SEPARATION OF A GAS MIXTURE - BP ALTERNATIVE ENERGY INTERNAT LTD

Title:

SEPARATION OF A GAS MIXTURE

Document Type and Number:

WIPO Patent Application WO/2012/010819

Kind Code:

A3

Abstract:

A method is described for use in the separation of carbon dioxide from a gas mixture comprising carbon dioxide. The method includes the steps of: (i) compressing and cooling the gas mixture using a compressor to form a two-phase mixture including liquid carbon dioxide (ii) separating a liquid carbon dioxide stream from the two-phase mixture; and (iii) recirculating at least a part of the liquid carbon dioxide stream and introducing the recirculated liquid stream into a process stream By recirculating separated liquid C02 into an upstream process stream, cooling of the process stream can be obtained. By using the liquid stream, additional cooling is possible as cooling is effected by the evaporation of the liquid C02. Thus the recirculated liquid can be used to reduce the temperature of the process stream.

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Inventors:

FORSYTH JONATHAN ALEC (GB)
MORI YASUSHI (JP)
NAGAO HIDEKI (JP)

Application Number:

PCT/GB2011/001066

Publication Date:

October 23, 2014

Filing Date:

July 15, 2011

Export Citation:

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Assignee:

BP ALTERNATIVE ENERGY INTERNAT LTD (GB)
FORSYTH JONATHAN ALEC (GB)
MORI YASUSHI (JP)
NAGAO HIDEKI (JP)

International Classes:

F25J3/06; F04D27/02; F04D29/58

Foreign References:

FR2877939A1	2006-05-19
EP2196251A1	2010-06-16
DE3403647A1	1984-09-20
US6438994B1	2002-08-27
EP1016839A2	2000-07-05

Other References: