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(11) | EP 2 799 797 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Method and system for at least partially liquefying methane containing gas |
(57) The invention relates to a method for at least partially converting methane-containing
gas to a liquid state, comprising the steps of: - compressing in a compressor methane-containing gas which is supplied from a gas source; - feeding the compressed methane-containing gas from the compressor to a cooling unit, the gas then being cooled such that the methane-containing gas is brought at least partially into a liquid state and a methane-containing mixture is created; - feeding from the cooling unit to a heat exchanger the cooled methane-containing mixture which is then further cooled in the heat exchanger such that the methane-containing gas remaining in the methane-containing mixture is converted to a liquid state; - releasing pressure from the methane-containing mixture, thereby creating a fraction of liquid and a fraction of flash-gas; and - feeding the fraction of liquid to a storage vessel. The invention further relates to a system herefor. |