EP2665624A1 - Unité de distribution de carburant mobile pour gaz naturel comprimé, procédé de distribution de gaz naturel à l'aide d'une unité de distribution de carburant mobile pour gaz naturel comprimé - Google Patents

Unité de distribution de carburant mobile pour gaz naturel comprimé, procédé de distribution de gaz naturel à l'aide d'une unité de distribution de carburant mobile pour gaz naturel comprimé

Info

Publication number
EP2665624A1
EP2665624A1 EP12702327.3A EP12702327A EP2665624A1 EP 2665624 A1 EP2665624 A1 EP 2665624A1 EP 12702327 A EP12702327 A EP 12702327A EP 2665624 A1 EP2665624 A1 EP 2665624A1
Authority
EP
European Patent Office
Prior art keywords
natural gas
gas
fuel delivery
mobile fuel
delivery unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12702327.3A
Other languages
German (de)
English (en)
Inventor
Wilhelmina Walthera Cornelia Van Seumeren-Aussems
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2665624A1 publication Critical patent/EP2665624A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/22—Tank vehicles
    • B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/14—Vehicles adapted to transport, to carry or to comprise special loads or objects the object being a workshop for servicing, for maintenance, or for carrying workmen during work

Definitions

  • Mobile fuel delivery unit for compressed natural gas method of distributing natural gas using a mobile fuel delivery unit for compressed natural gas
  • the present invention relates to a mobile fuel delivery unit for compressed natural gas.
  • compressed natural gas is understood to mean: natural gas in gaseous state and with an increased pressure of 100 bar or higher.
  • this form of compressed natural gas is also referred to with the international term 'compressed natural gas' and
  • methane gas forms the main constituent of natural gas.
  • a distribution system for CNG is applied here which is based on supplying liquid natural gas (LNG) using tankers and delivering LNG to filling stations, wherein the filling station is provided with an installation in which LNG is converted to CNG, which is then stored under high pressure.
  • LNG liquid natural gas
  • the invention relates, according to a first aspect thereof, to a mobile fuel delivery unit for compressed natural gas, comprising:
  • feed conduit from the storage tank to the gas delivery system, which feed conduit is provided with an inlet valve
  • gas delivery system comprises at least the following components:
  • the storage tank for LNG is by definition a cryogenic storage tank. It has been found possible to provide such a complete fuel delivery unit, including an LNG storage tank, in mobile manner and suitable for transport on for instance a truck or a truck with trailer.
  • the transport means themselves do not in principle have to undergo major modifications for this purpose.
  • the fuel delivery unit is preferably mounted on a support frame which can be placed directly onto the transport means.
  • the support frame can more preferably be placed in lockable manner on the transport means.
  • Biogas provides the additional advantage that use is made of a more environmentally-friendly and durable variant of methane gas, compared to natural gas.
  • Compressed biogas is often referred to in this respect with the acronym CBG, and liquid biogas with the acronym LBG.
  • the evaporator according to the invention is an
  • expansion chamber which, with heat exchange, allows supplied liquid natural gas to expand and transpose to the gas phase.
  • the heat exchange takes place by heat conduction via the walls of the expansion chamber, whereby heat exchange takes place between the interior of the expansion chamber and the exterior of the expansion chamber.
  • the walls preferably have a high specific surface area on the inner side, for instance in the form of fins or a honeycomb. On the outside the walls are in contact with a surrounding area which can supply heat, for instance ambient air or heated cooling liquid from a combustion engine.
  • the supplied heat supports the
  • the high-pressure pump according to the invention can also be designated a compressor.
  • the mobile fuel delivery unit according to the
  • invention preferably also comprises:
  • a liquid delivery system for liquid natural gas a feed conduit from the storage tank to the liquid delivery system, which feed conduit is provided with an inlet valve,
  • liquid delivery system comprises at least the following components: a low-pressure pump,
  • Both liquid natural gas and gaseous natural gas can thus be delivered using the delivery unit. This provides advantages of efficiency when both forms of natural gas must be delivered in a region or at a single location.
  • the feed conduit to the gas delivery system and the feed conduit to the liquid delivery system are more preferably combined into one feed conduit system, and wherein the inlet valve is embodied as a three-way valve.
  • the unit as a whole thus has a simpler construction.
  • liquid dispensing unit is adapted to dispense liquid natural gas
  • gas dispensing unit is adapted to dispense
  • the gas dispensing unit for instance comprises a flexible hose with an outlet at the outer end which can withstand a pressure of a minimum of 100 bar, particularly of 300 bar or more.
  • the liquid dispensing unit for instance comprises a flexible hose with a
  • dispensing nozzle at the outer end which can withstand a pressure of 20 bar or more.
  • a variant of the mobile fuel delivery unit according to the invention is further provided with a control unit for performing measurements on and for operating the gas delivery system and/or the liquid delivery system.
  • the quality of the CNG or LNG can thus be monitored and
  • control unit of the mobile fuel delivery unit is provided with a telemetry function for transmitting information between the control unit and a remote information-processing station.
  • the telemetry function is for instance based on a transmitter/receiver of a GSM-modem type. It is thus possible at a central information- processing station to track the progress of distribution of LNG/CNG from the storage tank for the purpose of the
  • the high-pressure pump for compressing gaseous natural gas is suitable for compression up to a pressure of at least 100 bar.
  • CNG can thus be delivered under a commonly used high pressure.
  • compressor can preferably compress the natural gas up to a pressure of 200 bar, and more preferably a pressure of 300 bar. Natural gas can thus be stored with the highest
  • the nominal capacity is preferably 25-50 litres/minute.
  • a measuring unit is with special preference placed at the position of one or both dispensing points for the purpose of measuring properties of the dispensed fluid flow.
  • This measuring unit is preferably coupled to the control unit. Such measurements are important for recording the amount of fuel delivered by the fuel delivery unit (for the purpose of the logistic distribution process) and for monitoring the quality of the delivered CNG or LNG, as well as the temperature and the pressure of the delivered fuel.
  • an injector system for an odorant is coupled to the gas dispensing unit.
  • Tetrahydrothiophene is preferably used here as odorant. This is a commonly used odorant which is added to gaseous natural gas to enable immediate detection of an undesirable leakage.
  • the CNG delivered by the system according to the invention can thus be detected in the same manner and thereby complies with the same safety requirements as usual natural gas supplied from a natural gas network.
  • natural gas with a methane content of 95% by volume or higher is more preferably present in the storage tank.
  • the methane content is preferably at least 96% by volume, more preferably at least 97% by volume, most preferably at least 98% by volume.
  • the natural gas can also be replaced here by biogas, or a mixture of both.
  • the compressed natural gas (CNG) delivered by the fuel delivery unit has a high calorific value such that the CNG forms a realistic alternative to the generally used LPG as fuel for heating purposes.
  • the CNG is also referred to as ⁇ igh-calorific natural gas' because it has a 20% higher calorific value than is usual for naturally obtained natural gas.
  • Such an application of natural gas under high pressure for heating purposes has not previously been considered in the field.
  • the high-pressure pump is disposed upstream of the evaporator, or the
  • the evaporator is disposed upstream of the high-pressure pump.
  • the first disposition requires a high-pressure evaporator and a high-pressure pump for liquids of the plunger type.
  • the second disposition requires a low-pressure evaporator, and a high-pressure pump for gases.
  • a high-pressure pump for gas consumes more energy than a high-pressure pump for liquids, and for this reason the disposition of a high-pressure pump with a high-pressure evaporator downstream can be recommended.
  • a better control of the temperature of the gas carried to the gas dispensing unit can be achieved with a low-pressure evaporator and a high-pressure pump for gas arranged
  • the high-pressure pump for liquids preferably produces an output pressure of 100 bar or higher, preferably higher than 300 bar.
  • the nominal capacity is preferably 25-50 litres/minute.
  • the gas delivery unit is preferably suitable for gas dispensing of CNG with a maximum pressure of 300-380 bar, at a maximum dispensing capacity of 25-50
  • the maximum dispensing capacity is preferably 25 litres/minute.
  • the gas dispensing preferably takes place at ambient temperature or the equilibrium temperature inherent to the obtained volume of gas in the evaporator at a given pressure (according to Boyle's Law) . If desired, the temperature during gas dispensing can also lie between these two values.
  • the liquid delivery unit is more preferably suitable for liquid dispensing of LNG with a maximum
  • the maximum dispensing capacity is preferably 200 litres/minute, and the maximum pressure is preferably 20 bar.
  • the liquid dispensing preferably takes place at the equilibrium temperature inherent to the obtained volume of liquid at a given pressure. This temperature can correspond to what is usual for already known systems.
  • the invention relates to a method for distribution of natural gas, wherein compressed gaseous natural gas is delivered making use of a mobile fuel delivery unit according to the invention.
  • a method for distribution of natural gas wherein compressed gaseous natural gas is delivered making use of a mobile fuel delivery unit according to the invention.
  • the invention preferably relates to a method for distribution of natural gas, wherein liquid natural gas is also delivered making use of a mobile fuel delivery unit according to the invention.
  • Figure 1 shows a side view of a truck on which a fuel delivery unit is placed according to an embodiment of the invention
  • Figure 2 shows a side view of a trailer associated with a truck-trailer combination on which a fuel delivery system is placed according to an alternative embodiment of the invention
  • FIG. 3 is a schematic representation of the fuel delivery unit according to an embodiment of the invention.
  • Figure 4 is a schematic representation of the fuel delivery unit according to an alternative embodiment of the invention .
  • Fig. 1 shows a truck 1 provided with the main
  • the components are connected serially to each other via conduits (not shown) . Further details of the relative arrangement of the components are further shown in fig. 3 and 4.
  • the pump system comprises a high-pressure pump for CNG and a low-pressure pump for LNG (not shown) .
  • Dispensing unit 9 comprises both a liquid dispensing unit and a gas dispensing unit.
  • CNG storage 11 comprises
  • Fig. 2 shows a trailer 20 as part of a truck-trailer combination.
  • the trailer is provided with the same
  • Fig. 3 shows a schematic flow diagram of a fuel delivery unit 30 in which the above described components retain the same numbering.
  • Feed conduits 32 are provided with a three-way valve 34 and lead to a high-pressure pump of the plunger type 7A or to a low-pressure liquid pump 7B.
  • LNG can be carried from tank 3 to a gas delivery system (upper route beginning at pump 7A) or a liquid delivery system (lower route beginning at pump 7B) .
  • Natural gas flows through both delivery systems from left to right as indicated with arrows.
  • the gas delivery system comprises the following components, which are connected in series by means of conduits 34: a high-pressure pump 7A, a high-pressure evaporator 5, a gas dispensing unit 9A.
  • Gas dispensing unit 9A comprises: a gas pressure regulator 36, an odour injector system 38, a measuring system 40 for gas dispensing (type: Coriolis CNG 50) and a hose 42 provided with an outlet (not shown) such as a CNG nozzle.
  • diverse components are electronically connected to control unit 50 via connections 45.
  • the connections 46 are signals coming from the LNG tank and relate to the pressure in the tank and the amount of fuel present in the tank.
  • the liquid delivery system comprises the following components: a low-pressure LNG liquid pump 7B, a conduit 60 and a liquid dispensing unit 9B .
  • the liquid dispensing unit 9B comprises a measuring system 62 for gas dispensing (type: Coriolis CMF 100) and a hose 64 provided with an outlet (not shown) such as a dispensing nozzle.
  • Fig. 4 shows a schematic flow diagram of a fuel
  • the components of the fuel delivery unit according to the invention preferably meet the following specifications:
  • Storage tank for LNG cryogenic pressure container with a volume of 13, 000 litres and an internal pressure of up to 12.6 bar .
  • liquid pump for the liquid delivery system (for LNG) is placed at a position about a metre lower than the suction height in the storage tank. Sufficient hydrostatic overpressure (about 0.1 bar overpressure) is thus ensured.
  • the invention preferably comprises a hydraulic drive with a power of 40 kW per pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

