Title:
METHOD AND APPARATUS FOR LIQUEFYING A GAS RICH IN CARBON DIOXIDE
Document Type and Number:
WIPO Patent Application WO/2022/238212
Kind Code:
A1
Abstract:
A method for liquefying a CO2-rich gas flow containing at least 90mol% of CO2 involves the following steps: compressing (C2, C3) the CO2-rich gas flow, liquefying (L) and separating in order to produce a first liquid flow at a first pressure MP and a first temperature T1. Extracting part of the first liquid flow at the first pressure and the first temperature by way of first product, supercooling part of the first liquid flow down to a temperature below the first temperature by indirect exchange of heat in a heat exchanger, expanding the liquid supercooled down to the second temperature T2 until it reaches a second pressure lower than the first pressure, the second pressure being equal to or greater than the equilibrium pressure of the expanded liquid, and extracting part of the expanded liquid by way of second product and evaporating another part of the liquid in the heat exchanger by exchange of heat with the part of the first flow in order to produce a vaporized liquid.
Inventors:
RODRIGUES GUILLAUME (FR)
MADELEINE LAURETTE (FR)
TRAN MICHAEL (FR)
MADELEINE LAURETTE (FR)
TRAN MICHAEL (FR)
Application Number:
PCT/EP2022/062037
Publication Date:
November 17, 2022
Filing Date:
May 04, 2022
Export Citation:
Assignee:
AIR LIQUIDE (FR)
International Classes:
F25J1/00
Foreign References:
| US20130340472A1 | 2013-12-26 | |||
| US20130118204A1 | 2013-05-16 | |||
| US5974829A | 1999-11-02 |
Other References:
ASPELUND ET AL: "Gas conditioning-The interface between CO"2 capture and transport", 20070616, vol. 1, no. 3, 16 June 2007 (2007-06-16), pages 343 - 354, XP022119495
Attorney, Agent or Firm:
MERCEY, Fiona (FR)
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