CN202482274U - Evaporable petroleum gas adsorption condensation and comprehensive recovery device - Google Patents
Evaporable petroleum gas adsorption condensation and comprehensive recovery device Download PDFInfo
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- CN202482274U CN202482274U CN2012200338796U CN201220033879U CN202482274U CN 202482274 U CN202482274 U CN 202482274U CN 2012200338796 U CN2012200338796 U CN 2012200338796U CN 201220033879 U CN201220033879 U CN 201220033879U CN 202482274 U CN202482274 U CN 202482274U
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Abstract
An evaporable petroleum gas adsorption condensation and comprehensive recovery device for loss control and pollution reduction during the storage and transportation of gasoline and light-weight oil includes an adsorption system and a condensation system, wherein a secondary separator, a liquid gas jet pump and an absorber are arranged in the adsorption system; an air compressor, a turbine expansion engine and a heat exchanger are arranged in the condensation system; the liquid gas jet pump is connected with the absorber; the absorber is connected with a main heat exchanger; the main heat exchanger is connected with the absorber through the secondary separator; the air compressor and the main heat exchanger are arranged at the front end and the rear end of the turbine expansion engine respectively; the air compressor produces delivery pressure; the turbine expansion engine refrigerates air; and the air serving as a cold source refrigerates the petroleum gas. According to the utility model, lean oil inside the absorber is used for absorbing hydrocarbon materials of the petroleum gas, and the main heat exchanger and the secondary separator are used for processing the petroleum gas, so that the recovery rate is improved, and discharge meeting the standard is realized; and the evaporable petroleum gas adsorption condensation and comprehensive recovery device is widely applied to petroleum gas recovery during the transshipment of gasoline and light-weight oil, and has the advantages of higher recovery rate, tail gas discharge meeting the standard, simple and reasonable structure as well as safe and reliable operation.
Description
Technical field
The utility model relates to the vaporizing oil-gas recovery system of a kind of gasoline and lightweight oil storage and transport process, the comprehensive retrieving arrangement of specifically a kind of volatilization petroleum gas adsorption condensing.
Background technology
The single recovery method that the recovery of petroleum gas is adopted usually has adsorption type, condensing and membrane sepn formula, and the single formula of this type reclaims the method for petroleum gas, and its recovery is not high, and the exhaust emissions after the recovery is not up to standard.Chinese patent CN101161590 discloses a kind of condensation and membrane separation combined type oil gas reclaiming technical technology, the greatest drawback of its membrane separation process be the General Maintenance cost higher, cause secondary pollution easily.
Summary of the invention
The purpose of the utility model is to provide a kind of volatilization petroleum gas adsorption condensing comprehensive retrieving arrangement; It can improve the recovery of volatilization petroleum gas, the tail gas qualified discharge after realize reclaiming effectively, reduce reliably volatilization petroleum gas recovery system operation expense, avoid secondary pollution.
The technical scheme that the utility model is dealt with problems is:
Design a kind of comprehensive retrieving arrangement of forming by adsorption system, condenser system and system's auxiliary of volatilization petroleum gas adsorption condensing; Be provided with second separator, liquid-gas jet pump and resorber in the adsorption system; Be provided with air compressor machine, turbo-expander and main heat exchanger in the condenser system; Liquid-gas jet pump connects resorber, and resorber connects main heat exchanger, and main heat exchanger connects resorber through second separator.
In the condenser system, the front end of turbo-expander is provided with air compressor machine, and the rear end of turbo-expander is provided with main heat exchanger, and air compressor machine produces transfer pressure, the turbo-expander cooling air, and make low-temperature receiver with air and through main heat exchanger petroleum gas is freezed.
The beneficial effect of the utility model is: owing to adopted the comprehensive retrieving arrangement of forming by adsorption system and condenser system, thereby overcome the not high defective not up to standard of the recovery of single recovery method with discharging.Simultaneously owing to be provided with second separator, liquid-gas jet pump and resorber, the further gas-liquid separation of petroleum gas after helping lowering the temperature in the adsorption system.In addition because main heat exchanger connects two systems, thereby realized the usefulness of comprehensive recovery.That the utility model also has is simple and reasonable, safe and reliable to operation, maintenance cost is lower, avoid the advantage of secondary pollution.
Description of drawings
Fig. 1 is that the equipment of the utility model cooperates synoptic diagram.
Among the figure, 1, adsorption system, 2, condenser system, 3, system's auxiliary, 4, pre-cooler, 5, a separator; 6, second separator, 7, liquid-gas jet pump, 8, resorber, 9, oil-poor oil pump, 10, reclaim oil pump, 11, absorption end water cooler; 12, air ejector, 13, sound damper, 14, air compressor machine, 15, instrument air dryer, 16, strainer, 17, turbo-expander; 18, condensation end water cooler, 19, water cooler, 20, main heat exchanger, 21, valve, 22, pipeline.
Embodiment
The embodiment that provides below in conjunction with accompanying drawing divides three parts that the utility model is further specified.
The first, the integral part of the utility model.
Adsorption system (1) comprising: pre-cooler (4), and a separator (5), second separator (6), liquid-gas jet pump (7), resorber (8), oil-poor oil pump (9) reclaims oil pump (10), absorption end water cooler (11), air ejector (12), sound damper (13).
Condenser system (2) comprising: air compressor machine (14), instrument air dryer (15), strainer (16), turbo-expander (17), condensation end water cooler (18), water cooler (19), main heat exchanger (20).
System's auxiliary (3) comprising: valve (21), pipeline (22).
The second, the petroleum gas of the utility model reclaims principle and effect.
Adsorption system (1) is a kind of jet-type adsorption system (1), utilizes the oil-poor sorbent material of doing of solar oil class, and the oil-poor petroleum gas that absorbs gradually becomes rich oil, gets into freshening factory then and returns white silk.Condenser system (2) is an a kind of air turbo swell refrigeration system, it can be in 20 minutes with the pressurized air fast-refrigerating of normal temperature to-72 ℃.Normal temperature, normal pressure gas-oil mixture are mixed into resorber (8) from the normal temperature solar oil class in the tourie is oil-poor by liquid-gas jet pump (7) injection; Petroleum gas about 80% in this resorber (8) in the petroleum gas mixture is by the oil-poor absorption of solar oil class, and the petroleum gas recovery reaches more than 95%.In addition; Do not discharged from resorber (8) top by about 20% petroleum gas and air of the oil-poor absorption of solar oil class; Through main heat exchanger (20), by the Cryogenic air condensation once more that turbo-expander (17) is discharged, this process; Have the petroleum gas about 80% to be condensed approximately, the petroleum gas and the air Mixture of surplus about 20% enter atmosphere.The petroleum gas concentration that enter the petroleum gas mixture in the atmosphere this moment accounts for 25g/Nm for NMHC content
3, realize qualified discharge.The petroleum gas recovery that adopts single absorption method is between 70% to 80%, and exhaust emissions can not be up to standard.
The 3rd, the petroleum gas removal process of the utility model.
The oil gas that the point of loading produced enters into system through airtight oil filling riser gas extractor, and behind cooling de-watering, quilt is oil-poor with the solar oil class to be liquid-gas jet pump (7) suction of medium, through fully getting into resorber (8) after the gas-liquid mixed.Hydro carbons about 80% in resorber (8) in the petroleum gas mixture is by the oil-poor absorption of solar oil class, and unabsorbed petroleum gas gets into main heat exchanger (20), is cooled to-55 ℃ and gets into second separator (6), carries out gas-liquid and fully separates.Gas phase part is come out from second separator (6) top, gets into pre-cooler (4) oil vapour is carried out the precooling back discharging that dewaters, and at this moment, the total hydrocarbon concentration content of tail gas is less than the 25g/Nm of regulation
3, reach discharging standards.
Air gets into air compressor machine (14) by " air " path and carries out processed compressed, passes through instrument air dryer (15) then with strainer (16) carries out drying and purifying treatment respectively, gets into turbo-expander (17) realization swell refrigeration again, with as the low-temperature receiver in the total system.The low-temperature receiver air freezes to petroleum gas through main heat exchanger (20), makes the cold limit of main heat exchanger gas inlet reach-72 ℃, guarantees that hot curb oil gas carries out gas-liquid at-55 ℃ of entering second separators (6) and fully separates, and makes gas phase partly reach discharging standards.
The air pressure of petroleum gas is just obtained by the liquid-gas jet pump (7) of resorber (8) front end; Be merely 30KPa, after the pressure-losses of several secondary devices, pressure is almost nil during discharging; Therefore in pre-cooler (4) rear end air ejector (12) is set; With the dry air injection discharging of turbine outlet, form the dry air path of " meeting A " to " A ", to improve the pressure difference of petroleum gas in system.
The liquid phase petroleum gas of separating out from second separator (6) bottom enters into resorber (8) recycling; After treating that solar oil class in the resorber (8) is oil-poor and progressively changing into rich oil; By reclaiming oil pump (10) pumping; Pump into the refinery freshening through " freshening " path, and oil-poor by the additional new solar oil class of oil-poor oil pump (9).
Claims (2)
1. the comprehensive retrieving arrangement of petroleum gas adsorption condensing volatilizees; It is characterized in that: it is made up of adsorption system (1) and condenser system (2); Be provided with second separator (6), liquid-gas jet pump (7) and resorber (8) in the adsorption system (1), be provided with air compressor machine (14), turbo-expander (17) and main heat exchanger (20) in the condenser system (2), liquid-gas jet pump (7) connects resorber (8); Resorber (8) connects main heat exchanger (20), and main heat exchanger (20) connects resorber (8) through second separator (6).
2. the comprehensive retrieving arrangement of volatilization petroleum gas adsorption condensing according to claim 1; Its characteristic is being: in the condenser system (2); The front end of turbo-expander (17) is provided with air compressor machine (14), and the rear end of turbo-expander (17) is provided with main heat exchanger (20), and air compressor machine (14) produces transfer pressure; Turbo-expander (17) cooling air, and make low-temperature receiver with air and through main heat exchanger (20) petroleum gas is freezed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200338796U CN202482274U (en) | 2012-02-03 | 2012-02-03 | Evaporable petroleum gas adsorption condensation and comprehensive recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200338796U CN202482274U (en) | 2012-02-03 | 2012-02-03 | Evaporable petroleum gas adsorption condensation and comprehensive recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN202482274U true CN202482274U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200338796U Expired - Fee Related CN202482274U (en) | 2012-02-03 | 2012-02-03 | Evaporable petroleum gas adsorption condensation and comprehensive recovery device |
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| CN (1) | CN202482274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602606A (en) * | 2015-12-18 | 2016-05-25 | 华南理工大学 | Process for recovering light hydrocarbons from crude oil distillation device, as well as system |
-
2012
- 2012-02-03 CN CN2012200338796U patent/CN202482274U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602606A (en) * | 2015-12-18 | 2016-05-25 | 华南理工大学 | Process for recovering light hydrocarbons from crude oil distillation device, as well as system |
| CN105602606B (en) * | 2015-12-18 | 2019-01-29 | 华南理工大学 | A kind of technique and system recycling LIGHT HYDROCARBONS IN CRUDE DISTILLATION UNIT |
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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: 20121010 Termination date: 20190203 |