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

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.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1393514
Assignee:
NEWVISTAS CAPITAL, LLC ARPA-E
Patent Number(s):
9,766,011
Application Number:
15/182,494
Contract Number:
AR0000101
Resource Relation:
Patent File Date: 2016 Jun 14
Research Org:
NEWVISTAS CAPITAL, LLC., Provo, UT (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Other works cited in this record:

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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