CN205443195U - Liquefied gas component recovery unit - Google Patents
Liquefied gas component recovery unit Download PDFInfo
- Publication number
- CN205443195U CN205443195U CN201521141245.2U CN201521141245U CN205443195U CN 205443195 U CN205443195 U CN 205443195U CN 201521141245 U CN201521141245 U CN 201521141245U CN 205443195 U CN205443195 U CN 205443195U
- Authority
- CN
- China
- Prior art keywords
- depentanizer
- deheptanizer
- reflux pump
- air cooler
- return tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model provides a liquefied gas component recovery unit, includes deheptanizer I, top of the tower air cooler I, return tank I and top reflux pump I, forms the deheptanizer and connects that return tank I is connected to top of the tower air cooler I, top of the tower air cooler I, top reflux pump I is connected to return tank I, I structure of connecting deheptanizer I of top reflux pump, the arrival line department of top reflux pump I is equipped with two delivery pumps, and the delivery pump export even has the conveyer pipe to communicate to the depentanizer, be equipped with in the deheptanizer I and divide the temperature regulation who adopts outflow board, be equipped with circulating pipe II on the depentanizer, the top of depentanizer is located to the one end of circulating pipe II, and the side on depentanizer upper portion is located to the other end, being equipped with top of the tower air cooler II, return tank II and top reflux pump II on the circulating pipe II, and being equipped with the liquefied gas conveyer pipe on the circulating pipe between top reflux pump II and the depentanizer II, the liquefied gas component realizes the separation in the depentanizer, retrieve from the depentanizer top of the tower.
Description
Technical field
This utility model relates to chemical industry field, is specifically related to the retracting device of a kind of liquefied gas component.
Background technology
PX, OX and MX, as the raw material of some synthetic material, have a wide range of applications in petrochemical industry.These compositions are isomers, and in typical aromatic hydrocarbons factory, one or more dimethylbenzene separate from C8 aromatic hydrocarbons, and remaining isomerization unit of delivering to converts and reaches a kind of poised state.
Unbalanced C8 aromatic hydrocarbons is transformed into poised state by isomerization reaction.The raw material of UOPIsomar technique merges from the side run-off of the raffinate column of PX unit, raw material and hydrogen-rich recycle, after gasification, sends into fixed bed radial reactor, and the effluent of reactor is condensed, and is then demultiplex out hydrogen and loops back reactor.As it is shown in figure 1, remaining liquid portion is sent to deheptanizer.The task of deheptanizer is to isolate C7-fraction from tower top.After the gas of overhead stream and isomerization stripping tower top converges, through the condensation cooling of deheptanizer air cooler, enter deheptanizer return tank.Condensed fluid in tank, after deheptanizer top pump boosts, returns tower top mostly as backflow, and fraction sends into stripper top charging.The gas phase of tank deck is dropped a hint after condenser condenses cooling further through deheptanizer, enters deheptanizer blow-down tank.The liquid phase stream of blow-down tank returns deheptanizer return tank by gravity flow under gravity, and the fixed gas of emptying tank deck drains into fuel gas system.Deheptanizer substrate is C8+ aromatic hydrocarbons, after pump boosting at the bottom of deheptanizer, first feeds heat exchange with deheptanizer, then after isomerization clay tower removing trace amounts of olefin, delivers to xylene distillation unit.Before stripper overhead gas returns to deheptanizer air cooler, C6 fraction at the bottom of tower delivers to aromatic extraction unit after isomerization stripping tower bottom cooler is cooled to 43 DEG C.
This technique exists in deheptanizer tower top C3-C5 component cannot extraction from system, it is impossible to the defect of recovered liquid activating QI component.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, and provides a kind of simple in construction, easy to operate, and can be by the extraction from deheptanizer of C3-C5 component, moreover it is possible to the device of recovered liquid activating QI component.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of retracting device of liquefied gas component, including deheptanizer I, tower top air cooler I, return tank I and overhead reflux pump I, connect between described deheptanizer I, tower top air cooler I, return tank I and overhead reflux pump I and have circulating line I, form deheptanizer and connect tower top air cooler I, tower top air cooler I connection return tank I, return tank I connection overhead reflux pump I；Overhead reflux pump I connects the structure of deheptanizer I, is provided with two delivery pumps at the arrival line of described overhead reflux pump I, and delivery pump outlet is connected with conveying pipe and is communicated to depentanizer, is provided with the temperature adjusting plate that can divide extraction flow in described deheptanizer I.
Further, described depentanizer is provided with circulation pipe II, the top of depentanizer is located in one end of circulation pipe II, the other end is located at the side on depentanizer top, described circulation pipe II is provided with tower top air cooler II, return tank II and overhead reflux pump II, and the circulation pipe II between overhead reflux pump II and depentanizer is provided with liquefaction letter shoot, liquefied gas component realizes separating in depentanizer, reclaims from depentanizer tower top.
Compared with prior art, this utility model has following beneficial effect: process structure is simple, it is convenient to run, and has reclaimed the liquefied gas component that isomerization reaction produces, has improve product surcharge, it is not necessary to additionally increase knockout tower.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is partial structurtes schematic diagram of the present utility model.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with accompanying drawing, but should not be understood as the restriction to the application.
As shown in Figure 2, a kind of device of recovered liquid activating QI component, including deheptanizer I1, tower top air cooler I2, return tank I3 and overhead reflux pump I4, connect between described deheptanizer I1, tower top air cooler I2, return tank I3 and overhead reflux pump I4 and have circulating line I, form deheptanizer 1 and connect tower top air cooler I2；Tower top air cooler I2 connects return tank I3；Return tank I3 connects overhead reflux pump I4；Overhead reflux pump I4 connects the structure of deheptanizer I1, the porch of described overhead reflux pump I4 is provided with two delivery pumps 9, delivery pump outlet is connected with conveying pipe and is communicated to depentanizer 5, light component is delivered to the depentanizer 5 of reformer, being provided with temperature adjusting plate in described deheptanizer I1, it can control the extraction flow of the light component of tower top.
Described depentanizer 5 is provided with circulation pipe II, the top of depentanizer 5 is located in one end of circulation pipe II, the other end is located at the side on depentanizer 5 top, described circulation pipe II is provided with tower top air cooler II6, return tank II7 and overhead reflux pump II8, and the circulation pipe II between overhead reflux pump II8 and depentanizer is provided with liquefaction letter shoot, liquefied gas component realizes separating in depentanizer, reclaims from depentanizer tower top.
The foregoing is only preferred embodiment of the present utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (2)
1. a liquefied gas component retracting device, including deheptanizer I (1), tower top air cooler I (2), return tank I (3) and overhead reflux pump I (4), it is characterized in that: connecting between described deheptanizer (1), tower top air cooler I (2), return tank I (3) and overhead reflux pump I (4) has circulating line I, form deheptanizer (1) and connect tower top air cooler I (2)；Tower top air cooler I (2) connects return tank I (3)；Return tank I (3) connects overhead reflux pump I (4)；Overhead reflux pump I (4) connects the structure of deheptanizer I (1), the porch of described overhead reflux pump I (4) is provided with two delivery pumps (9), delivery pump outlet is connected with conveying pipe and is communicated to depentanizer (5), is provided with, in described deheptanizer I (1), the temperature adjusting plate that can divide extraction flow.
A kind of liquefied gas component retracting device the most according to claim 1, it is characterized in that: described depentanizer (5) is provided with circulation pipe II, the top of depentanizer (5) is located in one end of circulation pipe II, the other end is located at the side on depentanizer (5) top, the circulation pipe II that described circulation pipe II is provided with between tower top air cooler II (6), return tank II (7) and overhead reflux pump II (8), and overhead reflux pump II (8) and depentanizer is provided with liquefaction letter shoot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141245.2U CN205443195U (en) | 2015-12-31 | 2015-12-31 | Liquefied gas component recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141245.2U CN205443195U (en) | 2015-12-31 | 2015-12-31 | Liquefied gas component recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205443195U true CN205443195U (en) | 2016-08-10 |
Family
ID=56600286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521141245.2U Active CN205443195U (en) | 2015-12-31 | 2015-12-31 | Liquefied gas component recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205443195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336731A (en) * | 2018-12-08 | 2019-02-15 | 大连福佳·大化石油化工有限公司 | Improved crude benzol production system |
| CN110849193A (en) * | 2019-12-20 | 2020-02-28 | 大连福佳·大化石油化工有限公司 | Air cooling waste heat utilization system |
-
2015
- 2015-12-31 CN CN201521141245.2U patent/CN205443195U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336731A (en) * | 2018-12-08 | 2019-02-15 | 大连福佳·大化石油化工有限公司 | Improved crude benzol production system |
| CN110849193A (en) * | 2019-12-20 | 2020-02-28 | 大连福佳·大化石油化工有限公司 | Air cooling waste heat utilization system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6487543B2 (en) | Distillation equipment | |
| CN205443195U (en) | Liquefied gas component recovery unit | |
| CN102391064B (en) | Process for recovering and refining extracting agent in production procedure of hexanolactam | |
| CN101337860A (en) | Method and device for recovering low-boiling-point compound from heavy tar of phenylethene | |
| CN102796571B (en) | System for producing light benzene by performing negative pressure debenzolization on rich oil | |
| CN209292254U (en) | A kind of improved crude benzol production system | |
| CN205850277U (en) | A kind of Oleum Terebinthinae multiple-stage separating column | |
| CN204932912U (en) | A kind of stabilizer for benzene hydrogenation system | |
| CN206027129U (en) | High yield distillation system of propane diamine production line | |
| CN102964262B (en) | DMF recovery method in a kind of synthetic leather production | |
| CN104693005A (en) | New process for separating methanol-propyl formate azeotrope through extractive distillation | |
| CN106318435A (en) | Normal pressure distillation method | |
| CN104211553A (en) | Method for purification of isooctane | |
| CN107162875A (en) | A kind of technique and system that refined methanol and absolute ethyl alcohol are extracted from crude carbinol | |
| CN103845915B (en) | Multi-stage flash evaporation separation equipment of toluene disproportionation reaction effluent and separation method thereof | |
| CN104817421A (en) | Method for separating light hydrocarbon by using light hydrocarbon separation device | |
| CN111334325A (en) | Method for transforming industrial naphthalene system into wash oil purification system | |
| CN203971433U (en) | The de-dimethyl ether system of carbon four after ether | |
| CN109336731A (en) | Improved crude benzol production system | |
| CN217297348U (en) | Organic waste liquid separation and purification device | |
| CN102443408A (en) | Pressure reduction distillation process method | |
| CN204714722U (en) | Be rich in methanol-fueled CLC oil in the material of unsym-trimethyl benzene and be separated pseudocumene unit | |
| CN203886220U (en) | Pre-distillation device | |
| CN203803132U (en) | Combined solvent deacidification, dechlorination and deamination equipment | |
| CN215162248U (en) | Hydrogenation oil separation system for crude benzene hydrofining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |