CN200966990Y - Adiabatic fixed bed reactor for catalytic reactions - Google Patents
Adiabatic fixed bed reactor for catalytic reactions Download PDFInfo
- Publication number
- CN200966990Y CN200966990Y CN 200620047988 CN200620047988U CN200966990Y CN 200966990 Y CN200966990 Y CN 200966990Y CN 200620047988 CN200620047988 CN 200620047988 CN 200620047988 U CN200620047988 U CN 200620047988U CN 200966990 Y CN200966990 Y CN 200966990Y
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- pipe
- bed reactor
- catalytic reaction
- conversion zone
- reactor
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Abstract
The utility model relates to an adiabatic fixed bed reactor used for catalytic reaction, which mainly solves the former technology problem that material in the reactor distributes unevenly and the radial heat dissipation of small reactor is severe. The utility model solves the problem by providing a distributor arranged on one end of the pre-heating section material inlet, and a temperature preservation layer, a heating furnace tile and an electric heating wire from the outer wall of reaction section to the heating furnace in sequence. The reactor is used to test the high-voltage continuous catalytic reaction.
Description
Technical field
The utility model relates to a kind of insulation fix bed reactor that is used for catalytic reaction.
Background technology
Whether reactor is according to being divided into heat-insulating and heat exchange type with the environment heat-shift, and wherein adiabatic reactor occupies significant proportion in Chemical Manufacture.This is because the heat exchange type reactor is compared with adiabatic reactor and had a lot of shortcomings, as the tubulation heat-exchanger rigs that adopt in the reactor more, because of the tubulation number is subjected to process limitations can not be too much and then limited the loadings of catalyst; Heat-exchanger rig has increased equipment investment and operating cost greatly; Operating procedure is complicated.On the contrary, advantage such as adiabatic reactor is little because of its equipment investment, loaded catalyst is big and easy to loading and unloading, operating cost low and easy and simple to handle has become the first-selection of industrial reactor design.But since in industrial production because of loaded catalyst is big, the exothermic heat of reaction amount is big, the reactor heat loss is little, so obtain adiabatic condition easily; On the contrary, loaded catalyst is few in the laboratory, and the exothermic heat of reaction amount is few, and rapid heat dissipation can't obtain real adiabatic temperature rise.So adiabatic operation is difficult to simulation on small-sized reaction unit.Sun Zhaolin etc. mention in 2000 the 13rd volumes of petrochemical industry Journal of Chinese Universities the 1st phase " light-hydrocarbon aromatized system research " wall of reactor heat radiation and insulation material heat absorption are compensated, realize the simulation adiabatic operation of midget plant, and explore the adiabatic reaction technology of aromatisation.
Summary of the invention
Technical problem to be solved in the utility model is that prior art is in carrying out catalytic reaction process, used insulation fix bed reactor exists reaction mass skewness and reactor heat radiation on beds seriously can not guarantee adiabatic problem, and a kind of new insulation fix bed reactor that is used for catalytic reaction is provided.It is little that this reactor has that material is evenly distributed at beds, reactor radially dispels the heat, the characteristics that insulation effect is good.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows: a kind of insulation fix bed reactor that is used for catalytic reaction, the pipe and the temperature control component that comprise heating furnace, be made up of preheating section and conversion zone; Pipe places in the heating furnace, and preheating section charging aperture one end of pipe is equipped with distributor, and the preheating section outer tube wall of pipe is to being mounted with heating tile and electrical heating wire between oven enclosure successively; The conversion zone outer tube wall of pipe is to being mounted with heat-insulation layer, heating tile and electrical heating wire between oven wall successively, loading catalyst bed in the conversion zone of pipe; All electrical heating wires are connected with temperature control component.
In the technique scheme, the draw ratio preferable range of preheating section pipe or conversion zone pipe is 6～60: 1.Gas distributor is a tubular, opens circular hole on the barrel, and percent opening is 20～80%.The preheating section of pipe, conversion zone and heating furnace preferred version are axial same center line.The heating furnace preferred version is open-type radially.Preferred version is for also being mounted with insulation material in the middle of electrical heating wire and the oven enclosure.
The utility model has the multistage thermometric at the conversion zone outer tube wall, carries out the multistage temperature-compensating according to measured temperature, has reached insulation effect; Preheating section links to each other with the axial same center line of conversion zone, and compact conformation has reduced heat radiation; The charging aperture of preheating section is equipped with distributor, thereby helps the even mixing of gas-liquid material, has eliminated channeling, makes the more uniform temperature of reaction bed.Evidence, reactor of the present utility model is easy and simple to handle, and temperature control precision is higher, and experimental data is true and reliable, has simulated adiabatic reactor preferably, has obtained better technical effect.
Description of drawings
Fig. 1 is an adiabatic reactor schematic diagram of the present utility model.
1 is the pipe preheating section among Fig. 1, and 2 is the pipe conversion zone, and 3 is distributor, and 4 is electrical heating wire, 5 are reaction tube wall temperature thermocouple, and 6 is the heat-insulation layer temperature thermocouple, and 7 is the preheating section temperature thermocouple, and 8 are the heating tile, 9 is inner thermal insulating layer, and 10 is external thermal insulation, and 11 is temperature control component.