La présente invention se rapporte à une unité de distribution de carburant mobile pour gaz naturel comprimé, comprenant : une cuve de stockage pour gaz naturel liquide, un système de distribution de gaz pour gaz naturel gazeux comprimé, un conduit d'acheminement de la cuve de stockage au système de distribution de gaz, ledit conduit d'acheminement étant doté d'un clapet d'entrée. Le système de distribution de gaz comprend au moins les composants suivants : un évaporateur, une pompe haute-pression, une unité de distribution de gaz en aval de l'évaporateur et une pompe haute-pression, les composants étant reliés en série les uns aux autres par des conduits, et l'ensemble de la cuve de stockage et du système de distribution de gaz formant un tout intégré, cet ensemble étant approprié au transport.
EP12702327.3A 2011-01-19 2012-01-18 Unité de distribution de carburant mobile pour gaz naturel comprimé, procédé de distribution de gaz naturel à l'aide d'une unité de distribution de carburant mobile pour gaz naturel comprimé Withdrawn EP2665624A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2006033A NL2006033C2 (nl) 2011-01-19 2011-01-19 Mobiele brandstofafleveringseenheid voor samengeperst aardgas, werkwijze van distributie van aardgas onder gebruikmaking van een mobiele brandstofafleveringseenheid voor samengeperst aardgas.
PCT/NL2012/050029 WO2012099469A1 (fr) 2011-01-19 2012-01-18 Unité de distribution de carburant mobile pour gaz naturel comprimé, procédé de distribution de gaz naturel à l'aide d'une unité de distribution de carburant mobile pour gaz naturel comprimé

Publications (1)

Publication Number Publication Date
EP2665624A1 true EP2665624A1 (fr) 2013-11-27

Family

ID=44487014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12702327.3A Withdrawn EP2665624A1 (fr) 2011-01-19 2012-01-18 Unité de distribution de carburant mobile pour gaz naturel comprimé, procédé de distribution de gaz naturel à l'aide d'une unité de distribution de carburant mobile pour gaz naturel comprimé

Country Status (3)

Country Link
EP (1) EP2665624A1 (fr)
NL (1) NL2006033C2 (fr)
WO (1) WO2012099469A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8807599B2 (en) 2012-10-01 2014-08-19 William Lamont Brown Semi-tractor trailer for distribution of natural gas and system and method for use of same
CN112539092B (zh) * 2020-11-30 2022-05-24 攀钢集团攀枝花钢铁研究院有限公司 基于有机朗肯循环的cng辅助生产装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354571A (en) * 1981-02-04 1982-10-19 Moorwats Safety Systems Limited Protective system for use in transfer of hazardous substances
DE3629721A1 (de) * 1985-09-03 1987-04-23 Hans Dittus Fahrzeug fuer den strassentransport von fluessiggas
US5762119A (en) * 1996-11-29 1998-06-09 Golden Spread Energy, Inc. Cryogenic gas transportation and delivery system
US6745801B1 (en) * 2003-03-25 2004-06-08 Air Products And Chemicals, Inc. Mobile hydrogen generation and supply system
ES2245863B1 (es) * 2003-11-26 2006-11-01 Ros Roca Indox Equipos E Ingenieria, S.L. Estacion movil de suministro de gnl/gnc.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012099469A1 *

Also Published As

Publication number Publication date
WO2012099469A1 (fr) 2012-07-26
NL2006033C2 (nl) 2012-07-23

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