CN202219160U - Differential pressure reducing device utilizing organic solvent to wash reactor - Google Patents
Differential pressure reducing device utilizing organic solvent to wash reactor Download PDFInfo
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- CN202219160U CN202219160U CN2011203137741U CN201120313774U CN202219160U CN 202219160 U CN202219160 U CN 202219160U CN 2011203137741 U CN2011203137741 U CN 2011203137741U CN 201120313774 U CN201120313774 U CN 201120313774U CN 202219160 U CN202219160 U CN 202219160U
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Abstract
The utility model relates to a differential pressure reducing device utilizing an organic solvent to wash a reactor, which comprises a synthesis reactor provided with an inlet and an outlet, a circulation water tank, a circulation water pump, a circulation water heater, a flow control valve, a liquid control valve and a circulation water collecting pipe. A water outlet of the circulation water tank is connected with one end of the circulation water pump, the other end of the circulation water pump is connected with one end of the circulation water heater, the other end of the circulation water heater is connected with the inlet of the synthesis reactor through the flow control valve, the outlet of the synthesis reactor is connected with one end of the circulation water collecting pipe through the liquid control valve, and the other end of the circulation water collecting pipe is connected with the water inlet of the circulation water tank. The differential pressure reducing device utilizing the organic solvent to wash the reactor effectively reduces the quantity of high polymers on water caps and on a catalyst, and effectively reduces differential pressure of the synthesis reactor so as to achieve good effect of reducing bed-layer differential pressure.
Description
Technical field
The utility model relates to the petrochemical technology field, more particularly, relates to a kind of water cap and resin of utilizing in the organic solvent flushing sec-butyl alcohol synthesis reactor with the device of effective reduction bed pressure reduction.
Background technology
Generate in the process of sec-butyl alcohol at butylene and hydration reaction; Fresh water (FW) is divided into four the tunnel, and the bottom from each bed of reactor gets into reactor respectively, and butylene mixes in reactor with water; With the resin be catalyst under the condition of HTHP, highly purified butylene and the water generation sec-butyl alcohol that reacts.The pressure reduction phenomenon has very easily appearred in hydration reactor in running; Owing to contain butadiene in the raw material, self-polymeric reaction takes place and generates high polymer in butadiene in hydration reactor, and these high polymers are partially dissolved in butylene and the fresh water (FW) and are taken out of; Also have part to stick on water cap and the catalyst; Block the slit of water cap, caused water cap flux to descend, caused reactor bed pressure reduction to increase.Along with the reactor growth of running time, the quantity of the high polymer of generation also is on the increase, and reactor bed pressure reduction is also constantly risen, and pressure reduction is the highest to rise to 0.4Mpa.The sec-butyl alcohol synthesis reactor is divided into four beds, and the pressure reduction of each bed must not surpass 0.5Mpa, and when in a single day reactor pressure reduction reached this pressure reduction, system can the charging of self-insurance cut-out sec-butyl alcohol synthesis reactor cause stopping work.In order to suppress increasing substantially of pressure reduction, adopt the method that adds injecting additive on the process units, but along with the continuous growth and the pressure reduction of sec-butyl alcohol synthesis reactor polymer content constantly rises, the additive capacity that need to inject this moment adds constantly also.
Though in reactor, inject additive can suppress pressure reduction in the short time growth, along with increasing of reactor high polymer quantity, the adding amount of additive also can correspondingly increase.Additive not only can the etching process water pipeline, and inside reactor water cap is caused serious corrosion, has reduced duration of service, and can increase the device operation cost greatly.
At present also there is not mature technique to remove the high polymer that butadiene generates in reactor.
The utility model content
The utility model technical problem to be solved provides a kind of step-down difference device that utilizes organic solvent flushing reactor; More when the high polymer of producing in the reactor, when reactor pressure reduction is higher; Each bed water cap of reactor and catalyst are carried out adding in the organic solvent corresponding medicament immersion; Wash out reactor, to reach the purpose that reduces pressure reduction in the synthesis reactor.
The technical scheme that the utility model solves the problems of the technologies described above is following:
One utilizes the step-down difference device of organic solvent flushing reactor, comprises synthesis reactor, and said synthesis reactor is provided with entrance and exit, also comprises circulation water pot, water circulating pump, recirculated water heater, flow control valve, pilot operated valve device and recirculated water concetrated pipe; Said circulation water pot is provided with delivery port and water inlet; Said delivery port is connected with an end of water circulating pump; The other end of water circulating pump connects an end of said recirculated water heater; The other end of recirculated water heater is through the inlet of said flow control valve connection synthesis reactor, and the outlet of synthesis reactor is connected with an end of said recirculated water concetrated pipe through said pilot operated valve device, and the other end of recirculated water concetrated pipe is connected with the water inlet of said circulation water pot.