Concrete operation principle is: reaction mass enters preheating section 1 after evenly disperseing in distributor 3, be filled with inert filler in the preheating section, can further disperse and be heated to the reaction temperature of needs to reaction mass.The beds that reaction mass enters after preheating in the conversion zone 2 reacts.The temperature thermocouple 5 of reaction tube wall can record the temperature of each conversion zone, give temperature-compensating according to this temperature control electrical heating wire 4, make that the measured temperature of temperature thermocouple 6 in the corresponding heat-insulation layer is consistent with the temperature of reaction tube wall, to eliminate the temperature difference of reaction tube wall and corresponding inner thermal insulating layer 9, reduce the outside heat transmission of reaction bed, reach the plan insulation effect.
Below by embodiment the utility model is further elaborated
The specific embodiment
[embodiment 1～3]
Metal load type catalyst packed into for 100 milliliters to be of a size of in the pipe of 27 * 3 * 300 millimeters of Φ, at the inert filler of catalyst top dress desired height, at inert filler top dress gas distributor.Feed the nitrogen replacement inner air tube from pipe top, oxygen concentration is lower than 0.2% o'clock feeding hydrogen exchange nitrogen in waiting to manage.Displacement finishes the back to the pipe intensification, treats to feed liquid material and hydrogen when temperature rises to 50 ℃, on the beds in pipe exothermic reaction takes place.Temperature Distribution is:
Process conditions: 0.9 liter/hour of fluid flow, 36 liters/hour of hydrogen flowing quantities, 40 ℃ of conversion zone inlet temperatures are carried out hydrogenation reaction.
Reaction result: hydrogenation conversion 90～100%.
Claims (6)
1, a kind of insulation fix bed reactor that is used for catalytic reaction, the pipe and the temperature control component that comprise heating furnace, form by preheating section and conversion zone; Pipe places in the heating furnace, and the preheating section outer tube wall of pipe is to being mounted with heating tile and electrical heating wire between oven enclosure successively; The conversion zone outer tube wall of pipe is to being mounted with heat-insulation layer and heating tile, loading catalyst bed in the conversion zone of pipe between oven wall successively; All electrical heating wires are connected with temperature control component, it is characterized in that preheating section charging aperture one end of pipe is equipped with distributor; The conversion zone of pipe also is mounted with electrical heating wire between heating tile and oven wall, electrical heating wire is connected with temperature control component.
2, the insulation fix bed reactor that is used for catalytic reaction according to claim 1, the draw ratio that it is characterized in that preheating section pipe or conversion zone pipe is 6～60: 1.
3, the insulation fix bed reactor that is used for catalytic reaction according to claim 1 is characterized in that distributor is a tubular, opens circular hole on the barrel, and percent opening is 20～80%.
4, the insulation fix bed reactor that is used for catalytic reaction according to claim 1, preheating section, conversion zone and the heating furnace that it is characterized in that pipe are axial same center line.
5, the insulation fix bed reactor that is used for catalytic reaction according to claim 1 is characterized in that heating furnace is open-type radially.
6, a kind of insulation fix bed reactor that is used for catalytic reaction according to claim 1 is characterized in that also being mounted with insulation material in the middle of electrical heating wire and the oven enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620047988 CN200966990Y (en) | 2006-11-21 | 2006-11-21 | Adiabatic fixed bed reactor for catalytic reactions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620047988 CN200966990Y (en) | 2006-11-21 | 2006-11-21 | Adiabatic fixed bed reactor for catalytic reactions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200966990Y true CN200966990Y (en) | 2007-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620047988 Expired - Fee Related CN200966990Y (en) | 2006-11-21 | 2006-11-21 | Adiabatic fixed bed reactor for catalytic reactions |
Country Status (1)
| Country | Link |
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| CN (1) | CN200966990Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961628A (en) * | 2010-11-04 | 2011-02-02 | 迈瑞尔实验设备（上海）有限公司 | Small and medium heat-insulating reactor |
| CN105797652A (en) * | 2014-12-31 | 2016-07-27 | 亚申科技研发中心（上海）有限公司 | Multichannel isothermal reaction system |
| CN111185125A (en) * | 2020-01-08 | 2020-05-22 | 中国科学院工程热物理研究所 | Device and method for activating deactivated catalyst |
| CN113617311A (en) * | 2021-09-10 | 2021-11-09 | 中国科学院电工研究所 | Electric heating catalytic reactor |
-
2006
- 2006-11-21 CN CN 200620047988 patent/CN200966990Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961628A (en) * | 2010-11-04 | 2011-02-02 | 迈瑞尔实验设备（上海）有限公司 | Small and medium heat-insulating reactor |
| CN101961628B (en) * | 2010-11-04 | 2013-03-27 | 迈瑞尔实验设备（上海）有限公司 | Small and medium heat-insulating reactor |
| CN105797652A (en) * | 2014-12-31 | 2016-07-27 | 亚申科技研发中心（上海）有限公司 | Multichannel isothermal reaction system |
| CN105797652B (en) * | 2014-12-31 | 2018-10-30 | 亚申科技研发中心（上海）有限公司 | A kind of multichannel isothermal reaction system |
| CN111185125A (en) * | 2020-01-08 | 2020-05-22 | 中国科学院工程热物理研究所 | Device and method for activating deactivated catalyst |
| CN111185125B (en) * | 2020-01-08 | 2022-04-22 | 中国科学院工程热物理研究所 | Catalyst activation apparatus and method |
| CN113617311A (en) * | 2021-09-10 | 2021-11-09 | 中国科学院电工研究所 | Electric heating catalytic reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071031 Termination date: 20111121 |