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Title: Optimized heat exchange in a CO2 de-sublimation process

Patent ·
OSTI ID:1393514
; ; ;

The present invention is a process for removing carbon dioxide from a compressed gas stream including cooling the compressed gas in a first heat exchanger, introducing the cooled gas into a de-sublimating heat exchanger, thereby producing a first solid carbon dioxide stream and a first carbon dioxide poor gas stream, expanding the carbon dioxide poor gas stream, thereby producing a second solid carbon dioxide stream and a second carbon dioxide poor gas stream, combining the first solid carbon dioxide stream and the second solid carbon dioxide stream, thereby producing a combined solid carbon dioxide stream, and indirectly exchanging heat between the combined solid carbon dioxide stream and the compressed gas in the first heat exchanger.

Research Organization:
NEWVISTAS CAPITAL, LLC., Provo, UT (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000101
Assignee:
NEWVISTAS CAPITAL, LLC
Patent Number(s):
9,766,011
Application Number:
15/182,494
OSTI ID:
1393514
Resource Relation:
Patent File Date: 2016 Jun 14
Country of Publication:
United States
Language:
English

References (10)

Cascading closed loop cycle (CCLC) patent-application January 2004
Purification of carbon dioxide patent-application July 2008
Method and Device for Recovering Carbon Dioxide from Fumes patent-application December 2008
Rankine Cycle For LNG Vaporization/Power Generation Process patent-application May 2010
CO2 Recovery Method Using Cryo-Condensation patent-application December 2011
Organic rankine cycle with flooded expansion and internal regeneration patent-application January 2012
NGL Recovery from Natural Gas Using a Mixed Refrigerant patent-application June 2012
Systems and methods for separating condensable vapors from light gases or liquids by recruperative cryogenic processes patent-application November 2012
Process for Removing Carbon Dioxide From a Gas Stream using Desublimation patent-application January 2013
Low temperature heat exchanger system and method patent-application June 2013

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