CN107213853A - A kind of laboratory multistage insulation fixed bed reactor - Google Patents
A kind of laboratory multistage insulation fixed bed reactor Download PDFInfo
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- CN107213853A CN107213853A CN201610166039.XA CN201610166039A CN107213853A CN 107213853 A CN107213853 A CN 107213853A CN 201610166039 A CN201610166039 A CN 201610166039A CN 107213853 A CN107213853 A CN 107213853A
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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
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/04—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
- B01J8/0492—Feeding reactive fluids
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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
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/04—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
- B01J8/0446—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical
- B01J8/0461—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical in two or more cylindrical annular shaped beds
- B01J8/0469—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical in two or more cylindrical annular shaped beds the beds being superimposed 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00026—Controlling or regulating the heat exchange system
- B01J2208/00035—Controlling or regulating the heat exchange system involving measured parameters
- B01J2208/00044—Temperature measurement
- B01J2208/00061—Temperature measurement of the reactants
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00389—Controlling the temperature using electric heating or cooling elements
- B01J2208/00407—Controlling the temperature using electric heating or cooling elements outside the reactor bed
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00548—Flow
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00831—Stationary elements
- B01J2208/00849—Stationary elements outside the bed, e.g. baffles
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/02—Processes carried out in the presence of solid particles; Reactors therefor with stationary particles
- B01J2208/023—Details
- B01J2208/027—Beds
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
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Abstract
The invention discloses a kind of laboratory multistage insulation fixed bed reactor, preheating section is followed successively by cylinder from top to bottom, first catalyst layer, material inlet is located at the top of cylinder, material outlet is located at cylinder body bottom, electric heating layer is provided with outside cylinder, temperature-controlling system is connected with the temperature tube being located in electric heating layer, the temperature tube inside the first catalyst layer is located to be connected with temperature control system, at least provided with 2 beds and 1 gas mixing section on cylinder, according to gas mixing section below first catalyst layer, catalyst layer order is arranged in order setting, support frame and supporting screening plate are located in gas mixing section, first beds bottom is provided with supporting screening plate, support frame is arranged below in supporting screening plate, lower beds are arranged below in support frame, it is located at electric heating layer and electric heating layer outside the first catalytic bed cylinder that gas mixing section and lower catalyst oxidant layer share separate, separate electric heating layer passes through respective temperature-controlling system respectively, temp measuring system is controlled.
Description
Technical field
The present invention relates to a kind of laboratory multistage insulation fixed bed reactor, it is mainly used for laboratory simulation industrialization and effect assessment is carried out to the catalyst of preparation.
Background technology
In recent decades, the fast development produced with petrochemical industry, laboratory requires more and more higher to consersion unit, operating condition, control of technological parameter etc., for this, laboratory research develops the fixed bed reactors of many structure types, with accurate simulation industrialized production as far as possible, seek optimal experiment method and operating condition.In the laboratory equipment of evaluating catalyst, most commonly single stage adiabatic formula fixed bed reactors, because simple in construction, low cost etc. is widely used in the evaluation of laboratory catalytic agent.Preheating section, catalyst layer are followed successively by from top to bottom in the cylinder of the single stage adiabatic formula fixed bed reactors, material inlet is located at the top of cylinder, material outlet is located at the top of cylinder, and electric heating layer is provided with outside cylinder, and the warm system of control is connected with the temperature tube being located in electric heating layer；It is located at the temperature tube inside catalyst layer to be connected with temperature control system by wire, is located at the siphunculus lower end in the middle of cylinder and seals, the upper end outer peripheral face of cylinder upper end and siphunculus is sealedly and fixedly connected；The temperature tube connected with temperature control system is located in siphunculus.But there is following limitation in single stage adiabatic formula fixed bed reactors：The reactivity worth of one section of catalyst can only be evaluated, it is difficult to reflect the actual response performance of multistage catalyst, it is impossible to meet the need for providing precise information for industrial amplification test.Several single stage adiabatic formula fixed bed reactors are connected in the laboratory having for this, to obtain the coefficient reactivity worth of multistage catalyst, to make up the deficiency of single hop reactor.But the way also has shortcoming, big in the inevitable pyroreaction temperature of charge fluctuation of cascade process, there is phase transition phenomena in reaction mass, and the less stable of test data has a strong impact on the accuracy of test data.
The content of the invention
Present invention solves the technical problem that be to provide a kind of reaction mass occurs without phase transition phenomena in transmitting procedure, the multistage insulation formula fixed bed reactors of acquirement each segment data of catalyst reaction that can be accurate and stable.
The technical scheme is that：A kind of laboratory multistage insulation fixed bed reactor, include cylinder, preheating section, the first catalyst layer are followed successively by cylinder from top to bottom, material inlet is located at the top of cylinder, material outlet is located at cylinder body bottom, electric heating layer is provided with outside cylinder, temperature-controlling system is connected with the temperature tube being located in electric heating layer, is located at the temperature tube inside the first catalyst layer and is connected with temperature control system；At least provided with 2 beds and 1 gas mixing section on cylinder, according to gas mixing section below first catalyst layer, catalyst layer order is arranged in order setting, support frame and supporting screening plate are located in gas mixing section, first beds bottom is provided with supporting screening plate, support frame is arranged below in supporting screening plate, lower beds are arranged below in support frame, it is located at electric heating layer and electric heating layer outside the first catalytic bed cylinder that gas mixing section and lower catalyst oxidant layer share separate, separate electric heating layer passes through respective temperature-controlling system respectively, temp measuring system is controlled.
Further preferred embodiment, the pre-add hot arc is provided with independent temp measuring system, temperature-controlling system, electric heating layer, and the temperature tube that the intersegmental part is connected with temp measuring system is located inside preheating section, and the temperature tube connected with temperature-controlling system is located in electric heating layer.
Further preferred embodiment, the electric heating layer and cylinder of the gas mixing section are connected provided with second of material inlet and intersegmental thief hatch with gas mixing intersegmental part.
The first layer catalyst layer is repeated in down-set 3 to 12 group below as gas mixing section and lower catalyst layer order.
Present invention has the advantages that：Catalyst layer is divided into some sections by the present invention by setting intersegmental gas mixer in a heat-insulating fixed bed reactors, is solved the fluctuation of the pyroreaction temperature of charge between the independent single hop fixed bed reactors of series connection and is caused phase transition phenomena greatly.In each section of gas mixing section, intersegmental thief hatch and second of material inlet are set, it is easy to the reaction effect of each section of detection and analysis, pass through timely adjusting process parameter and material injected volume, ensure that the reactiveness in reactor is in optimal, reduce know clearly laboratory to catalyst carry out single hop evaluation when and industrialized production difference, can accurately collect and survey each section of catalyzer temperature-elevating evaluating data；Industrialized production state so can be really simulated, the collection and analysis of experimental data are facilitated again, more really and accurately data support is provided for later industry's enlarging production.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Embodiment
The present invention is described in further detail with reference to accompanying drawing, so that gas mixing section and lower catalyst layer repeat down-set 3 groups as an example, the top of cylinder 14 is provided with material inlet 1, bottom is provided with material outlet 12, is from top to bottom followed successively by preheating section 4, the bringing-up section 7-1 of the first beds, first gas mixing section 6-1, the second beds 7-2, second gas mixing section 6-2, the 3rd beds 7-3, third gas mixing section 6-3, the 4th beds 7-4；First gas mixing section 6-1 and the second catalyst layer 7-2 shares an electric heating layer 3-2 being located at outside cylinder；Second gas mixing section 6-2 and the 3rd catalyst layer 7-3 shares an electric heating layer 3-3 being located at outside cylinder；Third gas mixing section 6-3 and the 4th catalyst layer 7-4 shares an electric heating layer 3-4 being located at outside cylinder；Electric heating layer 3,3-1 are respectively arranged with outside the catalyst layer 7-1 of preheating section 4 and first cylinder；Electric heating layer 3,3-1,3-2,3-3,3-4 are separate, and each independent temp measuring system, temperature-controlling system are possessed respectively, and temperature tube 11,11-1,11-2,11-3, the 11-4 connected with temperature-controlling system is located in electric heating layer；Independent temperature tube 2,2-1,2-2,2-3,2-4 connected with respective temp measuring system by wire is respectively arranged with inside preheating section 4, the first catalyst layer 7-1, the second catalyst layer 7-2, the 3rd catalyst layer 7-3 and the 4th catalyst layer 7-4；It is located at the lower end of siphunculus 13 sealing in the middle of cylinder 14, the upper end outer peripheral face of the upper end of cylinder 14 and siphunculus is sealedly and fixedly connected, temperature tube 2,2-1,2-2,2-3,2-4 are from top to bottom successively set in siphunculus, and the wire connected with temp measuring system stretches out from the upper end of siphunculus 13；First catalyst layer 7-1, the second catalyst layer 7-2 and the 3rd catalyst layer 7-3 bottoms are provided with supporting screening plate 8-1,8-2,8-3, and support frame 5-1,5-2,5-3 is arranged below in supporting screening plate 8-1,8-2,8-3；The second catalyst layer 7-2, the 3rd catalyst layer 7-3 and the 4th catalyst layer 7-4 is arranged below in support frame 5-1,5-2,5-3.
