CN204824674U - Four raw materialss in carbon system of refining - Google Patents
Four raw materialss in carbon system of refining Download PDFInfo
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- CN204824674U CN204824674U CN201520592019.XU CN201520592019U CN204824674U CN 204824674 U CN204824674 U CN 204824674U CN 201520592019 U CN201520592019 U CN 201520592019U CN 204824674 U CN204824674 U CN 204824674U
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Abstract
The utility model provides a four raw materialss in carbon system of refining, its characterized in that includes hydrogenation refined reactor, first heat exchanger, second heat exchanger, rectifying column, return tank and reboiler, the first heat exchanger shell side entry linkage of has pipeline, and the tube side import is connected with aforementioned hydrogenation refined reactor's discharge gate, the shell side export of the aforementioned first heat exchanger of second heat exchanger shell side entry linkage, the shell side export is connected with aforementioned hydrogenation refined reactor's feed inlet, the tube side exit linkage of rectifying column feed inlet and aforementioned first heat exchanger, the exit linkage has tower cauldron pump at the bottom of the tower of this rectifying column, return tank feed inlet and aforementioned second cooler's shell side exit linkage, the liquid phase exit linkage of this return tank has the backwash pump. Compared with the prior art, the utility model has the advantages of: butadiene and isobutene desorption in the carbon no. 4 are clean, deviate from the rate and reach 99.9% to the normal even running of follow -up hydration workshop section and hydration catalyst's life have been guaranteed.
Description
Technical field
The utility model relates to a kind of carbon four feed purification system, belongs to technical field of chemical.
Background technology
Mixed c 4 is the raw material of methyl ethyl ketone plant.A small amount of divinyl and iso-butylene is contained in carbon four raw material after ether, easy polymerization generates some superpolymer (heavies), these molecular weight of high polymer are large, viscosity is high, especially with water cap in hydration reactor around catalyzer stick together, block water cap gap, reactor bed pressure drop is raised, has a strong impact on the normal operation of device, reduce the work-ing life of catalyzer simultaneously; Iso-butylene can generate the by product trimethyl carbinol in hydration reaction simultaneously, causes t butanol content in sec-butyl alcohol too high, adds the operation easier of sec-butyl alcohol refinement, therefore, must remove.
For this reason, disclose in prior art " a kind of refining plant of refinery C four " (Authorization Notice No. CN203238194U), see Chinese utility model patent ZL201320228216.4, although this patent can obtain economic performance excellent carbon four raw material, but technique is more loaded down with trivial details, equipment is more complicated, not easily applies.
Utility model content
Technical problem to be solved in the utility model is the carbon four feed purification system providing a kind of device simple for the above-mentioned state of the art and can obtain better quality.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of carbon four feed purification system, is characterized in that comprising
Hydrofining reactor;
First Heat Exchanger, shell side inlet is connected with transport pipe, and tube side import is connected with the discharge port of aforementioned hydrogenation refining reaction device;
Second interchanger, shell side inlet connects the shell-side outlet of aforementioned First Heat Exchanger, and shell-side outlet is connected with the opening for feed of aforementioned hydrogenation refining reaction device;
Rectifying tower, opening for feed exports with the tube side of aforementioned First Heat Exchanger and is connected, and the tower bottom outlet of this rectifying tower is connected with tower reactor pump, and this tower reactor pump is connected with the first water cooler; The tower top outlet of this rectifying tower connects the shell side inlet of air cooler and the second water cooler successively;
Return tank, opening for feed is connected with the shell-side outlet of aforementioned second water cooler, and the liquid-phase outlet of this return tank is connected with reflux pump, and this backflow pump outlet one tunnel connects the spray inlet of aforementioned rectifying tower, and another road is for connecting downsteam processing facilities; And
Reboiler, two ends are connected with the bypass outlet in the middle part of rectifying tower and reflux inlet respectively.
Further, described reboiler comprises the first reboiler and second reboiler of independent setting, accordingly, aforesaid first reboiler is connected with the first bypass outlet in the middle part of rectifying tower and the first reflux inlet, and aforesaid second reboiler is connected with the second bypass outlet in the middle part of rectifying tower and the second reflux inlet.
As preferably, the first described reboiler and the second reboiler all adopt thermosyphon reboiler.
The shell-side outlet of described second water cooler is positioned at the top of return tank discharge port, so just can realize potential difference conveying, reduce energy consumption.
Compared with prior art, the utility model has the advantage of: by carbon four feed purification system, divinyl in carbon four and butene removal clean, extrusion rate reaches 99.9%, thus ensure that the normal smooth running of post-hydration workshop section and the work-ing life of hydration catalyst, reduce the operation easier of sec-butyl alcohol refinement simultaneously.
Accompanying drawing explanation
Fig. 1 is example structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Figure 1, the carbon four feed purification system in the present embodiment comprises hydrofining reactor 3, First Heat Exchanger 1, second interchanger 2, rectifying tower 4, return tank 11, first reboiler 5 and the second reboiler 6.
Transport pipe connects the shell side inlet of First Heat Exchanger 1, the shell-side outlet of First Heat Exchanger 1 connects the shell side inlet of the second interchanger 2, the shell-side outlet of the second interchanger 2 connects the entrance of hydrofining reactor 3, the outlet of hydrofining reactor 3 connects the tube-side inlet of described First Heat Exchanger 1, and the tube side outlet of First Heat Exchanger 1 connects the feed(raw material)inlet of rectifying tower 4.
