Optimized heat exchange in a CO2 de-sublimation process

Baxter, Larry; Terrien, Paul; Tessier, Pascal; Hoeger, Christopher

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

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Abstract

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:: Baxter, Larry; Terrien, Paul; Tessier, Pascal; Hoeger, Christopher

Issue Date:: 2017-09-19

Research Org.:: NEWVISTAS CAPITAL, LLC., Provo, UT (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1393514

Patent Number(s):: 9766011

Application Number:: 15/182,494

Assignee:: NEWVISTAS CAPITAL, LLC

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25J - LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS {OR LIQUEFIED GASEOUS} MIXTURES BY PRESSURE AND COLD TREATMENT {OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

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F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25J - LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS {OR LIQUEFIED GASEOUS} MIXTURES BY PRESSURE AND COLD TREATMENT {OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
F25J2240/02 - Expansion of a process fluid in a work-extracting turbine
F25J3/067 - {separation of carbon dioxide

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2258/0283 - Flue gases
B01D53/002 - {by condensation}

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25J - LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS {OR LIQUEFIED GASEOUS} MIXTURES BY PRESSURE AND COLD TREATMENT {OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
F25J2220/82 - Separating low boiling, i.e. more volatile components, e.g. He, H2, CO, Air gases, CH4
F25J2270/90 - External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
F25J2270/12 - External refrigeration with liquid vaporising loop

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2259/65 - Employing advanced heat integration, e.g. Pinch technology
B01D2257/504 - Carbon dioxide

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25J - LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS {OR LIQUEFIED GASEOUS} MIXTURES BY PRESSURE AND COLD TREATMENT {OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
F25J2210/70 - Flue or combustion exhaust gas
F25J2205/20 - using solidification of components
F25J2290/12 - Particular process parameters like pressure, temperature, ratios
F25J2280/40 - Control of freezing of components

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DOE Contract Number:: AR0000101

Resource Type:: Patent

Resource Relation:: Patent File Date: 2016 Jun 14

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Baxter, Larry, Terrien, Paul, Tessier, Pascal, and Hoeger, Christopher. Optimized heat exchange in a CO2 de-sublimation process.  United States: N. p., 2017. 
        Web.

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                    Baxter, Larry, Terrien, Paul, Tessier, Pascal, & Hoeger, Christopher. Optimized heat exchange in a CO2 de-sublimation process.  United States.

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                    Baxter, Larry, Terrien, Paul, Tessier, Pascal, and Hoeger, Christopher. Tue .  
        "Optimized heat exchange in a CO2 de-sublimation process".  United States.  https://www.osti.gov/servlets/purl/1393514.

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@article{osti_1393514,

  title        = {Optimized heat exchange in a CO2 de-sublimation process},

  author       = {Baxter, Larry and Terrien, Paul and Tessier, Pascal and Hoeger, Christopher},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2017},

  month        = {9}

}

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