CN204369778U - Between one, p-cresol alkylation continuous reaction apparatus - Google Patents
Between one, p-cresol alkylation continuous reaction apparatus Download PDFInfo
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- CN204369778U CN204369778U CN201420739498.9U CN201420739498U CN204369778U CN 204369778 U CN204369778 U CN 204369778U CN 201420739498 U CN201420739498 U CN 201420739498U CN 204369778 U CN204369778 U CN 204369778U
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Abstract
Between the open one of the utility model, p-cresol alkylation continuous reaction apparatus, adopt 6 alkylated reaction devices in series to carry out successive reaction together, wherein the first two alkylation still and latter two alkylation still are straight-through gas reaction still, middle two alkylation stills are the gas recovery reactor utilizing the complete iso-butylene of each reactor unreacted, such guarantee is reclaimed iso-butylene gas and is utilized, prevent the generation side reaction of isobutene gas autohemagglutination and cost increases, simultaneously, gas in iso-butylene return line is brought in reactor by jetting stream vacuum injector with material, increase gas and material contact surface, make reaction more complete, the charging limit discharging of the utility model limit, produce continuously, output is high, environmental friendliness, and labour intensity is little, is convenient to automated operation and scale operation, and whole production process is closed-loop operation, and safety coefficient is high, reduces the generation of security incident.
Description
Technical field
The utility model relates to Chemicals chemical reactive synthesis field, particularly between one, p-cresol alkylation continuous reaction apparatus.
Background technology
The boiling point of meta-cresol and p-cresol is very close, only differ 0.4 DEG C, be difficult to directly be separated by rectifying, usually be all with, exist the form of mixture, again through rectifying separation after needing to make both boiling points increase by alkylated reaction, existing, p-cresol alkylated reaction is all the reaction of single still, produces in intermittent type, unreacted completely isobutene gas compressor is pressed into gas-holder, and then passes into isobutene reaction still.Because iso-butylene requires high to compressor material etc., to the serious corrosion of compressor, produce leakage phenomenon, Gu often keep in repair compressor, cost is high.Single still process yields is little, operator are many, and energy consumption is large, and inefficiency, Safety control difficulty is large.
Utility model content
For the existing deficiency that efficiency is low, cost is high of existing single still reaction, the purpose of this utility model is to provide between one, p-cresol alkylation continuous reaction apparatus, significantly improves production efficiency and security, is convenient to automated operation and scale operation.
For achieving the above object, the utility model takes following technical scheme, between one, p-cresol alkylation continuous reaction apparatus, it is characterized in that, a) six alkylation stills of connecting successively are comprised, the bottom of each alkylation still all arranges a recycle pump, wherein the first two and latter two alkylation still are also provided with inlet mouth, the top of each alkylation still is equipped with air outlet and one for feed back to the jetting stream vacuum injector of this still, described jetting stream vacuum injector is communicated with above-mentioned recycle pump, recycle pump is passed through between adjacent alkyl still, heat transfer tube is communicated with isocon, recycle pump bottom last alkylation still connects discharge nozzle,
B) also comprise iso-butylene inlet pipe, described iso-butylene inlet pipe is communicated with the inlet mouth of abovementioned alkyl still;
C) unreacted iso-butylene muffler is also comprised, described unreacted iso-butylene muffler is communicated with above-mentioned jetting stream vacuum injector with the air outlet at abovementioned alkyl still top simultaneously, and two the alkylation stills in centre rely on iso-butylene in unreacted iso-butylene muffler to be back to this still through jetting stream vacuum injector to react completely.
Further, described isocon, discharge nozzle also connect responsible material directly get or end prod defective return continue reaction material go out to return pipe.
Operation steps is as follows: mixture is from the 1st alkylation still feed, when material reaches quantity of reflux, open recycle pump and the jetting stream vacuum injector of this still, and access isobutene gas, now, material in alkylation still realizes backflow through this still recycle pump and jetting stream vacuum injector, in still, unreacted iso-butylene enters unreacted iso-butylene muffler through air outlet, when inventory reaches this alkylation still capacity 50%, open the isocon towards subordinate's alkylation still, and to subordinate's alkylation still access isobutene gas, the air feed of the first two and latter two alkylation still derives from iso-butylene inlet pipe and unreacted iso-butylene muffler, the air feed of middle two alkylation stills derives from unreacted iso-butylene muffler, all the time control to keep micro-negative pressure in unreacted iso-butylene muffler, avoid in pipe, there is malleation iso-butylene generation self-polymeric reaction, when material arrives last alkylation still, the reaction conversion ratio of material in Real-Time Monitoring still, through discharge hole for discharge after product is qualified, and keep stable load sustained reaction, as product is defective, material is turned back to prime alkylation still and continue reaction, until qualified.
