(19)
(11) EP 2 799 797 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.11.2015 Bulletin 2015/46

(43) Date of publication A2:
05.11.2014 Bulletin 2014/45

(21) Application number: 14166079.5

(22) Date of filing: 25.04.2014
(51) International Patent Classification (IPC): 
F25J 1/02(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 02.05.2013 NL 2010751

(71) Applicant: Ballast Nedam International Product Management B.V.
4143 HM Leerdam (NL)

(72) Inventors:
  • Remie, Peter
    5443 PD Haps (NL)
  • de Pater, Jeroen
    4698 JC Oud-Vossemeer (NL)

(74) Representative: Haan, Raimond 
Arnold & Siedsma Bezuidenhoutseweg 57
2594 AC The Hague
2594 AC The Hague (NL)

   


(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.







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