CN2284099Y - Heat insulating casing externally cooling combined reactor - Google Patents
Heat insulating casing externally cooling combined reactor Download PDFInfo
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- CN2284099Y CN2284099Y CN 96222256 CN96222256U CN2284099Y CN 2284099 Y CN2284099 Y CN 2284099Y CN 96222256 CN96222256 CN 96222256 CN 96222256 U CN96222256 U CN 96222256U CN 2284099 Y CN2284099 Y CN 2284099Y
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- reactor
- catalyst
- reaction section
- shell
- heat insulating
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model designs a heat insulating pipe shell externally cooling composite reactor. The reactor is divided into an upper and a lower parts, the upper part is a heat insulating reaction section, and the lower part is a pipe shell externally cooling reaction section. The utility model has the advantages of convenient operation, long service life of catalyst, reasonable reutilization of energy, etc., and the production capacity of a single tower is 20% larger than the production capacity of the pipe shell externally cooling reactor with the same diameter. The utility model can be widely used for methanol synthesis, ammonia synthesis and organic synthesis industry with strong exothermic reactions.
Description
The utility model belongs to the chemical reaction device technical field, relates to a kind of fixed bed catalytic reactor.
Industrial, for synthetic reaction, often adopt shell of pipe exterior formula reactor or multistage cold shock formula reactor with strong heat release.The former is as German Lurgi shell pipe type synthetic tower, and this reactor batch temperature is steady, and operation is convenient, and recovering energy with higher potential energy is applied to produce power steam.But also have the following significant disadvantage: 1. after unstripped gas enters reactor, can not reach reaction temperature immediately, temperature is lower in the reactor upper tube, nearly about 25% bed, temperature is lower than 30 ℃ of reaction temperatures, has influenced reaction and has normally carried out, and causes single tower production capacity lower.2. when harmful constituent in the unstripped gas such as sulphur, when the chlorine isoconcentration is higher, make the very fast poisoning of catalyst in the pipe, influenced the service life of catalyst.The latter such as Britain I.C.I multistage cold shock synthetic tower, this reactor list tower production capacity is big, simple in structure, but gas backmixing is serious, and operation control difficulty is bigger, and energy is recycled unreasonable.
These shortcomings of above-mentioned reactor have influenced industrial production, must the novel reactor of developmental research.The purpose of this utility model is to overcome the shortcoming that above-mentioned reactor exists, and a kind of single tower production capacity of developmental research is big, operation control is easy, catalyst life-span length, reasonable energy utilization, high efficiency reactor.
Design of the present utility model is: in reactor, top is provided with one section adiabatic reaction section, and this conversion zone has two effects: after unstripped gas enters reactor, promptly utilize id reaction heat rising temperature rapidly in the adiabatic section 1., it is temperature required to reach reaction, has improved reaction efficiency.2. this adiabatic section is filtered the effect of poisonous substance in addition, when harmful constituent concentration is higher in the unstripped gas, can be eliminated the unlikely catalyst activity that influences the sub-body conversion zone, the service life of having improved main reaction section catalyst greatly in the adiabatic section.
According to above-mentioned design, the inventor has designed and developed an a kind of adiabatic shell of pipe exterior combined reactor.Accompanying drawing is the schematic diagram of this reactor, upper perforated plate 3 is welded in the middle part of reactor shell 2, reactor is divided into, following two parts, place catalyst 4 above the upper perforated plate 3, be the adiabatic reaction section, it highly is 10%～35% of a total reactor height, the catalyst consumption is 15%～35% of a catalyst total amount, and be provided with an air inlet that has annular gas distributor 7 pay the pipe 6, it act as: when the temperature of adiabatic reaction section is temperature required above reaction, can enter reactor by paying pipe 6 by a small amount of unstripped gas, unlikely temperature is too high and burn out catalyst, on, lower perforated plate 3, the tubulation 9 that 1 usefulness is full of catalyst connects, the outer cooling water that feeds of pipe, so as to removing heat, produce steam, be the shell of pipe exterior conversion zone.Unstripped gas enters the adiabatic reaction section by reactor head by gas distributor 5.The shell of pipe exterior conversion zone that the gas that has been raise temperature and reached reaction temperature by the adiabatic section enters the bottom continues reaction, then by the bottom outflow reactor.In order to prevent the reactor bed local overcooling, required cooling water enters shell side by many water inlet pipes 10 that go deep into reactor, and steam is flowed out by steam outlet pipe 8.
This reactor compared with prior art has significant advantage, and operation control is easy, and single tower production capacity is big.This combined reactor is bigger by 20% than the reactor production capacity of same diameter, and the catalyst life-span of main reaction section is more than doubled and reasonable energy utilization than original reactor, has bigger prospects for commercial application.
This combined reactor can be used for that methyl alcohol is synthetic, the organic synthesis of ammonia synthesis and other strong exothermal reactions.
Embodiment
The reactor shell internal diameter is 2.8 meters, and the adiabatic reaction section highly is 0.7～1 meter, and shell of pipe exterior conversion zone height is 5.8～6.0 meters, adopts homemade C3a2 type low pressure copper-based catalysts, and the total consumption of catalyst is 24.3 meters
3, adiabatic reaction section catalyst amount is 4.3～4.8 meters
3, 2200 of the stainless steel tubes of shell of pipe exterior conversion zone employing 48 * 2, the stainless steel tube that pipe adopts 48 * 2 is paid in air inlet.Operating parameter is as follows:
Pressure is 5.0MPa, and adiabatic reaction section temperature is 220～240 ℃, and shell of pipe exterior conversion zone temperature is 240～255 ℃, and air inflow is 150000 standard meters
3/ time
Air inlet is formed: CO 10.5%, CO
23.5%, H
268.0%, N
2+ CH
411.5%, CH
4OH 0.5%, produces methyl alcohol with the utility model reactor, can obtain 330 tons of methyl alcohol every day, compare with the shell of pipe exterior reactor of same diameter, output improves 15%, compares with the thermal insulation-cold shock reactor of same diameter, reach same output, catalyst saves 30%.
Claims (4)
1. thermal insulation-shell of pipe exterior combined reactor, form by cylindrical shell (2), catalyst (4), tubulation (9), upper perforated plate (3), lower perforated plate (1), water inlet pipe parts such as (10), it is characterized in that: upper perforated plate (3) is welded in the reactor middle part, reactor is divided into two parts: pile with catalyst (4) above the upper perforated plate (3), be the adiabatic reaction section; Upper and lower tube sheet (3), (1) are connected with the tubulation (9) of filling catalyst (4), are the shell of pipe exterior conversion zone.
2. according to the described reactor of claim 1, it is characterized in that: the height of adiabatic reaction section is 10%～35% of a total reactor height; The catalyst consumption of adiabatic reaction section is 10%～30% of a catalyst total amount.
3. according to the described reactor of claim 1, it is characterized in that: have an air inlet to pay pipe (6) in the adiabatic reaction section.
4. according to the described reactor of claim 1, it is characterized in that: cooling water enters shell side by many water inlet pipes (10) that go deep in the reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96222256 CN2284099Y (en) | 1996-11-18 | 1996-11-18 | Heat insulating casing externally cooling combined reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96222256 CN2284099Y (en) | 1996-11-18 | 1996-11-18 | Heat insulating casing externally cooling combined reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2284099Y true CN2284099Y (en) | 1998-06-17 |
Family
ID=33901835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96222256 Expired - Fee Related CN2284099Y (en) | 1996-11-18 | 1996-11-18 | Heat insulating casing externally cooling combined reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2284099Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404096C (en) * | 2006-08-15 | 2008-07-23 | 中国石油天然气股份有限公司 | Reaction rectifying tower for producing dimethyl carbonate by urea alcoholysis method |
| CN102133512A (en) * | 2010-01-21 | 2011-07-27 | 华东理工大学 | Reactor applied to gas-phase exothermic reaction |
| CN104162387A (en) * | 2014-08-19 | 2014-11-26 | 宜昌恒友化工有限公司 | Pentachloropyridine reaction device capable of conveniently prolonging service life of catalyst |
| CN108579620A (en) * | 2018-06-08 | 2018-09-28 | 南京敦先化工科技有限公司 | A kind of combined type thermal insulation water shifting heat reactor |
-
1996
- 1996-11-18 CN CN 96222256 patent/CN2284099Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404096C (en) * | 2006-08-15 | 2008-07-23 | 中国石油天然气股份有限公司 | Reaction rectifying tower for producing dimethyl carbonate by urea alcoholysis method |
| CN102133512A (en) * | 2010-01-21 | 2011-07-27 | 华东理工大学 | Reactor applied to gas-phase exothermic reaction |
| CN102133512B (en) * | 2010-01-21 | 2013-05-15 | 华东理工大学 | Reactor applied to gas-phase exothermic reaction |
| CN104162387A (en) * | 2014-08-19 | 2014-11-26 | 宜昌恒友化工有限公司 | Pentachloropyridine reaction device capable of conveniently prolonging service life of catalyst |
| CN108579620A (en) * | 2018-06-08 | 2018-09-28 | 南京敦先化工科技有限公司 | A kind of combined type thermal insulation water shifting heat reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |