CN205635418U - Energy -conserving butene -1 separator - Google Patents
Energy -conserving butene -1 separator Download PDFInfo
- Publication number
- CN205635418U CN205635418U CN201620497064.1U CN201620497064U CN205635418U CN 205635418 U CN205635418 U CN 205635418U CN 201620497064 U CN201620497064 U CN 201620497064U CN 205635418 U CN205635418 U CN 205635418U
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- CN
- China
- Prior art keywords
- butene
- deisobutanizer
- tower
- reboiler
- outlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model relates to an energy -conserving butene 1 separator, its characterized in that is located the deisobutanizer tower at the bottom of the liquid outlet with the deisobutanizer reboiler liquid phase import with the butene 1 the feed inlet of tower is connected, is located the butene 1 liquid outlet at the bottom of the tata with the butene 1 the liquid phase import and the heavy ends export of tower reboiler are connected, are located the butene 1 the gas outlet on tata top with the steam inlet of deisobutanizer reboiler connect, the deisobutanizer reboiler lime set export with the butene 1 the backward flow mouth and the butene of tower 1 the discharge gate is connected. The utility model has the advantages of with positive effect be: the abundant reasonable butene that utilizes 1 the heat of tata top steam carries out the thermal coupling, and it is about 40% to practice thrift the steam quantity, has higher energy -conserving effect, has reduced the working costs, has practiced thrift the production cost.
Description
Technical field
This utility model relates to petrochemical industry, a kind of energy-conservation butene-1 segregation apparatus.
Background technology
Along with the fast development of China's oil chemical industry, growing with each passing day the demand of high-purity butylene-1, be currently mainly used as the comonomer of linear low density polyethylene (LLDPE), a small amount of is used for producing sec-butyl alcohol, dehydrogenation preparing ethyl methyl ketone.([1] Lv Zhihui. [J]. petrochemical industry, 2003,32(2)；153-155)
In recent years, along with improving rapidly of crude oil in China working ability and being continuously increased of ethylene yield, carbon four resource as petrochemical industry by-product constantly expands, and its total amount has been over 7.0Mt/a.([2] Zhao Guanghui etc. [J]. petrochemical industry, 2008,28；114-116)
Separating butane-1 carbon four after ether, needs to separate butene-1 with impurity such as iso-butane, normal butane, isobutene .s.Use the two-tower rectification device of de-heavy hydrocarbon after first taking off lighter hydrocarbons.Deisobutanizer main segregation ratio butene-1 low-boiling carbon three component and iso-butane；Normal butane that butene-1 tower segregation ratio butene-1 boiling point is high, isobutene. etc., tower top can obtain the purity butene-1 more than 99%.
Owing to the boiling point between weight component is sufficiently close to, separating difficulty is the highest, and the number of plates of needs and reflux ratio are very big, and the steam consumption during separating butane-1 is the biggest.
Summary of the invention
This utility model is for solving technical problem present in known technology, and provides a kind of device of separating butane-1 carbon four after ether.
This utility model is adopted the technical scheme that by solving technical problem present in known technology: a kind of energy-conservation butene-1 segregation apparatus, it is characterised in that including: deisobutanizer, butene-1 tower, deisobutanizer condenser, deisobutanizer reboiler and butene-1 tower reboiler；It is positioned at the described liquid outlet at the bottom of deisobutanizer tower to be connected with the charging aperture of the fluid inlet of described deisobutanizer reboiler and described butene-1 tower, the air inlet of the gas outlet and described deisobutanizer condenser that are positioned at described deisobutanizer tower top is connected, the liquid outlet of described deisobutanizer condenser is connected with the refluxing opening of described deisobutanizer and iso-butane discharging opening, it is positioned at the described liquid outlet at the bottom of butene-1 tower tower to be connected with fluid inlet and the heavy constituent outlet of described butene-1 tower reboiler, the steam inlet of the gas outlet and described deisobutanizer reboiler that are positioned at described butene-1 column overhead is connected, the condensate outlet of described deisobutanizer reboiler is connected with refluxing opening and the butene-1 discharging opening of described butene-1 tower.
This utility model has the advantage that with good effect: the weight component boiling point separated for butene-1 is closely, separating difficulty is high, required reflux ratio is bigger, the problem that separating energy consumption is bigger, properly increase the operation pressure of butene-1 tower, utilize butene-1 column overhead steam as the thermal source of deisobutanizer reboiler, without additionally adding steam, butene-1 overhead vapours is condensed simultaneously, without recirculated water and condenser, the heat adequately and reasonably utilizing butene-1 column overhead steam carries out thermal coupling, steam saving consumption about 40%, there is higher energy saving effect, reduce operating cost, save the cost produced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, deisobutanizer, 2, butene-1 tower, 3, deisobutanizer condenser, 4, deisobutanizer reboiler, 5, butene-1 tower reboiler.
Detailed description of the invention
For summary of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example, and it be as follows to coordinate accompanying drawing to describe in detail:
Referring to Fig. 1, be provided with charging aperture in the middle part of deisobutanizer 1, bottom is provided with liquid outlet, and top is provided with gas outlet；The liquid outlet of deisobutanizer 1 is connected with the fluid inlet of deisobutanizer reboiler 4 and the charging aperture of butene-1 tower 2, deisobutanizer 1 gas outlet is connected with the air inlet of deisobutanizer condenser 3, and the liquid outlet of deisobutanizer condenser 3 is connected with deisobutanizer 1 refluxing opening and iso-butane discharging opening；Being provided with charging aperture in the middle part of butene-1 tower 2, be provided with liquid outlet bottom butene-1 tower 2, butene-1 tower 2 top is provided with gas outlet；Butene-1 tower 2 liquid outlet is connected with fluid inlet and the heavy constituent discharging opening of butene-1 tower reboiler 5；Butene-1 tower 2 gas outlet is connected with the steam inlet of deisobutanizer reboiler 4, and deisobutanizer reboiler 4 condensate outlet is connected with butene-1 tower 2 refluxing opening and butene-1 discharging opening.
Work process of the present utility model: by C 4 mixture after raw material ether by adding in tower in the middle part of deisobutanizer 1, tower reactor uses deisobutanizer reboiler 4 to heat, overhead vapours is after deisobutanizer condenser 3 condenses, a part returns to deisobutanizer 1 as backflow, and a part is as iso-butane finished product extraction；A tower bottom liquid part mutually enters in butene-1 tower 2 as charging, butene-1 tower 2 uses butene-1 tower reboiler 5 to heat, butene-1 tower 2 overhead vapours enters into the steam inlet of deisobutanizer reboiler 4, a steam condensate part returns to butene-1 tower 2 as backflow, a part is as finished product extraction, extraction heavy constituent at the bottom of butene-1 tower 2 tower.
Although preferred embodiment of the present utility model being described above in conjunction with accompanying drawing; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematically; it is not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the case of without departing from this utility model objective and scope of the claimed protection, it is also possible to make a lot of form, within these belong to protection domain of the present utility model.
Claims (1)
1. an energy-conservation butene-1 segregation apparatus, it is characterised in that including: deisobutanizer, butene-1 tower, deisobutanizer condenser, deisobutanizer reboiler and butene-1 tower reboiler；It is positioned at the described liquid outlet at the bottom of deisobutanizer tower to be connected with the charging aperture of the fluid inlet of described deisobutanizer reboiler and described butene-1 tower, the air inlet of the gas outlet and described deisobutanizer condenser that are positioned at described deisobutanizer tower top is connected, the liquid outlet of described deisobutanizer condenser is connected with the refluxing opening of described deisobutanizer and iso-butane discharging opening, it is positioned at the described liquid outlet at the bottom of butene-1 tower tower to be connected with fluid inlet and the heavy constituent outlet of described butene-1 tower reboiler, the steam inlet of the gas outlet and described deisobutanizer reboiler that are positioned at described butene-1 column overhead is connected, the condensate outlet of described deisobutanizer reboiler is connected with refluxing opening and the butene-1 discharging opening of described butene-1 tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620497064.1U CN205635418U (en) | 2016-05-27 | 2016-05-27 | Energy -conserving butene -1 separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620497064.1U CN205635418U (en) | 2016-05-27 | 2016-05-27 | Energy -conserving butene -1 separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205635418U true CN205635418U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620497064.1U Active CN205635418U (en) | 2016-05-27 | 2016-05-27 | Energy -conserving butene -1 separator |
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| CN (1) | CN205635418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945108A (en) * | 2017-11-17 | 2020-03-31 | 株式会社Lg化学 | Raffinate-2 refining process |
| CN115317945A (en) * | 2021-08-23 | 2022-11-11 | 中国石油化工股份有限公司 | Alkylation reaction product two-tower thermal coupling and heat pump combined separation process and separation device |
-
2016
- 2016-05-27 CN CN201620497064.1U patent/CN205635418U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945108A (en) * | 2017-11-17 | 2020-03-31 | 株式会社Lg化学 | Raffinate-2 refining process |
| US11040929B2 (en) | 2017-11-17 | 2021-06-22 | Lg Chem, Ltd. | Raffinate-2 refining method |
| CN115317945A (en) * | 2021-08-23 | 2022-11-11 | 中国石油化工股份有限公司 | Alkylation reaction product two-tower thermal coupling and heat pump combined separation process and separation device |
| CN115317945B (en) * | 2021-08-23 | 2024-04-19 | 中国石油化工股份有限公司 | Two-tower thermal coupling and heat pump combined separation process and separation device for alkylation reaction product |
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| GR01 | Patent grant |