Further; Said synthesis reactor is provided with four beds; Each bed is equipped with corresponding entrance and exit, and the recirculated water heater divides four the tunnel to connect through the flow control valve inlet corresponding with each bed respectively, and the outlet that each bed is corresponding all connects an end of recirculated water concetrated pipe through pilot operated valve device.
The beneficial effect of the utility model is: reduced in the synthesis reactor amount of high polymer on the water cap and catalyst effectively; Effectively reduce the pressure reduction of synthesis reactor; Reached the effect of good reduction bed pressure reduction; Guarantee the even running of reactor long period, prolonged the service life of synthesis reactor, greatly reduced production and operation cost.
Description of drawings
Fig. 1 is the utility model structural representation;
In the accompanying drawing, the list of parts of each label representative is following:
1, circulation water pot, 2, water circulating pump, 3, the recirculated water heater, 4, flow control valve, 5, synthesis reactor, 51, first bed, 52, second bed, the 53, the 3rd bed, the 54, the 4th bed, 6, pilot operated valve device, 7, the recirculated water concetrated pipe.
The specific embodiment
Below in conjunction with accompanying drawing the principle and the characteristic of the utility model are described, institute gives an actual example and only is used to explain the utility model, is not the scope that is used to limit the utility model.
As shown in Figure 1; The described a kind of step-down difference device that utilizes organic solvent flushing reactor of the utility model embodiment; Comprise synthesis reactor 5; Said synthesis reactor 5 is provided with entrance and exit, also comprises circulation water pot 1, water circulating pump 2, recirculated water heater 3, flow control valve 4, pilot operated valve device 6 and recirculated water concetrated pipe 7; Said circulation water pot 1 is provided with delivery port and water inlet; The delivery port of said circulation water pot 1 is connected with an end of water circulating pump 2; The other end of water circulating pump 2 connects an end of said recirculated water heater 3; The other end of recirculated water heater 3 is through the inlet of said flow control valve 4 connection synthesis reactor 5, and the outlet of synthesis reactor 5 is connected with an end of said recirculated water concetrated pipe 7 through said pilot operated valve device 6, and the other end of recirculated water concetrated pipe 7 is connected with the water inlet of said circulation water pot 1.
Wherein, said synthesis reactor 5 is provided with four beds, is respectively first bed 51, second bed 52, the 3rd bed 53 and the 4th bed 54.Each bed is equipped with corresponding entrance and exit, and the recirculated water heater connected through flow control valve 4 inlet corresponding with each bed respectively in 3 minutes four the tunnel, and the outlet that each bed is corresponding all connects an end of recirculated water concetrated pipe 7 through pilot operated valve device 6.
The effect of water circulating pump 2 is that organic solvent is injected in the synthesis reactor 5; The effect of recirculated water heater 3 is suitably to promote temperature to organic solvent, to improve organic solvent dissolution and developing result; The effect of flow control valve 4 is that organic solvent flux and flow velocity are injected in control in said synthesis reactor 5; The effect of pilot operated valve device 6 is organic solvent liquid levels in the control synthesis reactor 5; The effect of recirculated water concetrated pipe 7 is that the organic solvent with each bed in the synthesis reactor 5 concentrates in together, and returns in the circulation water pot 1.
One, soak the backwash operation flow process:
1. after sec-butyl alcohol workshop section equipment component is stopped work; Sec-butyl alcohol synthesis reactor 5 temperature and pressure are suitably reduced, and water circulating pump 2 moves, and opens flow control valve 4, the pilot operated valve device 6 of synthesis reactor 5; Keep fresh water (FW) to continue circulation; Butylene in the sec-butyl alcohol synthesis reactor 5 is all displaced reactor, stoppage in transit water circulating pump 2 behind reactor head atmospheric valve water breakthrough, the butylene displacement is clean in the reactor at this moment.
2. after butylene replaces in the synthesis reactor 5, slowly water in the synthesis reactor 5 is led to drench from sec-butyl alcohol synthesis reactor 5 and cut only, this moment, the state response device had only catalyst.
