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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
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