METHOD OF ISOTHERMAL STORAGE AND REGASIFICATION OF LIQUEFIED PETROLEUM GAS Russian patent published in 2017 - IPC F17C9/02 F25B29/00 F17C3/10 

FIELD: oil and gas industry.

SUBSTANCE: method includes isothermal storage of liquefied petroleum gas (LPG) and its subsequent regasification for supplying it at the specified pressure into the consumption network using vapour compression refrigeration unit which operates in heat pump mode. Via the line the original LPG is fed into the insulated tank where it is kept at a constant temperature not exceeding the boiling temperature of the LPG (from -40°C to - 10°C depending on the composition of the mixture). If required LPG is fed into the condenser of the vapour compression refrigeration unit, where the gas regasification process is done due to the heat released during condensation of refrigerant, following which the gas phase is supplied to the consumer through the feed line.

EFFECT: usage of the invention allows to improve energy efficiency and fire and explosion safety of storage and regasification of LPG, to lower metal consumption, to minimize the natural loss of LPG, to provide the necessary performance of the regasification process and constant composition of vaporized gas, to use LPG mixtures with a high content of lighter hydrocarbons.

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