Beneficial effect: together the utility model carries out successive reaction by 6 alkylated reaction devices in series, limit charging limit discharging, produce continuously, output is high, environmental friendliness, and labour intensity is little, be convenient to automated operation and scale operation, whole production process is closed-loop operation, and safety coefficient is high, reduces the generation of security incident.
Accompanying drawing explanation
Fig. 1 uses by the utility model the basic block diagram of equipment;
In figure: 1-6 alkylation still, 7-12 recycle pump, 13-18 heat transfer tube, 19-23 isocon, 24 discharge nozzles, 25-30 jetting stream vacuum injector, 31-36 air outlet, 37 iso-butylene return lines, 38 materials go out to return pipe, 39 iso-butylene inlet pipe, 40 feed-pipes.
Embodiment
As shown in Figure 1, the utility model provides between one, the method of p-cresol alkylation successive reaction, comprise six the alkylation still 1-6 connected successively, the bottom of each alkylation still all arranges a recycle pump, wherein the first two and latter two alkylation still are also provided with inlet mouth, the top of each alkylation still is equipped with air outlet and one for feed back to the jetting stream vacuum injector of this still, described jetting stream vacuum injector is communicated with above-mentioned recycle pump, recycle pump is passed through between adjacent alkyl still, heat transfer tube is communicated with isocon, recycle pump bottom last alkylation still connects discharge nozzle 24,
B) also comprise iso-butylene inlet pipe 39, described iso-butylene inlet pipe 39 is communicated with the inlet mouth of abovementioned alkyl still 1,2,5,6;
C) unreacted iso-butylene muffler 37 is also comprised, described unreacted iso-butylene muffler 37 is communicated with above-mentioned jetting stream vacuum injector with the air outlet at abovementioned alkyl still top simultaneously, and two the alkylation stills 3,4 in centre rely on iso-butylene in unreacted iso-butylene muffler 37 to be back to this still through jetting stream vacuum injector to react completely.
Operation steps is as follows: mixing of materials evenly passes through feed-pipe 40 afterwards to the 1st alkylation still 1 feed, when material reaches quantity of reflux (about 30%), open recycle pump 7 and the jetting stream vacuum injector 25 of this still, and access isobutene gas through iso-butylene inlet pipe 39, now, material in alkylation still 1 realizes backflow through this still recycle pump 7 and jetting stream vacuum injector 25, in still, unreacted iso-butylene enters unreacted iso-butylene muffler 37 through air outlet 31, when inventory reaches this alkylation still capacity 50%, open the isocon towards subordinate's alkylation still, and to subordinate's alkylation still access isobutene gas, the rest may be inferred, wherein: the air feed of the first two and latter two alkylation still derives from iso-butylene inlet pipe and unreacted iso-butylene muffler, the air feed of middle two alkylation stills derives from unreacted iso-butylene muffler, all the time control to keep micro-negative pressure in unreacted iso-butylene muffler, avoid in pipe, there is malleation iso-butylene generation self-polymeric reaction, when material arrives last alkylation still 6, the reaction conversion ratio of material in Real-Time Monitoring still, through discharge port 24 discharging after product is qualified, and keep stable load sustained reaction, as product is defective, material is gone out to return pipe 38 through material and turns back to prime alkylation still continuation reaction, until qualified.
Middle two alkylation stills 3,4 rely on iso-butylene in unreacted iso-butylene muffler 37 to be back to this still through jetting stream vacuum injector to react completely, ensure that reclaiming isobutene gas is fully utilized, prevent the generation side reaction of isobutene gas autohemagglutination and cost increases, simultaneously, gas in unreacted iso-butylene muffler 37 is brought in reactor by jetting stream vacuum injector with material, increase gas and material contact surface, make reaction more complete.
Claims (2)
1. between one kind, p-cresol alkylation continuous reaction apparatus, it is characterized in that, a) six alkylation stills of connecting successively are comprised, the bottom of each alkylation still all arranges a recycle pump, wherein the first two and latter two alkylation still are also provided with inlet mouth, the top of each alkylation still is equipped with air outlet and one for feed back to the jetting stream vacuum injector of this still, described jetting stream vacuum injector is communicated with above-mentioned recycle pump, be communicated with isocon by recycle pump, heat transfer tube between adjacent alkyl still, the recycle pump bottom last alkylation still connects discharge nozzle;
B) also comprise iso-butylene inlet pipe, described iso-butylene inlet pipe is communicated with the inlet mouth of abovementioned alkyl still;
C) unreacted iso-butylene muffler is also comprised, described unreacted iso-butylene muffler is communicated with above-mentioned jetting stream vacuum injector with the air outlet at abovementioned alkyl still top simultaneously, and two the alkylation stills in centre rely on iso-butylene in unreacted iso-butylene muffler to be back to this still through jetting stream vacuum injector to react completely.
2. between one according to claim 1, p-cresol alkylation continuous reaction apparatus, it is characterized in that, described isocon, discharge nozzle also connect responsible material and directly to get or the defective material continuing reaction that returns of end prod goes out to return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739498.9U CN204369778U (en) | 2014-12-02 | 2014-12-02 | Between one, p-cresol alkylation continuous reaction apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420739498.9U CN204369778U (en) | 2014-12-02 | 2014-12-02 | Between one, p-cresol alkylation continuous reaction apparatus |
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| CN204369778U true CN204369778U (en) | 2015-06-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496758A (en) * | 2014-12-02 | 2015-04-08 | 安徽海华科技股份有限公司 | M-cresol and p-cresol alkylated continuous reaction method |
| CN107185476A (en) * | 2017-05-19 | 2017-09-22 | 南京大学 | A kind of multistage, multi-functional injection reactor assembly and its operating method |
| CN113209929A (en) * | 2021-07-08 | 2021-08-06 | 东营科宏化工有限公司 | M-cresol and p-cresol alkylation continuous reaction device |
| CN113636916A (en) * | 2021-09-17 | 2021-11-12 | 陕西万汇能聚科技有限公司 | Method for synthesizing 2,4, 6-tri-tert-butylphenol |
-
2014
- 2014-12-02 CN CN201420739498.9U patent/CN204369778U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496758A (en) * | 2014-12-02 | 2015-04-08 | 安徽海华科技股份有限公司 | M-cresol and p-cresol alkylated continuous reaction method |
| CN107185476A (en) * | 2017-05-19 | 2017-09-22 | 南京大学 | A kind of multistage, multi-functional injection reactor assembly and its operating method |
| CN113209929A (en) * | 2021-07-08 | 2021-08-06 | 东营科宏化工有限公司 | M-cresol and p-cresol alkylation continuous reaction device |
| CN113209929B (en) * | 2021-07-08 | 2021-09-14 | 东营科宏化工有限公司 | M-cresol and p-cresol alkylation continuous reaction device |
| CN113636916A (en) * | 2021-09-17 | 2021-11-12 | 陕西万汇能聚科技有限公司 | Method for synthesizing 2,4, 6-tri-tert-butylphenol |
| CN113636916B (en) * | 2021-09-17 | 2023-08-29 | 陕西万汇能聚科技有限公司 | Method for synthesizing 2,4, 6-tri-tert-butylphenol |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 233300 No.36 Kaiyuan Avenue, mohekou Industrial Park, Huaishang District, Bengbu City, Anhui Province Patentee after: Anhui Haihua Technology Co., Ltd. Address before: 233000 Anhui province Bengbu Kaiyuan Avenue estuary Industrial Park Huaishang District No. 34 Mo Patentee before: Anhui Haihua Chemical Technology Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 233000 No.36, Kaiyuan Avenue, mohekou Industrial Park, Huaishang District, Bengbu City, Anhui Province Patentee after: Anhui Haihua Technology Group Co.,Ltd. Address before: 233300 No.36, Kaiyuan Avenue, mohekou Industrial Park, Huaishang District, Bengbu City, Anhui Province Patentee before: Anhui Haihua Technology Co.,Ltd. |