Abstract:
A marine gas storage and transport system formed of small diameter steel pipe, which is coiled and stacked in a specific manner. The system is suitable for use on top of a barge or inside the holds of a ship, when contained within a secondary containment system. Various ways of stacking and coiling coiled pipe are disclosed. Specific materials for making the pipe are also disclosed.
Abstract:
A large, box-like polygonal tank for storing liquefied gas on land or on ground based structures (GBS) and a method of constructing the tank. The tank is comprised of an internal, truss-braced, rigid frame, having a cover on the frame for containing the stored liquid within the tank. The internal, truss-braced frame allows the interior of the tank to be contiguous throughout while compensating for the dynamic loads caused by the “sloshing” of stored liquid which, in turn, is due to the short excitation periods cause by seismic activity or the like.
Abstract:
A system and method for assembling a fuel tank is disclosed. A measuring device is mounted on a carriage on which at least one machine tool (e.g., saw, router) is also mounted. This carriage is operatively interconnected with a computer and may be longitudinally moved between a headstock and tailstock which are longitudinally displaced and on which various subassemblies of the fuel tank may be mounted during the assembly of a given fuel tank. Length measurements are preferably made of each fuel tank subassembly prior to any machining operation being executed thereon, as well as after each such machining operation, by monitoring/knowing the longitudinal position of the carriage via the measuring device. These length measurements may be automatically recorded on an appropriate computer-readable storage medium in relation to the subject fuel tank subassembly and the subject fuel tank. This information may be used to evaluate supplier compliance with engineering specifications and/or performance of the system in assembling fuel tanks.
Abstract:
System for the transportation and storage of a product which comprises a tank including cylindrical wall section and two ends, wherein the cylindrical wall section and two ends define a cylindrical tank periphery, and wherein the tank periphery has an interior and an exterior. The system utilizes a valve box that includes one or more side walls, a bottom wall, and a removable, sealable top cover which can be attached to the one or more side walls to seal the valve box, wherein the valve box side walls are sealably joined to the cylindrical wall. One or more process valves are disposed in the valve box, wherein each valve has a first and a second end, wherein each first end is connected to a pipe which passes through a wall of the valve box for introducing product into the tank or withdrawing product from the tank. A purge valve and pressure measurement means are installed in fluid communication with the valve box. The product in the tank is isolated from the atmosphere surrounding the tank when the valve box is sealed.
Abstract:
An improvement to an LNG carrier having a vaporizer on board said LNG carrier for vaporizing the LNG to a gaseous state is disclosed. The LNG carrier includes a source of heat for said vaporizer; an intermediate fluid circulating between said vaporizer and said source of heat; and one or more pumps for circulating said intermediate fluid between said vaporizer and said source of heat. The improvement includes equipment connections for adding at least one additional source of heat for said vaporizer, pre-installed flow conduits between said vaporizer and said equipment connections, and valves for isolating said pre-installed flow conduits from said vaporizer.
Abstract:
A system for handling liquified natural gas (LNG) wherein (a) the LNG is delivered into a subterranean formation such that the LNG absorbs heat energy from the subterranean formation and is thereby converted to a gas product and (b) the gas is then produced from the subterranean formation. The subterranean formation is preferably a depleted offshore gas formation having an offshore production platform which is modified to receive LNG from marine transport vessels which are unloaded at an offshore receiving station.
Abstract:
Large volumes of energy in the forms of gaseous fuels, such as, liquefied natural gas, compressed natural gas, compressed air, or liquid fuels, such as, propane, butane, are stored within an abandoned railroad, highway or aqueduct tunnel or similar such structure, in one or more pressure vessels or cylinders which have been permanently installed within the previously abandoned tunnel structure. The stored energy may be directly delivered at high rates to meet any “peak” demand requirements, or maybe delivered during times of normal demand based on market economics. The stored energy can also be utilized at the site to directly produce electricity for delivery to the end user.
Abstract:
Methods of passivating a metal surface are described, the methods comprising the steps of i) exposing the metal surface to a silicon-containing passivation material; ii) evacuating the metal surface; iii) exposing the treated surface to a gas composition having a concentration of reactive gas that is greater than an intended reactive gas concentration of gas to be transported by the metal surface; iv) evacuating the metal surface to remove substantially all of the gas composition to enable maintenance of an increased shelf-life, low concentration reactive gas at an intended concentration; and v) exposing the metal surface to the reactive gas at the intended reactive gas concentration. Manufactured products, high stability fluids, and methods of making same are also described.
Abstract:
A natural gas handling system is provided having a new modular design to provide clean and accessible fuel for remote compressed natural gas. The natural gas handling system has a storage unit with a heated exchanger that converts the liquefied natural gas to compressed natural gas having a predetermined pressure of approximately 5000 psig without the use of pumps or compressors. The LNG/CNG storage unit has an outlet for providing warmed natural gas at approximately psig. If desired, refrigeration can be supplied from the −260° F. LNG during the vaporization process. The LNG/CNG storage unit also has a second outlet with a pressure regulator for providing warmed compressed natural gas at approximately 60 psig.
Abstract:
An installation for storing of natural gas or some other fluid comprises a lined underground storage space. Inside the rock wall of the storage space, there is a concrete layer for supporting an inner impermeable lining layer. According to the invention, the concrete layer has a crack distribution control reinforcement layer closer to the impermeable lining layer than to the rock wall in order to divide large cracks in to smaller cracks and to distribute the cracks over a larger area of the impermeable lining layer. Also according to the invention, there is provided between the impermeable lining layer and the concrete layer a non-binding sliding layer to facilitate relative movements between the impermeable lining layer and the concrete layer.