The tower bottom outlet of rectifying tower 4 connects tower reactor pump 7 entrance, and tower reactor pump 7 exports connection first water cooler 8 shell side inlet, and the first water cooler 8 shell-side outlet connects extraneous upstream device.
The tower top outlet of rectifying tower 4 connects the shell side inlet of air cooler 9 and the second water cooler 10 successively, and the shell-side outlet of water cooler connects the feed(raw material)inlet of return tank 11.
The liquid-phase outlet of return tank 11 connects reflux pump 12 entrance, and the outlet of reflux pump 12 has two-way, and a road connects the spray inlet on rectifying tower 4 top, and another road connects extraneous upstream device.
The bottom of rectifying tower 4 is also provided with two bypass outlets, and this bypass outlet connects the first reboiler 5 respectively and the second reboiler 6, first reboiler 5 is connected two reflux inlets of rectifying tower 4 respectively with the outlet of the second reboiler 6.In the present embodiment, the first reboiler 5 and the second reboiler 6 are thermosyphon reboiler.
Principle of work is described below:
First carbon four raw material come from methyl ethyl ketone plant carbon four head tank is sent into First Heat Exchanger 1 and is carried out heat exchange from the carbon four of hydrofining reactor 3, reclaim after its heat is preheated to 40 ~ 50 DEG C and send into the second interchanger 2, hydrofining reactor 3 is sent into after being heated to 60 DEG C, in hydrofining reactor 3, divinyl and iso-butylene generation dimerization, dimerization reaction are converted into the heavy constituents such as C8, and reacted carbon four enters the feed(raw material)inlet in the middle part of rectifying tower 4 after First Heat Exchanger 1 heat exchange.
The shell side of the first reboiler 5 and the second reboiler 6 adopts 1.0MPaG saturation steam and 120 DEG C of steam condensate heating respectively, carbon four light constituent pushes up extraction from rectifying tower 4, enter air cooler 9 air as heat-eliminating medium, carbon four is cooled to about 40 DEG C, major part carbon four starts condensation, phlegma enters the second water cooler 10 recirculated cooling water again to be continued to be cooled to about 35 DEG C, phlegma sends into return tank 11 heavy constituent content such as (wherein lower than 100ppm) C5+ by potential difference, send from the liquid-phase outlet of return tank 11, the spray inlet on rectifying tower 4 top is delivered to through reflux pump 12 part, rectifying tower 4 is entered as phegma spray, all the other deliver to butylene concentration workshop section as raw material.Tower bottoms C5+ (being mainly C8 component) through tower reactor pump 7 enter with recirculated water be medium first water cooler 8 cool after deliver to tank field, sell as byproduct.
Claims (4)
1. a carbon four feed purification system, is characterized in that comprising
Hydrofining reactor;
First Heat Exchanger, shell side inlet is connected with transport pipe, and tube side import is connected with the discharge port of aforementioned hydrogenation refining reaction device;
Second interchanger, shell side inlet connects the shell-side outlet of aforementioned First Heat Exchanger, and shell-side outlet is connected with the opening for feed of aforementioned hydrogenation refining reaction device;
Rectifying tower, opening for feed exports with the tube side of aforementioned First Heat Exchanger and is connected, and the tower bottom outlet of this rectifying tower is connected with tower reactor pump, and this tower reactor pump is connected with the first water cooler; The tower top outlet of this rectifying tower connects the shell side inlet of air cooler and the second water cooler successively;
Return tank, opening for feed is connected with the shell-side outlet of aforementioned second water cooler, and the liquid-phase outlet of this return tank is connected with reflux pump, and this backflow pump outlet one tunnel connects the spray inlet of aforementioned rectifying tower, and another road is for connecting downsteam processing facilities; And
Reboiler, two ends are connected with the bypass outlet in the middle part of rectifying tower and reflux inlet respectively.
2. carbon four feed purification system according to claim 1, it is characterized in that described reboiler comprises the first reboiler and second reboiler of independent setting, accordingly, aforesaid first reboiler is connected with the first bypass outlet in the middle part of rectifying tower and the first reflux inlet, and aforesaid second reboiler is connected with the second bypass outlet in the middle part of rectifying tower and the second reflux inlet.
3. carbon four feed purification system according to claim 2, is characterized in that the first described reboiler and the second reboiler all adopt thermosyphon reboiler.
4. carbon four feed purification system according to claim 1, is characterized in that the shell-side outlet of described second water cooler is positioned at the top of return tank discharge port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520592019.XU CN204824674U (en) | 2015-08-03 | 2015-08-03 | Four raw materialss in carbon system of refining |
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| CN201520592019.XU CN204824674U (en) | 2015-08-03 | 2015-08-03 | Four raw materialss in carbon system of refining |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382652A (en) * | 2017-08-01 | 2017-11-24 | 山东滨庆新能源开发有限公司 | Rich alkynes carbon four decolourizes, removing impurities matter technique |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382652A (en) * | 2017-08-01 | 2017-11-24 | 山东滨庆新能源开发有限公司 | Rich alkynes carbon four decolourizes, removing impurities matter technique |
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| C14 | Grant of patent or utility model | ||
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Address after: 315803 No. 168 Hongyuan Road, Qijiashan Street, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Golden Hair New Materials Co., Ltd. Address before: 315801 No. 168 Hongyuan Road, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO HAIYUE NEW MATERIAL CO., LTD. |