Abstract:
A liquefied natural gas (LNG) re-gasification unit wherein a buoy can be floated in the water for engaging a floating vessel for transport of LNG and a storage vessel can have a deep water gas storage system for storing a compressed gas. A inflexible thin single walled vessel can be for storing compressed gas under water in deep water, wherein the storage vessel is pressure equalized by water surrounding the inflexible thin single walled vessel. A compressed gas intake can be for admitting and discharging compressed gas to and from the inflexible thin single walled vessel. A water port can be for admitting and discharging water to the inflexible thin walled storage vessel and a valve disposed at the compressed gas intake to the inflexible thin single walled vessel for controlling compressed gas admission and discharge to the vessel.
Abstract:
A storage plant for liquefied gas, in particular Liquefied Natural Gas (LNG), including at least one tank (1 ) with sidewalls (2) and bottom (3)/roof (7) for storage of the liquid and means such as pipes and pumps for circulation and/or filling and emptying of the tank. The storage tank (1 ) is provided in a cavern (4) in the ground, preferably in solid rock (6) below the ground water level (5), whereby an inert gas, preferably N2, is provided in the cavern (4) surrounding the tank and with a controllable pressure preferably kept slightly above the vapour pressure of the liquefied gas in the tank. The roof (7) may be made of a vertically, depending on the filling height of the LNG within the tank, movable closure (7). The closure (7) may in turn be made of one or more floating elements (8) forming a flexible floating "blanket", floating on the liquid in the tank, and provided with a seal (9) between the blanket and tank walls (2).
Abstract:
An electrochemically active hydrogen diffusion barrier (2), which comprises an anode layer (6'), a cathode layer (6''), and an intermediate electrolyte layer (8), which is conductive to protons and substantially impermeable to hydrogen. A catalytic metal present in or adjacent to the anode layer (6') catalyzes an electrochemical reaction that converts any hydrogen that diffuses through the electrolyte layer (8) to protons and electrons. The protons and electrons are transported to the cathode layer (6'') and reacted to form hydrogen. The hydrogen diffusion barrier (2) is applied to a polymeric substrate (12) used in a storage tank to store hydrogen under high pressure. A storage tank equipped with the electrochemically active hydrogen diffusion barrier (2), a method of fabricating the storage tank, and a method of preventing hydrogen from diffusing out of a storage tank are also disclosed.
Abstract:
A liquid storage tank comprising an outer container wherein the outer container is rigid and has at least one inner container disposed within the outer container. The al least one inner container contains at least one stored liquid which may be refilled from a surface vessel or host facility, The at least one inner container is flexible and pressure balanced while the volume of the outer container remains fixed, and the volume of the at least one inner containers is variable. Disposed on the outer container is a balance assembly containing an isolation valve, a check valve, and a flexible bladder. The balance assembly allows for the hydrostatic pressure to be maintained during chemical dosing and tank raising operations.
Abstract:
The invention relates to a tank for a cryogenic liquid gas, in particular for LNG; that is, for liquid natural gas or liquid methane. The invention further relates to an aircraft having such a tank and to a method for producing such a tank. A tank is produced, which comprises an outer, dimensionally stable structure and a pressure-resistant, cold-resistant film which is able to suitably capture an overpressure resulting from boil-off gas in the tank. The suitably flexible film is coiled so that a hose-shaped chamber or a hose-like sleeve is thus formed. With the aid of the film, a sufficiently pressure-resistant, cold-resistant, light tank for storing cryogenic liquid gas can be provided according to the invention, which can also be subsequently installed in an aircraft primarily due to the flexibility of the film.
Abstract:
Die Erfindung betrifft einen Tank für ein kryogenes Flüssiggas und zwar insbesondere für LNG, also für flüssiges Erdgas bzw. flüssiges Methan. Die Erfindung betrifft ferner ein Flugzeug mit einem solchen Tank sowie ein Verfahren für das Herstellen eines derartigen Tanks. Es wird ein Tank hergestellt, der eine äußere, formstabile Struktur und eine druckfeste, kälteresistente Folie umfasst, die einen im Tank aufgrund von Boil-Off Gas entstehenden Überdruck geeignet aufzufangen vermag. Die geeignet flexible Folie ist bzw. wird so gewickelt, dass dadurch ein schlauchartiger Raum bzw. eine schlauchartige Hülle gebildet wird. Es kann mit Hilfe der Folie ein hinreichend druckfester, kälteresistenter, leichter Tank für die Lagerung von kryogenem Flüssiggas bereitgestellt werden, der vor allem aufgrund der Flexibilität der Folie auch nachträglich in ein Flugzeug eingebaut werden kann.
Abstract:
A method for deploying a gas storage vessel below the surface of the water comprises coupling an upper end of the gas storage vessel to a deployment apparatus positioned at the surface of the water. The gas storage vessel has a total dry weight and a lower end opposite the upper end. The gas storage vessel also includes a storage tank defining an inner region inside the tank and an exterior region outside the tank. In addition, the method comprises lowering the gas storage vessel below the surface of the water with the deployment apparatus. Further, the method comprises pumping a buoyancy control gas into the inner region of the tank. The buoyancy control gas in the inner region of the tank generates a buoyancy force acting on the gas storage vessel.
Abstract:
Réservoir cryogénique destiné à contenir un fluide cryogénique, en particulier réservoir de lanceur spatial destiné à contenir un ergol cryogénique, comprenant une paroi (1 ) délimitant un volume de stockage pour le fluide cryogénique, caractérisé en ce qu'il comporte au moins une cloison (2) située dans le volume de stockage, ladite cloison (2) délimitant des volumes supérieur (VS) et inférieur (Vl) pour le fluide dans le réservoir (1 ) communiquant via au moins une ouverture (3) formée dans la cloison (2), pour d'une part permettre l'écoulement du liquide par gravité depuis le volume supérieur (VS) vers le volume inférieur (Vl) et, d'autre part empêcher la remontée du fluide depuis le volume inférieur (Vl) vers volume supérieur (VS) sous l'action de forces d'accélération.