3. be that organic solvent injects circulation water pot 1 from storage tank with purity, prepare to inject, keep circulation water pot 1 liquid level higher to reactor.
4. off-response device pilot operated valve device 6 is opened reactor Flow Control valve 4.This moment, the ON cycle water pump 2, with the organic solvent of circulation water pot 1 from reactor back with water inlet line injecting reactor.Suitably heat up for the solvent that get into sec-butyl alcohol synthesis reactor 5 through recirculated water heater 3 this moment.
5. make organic solvent that water cap and catalyst in the synthesis reactor 5 are washed immersion, the high polymer on catalyst and the water cap is dissolved in the solvent.
6. in immersion process, through the nitrogen line of synthesis reactor 5 bottoms, the autoreactor bottom feeds an amount of nitrogen in reactor, reactor resin and water cap are cleaned.
7. after the scouring immersion is cleaned and finished, open reactor pilot operated valve device 6 extraction solvent and water.
8. remaining polymer has lost original cohesiveness in the reactor, and just can develop most of polymer with big water gaging this moment, and each bed catalyst and water cap wash till water quality is as clear as crystal with demineralized water.
Then organic solvent is delivered to the tank field through pipeline, reclaims.Result before and after the flushing is compared.1) pressure reduction relatively: pressure reduction is reduced to about 0.08MPa from about 0.25Mpa.2) additive amount relatively: additive amount is reduced to about 1L from 5L.
In the present embodiment, choice of Solvent can not polluted reactor and whole hydration systems, and major part and water stratification; A small amount of this device that can utilize soluble in water reclaims; Basic free of losses can not pollute environment, and whole process is uninterrupted approximately to need 24 hours.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (2)
1. step-down difference device that utilizes organic solvent flushing reactor; Comprise synthesis reactor (5); Said synthesis reactor (5) is provided with entrance and exit, it is characterized in that: also comprise circulation water pot (1), water circulating pump (2), recirculated water heater (3), flow control valve (4), pilot operated valve device (6) and recirculated water concetrated pipe (7); Said circulation water pot (1) is provided with delivery port and water inlet; Said delivery port is connected with an end of water circulating pump (2); The other end of water circulating pump (2) connects an end of said recirculated water heater (3); The other end of recirculated water heater (3) connects the inlet of synthesis reactor through said flow control valve (4); The outlet of synthesis reactor is connected through the end of said pilot operated valve device (6) with said recirculated water concetrated pipe (7), and the other end of recirculated water concetrated pipe (7) is connected with the water inlet of said circulation water pot (1).
2. the step-down difference device that utilizes organic solvent flushing reactor according to claim 1; It is characterized in that: said synthesis reactor (5) is provided with four beds; Each bed is equipped with corresponding entrance and exit; Recirculated water heater (3) divides four the tunnel to connect through flow control valve (4) inlet corresponding with each bed respectively, and the outlet that each bed is corresponding all connects an end of recirculated water concetrated pipe (7) through pilot operated valve device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203137741U CN202219160U (en) | 2011-08-24 | 2011-08-24 | Differential pressure reducing device utilizing organic solvent to wash reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203137741U CN202219160U (en) | 2011-08-24 | 2011-08-24 | Differential pressure reducing device utilizing organic solvent to wash reactor |
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| Publication Number | Publication Date |
|---|---|
| CN202219160U true CN202219160U (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203137741U Expired - Fee Related CN202219160U (en) | 2011-08-24 | 2011-08-24 | Differential pressure reducing device utilizing organic solvent to wash reactor |
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| Country | Link |
|---|---|
| CN (1) | CN202219160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226206A (en) * | 2014-07-28 | 2014-12-24 | 河北新启元能源技术开发股份有限公司 | Pressure difference reducing device using organic solvent to wash reactor |
| CN105823594A (en) * | 2015-09-30 | 2016-08-03 | 亚申科技研发中心（上海）有限公司 | Bed pressure drop testing device for tubular fixed bed reactor |
-
2011
- 2011-08-24 CN CN2011203137741U patent/CN202219160U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226206A (en) * | 2014-07-28 | 2014-12-24 | 河北新启元能源技术开发股份有限公司 | Pressure difference reducing device using organic solvent to wash reactor |
| CN105823594A (en) * | 2015-09-30 | 2016-08-03 | 亚申科技研发中心（上海）有限公司 | Bed pressure drop testing device for tubular fixed bed reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20190824 |