CN204079831U - A kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit - Google Patents
A kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit Download PDFInfo
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- CN204079831U CN204079831U CN201420467889.XU CN201420467889U CN204079831U CN 204079831 U CN204079831 U CN 204079831U CN 201420467889 U CN201420467889 U CN 201420467889U CN 204079831 U CN204079831 U CN 204079831U
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- tower
- aromatic hydrocarbons
- absorption
- gas
- aromatization
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Abstract
The utility model belongs to the technical field of liquefied gas through aromatization device, is specially a kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit.Comprise absorption tower, stabilizer tower, and coordinated by a series of device, provide a kind of structure simple, good absorbing effect, cost is low, and the liquefied gas through aromatization aromatic hydrocarbons absorption unit of convenient operation, is conducive to industrialization, improves the economic benefit of enterprise, energy-conserving and environment-protective.
Description
Technical field
The utility model belongs to the technical field of liquefied gas through aromatization device, is specially a kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit.
Background technology
Absorption is a kind of method of separating gas mixture, its effect is the difference according to the solubleness of component each in gaseous mixture in same solvent (i.e. absorption agent), by gas, liquid multiple-contact, heat transfer, mass transfer realize the object of separating gas mixture.Desorb is two just in time contrary processes with absorption, and its principle is: according to the difference of component boiling point (i.e. relative volatility) each in liquid mixture, by gas, liquid multiple-contact, and heat transfer, mass transfer reach the object of separation of liquid mixtures.Stabilization process is a rectifying, and its action principle is identical with desorb principle.
With gasoline component in reactant gases (rich gas), in raw gasline, be then dissolved with C3, C4 even C2 component.The task of absorbing-stabilizing system is exactly utilize the method for absorption and rectifying rich gas and raw gasline to be separated into further the qualified product such as dry gas (≤C2), liquefied gas (C3, C4), stable gasoline.
Summary of the invention
The purpose of this utility model is to provide a kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit, comprise absorption tower, stabilizer tower, and coordinated by a series of device, provide a kind of structure simple, good absorbing effect, cost is low, the liquefied gas through aromatization aromatic hydrocarbons absorption unit of convenient operation, be conducive to industrialization, improve the economic benefit of enterprise, energy-conserving and environment-protective.
The technical solution of the utility model is:
A kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit, comprise absorption tower, stabilizer tower, the import on described absorption tower connects absorption tower feed cooler, and this feed cooler front end, absorption tower connects aromatic hydrocarbons interchanger, and the dry gas outlet at described top, absorption tower connects dry-gas recovery system, deethanizing fuel dispensing outlet at the bottom of described absorption tower by pump through the import of stabilizer tower feed exchanger I stable connection tower, described stable tower top light fraction outlet is through water cooler stable connection return tank of top of the tower, stablize the outlet of return tank of top of the tower non-condensable gas and connect dry-gas recovery system, stablize return tank of top of the tower liquefied petroleum gas (LPG) outlet stable connection tower top entrance respectively, liquefied petroleum gas storage tank, water cooler, stable gasoline outlet at the bottom of stabilizer tower connects weight-removing column respectively through stabilizer tower feed exchanger II, stablize aromatic hydrocarbons interchanger, stablize aromatic hydrocarbons water cooler, described stable aromatic hydrocarbons water cooler connects absorption tower respectively and heads into mouth and stable aromatic hydrocarbons storage tank.
Feature of the present utility model also has:
The import on described absorption tower is positioned at tower tray place, 31st ~ 34 layers, absorption tower.
Heated by Steam reboiler at the bottom of described absorption tower.
Described stabilizer tower import is positioned at 20 to 28 layers of tower tray place in the middle part of stabilizer tower.
Described stabilizer tower import is positioned at 23 to 26 layers of tower tray place in the middle part of stabilizer tower.
Heated by stabilizer tower reboiler at the bottom of described stabilizer tower.