Second material inlet 9-1,9-2, the 9-3 and intersegmental thief hatch 10-1,10-2,10-3 set on electric heating layer 3-2,3-3,3-4 and cylinder at further preferred embodiments, described gas mixing section 6-1,6-2,6-3 inside gas mixing section 6-1,6-2,6-3 with connecting.Obtained from intersegmental thief hatch after sample, dose material according to the timely adjusting process parameter of sample detection result and by second of species material inlet, it is ensured that experimental evaluation stable operation in reactor, the true and accurate of experimental data can be effectively improved.
Reactor diameter described in the present embodiment is 10-500mm, and every section of ratio of height to diameter is 0.2-10.
The present invention implementation process be：Loading catalyst in reactor, material is entered after preheating section preheating from material inlet, the first catalyst layer is entered to be catalyzed under catalyst action, gas after catalysis enters first gas mixing section by supporting screening plate, the second catalyst layer is entered back into after mixing with the material added from second of material inlet to be catalyzed, the like, the gas after catalysis is last from material outlet discharge.When carrying out experimental evaluation to catalyst, according to analysis result, with the technological parameter of very convenient timely adjustment reactor and material can be dosed, it is ensured that the experimental evaluation stable operation in reactor from each intersegmental thief hatch sampling analysis.
Heretofore described gas mixing section and lower catalyst layer repeat to set 3 to 12 groups, and mentioned here group refers to gas mixing section and lower catalyst layer being combined referred to as one group, and one of the group number in 3 to 12 groups can be selected according to actual needs.
Described above is only the preferred embodiments of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment, and all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of laboratory multistage insulation fixed bed reactor, include cylinder, preheating section, the first catalyst layer are followed successively by cylinder from top to bottom, material inlet is located at the top of cylinder, material outlet, which is located at outside cylinder body bottom, cylinder, is provided with electric heating layer, and temperature-controlling system is connected with the temperature tube being located in electric heating layer, the temperature tube inside the first catalyst layer is located to be connected with temperature control system, it is characterised in that：At least provided with 2 beds and 1 gas mixing section on cylinder, according to gas mixing section below first catalyst layer, catalyst layer order is arranged in order setting, support frame and supporting screening plate are located in gas mixing section, first beds bottom is provided with supporting screening plate, support frame is arranged below in supporting screening plate, lower beds are arranged below in support frame, it is located at electric heating layer and electric heating layer outside the first catalytic bed cylinder that gas mixing section and lower catalyst oxidant layer share separate, separate electric heating layer passes through respective temperature-controlling system respectively, temp measuring system is controlled.
2. a kind of laboratory multistage insulation fixed bed reactor according to claim 1, it is characterised in that：The pre-add hot arc is provided with independent temp measuring system, temperature-controlling system, electric heating layer, and the temperature tube that the intersegmental part is connected with temp measuring system is located inside preheating section, and the temperature tube connected with temperature-controlling system is located in electric heating layer.
3. a kind of laboratory multistage insulation fixed bed reactor according to claim 1 or 2, it is characterised in that：The electric heating layer and cylinder of the gas mixing section are connected provided with second of material inlet and intersegmental thief hatch with gas mixing section content.
4. a kind of laboratory multistage insulation fixed bed reactor according to claim 3, it is characterised in that：The first layer catalyst layer is repeated in down-set 3 to 12 group below as gas mixing section and lower catalyst layer order.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610166039.XA CN107213853A (en) | 2016-03-22 | 2016-03-22 | A kind of laboratory multistage insulation fixed bed reactor |
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| CN201610166039.XA CN107213853A (en) | 2016-03-22 | 2016-03-22 | A kind of laboratory multistage insulation fixed bed reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507359A (en) * | 2018-11-14 | 2019-03-22 | 西安交通大学 | A kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109507359A (en) * | 2018-11-14 | 2019-03-22 | 西安交通大学 | A kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction |
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