摘要:
A method and apparatus for safely, conveniently, and inexpensively liberating gas from gas hydrates includes the use of a device, provided adjacent to or in the bulk gas hydrates, for exposing the gas hydrates to heat from a gas or liquid (preferably steam). The gas hydrates can be directly exposed to the gas or liquid or indirectly exposed through a thermally conductive coil or channel. The heat from the gas or liquid dissociates the gas hydrates into the corresponding gas component and water component. After liberation, the gas component can be collected for further storage, transport, or use. The apparatus further includes a mechanism for moving at least a portion of the gas or liquid through the device for exposing the gas hydrates to heat. The device for exposing the gas hydrates to heat also can be movable, so it can be maintained in close proximity to or in contact with the gas hydrates for continued efficient gasification of the hydrates.
摘要:
An apparatus for producing gas hydrates includes a reactor vessel having a fluidized or expanded bed reaction zone. The reactor vessel has an upper portion and a lower portion, wherein a cross-sectional area of the upper portion is larger than a cross-sectional area of the lower portion. Water is introduced into the reactor vessel, and hydrate-forming gas is introduced, under an elevated pressure, into the lower portion of the reactor vessel. Preferably, the water and gas flow in a countercurrent manner through the reactor and into the fluidized or expanded bed reaction zone. The apparatus can include a mechanism for withdrawing unreacted hydrate-forming gas from the upper portion of the reactor vessel and recycling it back into the fluidized or expanded reaction bed. A defrosting device can be included with the reactor so that at least a portion of at least one wall of the reactor vessel can be defrosted. The invention further relates to methods for using a fluidized or expanded bed reactor to produce gas hydrates.
摘要:
Disclosed is a container for storing, transporting, and dissociating hydrate pellets, the container comprising: a first container (100) made up of a plurality of frames; a second container (200) which is rotatably installed inside the first container (100), stores hydrate pellets therein, and has an internal surface to which a heat insulating member is attached; and a refrigerating machine (300) which is installed inside the first container (100) and refrigerates the second container (200), wherein the second container (200) is equipped with a heating wire (210), which is heated to dissociate the hydrate pellets by being supplied with power, or with a hot water tube (220), through which hot water flows to dissociate the hydrate pellets, on the internal surface thereof.
摘要:
A flow rate regulation filter provided in a discharge flow path of a fuel container for a fuel cell. The fuel container receives liquid contents of a liquid fuel for a fuel cell such that the contents can be discharged as a liquid or a gas, and the flow rate regulation filter is installed so as to regulate the amount of discharge of the liquid contents. The flow rate regulation filter is constituted of an elastic body having continuous bubbles and of a holder constructed from a formed body fusion-bonded to the elastic body and fixing the elastic body so that the elastic body closes the discharge flow path, and the elastic body and the holder are formed of a thermoplastic resin not corroded by the liquid contents. The discharge flow rate of the contents in the fuel container for a fuel cell can be regulated without requiring a major construction such as a liquid amount regulation mechanism.
摘要:
An offshore hydrocarbon production system in which gases are economically stored for transport. After the produced hydrocarbons are separated into liquid (crude oil) and gases, the gases are separated into heavy and light gases. The heavy gases, which consist primarily of propane and butane (and possibly pentane and hexane), are stored as LPG (liquid petroleum gas) in a refrigerated LPG tank. The light gases (methane and other light gases) are hydrated and the ice crystals are stored in a refrigerated hydrate tank.
摘要:
The present disclosure relates to a natural gas hydrate tank container loading system for transporting natural gas hydrate, and the present disclosure provides a natural gas hydrate tank container loading system, enabling self-powered power generation and boil-off (BOG) gas treatment, includes: a refrigerator for inhibiting the generation of boil-off gas which naturally generates in a natural gas hydrate tank container during transportation; and a solar cell, a battery, and a generator, which operates by means of the boil-off gas, for supplying electric power to the refrigerator, thereby ensuring a generation capacity sufficient to operate the refrigerator by means of the solar cell, the generator, and the battery, and thus always maintaining a stable phase equilibrium (self-preservation) in the natural gas hydrate tank container even during long-distance transportation and solving problems of fire, environmental pollution, or the like which occur when the boil-off gas (BOG) is discharged to the outside.
摘要:
A system for loading and storing CNG onboard of a barge and for unloading it therefrom comprises CNG loading facilities for loading CNG on board of the barge, CNG storage facilities for storing the loaded CNG on board of the barge at nominal storage pressure and temperature, and CNG unloading facilities for unloading CNG to a delivery point. The delivery point requires the unloaded CNG to be at delivery pressure and temperature generally different from the storage pressure and temperature. Thus, the CNG unloading facilities comprise a CNG heater for heating the to-be-unloaded CNG prior to unloading, and a lamination valve for allowing the to- be-unloaded CNG to expand from its storage pressure to the delivery pressure. A compressor may also be provided to compress CNG that would not otherwise be spontaneously delivered.