System for storing dissolved methane-base gas
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKouetsu Hibino, Nobutaka Honma, Yukio Terashima, Tamio Shinozawa, Toshiharu Okui, Kiyoto Inomata
Life of this patent
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Abstract
A system stores densely dissolved methane-base gas and supplies gas of a predetermined composition. A container (10) stores methane-base gas dissolved in hydrocarbon solvent and supplies it to means for adjusting composition, through which an object of regulated contents is obtained. Preferably, the means for adjusting composition is means for maintaining the tank in a supercritical state, or piping (48) for extracting substances at a predetermined ratio from the gas phase (12) and liquid phase (16) in the container.
Claims49
A gas liquefying and storing system for a methane-base gas, comprising:
- a storage container containing a hydrocarbon solvent for dissolving and storing the methane-base gas, forming liquid phase and vapor phase constituents of a stored material;
- and
- a composition adjusting means for maintaining a predetermined compositional ratio of the constituents in said stored material;
- wherein
- said composition adjusting means extracts simultaneously said liquid phase and vapor phase constituents from the storage container, and mixes and discharges the extracted liquid phase and vapor phase constituents while maintaining the predetermined compositional ratio during the discharge.
A gas liquefying and storing system for a methane-base gas, comprising:
- a storage container containing dimethyl ether for dissolving and storing the methane-base gas, forming liquid phase and vapor phase constituents of a stored material;
- and
- a composition adjusting means for monitoring a predetermined compositional ratio of the constituents in said stored material;
- wherein
- said composition adjusting means extract simultaneously said liquid phase and vapor phase constituents from the storage container, and mixed and discharges the extracted liquid phase and vapor phase constituents while maintaining the predetermined compositional ratio during the discharge.
A gas liquefying and storing device for methane-base gas, comprising:
- a composition information determining means for determining the ratios of the constituents of material stored in a storage container in which said gas is dissolved in a hydrocarbon solvent and stored;
- and
- a sending means for sending the result of the above determination to the supply side from which said gas and said hydrocarbon solvent are supplied to said storage container.
A gas liquefying and storing device for methane-base gas, comprising:
- a withdrawal container for withdrawing the remaining hydrocarbon from a storage container in which said gas is dissolved in a hydrocarbon solvent and stored;
- a determining means for determining the ratios of the constituents of the hydrocarbon in said withdrawal container;
- and
- a supply ratio control means for controlling a ratio at which said gas and said hydrocarbon solvent are supplied to said storage container, based on the result of said determination.
A gas liquefying and storing device for methane-base gas, wherein, at a stage preceding a storage container in which said gas is dissolved in a hydrocarbon solvent and stored, a temporary charging container for exclusive solvent use is installed via a means for controlling the passage between said storage container and said temporary charging container for exclusive solvent use.
A gas liquefying and storing device for methane-base gas, wherein the supply source of said gas and the supply source of a hydrocarbon solvent are connected via respective control means to a temporary storage tank that is in turn connected to a storage container in which said gas is dissolved in said hydrocarbon solvent and stored.
A gas liquefying and storing device for methane-base gas, comprising:
- a storage container in which said gas is dissolved in a hydrocarbon solvent and stored;
- and
- a hydrocarbon solvent-dedicated storage container for storing only said hydrocarbon solvent, connected to said storage container via a control means.
A gas liquefying and storing device for methane-base gas, comprising:
- a vapor-phase outlet for discharging gaseous stored material, provided at the top of a storage container in which said gas is dissolved in a hydrocarbon solvent and stored;
- a vapor-liquid separator for separating liquid from said gaseous stored material;
- and
- a feedback passage for returning the liquid separated by said vapor-liquid separator to said storage container.
Dependencies are inferred from the claim text.