CN205308290U - Reverse pair of extrinsic cycle tubular reactor device - Google Patents
Reverse pair of extrinsic cycle tubular reactor device Download PDFInfo
- Publication number
- CN205308290U CN205308290U CN201521043319.9U CN201521043319U CN205308290U CN 205308290 U CN205308290 U CN 205308290U CN 201521043319 U CN201521043319 U CN 201521043319U CN 205308290 U CN205308290 U CN 205308290U
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- Prior art keywords
- tubular reactor
- reverse
- outer circulation
- phase material
- import
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- 239000000463 material Substances 0.000 claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 claims abstract description 45
- 238000009835 boiling Methods 0.000 claims abstract description 38
- 239000007791 liquid phase Substances 0.000 claims abstract description 30
- 239000007792 gaseous phase Substances 0.000 claims abstract description 21
- 230000008676 import Effects 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 abstract description 15
- 239000012071 phase Substances 0.000 abstract description 15
- 239000007789 gas Substances 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 24
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 18
- 238000000034 method Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- CMEWLCATCRTSGF-UHFFFAOYSA-N N,N-dimethyl-4-nitrosoaniline Chemical compound CN(C)C1=CC=C(N=O)C=C1 CMEWLCATCRTSGF-UHFFFAOYSA-N 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N chromium(III) oxide Inorganic materials O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001020 rhythmical effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a reverse pair of extrinsic cycle tubular reactor device, including tubular reactor, its characterized in that, tubular reactor upper end set up import of liquid phase material and the export of gaseous phase material, the lower extreme sets up the export of liquid phase material and the gaseous phase material is imported, the bottom sets up the discharge gate, tubular reactor's liquid phase material import before connect the pre -heater, the export of liquid phase material is through the import of outer circulating pump pipe connection pre -heater material, the export of gaseous phase material is through the import of governing valve pipe connection gaseous phase material. The device include tubular reactor and two outer circulation circuit, through the temperature of controlled reaction device, feed gas, the double -phase feeding of liquid and reverse circulation realize vapour, liquid bidirectional circulation, reinforcing vapour -liquid contact cycle, improvement feed stock conversion. The device have characteristics such as simple structure and convenient operation, can reduce the reaction temperature, improve the conversion rate of result, reduce the formation of high boiling point accessory substance.
Description
Technical field
The utility model relates to a kind of catalyst reaction device, particularly relates to a kind of reverse with double outer circulation pipe reaction device.
Background technology
At present, produce N, the method of accelerine mainly contains two kinds of modes, one is take mineral acid as catalyzer, under high temperature, condition of high voltage, adopts chuck still to carry out rhythmic reaction, generate product and obtain finished product through the process such as neutralization and underpressure distillation, the method transformation efficiency is only about 75%, forms about 5% high boiling point raffinate, and treating process needs the links such as neutralization, underpressure distillation and desalination, and process is more complicated; Two is with nano-metal-oxide CuO-Cr2O3Etc. being fixed bed reaction, transformation efficiency reaches 96%, and the product that reaction is formed, through distillation, evaporates between collecting 193-195 DEG C and point obtains finished product, and this reaction process needs react more than 300 DEG C, and thermal source is difficult to supporting, and it is high boiling point by-products produced that high temperature easily forms about 5%. In a word, order first two preparation method all exists and implements the problems such as difficult, process complicated and receipts rate is relatively low.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of with double outer circulation catalyst reaction device, and this device can be used for the gas-liquid phase catalytic reaction of two components, such as N, and the preparation of accelerine. Described device comprises tubular reactor (the control boiling point of temperature of reactor lower than high boiling point raw material, the boiling point higher than lower boiling raw material), high boiling point raw material adopts from upper aqueous phase charging, lower boiling raw material is from bottom vapour phase charging, catalyzer is loaded in reaction tubes, vehicle repair major is reverse exchange, reaction in pipe, improve duration of contact and area, the unreacted vapour phase of reactor head is circulated to reactor bottom, reactor bottom liquid phase part is circulated to reactor head, strengthen the vapour-liquid contact cycle, it is to increase feed stock conversion.
The purpose of this utility model is achieved through the following technical solutions:
The reverse with double outer circulation pipe reaction device of one described in the utility model, comprise tubular reactor, described tubular reactor upper end arranges liquid phase material import and gaseous phase materials outlet, lower end arranges liquid phase material outlet and gaseous phase materials import, connecting preheater before the liquid phase material import of tubular reactor, liquid phase material outlet connects preheater material inlet by outer circulation pump line road; Gaseous phase materials outlet connects gaseous phase materials import by variable valve pipeline; The bottom of described tubular reactor also arranges discharge port.