The beneficial effects of the utility model are: liquefied gas through aromatization aromatic hydrocarbons absorption unit of the present utility model, by arranging rational equipment connecting relation, provide a kind of structure simple, good absorbing effect, cost is low, and the liquefied gas through aromatization aromatic hydrocarbons absorption unit of convenient operation, is conducive to industrialization, improve the economic benefit of enterprise, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model,
Wherein, 1-absorption tower feed cooler, 2-aromatic hydrocarbons interchanger, 3-absorption tower, 4-absorption tower heads into mouth, 5-dry gas exports, 6-dry-gas recovery system, the import of 7-stabilizer tower, 8-deethanizing fuel dispensing outlet, 9-pump, 10-stabilizer tower feed exchanger I, 11-stable gasoline exports, 12-weight-removing column, 13-stablizes aromatic hydrocarbons interchanger, 14-stablizes aromatic hydrocarbons water cooler, 15-stablizes aromatic hydrocarbons storage tank, 16-stabilizer tower, 17-light fraction outlet, 18-water cooler, 19-non-condensable gas exports, 20-stablizes return tank of top of the tower, 21-liquefied petroleum gas storage tank, 22-liquefied petroleum gas (LPG) exports, 23-water cooler, 24-stabilizer tower heads into mouth, 25-stabilizer tower feed exchanger II, the import on 26-absorption tower.
Embodiment
Below by specific embodiment, the technical solution of the utility model is described in detail.
A kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit, comprise absorption tower 3, stabilizer tower 16, the import 26 on described absorption tower connects absorption tower feed cooler 1, this absorption tower feed cooler 1 front end connects aromatic hydrocarbons interchanger 2, and the dry gas outlet 5 at described top, absorption tower connects dry-gas recovery system 6, at the bottom of described absorption tower, deethanizing fuel dispensing outlet 8 passes through pump 9 through stabilizer tower feed exchanger I 10 stable connection tower import 7, described stable tower top light fraction outlet 17 is through water cooler 18 stable connection return tank of top of the tower 20, stablize return tank of top of the tower non-condensable gas outlet 19 and connect dry-gas recovery system 6, stablize return tank of top of the tower liquefied petroleum gas (LPG) outlet 22 stable connection tower top entrance 24 respectively, liquefied petroleum gas storage tank 21, water cooler 23, stable gasoline outlet 11 at the bottom of stabilizer tower connects weight-removing column 12 respectively through stabilizer tower feed exchanger II 25, stablize aromatic hydrocarbons interchanger 13, stablize aromatic hydrocarbons water cooler 14, described stable aromatic hydrocarbons water cooler connects absorption tower respectively and heads into mouth 4 and stable aromatic hydrocarbons storage tank 15.
The import on described absorption tower is positioned at tower tray place, 31st ~ 34 layers, absorption tower.
Heated by Steam reboiler at the bottom of described absorption tower.
Described stabilizer tower import is positioned at 20 to 28 layers of tower tray place in the middle part of stabilizer tower.
Described stabilizer tower import is positioned at 23 to 26 layers of tower tray place in the middle part of stabilizer tower.
Heated by stabilizer tower reboiler at the bottom of described stabilizer tower.
The reaction mass of flow container is divided to be chilled to 40 DEG C to enter 31st ~ 34 layers, absorption tower tower tray through circulation liquefaction gas-gas phase aromatic hydrocarbons interchanger, absorption tower feed cooler from high pressure, in Ta Nei and absorption agent (stable gasoline) counter current contact from top of tower, dry gas after absorbing is drawn from tower top, and dry gas out delivers to dry-gas recovery system from tank top.
Heated by absorption tower Steam reboiler at the bottom of absorption tower, thermal source is steam.Resolution gas rises and absorbs oily contact separation.Deethanizing gasoline self-absorption column bottoms pump is extracted out through about stabilizer tower feed exchanger and stable gasoline heat exchange to 100 ~ 120 DEG C, enters 20 to 28 layers of tower tray place in the middle part of stabilizer tower.
At the bottom of stabilizer tower by stabilizer tower reboiler to heat supply in tower, thermal source is steam, and thermal source is thermal response product.C4 and below C4 light constituent distillates from tower top, and after stable tower top water cooler cooling, enter stabilizer tower top return tank, tank deck non-condensable gas is incorporated to dry gas pipeline and enters dry-gas recovery system.Liquefied petroleum gas (LPG) is extracted out with stablizing tower top reflux pump at the bottom of tank, and a road returns stable tower top as cold reflux, and a road liquefied petroleum gas (LPG) goes out device.Another road is delivered to through circulation liquefaction air pump and is made reaction cold feed.
Stable gasoline is out stablized aromatic hydrocarbons recycle pump divide three tunnels through stabilizer tower feed exchanger, warp at the bottom of tower: a road controls aromatics quality to weight-removing column, one road to raw material-stablize aromatic hydrocarbons interchanger, stablize aromatic hydrocarbons water cooler and be chilled to 40 DEG C and divide two-way again: absorption agent is made to absorbing tower top in a road, and another road goes out device.
In process of production. guarantee that each pressure tower, liquid level are steady. look stable gasoline, liquefied gas, dry gas quality change adjustment column bottom temperature and trim the top of column amount, reach raising yield of gasoline, improve quality of gasoline, produce the object that gas divides the qualified product such as raw material, dry gas.
control method during actually operating is provided, specific as follows:
The control of more than C2 component concentration in table 1 dry gas
The control of C5 content in table 2 liquid hydrocarbon
Table 3 absorption tower differential pressure is excessive
Claims (6)
1. a liquefied gas through aromatization aromatic hydrocarbons absorption unit, comprise absorption tower, stabilizer tower, it is characterized in that, the import on described absorption tower connects absorption tower feed cooler, this feed cooler front end, absorption tower connects aromatic hydrocarbons interchanger, and the dry gas outlet at described top, absorption tower connects dry-gas recovery system, deethanizing fuel dispensing outlet at the bottom of described absorption tower by pump through the import of stabilizer tower feed exchanger I stable connection tower, described stable tower top light fraction outlet is through water cooler stable connection return tank of top of the tower, stablize the outlet of return tank of top of the tower non-condensable gas and connect dry-gas recovery system, stablize return tank of top of the tower liquefied petroleum gas (LPG) outlet stable connection tower top entrance respectively, liquefied petroleum gas storage tank, water cooler, stable gasoline outlet at the bottom of stabilizer tower connects weight-removing column respectively through stabilizer tower feed exchanger II, stablize aromatic hydrocarbons interchanger, stablize aromatic hydrocarbons water cooler, described stable aromatic hydrocarbons water cooler connects absorption tower respectively and heads into mouth and stable aromatic hydrocarbons storage tank.
2. a kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit according to claim 1, is characterized in that, the import on described absorption tower is positioned at tower tray place, 31st ~ 34 layers, absorption tower.
3. a kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit according to claim 1, be is characterized in that, heated at the bottom of described absorption tower by Steam reboiler.
4. a kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit according to claim 1, is characterized in that, described stabilizer tower import is positioned at 20 to 28 layers of tower tray place in the middle part of stabilizer tower.
5. a kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit according to claim 4, is characterized in that, described stabilizer tower import is positioned at 23 to 26 layers of tower tray place in the middle part of stabilizer tower.
6. a kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit according to claim 1, be is characterized in that, heated at the bottom of described stabilizer tower by stabilizer tower reboiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467889.XU CN204079831U (en) | 2014-08-19 | 2014-08-19 | A kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467889.XU CN204079831U (en) | 2014-08-19 | 2014-08-19 | A kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204079831U true CN204079831U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467889.XU Expired - Fee Related CN204079831U (en) | 2014-08-19 | 2014-08-19 | A kind of liquefied gas through aromatization aromatic hydrocarbons absorption unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204079831U (en) |
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2014
- 2014-08-19 CN CN201420467889.XU patent/CN204079831U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150107 Termination date: 20170819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |