WO2014184314A1 - Procédé de fabrication d'un système de distribution de boisson comprenant une alimentation en gaz - Google Patents

Procédé de fabrication d'un système de distribution de boisson comprenant une alimentation en gaz Download PDF

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Publication number
WO2014184314A1
WO2014184314A1 PCT/EP2014/060009 EP2014060009W WO2014184314A1 WO 2014184314 A1 WO2014184314 A1 WO 2014184314A1 EP 2014060009 W EP2014060009 W EP 2014060009W WO 2014184314 A1 WO2014184314 A1 WO 2014184314A1
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WO
WIPO (PCT)
Prior art keywords
canister
inner space
carbon dioxide
granulated
adsorbing substance
Prior art date
Application number
PCT/EP2014/060009
Other languages
English (en)
Inventor
Jan Nørager RASMUSSEN
Steen Vesborg
Jonas Christiansen
Original Assignee
Carlsberg Breweries A/S
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carlsberg Breweries A/S filed Critical Carlsberg Breweries A/S
Publication of WO2014184314A1 publication Critical patent/WO2014184314A1/fr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00Apparatus or devices for dispensing beverages on draught
    • B67D1/04Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B67D1/0406Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers with means for carbonating the beverage, or for maintaining its carbonation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00Apparatus or devices for dispensing beverages on draught
    • B67D1/0042Details of specific parts of the dispensers
    • B67D1/0078Ingredient cartridges
    • B67D1/008Gas cartridges or bottles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00Apparatus or devices for dispensing beverages on draught
    • B67D1/04Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B67D1/0412Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container
    • B67D1/0418Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container comprising a CO2 cartridge for dispensing and carbonating the beverage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00Apparatus or devices for dispensing beverages on draught
    • B67D1/04Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B67D1/0412Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container
    • B67D1/0443Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container comprising a gas generator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C11/00Use of gas-solvents or gas-sorbents in vessels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/10Adding propellants in solid form to aerosol containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00Apparatus or devices for dispensing beverages on draught
    • B67D2001/0091Component storage means
    • B67D2001/0092Containers for gas, for, e.g. CO2, N2

Definitions

  • the present invention relates to a method of manufacturing a gas supply device, a gas supply device, a beverage dispensing system and a system for manufacturing a gas supply device.
  • Carbonated beverages such as beer and soft drinks, are typically provided under elevated pressure in pressure-proof containers such as cans or kegs. Once the keg or can has been opened, the pressure reduction in the container will cause the carbon dioxide dissolved in the beverage to escape. After some time, such as a few hours, the escape of carbon dioxide (C0 2 ) will cause the beverage to become unsuitable for drinking for the beverage consumer, since it will assume a flat and less flavoured taste.
  • carbonated beverages are typically provided in small containers such as bottles or cans which are suitable for a single serving of beverage and have a volume around 0.25-1.5 litres.
  • the consumer is expected to finish the can or bottle within a few hours and preferably less, since, when the beverage container has been opened, C0 2 will start escaping the beverage. Additionally, oxygen (0 2 ) will enter the beverage. The oxygen entering the beverage container causes the beverage to deteriorate and will decrease the storage time of the beverage inside the opened beverage container. Typically, the quality of the beverage and the intensity of carbonisation will have reached unacceptably low levels within a few hours or at most a few days depending on external conditions after opening the beverage container and the possibility of re- sealing the beverage container.
  • Professional users such as bars and restaurants and similar establishments having a large turnover of carbonated beverages may use a beverage dispensing system intended for multiple servings of beverage instead of individual bottles and cans.
  • Professional beverage dispensing systems typically use large beverage containers such as kegs, which are connected to a carbon dioxide source for carbonating the beverage and for maintaining a pressure inside the beverage container while dispensing the beverage through a tapping device.
  • the level of carbon dioxide in the beverage may be held constant while at the same time oxygen is prevented from entering the container.
  • a beverage inside a beverage container connected to a beverage dispensing system may be kept in suitable drinking condition for weeks, since the beverage dispensing system is effectively compensating for the loss of carbon dioxide from the beverage, substituting the dispensed beverage volume for maintaining an elevated pressure inside the beverage container as well as keeping the drink free from oxygen, which would otherwise deteriorate the flavour of the beverage.
  • Beverage dispensing systems may also include a cooling device for keeping the beverage at a suitable drinking and storage temperature and are typically reusable, i.e. when a beverage keg is empty, the beverage dispensing system may be opened, and a new full beverage keg may be installed.
  • DraughtMasterTM system provides by the applicant company and described in the PCT applications WO2007/019848, WO2007/019849, WO2007/019850, WO2007/019851 and WO2007/019853.
  • the DraughtMasterTM system seals the beverage container from the surrounding oxygen and provides pressurisation and cooling to avoid loss of carbon dioxide and deterioration of the beverage.
  • mini-kegs may also be used in professional beverage dispensing establishments, such as in small professional establishments, establishments lacking access to pressurisation sources and establishments where highly pressurised containers may be unsuitable, such as in airplanes and other means of transportation.
  • a mini-keg is a cheap and single-use beverage dispensing system for providing a larger amount of beverage than allowed in a can while not requiring the consumer to invest in a reusable beverage dispensing system.
  • the mini-keg allows multiple beverage servings without loss of carbonisation or flavour even if some time is allowed to pass between the servings.
  • mini-kegs constitute single use beverage dispensing systems and include a tapping device for dispensing the beverage, and a carbon dioxide canister for keeping the beverage in the mini-keg in a suitable drinking condition over an extended time period such as several days or weeks, even if the mini-keg has been opened.
  • mini-kegs include a carbonisation canister for keeping a pressurised carbon dioxide atmosphere inside the keg and compensate for pressure loss due to beverage dispensing.
  • mini-kegs typically have a volume ranging between the professional kegs and the single-use cans, such as 2-15 litres or 3-10 litres and in particular 5 litres. Furthermore, mini-kegs are known in which no carbon dioxide regulation is included.
  • the above-mentioned technologies have some drawbacks.
  • the high pressure in the canisters of the above-mentioned technologies may constitute a safety hazard due to the risk of explosion, especially in case the canister is heated.
  • the above technologies further include a mechanical pressure-reducing regulator, which may jam or break.
  • the C0 2 canister and the pressure regulator must typically be made of metal to withstand the high pressures.
  • Some mini-kegs may therefore be made entirely out of metal or a combination of metal and plastic. While many plastic materials may be disposed of in an environment-friendly manner by combustion, metal should be recycled in order to be considered an environment-friendly material.
  • the above metal mini-kegs are not suitable for recycling since they differ from normal recyclable metal cans and kegs as they may contain a multitude of different plastic materials, which may not be separable and recyclable or disposed of in an environment-friendly manner. There is thus a risk that such mini-kegs will not be properly recycled.
  • Most beverage containers and kegs are provided in the form of cylindrical drums. The cylindrical shape is preferred since it will allow a stable positioning. Cylindrical bodies further provide a large inner volume in relation to the outer surface, thus allowing less material to be used. It is well known that the optimal dimensions for maximizing the volume while minimizing the outer surface is achieved when the diameter of the container is about the same as the height of the container.
  • the mouth of the beverage container should be kept as small as possible for reducing the leakage from the beverage container.
  • Typical beverage containers therefore have a height roughly corresponding to the diameter and a small mouth opening.
  • Such containers have been produced for years and a change of the dimensions will, in addition to resulting in a less optimal container, require costly modifications to the production line.
  • the above restrictions in relation to the length of the container and the diameter of the mouth constitute technical restrictions of the permissible dimensions of the C0 2 canister.
  • the canister is filled with fine active carbon granulates in order to reduce the pressure inside the canister. Active carbon granulates constitute a non-compressible but substantially flowable material which may be compacted by physical means e.g. a rod or piston.
  • the problem is thereby that the length and the opening of the canister, which must be defined by the beverage container, is mostly not sufficient for allowing a sufficient amount of C0 2 to be stored in the C0 2 canister.
  • canisters including activated carbon with pressurized C0 2 causes the activated carbon to increase in temperature due to an exothermal process in relation to the adsorption of gas in the activated carbon.
  • the activated carbon is not allowed to cool and the temperature of the activated carbon will become very high.
  • a high temperature of the activated carbon may cause desorption of the C0 2 and even thermal destruction of both the canister and the activated carbon.
  • the applicant has found out that quick filling of canisters using a pressure of 5 bar or more of C0 2 will not be possible due to the above-mentioned problem which is particular critical when using plastic canisters which may melt at temperatures exceeding 50°C.
  • the international application WO2011/157786 A1 filed by the present applicant company suggests two alternative modes for filling carbon dioxide into the canister without experiencing any of the above mentioned heating of the activated carbon.
  • the first mode is to use carbon dioxide in liquid phase, since the evaporation cooling energy caused by the phase transition of the carbon dioxide from liquid phase to gaseous phase is about equal to the adsorption heat caused by the adsorption of the gaseous carbon dioxide.
  • the second mode is to fill the canister by using gaseous carbon dioxide at high pressure at two separate instances and allowing the canister and the activated carbon to cool down in-between the fillings.
  • the first mode i.e. the filling of liquid carbon dioxide into the canister has the drawback that due to the phase change characteristics of carbon dioxide, the liquid phase is only present at pressures above 5 standard atmospheres. Liquid carbon dioxide is not well adsorbed by activated carbon, and thus most carbon dioxide will be adsorbed after a transition to gaseous phase. The filling of liquid carbon dioxide into the canister must thus take place at a high pressure, which may contribute to heating the activated carbon.
  • the second mode i.e. to allow the canister and activated carbon to cool down, will make the filling process more time consuming and complicated.
  • the problem of adsorbing a sufficient amount of carbon dioxide within a short period of time has been intensively studied in the prior art.
  • the prior art includes DE 26 52 269 which discloses a canister having a gas adsorbing solid body.
  • US 4,321,069 discloses a multiple vessel cascade gas enrichment adsorber.
  • US 4,539,020 discloses a process for separating carbon monoxide from a feed gas comprising carbon monoxide and carbon dioxide using at least two adsorption columns.
  • FR 2 690 142 discloses an aerosol can including a liquid component and a capsule including a pressurization gas and an adsorbant.
  • WO 99/47451 discloses a device for dispensing fluid having a compartment arranged for receiving a fluid and another compartment arranged for receiving a propellant and fillers for adsorbing or absorbing at least a part of the propellant.
  • US2012/0318830 discloses a gas delivery system including a gas adsorbing material which is wetted with a non-polar release promoting agent.
  • EP 1 686 062 discloses a container including activated carbon and carbon in the solid state of aggregation.
  • EP 2 081 855 and EP 1 706 335 both disclose a method of filling dispensing canisters with pressurized gas, in which the gas is introduced in liquid phase producing a mixture of carbon dioxide snow and gas.
  • EP 1 686 062 discloses a method for filling a container with carbon dioxide in which the carbon dioxide is provided in the form of pellets.
  • Professional beverage filling stations have a throughput of several thousand beverage containers per hour.
  • the filling of the carbon dioxide canisters should be incorporated in the beverage fill line and thus the time required for filling a carbon dioxide canister should not exceed the time needed for filling the beverage containers with beverage. It is therefore a further object of the present invention to reduce the time needed for filling the canisters.
  • a canister the canister defining an inner space and an opening
  • a propellant gas filling system the propellant gas filling system comprising a supply of granulated adsorbing substance and a supply of propellant gas, maintaining the inner space of the canister at a low pressure, the low pressure being below the triple point pressure of the propellant gas,
  • the present gas supply device including the canister is preferably used to provide the driving pressure in a minikeg or other small beverage dispensing system.
  • the gas supply device is primarily intended for use together with a beverage container for pressurizing the beverage container.
  • the beverage container is filled with beverage.
  • the canister is typically positioned inside the beverage container; however, it may also be external.
  • the supply of granulated adsorbing substance should be kept separated from the surrounding atmosphere in order to prevent the granulated adsorbing substance from adsorbing atmospheric contaminants such as oxygen.
  • the granulated adsorbing substance may e.g. be kept under a protective atmosphere.
  • the supply of granulated adsorbing substance further comprises a dosing system, such as a pipe, capable of dosing the first amount of adsorbing substance into the inner space of the canister, i.e. an amount capable of adsorbing the second amount of propellant gas.
  • the second amount of propellant gas should be capable of replacing the entire beverage in the beverage container and retaining a sufficient dispensing pressure within the container.
  • the supply of granulated adsorbing substance may e.g. be kept under an elevated pressure in order to achieve a supply pressure. Alternatively, a mechanical supply is used.
  • the supply of propellant gas may keep the propellant gas at any state of aggregation.
  • Propellant gas in the present context merely indicates the state of aggregation at standard pressure and temperature.
  • the filling system may include a dosing mechanism capable of dosing the solid of propellant gas at a suitable granulated form and in a suitable amount sufficient for adsorbing a sufficient amount of propellant gas to replace all of the beverage in the beverage container an retaining a sufficient dispensing pressure.
  • the propellant gas may be transformed to solid phase by appropriate changes in pressure and/or temperature.
  • the solid propellant gas By introducing both the granulated adsorbing substance and the solid propellant gas simultaneously and ensuring that they mingle or mix, the solid propellant gas will be accommodated in the spaces in-between the granulated adsorbing substance. In this way, the granulated adsorbing substance will be capable of adsorbing the propellant gas very quickly since the surface area exposed between the solid of propellant gas and the granulated adsorbing substance is very large. Further, the time required for introducing the propellant gas and the granulated adsorbing substance will be reduced.
  • the total time for filling the gas generating device is effectively reduced to 50% of the time needed for performing a sequential filling, i.e. filling granulated adsorbing substance and propellant gas at different times.
  • the mingling or mixing of the granulated adsorbing substance and the solid propellant gas may be achieved by positioning the separate dosing mechanisms for the granulated adsorbing substance and the solid propellant gas adjacent each other or even pointing towards each other.
  • the temperature should be below the freezing point and the pressure below the triple point. In this way, the solid propellant gas will sublime into gaseous phase when heated, thereby bypassing the liquid phase. As the solid propellant gas sublimes, it is adsorbed by the granulated adsorbing substance. It is contemplated that the temperature of the solid propellant gas is slowly increasing to room temperature whereas the pressure in the canister increases only slightly as the temperature induced pressure increase is counteracted by the adsorbing of additional solid propellant gas by the granulated adsorbing substance.
  • the seal may be e.g. a pierceable seal or a valve and should be gas tight.
  • the seal may be applied on the opening of the canister alone. This may be advantageous in case the canister is provided as an accessory for later placement in a beverage container. Alternatively, in case the canister is to be used directly in a beverage container, the seal may be applied onto the canister so that it also seals the beverage container.
  • the seal may also be constituted by a weld.
  • fluidly connecting is meant establishing a fluid connection between the inner space of the canister and the interior of the beverage container such that the propellant gas within the inner space may be used for pressurizing the beverage within the container.
  • the supply of propellant gas of the propellant gas filling system comprises a tank including liquefied carbon dioxide stored at a high pressure, the high pressure exceeding 5,1 standard atmospheres.
  • a tank including liquefied carbon dioxide stored at a high pressure, the high pressure exceeding 5,1 standard atmospheres.
  • the carbon dioxide By storing the carbon dioxide in liquid phase, it is stored in a compact and flowable state. It is thereby simple to dose.
  • Liquid carbon dioxide does not exist below 5,1 standard atmospheres.
  • a phase change from liquid to solid may be achieved and thereby at the time of the introduction into the canister, the carbon dioxide is present in solid form.
  • the temperature should be below minus 60°C and in order to achieve a sublimation from solid to gas, the pressure should be below 5.1 standard atmospheres.
  • the liquefied carbon dioxide is kept in the tank at a pressure between 5, 1 standard atmospheres and 500 standard atmospheres, preferably between 40 and 80 standard atmospheres, most preferably between 50 and 70 standard atmospheres.
  • the liquefied carbon dioxide is kept in the tank at a temperature of between -5 °C and 40 °C, preferably between 15 °C and 25 °C .By storing the carbon dioxide at or near room temperature, no additional cooling will be required. In this way, the carbon dioxide may be stored at a high pressure at room temperature, and instantaneously form solid phase when the pressure is reduced
  • the liquefied carbon dioxide is introduced into the inner space via the opening, the liquefied carbon dioxide thereby changing aggregation state from liquid to solid due to the expansion of the carbon dioxide caused by the pressure difference between the tank and the inner space.
  • the liquid carbon dioxide may pass an expansion nozzle at which the pressure is reduced and the liquid carbon dioxide transforms into solid state in the form of a snow or powder.
  • the granulated carbon dioxide adsorbing substance may be supplied such that the solid carbon dioxide occupies the space in-between the granulated carbon dioxide adsorbing substance. The granulated carbon dioxide adsorbing substance and the solid carbon dioxide is thereby efficiently mixed.
  • the liquefied carbon dioxide is introduced into an intermediate space located outside the canister before being introduced into the inner space via the opening, the liquefied carbon dioxide thereby changing aggregation state from liquid to solid due to the expansion of the carbon dioxide caused by the pressure difference between the tank and the intermediate space.
  • the liquid carbon dioxide must not necessarily be injected directly into the inner space.
  • the solid carbon dioxide may form a separate intermediate chamber and the solid carbon dioxide may thereafter be injected into the canister together with the granulated adsorbing substance.
  • the granulated adsorbing substance and the solid carbon dioxide may be mixed in the intermediate space and thereafter injected together into the inner space a common nozzle.
  • the granulated adsorbing substance define a particle size at least ten times larger than the particle size of the carbon dioxide in solid granular form.
  • the solid carbon dioxide may occupy the spaces naturally occurring in-between the granulated adsorbing substance.
  • the principle of the 10 to 1 packing is well known from the previous application WO2011/157786 in which activated carbon was introduced in two different sizes in order to improve the packing of the activated carbon granulates.
  • the solid carbon dioxide has sublimed and been adsorbed by the granulated carbon dioxide adsorbing substance, the granulated adsorbing substance will not collapse but retain its shape.
  • the granulated adsorbing substance is activated carbon.
  • Activated carbon is the preferred adsorbing substance due to its low price and its excellent carbon dioxide adsorbing capabilities.
  • the inner space defines a volume of between 0,1 and 5 liters, preferably between 0,2 and 1 liter, more preferably between 0,3 and 0,7 liters.
  • the size of the canister should preferably be small in order to not occupy too much space inside the beverage container. Any space inside the beverage container which is not used by the canister may be used for accommodating beverage.
  • the canister is made of a polymeric material, preferably plastics.
  • a plastic material is preferred over metal since it is both light and recyclable.
  • the seal comprises a valve for releasing the carbon dioxide from the inner space.
  • the valve may be e.g. an overpressure valve or a spring loaded valve.
  • the valve may also form part of the beverage dispensing valve for dispensing the beverage from the beverage container
  • the method comprises the initial step of flushing the inner space of the canister with propellant gas.
  • the flushing step is often required for removing any gaseous contaminants, such as in the present case oxygen, which may reside inside the inner space of the canister.
  • the granulated adsorption substance is kept below the self destructing and/or self desorbing temperatures of said granulated adsorbing substance.
  • the adsorption enthalpy and the sublimation enthalpy of the propellant gas should be equal, such that the granulated adsorbing substance maintains a substantially constant temperature, i.e. no net heating or cooling.
  • the capability of activated carbon to adsorb carbon dioxide gas decreases with increasing temperature. A high temperature of the granulated adsorbing substance may cause it to desorb a substantial amount of adsorbed gas.
  • Granulated activated carbon which is exposed to a temperature above 800 °C may sinter, which will reduce the adsorption capabilities. If mixed with carbon dioxide over 800 °C, the activated carbon and carbon dioxide may form carbon monoxide, which is highly toxic.
  • a beverage dispensing system manufactured according to the first aspect of the present invention, wherein the inner space defines a pressure between 2,0 and 5,0 standard atmospheres, preferably between 3,0 and 4,0 standard atmospheres.
  • the pressure of the final sealed canister in room temperature should be between 2,0 and 5,0 standard atmospheres in order to allow a safe dispensing pressure, all pressures taken at room temperature e.g. between 0°C and 30°C.
  • a system for manufacturing a gas supply device comprising: a canister, the canister defining an inner space and an opening, the system maintaining the inner space of the canister at a low pressure, the low pressure being below 5,0 standard atmospheres,
  • a propellant gas filling system comprising a supply of granulated adsorbing substance and a supply of propellant gas, the propellant gas filling system being capable of introducing a first amount of granulated adsorbing substance from the supply of granulated adsorbing substance into the inner space via the opening, and simultaneously, introducing a second amount of propellant gas in solid granular form from the supply of propellant gas into the inner space via the opening such that the first amount of granulated solid adsorbing substance and the second amount of propellant gas become mingled within the inner space of the canister, and a seal for being applied over the opening of the canister.
  • the system according to the third aspect of the present invention is preferably used to carry out the method according to the first aspect.
  • an elongated canister defining a partly open first end, a closed second end and a cylindrical wall interconnecting the first end and the second end, the canister defining an inner space
  • the filling system comprising a supply of granulated adsorbing substance
  • the present gas supply device is preferably used together with a beverage container for generating a dispensing pressure capable of dispensing all of the beverage in the beverage container and maintaining the pressure in the beverage container.
  • the granulated adsorbing substance may adsorb a sufficient amount of propellant gas.
  • the beverage in the beverage container is typically a carbonated beverage.
  • the canister which is typically of a plastic material, has an elongated cylindrical shape with one end closed at one end open for being able to access the adsorbed gas.
  • a small canister may accommodate a smaller amount of granulated adsorption substance which may not be sufficient for allowing the beverage to be replaced by the carbon dioxide released by the granulated adsorption substance.
  • the granulated adsorption substance may be compacted by physical means in order to fit more granulated absorption substance into the canister, i.e. increasing the density of the granulated adsorption substance in the canister.
  • any granulated adsorption substance will be low for the reasons that firstly all adsorption substances are porous materials which define cavities in which gases and liquids may adhere, i.e. adsorb, and secondly the granulates will define spaces in-between themselves. Further, the present inventors have found out that the particles constituting the granulated adsorption substance typically are charged or will accumulate a charge when introduced into the canister. As equally charged particles repel each other, the density of the introduced granulated adsorption substance will be lower than for non-charged particles since the space inbetween the particles will be larger. The compression of the first amount of the granulated adsorbing substance by the cone-shaped packing rod will cause the charged particles to approach each other and thereby allow a second amount of the granulated solid adsorbing substance to be introduced.
  • the granulated adsorbing substance is pre-loaded by carbon dioxide.
  • pre-loaded should in the present context be understood that the granulated adsorbing substance first be subjected to vacuum in order to remove any adsorbed gas particles thereafter the granulated adsorbing substance is flushed under pressure by carbon dioxide and thus the granulated adsorbing substance will absorb carbon dioxide before being introduced into the canister.
  • the method further comprises the step of introducing carbon dioxide through the partly open first end at an elevated pressure.
  • the carbon dioxide may be introduced directly into the canister after introducing the granulated adsorbing substance.
  • the elevated pressure ranges between 1 bar and 5 bar above ambient pressure, preferably between 2 bar and 4 bar above ambient pressure, preferably 3 bar above ambient pressure.
  • the elevated pressure should preferably correspond to the dispensing pressure and/or the carbonation pressure of the carbonated beverage.
  • the canister during the introduction of carbon dioxide through the partly open first end, the canister being cooled to dissipate heat generated by adsorption of carbon dioxide by the adsorption substance.
  • the adsorption process will generate a substantial amount of heat which must be dissipated.
  • the granulated solid adsorbing substance is subjected to elevated temperatures, it may sinter and/or self destruct.
  • the amount of carbon dioxide introduced through the opening and/or preloaded is measured.
  • the amount of carbon dioxide adsorbed by the granulated solid adsorbing substance may be estimated by measuring the amount of carbon dioxide introduced during preloading or into the canister. As the same amount of carbon dioxide may be desorbed during dispensing, the amount of beverage which the gas supply device may replace may be derived.
  • the method further comprises the step of vibrating the canister during the filling of the inner space by the first amount of the granulated adsorbing substance and/or the second amount of the granulated adsorbing substance.
  • the canister Prior to the compression by the cone-shaped packing rod, the canister may be vibrated in order to achieve a good distribution of the granulated solid adsorbing substance within the canister. Cavities and gas bubbles may thereby be avoided and a more efficient compression by the cone-shaped packing rod may be achieved.
  • the granulated adsorbing substance is activated carbon. Activated carbon is the preferred adsorbing substance due to its low price and its excellent carbon dioxide adsorbing capabilities.
  • the cone-shaped packing rod compacts the adsorbing substance within the inner space to a density of between 0,6g/cm 3 and 0,8g/cm 3 , ideally 0,7g/cm 3 .
  • the above values of density are achievable by the compression of the granulated solid adsorbing substance by the cone-shaped packing rod.
  • a density of about 0,4g/cm 3 will be achieved by applying no further measures.
  • the density may be increased to 0,5g/cm 3 by vibrating the canister and thereby avoid any cavities or gas bubbles within the canister.
  • the method further comprises the step of applying a seal over the opening of the canister.
  • a seal may be applied over the opening of the canister.
  • the granulated solid absorbing substance defines granulates ranging in size over one order of magnitude. In this way an optimal packing may be achieved since the smaller particles may occupy the space in-between the larger particles.
  • a beverage dispensing system may be produced using the gas supply device of the fourth aspect.
  • the gas supply device is connected to a bag located within the beverage container.
  • the gas supply device may be configured to supply gas to a bag inside the container instead of just letting the propellant gas directly into the container.
  • the bag is flexible and thus the bag will also apply a sufficient dispensing pressure to the beverage.
  • a beverage container including a first amount of beverage and a gas supply device
  • the gas supply device comprising a canister defining a partly open first end, a closed second end and a cylindrical wall interconnecting the first end and the second end, the canister defining an inner space, the inner space being filled by an granulated adsorbing substance having adsorbed a second amount of gas, the second amount of gas being sufficient for replacing the first amount of beverage, the granulated adsorbing substance defining within the inner space a first volume and a second volume, the first volume being larger than the second volume and defining a higher density than the second volume.
  • the beverage container according to the sixth aspect may preferably be manufactured using the method according to the fifth aspect. This will yield a distribution of the granulated adsorption substance within the canister.
  • the first volume which has been compacted by the cone-shaped rod will define a higher density than the second volume which constitutes the granulated adsorption substance which has been introduced to fill up the cavity resulting from the compacting of the first volume and thus the second volume has not been compacted and thus defines a lower density than the first volume.
  • the granulated adsorbing substance in the inner space defining in the first volume a density of between 0,6g/cm 3 and 0,8g/cm 3 , ideally 0,7g/cm 3
  • the granulated adsorbing substance in the inner space defining in the second volume a density of between 0,4g/cm 3 and 0,6g/cm 3 , ideally 0,5g/cm 3
  • the compacted granulated adsorption substance defines a density of about 0,7g/cm 3
  • the non-compacted granulated adsorption substance defines a density of about 0,5g/cm 3
  • FIG. 1 is a perspective view of a beverage dispensing system.
  • FIG. 2 is a series illustrating the manufacturing of the beverage dispensing system.
  • FIG. 3 is a view of an alternative filling mode.
  • FIG. 4 is a phase diagram of carbon dioxide.
  • FIG. 5 is a series describing a high density filling mode of adsorption substance
  • FIG. 1 shows a perspective view of a beverage dispensing system 10 according to the present invention.
  • the beverage dispensing system 10 comprises a beverage container 12 including a beverage 14, preferably constituting a carbonated beverage.
  • the beverage container 12 comprises a dispensing device 16.
  • the dispensing device 16 includes a dispensing valve 18 controlled by a handle 20.
  • the dispensing valve 18 is controlled by a handle in order for a user to be able to selectively dispense the beverage 14 within the beverage container 12.
  • the dispensing device 16 may be covered by a cover 22.
  • the beverage 14 is dispensed via a pipe 24.
  • the beverage container 12 further includes a gas supply device 26.
  • the gas supply device 26 comprises a canister 28 including activated carbon 30.
  • FIG. 2A shows a side view illustrating the flushing of an inner space 32 of the canister 28 of the gas supply device 26.
  • the canister 28 defines an inner space 32 which may be accessed via an opening 34.
  • the inner space 32 is flushed by carbon dioxide by introducing a flushing pipe 36 into the inner space 32 of the canister 28.
  • the flushing pipe 36 is supplied by a carbon dioxide filling system 38.
  • FIG. 2B shows a side view of the filling step of the manufacturing of the gas supply device.
  • the empty canister 28 is located within a filling chamber 40 of the carbon dioxide filling system 38.
  • the filling chamber 40 maintains a carbon dioxide pressure of below 5 standard atmospheres.
  • the inner space 32 of the canister 28 is simultaneously filled with activated carbon 30 and solid carbon dioxide 42.
  • the solid carbon dioxide 42 is provided in the form of snow or fine powder.
  • the activated carbon 30 is supplied via an activated carbon filling pipe 44 which is connected to a supply of activated carbon 46.
  • the supply of activated carbon 46 is kept under a protective carbon dioxide atmosphere.
  • the activated carbon 30 is supplied in granular form.
  • the canister 28 may be shaken in order to allow the granulated activated carbon 30 to flow.
  • the solid carbon dioxide 42 is supplied via a carbon dioxide filling pipe 48 which is connected to a supply of carbon dioxide 50.
  • the supply of carbon dioxide 50 includes carbon dioxide in liquid form 42', preferably stored at room temperature at a high pressure.
  • the supply of carbon dioxide 50 thus typically constitutes a tank.
  • the carbon dioxide filling pipe 48 includes a nozzle 52 at which the pressure is reduced from the supply pressure over 5,1 standard atmospheres to a pressure below 5 standard atmospheres within the filling chamber 40.
  • the pressure of the liquid carbon dioxide 42' is reduced at the nozzle 52, the temperature of the carbon dioxide 42' will fall and the carbon dioxide 42' will solidify into a snow or powder of carbon dioxide 42.
  • the solid carbon dioxide 42 will mix with the activated carbon 30 and occupy the space in-between the granulates of activated carbon 30. This is shown in the lower left close-up.
  • FIG. 2C shows a side view of the filled canister 28.
  • the complete inner space 32 is filled with a mixture of activated carbon 30 and solid carbon dioxide 42.
  • the solid carbon dioxide 42 keeps the activated carbon at a low temperature.
  • the canister 28 is kept within the filling chamber 40.
  • FIG. 2D shows a side view of the filled canister 28.
  • the inner space 32 of the canister 28 has been sealed off by a lid 54 applied onto the opening 34.
  • the solid carbon dioxide 42 is starting to sublimate and form gaseous carbon dioxide.
  • the gaseous carbon dioxide is adsorbed by the activated carbon 30.
  • the adsorption process generates heat, which causes additional solid carbon dioxide to sublimate.
  • the activated carbon 30 has adsorbed the major part thereof without an excessive heating of the activated carbon caused by adsorption heat, since the heat of adsorption approximately corresponds to the heat of sublimation.
  • FIG. 2E shows a side view of the finished canister 28.
  • the canister 32 may be removed from the filling chamber 40 and be immediately introduced into a filled up beverage container.
  • the filling chamber 40 may be omitted in case the filling of the canister is made in a suitable oxygen free environment such as in a beverage filling plant.
  • FIG. 3 shows a side view of a different filling mode using an alternative carbon dioxide filling system 38'.
  • the present filling mode is similar to the filling mode described in connection with FIG. 2B, however, the activated carbon 30 and the solid carbon dioxide 42 are mixed in an intermediate chamber 56 before being led through a common filling pipe 58 into the inner space 32 of the canister 28.
  • FIG. 4 shows a phase diagram illustrating the states of aggregation of carbon dioxide at different temperatures and pressures.
  • the area designated A represents the carbon dioxide in solid phase
  • the area designated B represents the carbon dioxide in liquid phase
  • the area designated C represents the carbon dioxide in gaseous phase. From the diagram can be deduced that liquid carbon dioxide does not exist below 5,1 standard atmospheres (atm). At room temperature, carbon dioxide will be liquid above approximately 60 standard atmospheres. This point is in the phase diagram designated the reference numeral 60 and corresponds to the situation in which the liquid carbon dioxide is stored in a tank in the carbon dioxide supply.
  • the liquid carbon dioxide When the liquid carbon dioxide is released into the inner space of the canister, which is maintained at a pressure below 5 standard atmospheres, the liquid carbon dioxides assumes a low temperature of about -70 °C and instantly solidified. This point in the phase diagram is designated the reference numeral 62.
  • the solid carbon dioxide When the canister has been sealed, the solid carbon dioxide will start subliming onto gaseous carbon dioxide which may be adsorbed by the activated carbon. Slowly, the temperature will approach room temperature, while the pressure increases only slightly. This situation is designated the reference numeral 64.
  • FIG. 5A shows a side view of a carbon dioxide preloading station 100.
  • the carbon dioxide preloading station 100 comprises a carbon dioxide supply line 102 which is controlled by a gas valve 104 leading to a carbon dioxide preloading chamber 106 in which the activated carbon 108 is introduced.
  • the compartment 106 including the activated carbon 108 Prior to introducing carbon dioxide into the carbon dioxide preloading compartment 106 the compartment 106 including the activated carbon 108 is evacuated of gas particles in order to remove any previously adsorbed particles from the activated carbon 108.
  • the amount of activated carbon 108 and the amount of carbon dioxide introduced into the carbon dioxide preloading compartment may be measured in order to derive a relation between amount of activated carbon and amount of preloaded carbon dioxide. In this way the amount of activated carbon required for replacing a certain amount of beverage may be derived.
  • FIG. 5B shows a side view of the canister 110 during carbon dioxide flushing.
  • the canister comprises an opening 112 through which a flushing line 114 extends.
  • the flushing line 114 flushes the canister 110 by carbon dioxide before introduction of the activated carbon in order to remove any gas particles, in particular oxygen, from the interior of the canister.
  • FIG. 5C shows a side view of the canister 110 when being filled by preloaded activated carbon 108.
  • the activated carbon preloading compartment 106 and the canister 110 are interconnected gas tight by an activated carbon filling line 116.
  • the canister is located within a carbon dioxide filling compartment 118.
  • a specific amount of preloaded activated carbon 108 is introduced into the canister 110 via the activated carbon filling line 116 while the canister 110 is being shaken in order to avoid any large cavities within the canister 110.
  • a density of 0.5 g/cm 3 may be achieved by shaking alone.
  • FIG. 5D shows a side view of the canister 110 when the activated carbon is being packed by introducing a cone-shaped packing rod 120 into the canister 110.
  • the cone- shaped packing rod 120 will compact the activated carbon substantially uniformly along the length of the canister 110 achieving a density of the activated carbon of about 0.7 g/cm 3 .
  • FIG. 5E shows a side view of the canister 110 when the cone-shaped packing rod has been removed.
  • a cavity 122 will remain after the compression by the cone-shaped packing rod.
  • This cavity 122 is filled by activated carbon defining a density of 0.4 g/cm 3 which by shaking the canister 110 may be increased to 0.5 g/cm 3 .
  • FIG. 5F shows a side view of the canister 110 when carbon dioxide is being introduced into the carbon dioxide filling compartment 118 via a carbon dioxide filling line 102' controlled by a valve 104'.
  • the amount of carbon dioxide introduced into the carbon dioxide filling compartment 118 may be measured and taking account any preloading of the activated carbon, the amount of beverage which the carbon dioxide adsorbed by the activated carbon may replace can be derived.
  • the canister 110 should be cooled by the provision of a cooling element 124 for dissipating the heat generated by adsorption.
  • FIG. 5G shows a side view of the canister 110 when the open end of the canister is sealed off by applying a cap 126.
  • the present gas supply system may be modified by the skilled person.
  • carbon dioxide together with a carbon dioxide adsorbing substance is introduced into the inner space of the canister. It is evident to the skilled person that also other gases may be used.
  • Dispensing device 106 Carbon dioxide preloading

Abstract

L'invention concerne la fabrication d'un dispositif d'alimentation en gaz (26) pour un récipient de boisson (12) au moyen de la formation d'une cartouche allongée (28), du remplissage partiel de son espace interne par une substance d'adsorption granulée (30), de la compression de cette substance par une tige de tassement conique, de la création d'une cavité dans l'espace interne et du remplissage de cette cavité avec une seconde quantité de substance granulée. L'invention concerne la fabrication d'un système de distribution de boisson (10) qui comprend un dispositif d'alimentation en gaz (26), l'espace interne d'une cartouche (28) étant maintenu en-dessous d'une pression au point triple du gaz propulseur, une substance d'adsorption solide granulée (30) étant introduite dans la cartouche (28) simultanément avec un gaz propulseur (42). La substance granulée (30) et le gaz propulseur (42) sont mélangés à l'intérieur de la cartouche (28). Un joint d'étanchéité (54) est appliqué par-dessus l'ouverture de la cartouche (28), reliée de manière fluidique à un récipient à boisson (12).
PCT/EP2014/060009 2013-05-17 2014-05-15 Procédé de fabrication d'un système de distribution de boisson comprenant une alimentation en gaz WO2014184314A1 (fr)

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EP13168272.6 2013-05-17

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Publication number Priority date Publication date Assignee Title
DE2652269A1 (de) 1975-11-13 1977-05-26 Johnson & Son Inc S C Verfahren zum unterdrucksetzen eines zerstaeuberartigen ausgabebehaelters und vorrichtung zur durchfuehrung des verfahrens
US4321069A (en) 1979-10-26 1982-03-23 Ritter Robert A Multiple vessel cascade gas enrichment system
US4539020A (en) 1983-07-10 1985-09-03 Kawasaki Steel Corporation Methods for obtaining high-purity carbon monoxide
FR2690142A1 (fr) 1992-04-17 1993-10-22 Oreal Récipient pressurisé, en particulier boîtier aérosol, pour la distribution sous pression d'un composant liquide ou pâteux.
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EP1686062A1 (fr) 2005-01-31 2006-08-02 Czewo Full Service Filling Service GmbH Procédé pour remplir un conteneur avec de l'anhydride carbonique (CO2) et conteneur contenant de l'anhydride carbonique (CO2)
EP1706335A1 (fr) 2004-01-23 2006-10-04 Kbig Limited Systemes de distribution de produits
EP1737759A1 (fr) 2004-04-02 2007-01-03 Huber Verpackungen GmbH + Co. KG Dispositif pour faire sortir un liquide de l'enceinte d'un recipient
WO2007019848A2 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Ensemble permettant de distribuer une boisson
WO2007019850A2 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Ensemble de distribution de boissons
WO2007019849A2 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Procede de refroidissement de ligne de distribution
WO2007019853A2 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Ensemble de distribution de boissons
WO2007019851A1 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Procede et ensemble de guidage d'un tuyau de distribution dans un distributeur de boissons
WO2008053216A1 (fr) * 2006-11-02 2008-05-08 Kbig Limited Système de distribution de produits
WO2010016406A1 (fr) * 2008-08-08 2010-02-11 日本炭酸瓦斯株式会社 Récipient pour gaz haute pression
DE102009046960A1 (de) * 2009-11-23 2011-05-26 Robert Bosch Gmbh Verfahren zur Beladung von Speicherbehältern für ein NOx-Reduktionsmittel
WO2011157786A1 (fr) 2010-06-17 2011-12-22 Carlsberg Breweries A/S Procédé d'adsorption de gaz propulseur pour un système de distribution de bière
US20120318830A1 (en) 2009-04-21 2012-12-20 Lim Walter K Pressurized dispencer with controlled release of stored reserve propellant

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652269A1 (de) 1975-11-13 1977-05-26 Johnson & Son Inc S C Verfahren zum unterdrucksetzen eines zerstaeuberartigen ausgabebehaelters und vorrichtung zur durchfuehrung des verfahrens
US4321069A (en) 1979-10-26 1982-03-23 Ritter Robert A Multiple vessel cascade gas enrichment system
US4539020A (en) 1983-07-10 1985-09-03 Kawasaki Steel Corporation Methods for obtaining high-purity carbon monoxide
FR2690142A1 (fr) 1992-04-17 1993-10-22 Oreal Récipient pressurisé, en particulier boîtier aérosol, pour la distribution sous pression d'un composant liquide ou pâteux.
US5858067A (en) * 1996-05-20 1999-01-12 Advanced Technology Materials, Inc. Ex situ degassing and sorbate loading system for manufacture of sorbent-based fluid storage and dispensing apparatus
WO1999047451A1 (fr) 1998-03-16 1999-09-23 Heineken Technical Services B.V. Dispositif de distribution d'un liquide sous pression
EP1170247A1 (fr) 1998-03-16 2002-01-09 Heineken Technical Services B.V. Dispositif de distribution de liquide sous pression
EP1706335A1 (fr) 2004-01-23 2006-10-04 Kbig Limited Systemes de distribution de produits
EP1737759A1 (fr) 2004-04-02 2007-01-03 Huber Verpackungen GmbH + Co. KG Dispositif pour faire sortir un liquide de l'enceinte d'un recipient
EP1686062A1 (fr) 2005-01-31 2006-08-02 Czewo Full Service Filling Service GmbH Procédé pour remplir un conteneur avec de l'anhydride carbonique (CO2) et conteneur contenant de l'anhydride carbonique (CO2)
WO2007019848A2 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Ensemble permettant de distribuer une boisson
WO2007019850A2 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Ensemble de distribution de boissons
WO2007019849A2 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Procede de refroidissement de ligne de distribution
WO2007019853A2 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Ensemble de distribution de boissons
WO2007019851A1 (fr) 2005-08-12 2007-02-22 Carlsberg Breweries A/S Procede et ensemble de guidage d'un tuyau de distribution dans un distributeur de boissons
WO2008053216A1 (fr) * 2006-11-02 2008-05-08 Kbig Limited Système de distribution de produits
EP2081855A1 (fr) 2006-11-02 2009-07-29 Kbig Limited Système de distribution de produits
WO2010016406A1 (fr) * 2008-08-08 2010-02-11 日本炭酸瓦斯株式会社 Récipient pour gaz haute pression
US20120318830A1 (en) 2009-04-21 2012-12-20 Lim Walter K Pressurized dispencer with controlled release of stored reserve propellant
DE102009046960A1 (de) * 2009-11-23 2011-05-26 Robert Bosch Gmbh Verfahren zur Beladung von Speicherbehältern für ein NOx-Reduktionsmittel
WO2011157786A1 (fr) 2010-06-17 2011-12-22 Carlsberg Breweries A/S Procédé d'adsorption de gaz propulseur pour un système de distribution de bière

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