Abstract:
The present invention is referred to a compressed natural gas (CNG) sub-cooling system for CNG-filling stations, comprising a CNG inlet pipeline coming from the CNG compressor, a set of coils connected to an expansion heat exchanger capable of creating a Joule-Thomson cooling effect on the gas, both coils are immersed in a heat exchange facilitator solution and are also connected to outlet valves which in turn are connected to feeding hoses of a charging station.
Abstract:
A method to increase gas mass flow loading rates to a gas storage cavern includes using liquid natural gas (LNG) to cool natural gas in a natural gas flow line upstream of a compressor used to compress gas for storage in to a gas storage cavern.
Abstract:
A coupling unit device for unloading of a ship, where the coupling unit comprises a hull and is arranged to be connected to the ship by means of a connecting element wherein the coupling unit is provided with an evaporator for liquefied natural gas (LNG) and the required pipe elements for transporting liquefied natural gas from the ship to the evaporator, as well as the required pipe elements for transporting the evaporated gas from the evaporator to a pipe for onward transport. The coupling unit is free-floating and is arranged to maneuver itself to the ship during the connection and disconnection from the ship by means of its own propulsion machinery.
Abstract:
A method for storing a gas. In some embodiments, the method includes positioning a gas storage system under water, the gas storage system having a gas inlet and injecting gas through the gas inlet into the gas storage system, wherein the gas is compressed. The method may further include venting the compressed gas through the at least one gas port to a storage facility.
Abstract:
The new liquefied natural gas (LNG) vaporizer uses seawater as a heat source for vaporizing in a fish friendly manner. The vaporizer provides environmental benefits.Multiple seawater heat source plate heat transfer surface units provide heat for vaporizing propane. Propane provides the heat source for LNG vaporization in a propane/LNG exchanger.
Abstract:
A coupling unit device for unloading of a ship, where the coupling unit comprises a hull and is arranged to be connected to the ship by means of a connecting element wherein the coupling unit is provided with an evaporator for liquefied natural gas (LNG) and the required pipe elements for transporting liquefied natural gas from the ship to the evaporator, as well as the required pipe elements for transporting the evaporated gas from the evaporator to a pipe for onward transport. The coupling unit is free-floating and is arranged to manoeuver itself to the ship during the connection and disconnection from the ship by means of its own propulsion machinery.
Abstract:
In the past, “compensated” salt caverns have operated with a compensating liquid, such as brine to displace a stored liquid, such as crude oil, when the stored liquid is needed on the surface. Virtually all of the stored liquid in a compensated salt cavern can be expelled from the salt cavern when it is filled with the compensating liquid. In the past, “uncompensated” salt caverns have been used to store gases, such as natural gas. Uncompensated caverns operate without any compensating liquid; instead they rely on pressure. Some of the stored gas (cushion gas) must always be left in an uncompensated salt cavern. This invention breaks with convention and uses a compensating liquid in a salt cavern to store gases which is a technique believed to be previously unknown. “Cushion gas” is not required because the compensating liquid displaces virtually all of the gas in the salt cavern.
Abstract:
A device for evaporation of liquefied natural gas (LNG) on board a vessel. The device includes a pipeline through which LNG flows. The outside of the pipeline may be brought in contact with a heating medium, for example seawater. The pipeline is immersed in the sea and is connected to the vessel. The pipeline is enclosed by a shell through which seawater is pumped by a pump, which is operated by a motor on board the vessel.
Abstract:
Systems and methods for dockside regasification of liquefied natural gas (LNG) are described herein. The methods include providing LNG from a LNG carrier to a regasification vessel. The LNG may be regasified on the regasification vessel. The regasified natural gas may be discharged with a high pressure arm to a dock and delivered onshore. The regasification vessel may be moored to the dock. The LNG carrier may be moored to the regasification vessel or the dock.