Device described in the utility model comprises tubular reactor and with double outer circulation loop, by controlling the temperature (boiling point lower than high boiling point raw material, the boiling point higher than lower boiling raw material) of reaction unit, realize high boiling point raw material liquid phase feeding, lower boiling raw material gas-phase feed.Described double circulation loop, high boiling point raw material is from reactor upper end liquid phase feeding, and Partial Liquid Phase material is from the lower end outer circulation of reactor to reactor liquid phase material import, it is achieved liquid phase circulation; Lower boiling raw material is from the lower end gas-phase feed of reactor, and the unreacted gaseous phase materials of reactor head is circulated to reactor gaseous phase materials import, it is achieved gas phase circulates. Realize vapour, the two-way circulation of liquid by the way, strengthen the vapour-liquid contact cycle, it is to increase feed stock conversion.
Described tubular reactor comprises well heater.
Described discharge port is connected with collector through condenser.
Described reverse with double outer circulation pipe reaction device also comprises high boiling point feedstock device and lower boiling feedstock device. Described high boiling point feedstock device, comprises raw material storage tank, under meter, variable valve and moisture eliminator, connects successively by pipeline, enter the material inlet of preheater; Described lower boiling feedstock device, comprises raw material storage tank, under meter, variable valve and well heater, enters the gaseous phase materials import of tubular reactor by pipeline after connecting successively.
The beneficial effects of the utility model: reverse with double outer circulation pipe reaction device device of the present utility model comprises tubular reactor and with double outer circulation loop, by controlling the temperature of reaction unit, unstripped gas, liquid two-phase charging reverse circulation, realize vapour, the two-way circulation of liquid, thus strengthen the vapour-liquid contact cycle, it is to increase feed stock conversion. Described device has that temperature of reaction is low, structure is simple and the feature such as easy to operate, for two components gas-liquid phase catalytic reaction (as preparation N, accelerine) can effectively reduce temperature of reaction, improve the transformation efficiency of reaction, reduce high boiling point by-products produced generation. It is embodied in: 1. reverse with double outer circulation pipe reaction device, is provided with outer circulation pump, it may be achieved liquid phase outer circulation, reaches the reverse contact of gas-liquid two-phase, it is to increase the contact area of reaction mass and time; 2. adopt gas-liquid conversed circulating reaction, effectively reduce temperature of reaction, avoid coking under the raw material condition of high temperature, decrease the formation of by product; 3. reactor two ends are provided with and are provided with high boiling point feed preheater and lower boiling feed heater, ensure gas, liquid two-phase feed state, reach Two-way Cycle object.
Accompanying drawing explanation
The structural representation of the reverse with double outer circulation pipe reaction device of Fig. 1.
It is described in further detail practicality is novel by embodiment below in conjunction with accompanying drawing; but following embodiment is only the utility model example wherein; not representing the protection domain that the utility model limits, rights protection scope of the present utility model is as the criterion with claim.
Embodiment
The reverse with double outer circulation pipe reaction device of one described in the utility model, its structure is as shown in Figure 1. 1 be head tank I (high boiling point raw material), 2 it is wherein under meter, 3 it is variable valve, 4 be head tank II (lower boiling raw material), 5 be pump, 6 be moisture eliminator, 7 be well heater, 8 be preheater, 9 be well heater, 10 be tubular reactor, 11 be condenser, 12 be well heater, 13 be variable valve, 14 be collector, 15 be catalyzer, 16 be outer circulation pump, 17 for variable valve, tubular reactor 10 e-quipment and pipe such as grade arrange stopping valve V, temperature measurer T1 and loadometer P1 etc. as required respectively; 1. the main streams related in flow process comprises is aniline, is 2. methyl alcohol, is 3. the aniline after preheater preheats, is 4. discharging bottom collector.
The reverse with double outer circulation pipe reaction device of one described in the utility model, comprise tubular reactor 10, described tubular reactor 10 upper end arranges liquid phase material import and gaseous phase materials outlet, lower end arranges liquid phase material outlet and gaseous phase materials import, connecting preheater 8 before the liquid phase material import of tubular reactor 10, liquid phase material outlet connects preheater 8 material inlet by outer circulation pump 16 pipeline;Gaseous phase materials outlet connects gaseous phase materials import by variable valve 13 pipeline; The bottom of described tubular reactor 10 also arranges discharge port, and discharge port is connected with collector 14 through condenser 11.
In described reverse with double outer circulation pipe reaction device, high boiling point raw material liquid phase feeding, lower boiling raw material gas-phase feed. High boiling point feedstock device, comprises head tank I 1, under meter 2, variable valve 3 and moisture eliminator 6, connects successively by pipeline, enter the material inlet of preheater 8; Lower boiling feedstock device, comprises head tank II 4, under meter 2, variable valve 3, well heater 12, enters the gaseous phase materials import of tubular reactor 10 by pipeline after connecting successively.
Described with double outer circulation pipe reaction device is made up of reactor and with double outer circulation loop, described with double outer circulation loop comprises liquid phase outer circulation and gas phase outer circulation two loops, its gas-phase feed mouth being respectively gas phase discharge port and lower end that variable valve 13 connects tubular type reactor top respectively forms a loop, and outer circulation pump 16 and preheater 8 connect the liquid phase discharge port of the lower end of tubular reactor and another loop of the liquid phase feeding mouth composition of upper end respectively.
Above-mentioned reverse with double outer circulation pipe reaction device being used for aniline and methanol oxidation reaction preparation N, accelerine, described moisture eliminator 6 diameter is 8mm, and long is 200mm; Preheater 8 diameter is 10mm, and long is 300mm; Tubular reactor is 10 diameter 20mm, and long is 800mm; Condenser 11 diameter is 25mm, and long is 400mm; Collector 14 diameter is 50mm, and long is 100mm. As required, pipe reaction device of the present utility model can proportionally amplify.
Adding H beta-molecular sieve catalyzer 15 in described tubular reactor 10, tubular reactor 10 is outer to be heated by well heater 9, and outside is stainless steel chuck; Head tank I 1 is aniline storage tank, and head tank II 4 is methyl alcohol storage tank; Described head tank I 1 is equipped with aniline, head tank II 4 is equipped with methyl alcohol. The aniline of high boiling point 1. through preheater 8 from tubular reactor 10 its top feed 3., lower boiling methyl alcohol 2. heater via 12 from tubular reactor 10 bottom feed; In control tubular reactor 10, temperature is between aniline boiling point and methyl alcohol boiling point so that in tubular reactor 10, methyl alcohol is gas, and aniline is liquid, and gas-liquid two-phase is reverse permutoid reaction in tubular reactor 10; The unreacted gas-phase methanol in tubular reactor top is circulated to tubular reactor bottom feed mouth through variable valve 13, Partial Liquid Phase product bottom tubular reactor is circulated to preheater opening for feed through outer circulation pump 16 and variable valve 17, enter the reaction of tubular reactor 10 resume again, it is achieved the two-way circulation of vapour, liquid. Product N, accelerine and part aniline enter collector 14 through condenser 11, and condensed product is by extraction bottom collector 14 4..
Claims (6)
1. a reverse with double outer circulation pipe reaction device, comprises tubular reactor, it is characterised in that, described tubular reactor upper end arranges liquid phase material import and gaseous phase materials outlet, and lower end arranges liquid phase material outlet and gaseous phase materials import, and bottom arranges discharge port; Connecting preheater before the liquid phase material import of described tubular reactor, liquid phase material outlet connects preheater material inlet by outer circulation pump line road; Gaseous phase materials outlet connects gaseous phase materials import by variable valve pipeline.
2. reverse with double outer circulation pipe reaction device according to claim 1, it is characterised in that, described tubular reactor comprises well heater.
3. reverse with double outer circulation pipe reaction device according to claim 1, it is characterised in that, described discharge port is connected with collector through condenser.
4. reverse with double outer circulation pipe reaction device according to claim 1, it is characterised in that, described reverse with double outer circulation pipe reaction device also comprises high boiling point feedstock device and lower boiling feedstock device.
5. reverse with double outer circulation pipe reaction device according to claim 4, it is characterised in that, described high boiling point feedstock device, comprises raw material storage tank, under meter, variable valve and moisture eliminator, connects successively by pipeline, enter the material inlet of preheater.
6. reverse with double outer circulation pipe reaction device according to claim 4, it is characterized in that, described lower boiling feedstock device, comprises raw material storage tank, under meter, variable valve and well heater, enters the gaseous phase materials import of tubular reactor by pipeline after connecting successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043319.9U CN205308290U (en) | 2015-12-15 | 2015-12-15 | Reverse pair of extrinsic cycle tubular reactor device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043319.9U CN205308290U (en) | 2015-12-15 | 2015-12-15 | Reverse pair of extrinsic cycle tubular reactor device |
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| Publication Number | Publication Date |
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| CN205308290U true CN205308290U (en) | 2016-06-15 |
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| CN201521043319.9U Active CN205308290U (en) | 2015-12-15 | 2015-12-15 | Reverse pair of extrinsic cycle tubular reactor device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130328A (en) * | 2021-11-10 | 2022-03-04 | 北京中教金源科技有限公司 | Photo-thermal synergistic continuous phase catalytic system |
-
2015
- 2015-12-15 CN CN201521043319.9U patent/CN205308290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130328A (en) * | 2021-11-10 | 2022-03-04 | 北京中教金源科技有限公司 | Photo-thermal synergistic continuous phase catalytic system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |