates and the second guide plates are arranged in the mixing pipeline in a staggered mode; the inner end and the outer end of the first guide plate are both connected with a mixing pipeline; the inner end and the outer end of the second guide plate are both connected with a mixing pipeline; the air outlet pipeline is arranged between the two first guide plates.
2. The o-chlorobenzonitrile fluidized bed reactor as set forth in claim 1, wherein: the reactor body inboard is equipped with the recess corresponding with first gas mixture distributor, first gas mixture distributor sets up in the recess.
3. The o-chlorobenzonitrile fluidized bed reactor as set forth in claim 1, wherein: the reactor body is provided with a mounting opening corresponding to the first mixed gas distributor, and a mounting door is arranged in the mounting opening.
4. The o-chlorobenzonitrile fluidized bed reactor as set forth in claim 1, wherein: the lower ends of the air inlet pipelines are provided with feed pipelines; the number of the air inlet pipelines is at least 2.
5. The o-chlorobenzonitrile fluidized bed reactor as set forth in claim 4, wherein: the vertical section of the feeding pipeline is trapezoidal.
6. The o-chlorobenzonitrile fluidized bed reactor as set forth in claim 1, wherein: the number of the air outlet pipelines is at least 2.
7. The o-chlorobenzonitrile fluidized bed reactor as set forth in claim 1, wherein: the inner side of the reactor body is of a hollow structure, and a cooling water pipe is arranged in the hollow structure; the cooling water pipe is arranged between the mixed gas inlet and the second catalyst inlet.
8. The o-chlorobenzonitrile fluidized bed reactor of claim 7, wherein: the cooling water pipe is a spiral cooling water pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314239.5A CN110893333B (en) | 2019-12-19 | 2019-12-19 | O-chlorobenzonitrile fluidized bed reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911314239.5A CN110893333B (en) | 2019-12-19 | 2019-12-19 | O-chlorobenzonitrile fluidized bed reactor |
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| CN110893333A CN110893333A (en) | 2020-03-20 |
| CN110893333B true CN110893333B (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911314239.5A Active CN110893333B (en) | 2019-12-19 | 2019-12-19 | O-chlorobenzonitrile fluidized bed reactor |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5122346A (en) * | 1990-05-10 | 1992-06-16 | Alex Wormser | Distributor for multistage fluidized beds |
| CN101665395A (en) * | 2009-09-18 | 2010-03-10 | 清华大学 | Fluidized bed process and device for preparing methane by synthetic gas |
| CN102513038A (en) * | 2011-12-31 | 2012-06-27 | 中国天辰工程有限公司 | Double-layer fluidized bed reactor |
| CN103738993A (en) * | 2013-12-04 | 2014-04-23 | 芜湖卓越纳米新材料有限公司 | Carbonation reactor of energy-efficient nano calcium carbonate and preparation method of energy-efficient nano calcium carbonate |
| CN204865839U (en) * | 2015-06-08 | 2015-12-16 | 中国石油化工股份有限公司 | Nitrobenzene liquid -phase hydrogenatin system aniline reaction unit |
| CN204911437U (en) * | 2015-07-22 | 2015-12-30 | 山东石大胜华化工集团股份有限公司 | Synthetic propylene carbonate's novel feed distribution ware |
| CN205403572U (en) * | 2016-02-15 | 2016-07-27 | 华陆工程科技有限责任公司 | Heat exchanger import guide plate type distributor |
| CN206980688U (en) * | 2017-07-22 | 2018-02-09 | 靖江神驹容器制造有限公司 | O-chloro benzonitrile fluidized-bed reactor |
-
2019
- 2019-12-19 CN CN201911314239.5A patent/CN110893333B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5122346A (en) * | 1990-05-10 | 1992-06-16 | Alex Wormser | Distributor for multistage fluidized beds |
| CN101665395A (en) * | 2009-09-18 | 2010-03-10 | 清华大学 | Fluidized bed process and device for preparing methane by synthetic gas |
| CN102513038A (en) * | 2011-12-31 | 2012-06-27 | 中国天辰工程有限公司 | Double-layer fluidized bed reactor |
| CN103738993A (en) * | 2013-12-04 | 2014-04-23 | 芜湖卓越纳米新材料有限公司 | Carbonation reactor of energy-efficient nano calcium carbonate and preparation method of energy-efficient nano calcium carbonate |
| CN204865839U (en) * | 2015-06-08 | 2015-12-16 | 中国石油化工股份有限公司 | Nitrobenzene liquid -phase hydrogenatin system aniline reaction unit |
| CN204911437U (en) * | 2015-07-22 | 2015-12-30 | 山东石大胜华化工集团股份有限公司 | Synthetic propylene carbonate's novel feed distribution ware |
| CN205403572U (en) * | 2016-02-15 | 2016-07-27 | 华陆工程科技有限责任公司 | Heat exchanger import guide plate type distributor |
| CN206980688U (en) * | 2017-07-22 | 2018-02-09 | 靖江神驹容器制造有限公司 | O-chloro benzonitrile fluidized-bed reactor |
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