WO1995026314A1 - Verfahren und vorrichtung zur emissionsminderung an atmungsleitungen von lagertanks - Google Patents
Verfahren und vorrichtung zur emissionsminderung an atmungsleitungen von lagertanks Download PDFInfo
- Publication number
- WO1995026314A1 WO1995026314A1 PCT/DE1995/000383 DE9500383W WO9526314A1 WO 1995026314 A1 WO1995026314 A1 WO 1995026314A1 DE 9500383 W DE9500383 W DE 9500383W WO 9526314 A1 WO9526314 A1 WO 9526314A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- valve
- pump
- pressure
- tank
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
- B67D7/0478—Vapour recovery systems constructional features or components
- B67D7/049—Vapour recovery methods, e.g. condensing the vapour
Definitions
- the invention relates to a method and a device for separating a liquid-vapor / gas mixture which arises from a liquid in a container and which is discharged from the container via a discharge line in order to compensate for excess pressure.
- the invention relates to a method and a device for separating a hydrocarbon vapor / gas mixture which flows from the breathing line of an example underground tank for liquid hydrocarbons, in particular fuels for combustion engines, to compensate for the excess pressure prevailing in the tank is expelled.
- the fuel supply is generally located in underground storage tanks which are connected to the outside atmosphere for pressure equalization via at least one ventilation device, the so-called breathing line, so that no unacceptable overpressure or underpressure can arise in the tank.
- the invention has for its object to provide a method and an apparatus with which the pollutant emission in the area of the breathing line of a tank for storing liquids, in particular fuels for motor vehicles, can be reduced.
- the object is achieved by a method according to the invention in that the liquid-gas mixture is guided from the container through at least one membrane device with at least one separating membrane, on the permeate side of which at least temporarily by means of at least one pump device for generating a negative pressure a negative pressure is generated and the permeate enriched with the liquid vapor is returned to the container, and that the retentate enriched with the liquid vapor is discharged via the discharge line.
- This method according to the invention for reducing the pollutant emission in the area of the discharge of a storage tank can be carried out using simple means.
- the pump device is switched on as a function of the excess pressure prevailing in the container when a predetermined excess pressure is exceeded.
- This has the advantage that the pump device is only in operation when a steam-gas mixture flows out, so that the energy consumption can be kept low.
- the tank can be ventilated to compensate for a negative pressure in the tank through the discharge line, since when the pump device is switched off and the surrounding air flows in, there is no risk that the separating membrane may be damaged by Clogged dirt particles in the ambient air.
- the discharge line can be closed by at least one pressure relief valve, and the pump device is closed Depends on the position of the valve when the valve is open and off when the valve is closed.
- This procedure has the advantage that the tank for the fuel is completely closed at pressure equilibrium, so that diffusion processes between the vapor-gas mixture above the liquid, on the one hand, and the outside atmosphere, on the other hand, cannot take place without pressure.
- this procedure can be carried out with very simple means, since , for example, all that is required is a mechanical switch which is removed from the valve body, e.g. B. the valve ball, can be actuated and immediately switches on the pump device.
- the pump device for generating the negative pressure on the permeate side of the membrane is switched on as a function of the position of a removal and / or filling of the tank for the liquid for the liquid when the valve is open.
- This has the advantage that a steam-gas mixture which is possibly escaping is reliably freed from the liquid vapor load, in particular when the filling state of the tank is actively influenced.
- the removal device containing the removal valve is provided with a so-called active return system for steam-gas mixtures described at the outset, which are created when the liquid is transferred, for example when a motor vehicle is being refueled.
- the device according to the invention for separating a liquid vapor / gas mixture which is formed over a liquid in a container and which is discharged from the container via a discharge line for pressure compensation has at least one membrane device with at least one Separation membrane on whose supply side for the liquid vapor / gas mixture is connected to the container and whose retentate side is connected to the discharge line, the permeate side for returning the permeate enriched with the liquid vapor being connected to the container via a pump device for generating a negative pressure on the permeate side of the separation membrane i st.
- an overpressure switch is present, the pressure transducer is connected to the inside of the container and which cooperates with the pump for generating a negative pressure in such a way that the pump is switched on when a predetermined pressure in the container is exceeded.
- the derivation is at least one Throttle element has. This has the advantage that an excess steam / gas mixture which may be present in the container cannot easily escape through the discharge line, but rather an excess pressure is built up first, so that the excess pressure switch can respond.
- the throttle el ement is designed as a pinhole.
- the perforated diaphragm can be inserted in a simple manner into the discharge line of the container, which is generally designed as a pipeline.
- the discharge line has at least one pressure relief valve, through which the discharge line can be closed, and that at least one control switch having a control switch is provided, which is designed in such a way with the Pressure relief valve and the pump device for generating a negative pressure cooperate so that the pump device is switched on when the valve is open and off when the valve is closed.
- This arrangement has the advantage that the device for separating the emerging steam-gas mixture can also be used in the case of completely closable containers for storing liquids, in particular fuels for internal combustion engines.
- FIG. 1 in schematic a gas station with a device for performing the method according to the invention
- FIG. 2 in schematic a gas station with a device for performing the method according to the Invention in another embodiment.
- FIGS. 1 and 2 have essentially the same structure and differ mainly in the control of the vacuum pump to generate the negative pressure on the permeate side of the separating branch.
- the same equipment parts and elements are therefore provided with the same reference symbols.
- the petrol station shown schematically in the drawing
- the 1 has a tank 2 for storing the fuel supply 3.
- the tank 2 is connected to a removal device 4 for the liquid fuel.
- a ventilation device 5 is provided, through which a pressure equalization of the tank 2 with the surroundings 6 can take place.
- the tank 2 is provided with a filling device 7, via which the fuel enters the tank
- the removal device 4 has a generally known dispenser 8, to which the dispenser 9 is connected via a flexible connecting hose 11 for refueling a motor vehicle 10. Furthermore, the removal device 4 is provided with an active return system 12, not shown in the drawing, of the steam-gas mixture formed when the motor vehicle is refueled. These feedback systems 12 are generally known and do not require any further explanation.
- the ventilation device 5 has a membrane device 29 with a separating membrane 13. The retentate side
- the arrangement is such that the line 15 opens into the tank 2 in the upper region 17 of the tank 2 above the liquid level 18.
- a fuel vapor / air mixture which may emerge from the tank 2 for pressure equalization can therefore only reach the surroundings 6 through the line 15 via the membrane device 29 through the discharge line 16.
- the permeate side 19 of the membrane device 29 is connected to the vacuum side of a vacuum pump 20, which in turn is connected to the tank 2.
- a negative pressure is present on the permeate side 19 of the membrane device 29, so that the fuel vapor of a steam-air mixture loaded with it and flowing through the membrane device on the retentate side 14 can also permeate the separating membrane 13.
- the separating membrane 13 is expediently designed as a semi-permeable gas separating membrane. The permeate thus enriched with fuel vapor can be returned to tank 2 via vacuum pump 20.
- an overpressure switch 21 is provided to control the vacuum pump 20, the pressure sensor 22 of which is arranged in the upper region 17 of the tank 2.
- This pressure sensor 22 interacts with a switch 23 for the vacuum pump 20.
- the arrangement is such that when a predeterminable overpressure in the tank 2 is exceeded, the switch 23 responds and puts the vacuum pump 20 into operation.
- the vapor-air mixture emerging due to the excess pressure prevailing in the interior of the tank 2 flows through the membrane device 29, in which the fuel vapor due to the pressure present Vacuum at the separating membrane 13 is separated from the vapor-air mixture, so that the retentate emerging through the discharge line 16 is largely freed of fuel vapor.
- the discharge line 16 has a throttle element 24 designed as a perforated disk 25.
- the discharge line 16 has a pressure relief valve 26 which opens when a liquid vapor / gas mixture escapes. Furthermore, a vacuum valve 27 is provided, which opens in the interior of the tank 2 when the ambient air flows in when there is negative pressure.
- the pressure relief valve 26 is provided with a control 1 switch 28 which interacts with the vacuum pump 20. Specifically, the arrangement is such that the control 1 scarf ter 28 with the valve 26 open, that is, when the steam-gas mixture escapes, responds and puts the vacuum pump 20 into operation. This reliably ensures that when the steam-gas mixture escapes, the separation process taking place in the membrane device 29 is carried out.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95913040A EP0752974B1 (de) | 1994-03-26 | 1995-03-22 | Verfahren und vorrichtung zur emissionsminderung an atmungsleitungen von lagertanks |
JP52489695A JP3761570B2 (ja) | 1994-03-26 | 1995-03-22 | 貯蔵槽から排気管へ排出される燃料蒸気と空気の混合物から燃料蒸気を分離する方法および装置 |
US08/732,340 US6059856A (en) | 1994-03-26 | 1995-03-22 | Method and apparatus for reducing emissions from breather lines of storage tanks |
DE59507252T DE59507252D1 (de) | 1994-03-26 | 1995-03-22 | Verfahren und vorrichtung zur emissionsminderung an atmungsleitungen von lagertanks |
DK95913040T DK0752974T3 (da) | 1994-03-26 | 1995-03-22 | Fremgangsmåde og apparat til mindskelse af afgivelser ud fra åndeledninger til tanklagre |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4410597A DE4410597C2 (de) | 1994-03-26 | 1994-03-26 | Verfahren und Vorrichtung zur Emissionsminderung an Atmungsleitungen von Lagertanks |
DEP4410597.5 | 1994-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995026314A1 true WO1995026314A1 (de) | 1995-10-05 |
Family
ID=6513970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/000383 WO1995026314A1 (de) | 1994-03-26 | 1995-03-22 | Verfahren und vorrichtung zur emissionsminderung an atmungsleitungen von lagertanks |
Country Status (7)
Country | Link |
---|---|
US (1) | US6059856A (de) |
EP (1) | EP0752974B1 (de) |
JP (1) | JP3761570B2 (de) |
AT (1) | ATE186710T1 (de) |
DE (2) | DE4410597C2 (de) |
DK (1) | DK0752974T3 (de) |
WO (1) | WO1995026314A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105600209A (zh) * | 2015-12-30 | 2016-05-25 | 江苏海企化工仓储股份有限公司 | 一种在装卸过程中防止醋酸外泄的保护装置 |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0799790A1 (de) * | 1996-04-03 | 1997-10-08 | Dresser Industries, Inc. | Kraftstoffabgabe- und Dampf- Rückgewinnungssystem sowie Verfahren unter Verwendung einer Trennmembrane |
DE19813349C1 (de) * | 1998-03-26 | 1999-09-09 | Bayer Ag | Verfahren und Vorrichtung zum Verhindern von dampfförmigen Emissionen aus Tanks mit dämpfebildenden Flüssigkeiten |
US6478849B1 (en) * | 2000-08-11 | 2002-11-12 | Dresser, Inc. | Vapor recovery system for fuel storage tank |
MD2074G2 (ro) * | 2000-12-29 | 2003-06-30 | Юрий НИКИТИН | Procedeu şi instalaţie de captare a vaporilor de carburant la staţiile de alimentare cu petrol, condensator al vaporilor de carburant utilizat în instalaţia menţionată |
AT411357B (de) * | 2001-10-22 | 2003-12-29 | Efkon Ag | Gas-waschanlage |
AT504365B8 (de) * | 2002-10-30 | 2008-09-15 | Exess Engineering Gmbh | Einrichtung zur abscheidung von benzindämpfen |
US6887300B2 (en) * | 2003-01-24 | 2005-05-03 | Cms Technology Holdings, Inc. | Cyclic membrane separation process |
US6719824B1 (en) | 2003-01-24 | 2004-04-13 | Cms Technology Holdings, Inc. | Cyclic membrane separation process |
US7509982B2 (en) * | 2003-10-10 | 2009-03-31 | Vapor Systems Technologies, Inc. | Vapor recovery system with improved ORVR compatibility and performance |
US6810922B1 (en) | 2003-10-10 | 2004-11-02 | Vapor Systems Technologies, Inc. | Vapor recovery system with improved ORVR compatibility and performance |
JP4575673B2 (ja) * | 2004-01-19 | 2010-11-04 | コスモエンジニアリング株式会社 | ガソリンベーパーの回収方法及び回収装置 |
US7326285B2 (en) * | 2005-05-24 | 2008-02-05 | Rmt, Inc. | Methods for recovering hydrocarbon vapors |
US8376000B2 (en) | 2006-05-10 | 2013-02-19 | Delaware Capital Formation, Inc. | Hydrocarbon vapor emission control |
JP4658888B2 (ja) * | 2006-09-25 | 2011-03-23 | Jfeエンジニアリング株式会社 | ベーパー回収装置及びベーパー回収方法 |
WO2008144273A1 (en) * | 2007-05-17 | 2008-11-27 | Cms Technologies Holdings, Inc. | Volatile emission control for inaccessible storage tanks |
US7825816B2 (en) | 2007-08-20 | 2010-11-02 | Capital Formation Inc | Sensing device arrangement for fuel storage tanks |
US8167003B1 (en) | 2008-08-19 | 2012-05-01 | Delaware Capital Formation, Inc. | ORVR compatible refueling system |
US9604837B2 (en) | 2012-01-06 | 2017-03-28 | Husky Corporation | ORVR valve assembly |
CN105110284A (zh) * | 2015-08-13 | 2015-12-02 | 中国石油化工股份有限公司 | 基于真空度监测的车载油气回收与加油油气回收适配方法 |
CN105174191A (zh) * | 2015-08-13 | 2015-12-23 | 中国石油化工股份有限公司 | 基于浓度监测的车载油气回收与加油油气回收适配方法 |
KR102592236B1 (ko) * | 2016-04-28 | 2023-10-20 | 한화파워시스템 주식회사 | 유증기 처리 장치 |
EP3623038B1 (de) * | 2018-09-13 | 2022-01-12 | Helmholtz-Zentrum hereon GmbH | Membrantaschenmodul mit verdrehsicherem aufbau |
CN113226949B (zh) | 2018-11-14 | 2023-06-02 | 富兰克林加油系统公司 | 压力真空阀 |
Citations (6)
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DE8702074U1 (de) * | 1987-02-11 | 1987-04-30 | Schwefer, Hans Jürgen, Dipl.-Ing., 5100 Aachen | Einrichtung an einem Fahrzeug mit einem nachtankbaren Behälter für kohlenwasserstoffhaltige Fluide |
EP0329962A2 (de) * | 1988-02-26 | 1989-08-30 | Gkss-Forschungszentrum Geesthacht Gmbh | Verfahren zum Austrag organischer Verbindungen aus Luft/Permanentgasgemischen |
DE9205552U1 (de) * | 1992-04-24 | 1993-08-26 | Oscar Gossler KG (GmbH & Co), 21465 Reinbek | Anordnung mit Gasrückführung zur Betankung von Kraftfahrzeugen |
WO1993022031A1 (de) * | 1992-04-27 | 1993-11-11 | Gkss-Forschungszentrum Geesthacht Gmbh | Verfahren und vorrichtung zur trennung von über flüssigkeiten entstehenden gasgemischen |
DE4225170A1 (de) * | 1992-07-30 | 1994-02-03 | Preussag Anlagenbau | Tankanlage und Verfahren zum Betrieb einer Tankanlage mit einem Tank zur Lagerung von brennbaren Flüssigkeiten |
WO1995013984A1 (en) * | 1993-11-16 | 1995-05-26 | Gilbarco Inc. | Method and apparatus for reducing hydrocarbon emissions from a fuel storage tank |
Family Cites Families (5)
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JPS4910409A (de) * | 1972-05-25 | 1974-01-29 | ||
US3874427A (en) * | 1974-03-20 | 1975-04-01 | Calgon Corp | Fuel vapor recovery system |
IT1228284B (it) * | 1989-01-04 | 1991-06-07 | Nuovo Pignone Spa | Sistema perfezionato per un sicuro recupero vapori, particolarmente adatto per impianti di distribuzione carburanti |
JP3027606B2 (ja) * | 1989-06-15 | 2000-04-04 | デユポン・カナダ・インコーポレーテツド | パーフルオロジオキソール膜 |
US5220799A (en) * | 1991-12-09 | 1993-06-22 | Geert Lievens | Gasoline vapor recovery |
-
1994
- 1994-03-26 DE DE4410597A patent/DE4410597C2/de not_active Expired - Fee Related
-
1995
- 1995-03-22 JP JP52489695A patent/JP3761570B2/ja not_active Expired - Lifetime
- 1995-03-22 EP EP95913040A patent/EP0752974B1/de not_active Expired - Lifetime
- 1995-03-22 US US08/732,340 patent/US6059856A/en not_active Expired - Lifetime
- 1995-03-22 WO PCT/DE1995/000383 patent/WO1995026314A1/de active IP Right Grant
- 1995-03-22 AT AT95913040T patent/ATE186710T1/de active
- 1995-03-22 DK DK95913040T patent/DK0752974T3/da active
- 1995-03-22 DE DE59507252T patent/DE59507252D1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8702074U1 (de) * | 1987-02-11 | 1987-04-30 | Schwefer, Hans Jürgen, Dipl.-Ing., 5100 Aachen | Einrichtung an einem Fahrzeug mit einem nachtankbaren Behälter für kohlenwasserstoffhaltige Fluide |
EP0329962A2 (de) * | 1988-02-26 | 1989-08-30 | Gkss-Forschungszentrum Geesthacht Gmbh | Verfahren zum Austrag organischer Verbindungen aus Luft/Permanentgasgemischen |
DE9205552U1 (de) * | 1992-04-24 | 1993-08-26 | Oscar Gossler KG (GmbH & Co), 21465 Reinbek | Anordnung mit Gasrückführung zur Betankung von Kraftfahrzeugen |
WO1993022031A1 (de) * | 1992-04-27 | 1993-11-11 | Gkss-Forschungszentrum Geesthacht Gmbh | Verfahren und vorrichtung zur trennung von über flüssigkeiten entstehenden gasgemischen |
DE4225170A1 (de) * | 1992-07-30 | 1994-02-03 | Preussag Anlagenbau | Tankanlage und Verfahren zum Betrieb einer Tankanlage mit einem Tank zur Lagerung von brennbaren Flüssigkeiten |
WO1995013984A1 (en) * | 1993-11-16 | 1995-05-26 | Gilbarco Inc. | Method and apparatus for reducing hydrocarbon emissions from a fuel storage tank |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105600209A (zh) * | 2015-12-30 | 2016-05-25 | 江苏海企化工仓储股份有限公司 | 一种在装卸过程中防止醋酸外泄的保护装置 |
CN105600209B (zh) * | 2015-12-30 | 2016-10-26 | 江苏海企化工仓储股份有限公司 | 一种在装卸过程中防止醋酸外泄的保护装置及其操作方法 |
Also Published As
Publication number | Publication date |
---|---|
DK0752974T3 (da) | 2000-05-15 |
MX9604302A (es) | 1998-10-31 |
ATE186710T1 (de) | 1999-12-15 |
JPH09511202A (ja) | 1997-11-11 |
JP3761570B2 (ja) | 2006-03-29 |
EP0752974A1 (de) | 1997-01-15 |
DE4410597A1 (de) | 1995-09-28 |
DE4410597C2 (de) | 1999-07-22 |
EP0752974B1 (de) | 1999-11-17 |
DE59507252D1 (de) | 1999-12-23 |
US6059856A (en) | 2000-05-09 |
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