Title: Circulating fluidized bed connected to a desublimating heat exchanger

Abstract

Condensable vapors such as carbon dioxide are separated from light gases in a process stream. The systems and methods employ a circulating fluidized particle bed cooled by an out-bed heat exchanger to desublimate the solid form of condensable vapors from the process stream. Gas and solids may be sorted in a separator, and the solids may then be subcooled in a heat exchanger. The condensable vapors may be condensed on the bed particles or in the heat exchanger while the light gases from the process stream, which are not condensed, form a separated light-gas stream.

Inventors:

Baxter, Larry; Baxter, Andrew; Mansfield, Eric; Sayre, Aaron; Stitt, Kyler; Hoeger, Christopher; Burt, Stephanie; Frankman, David

Issue Date:

2019-11-05

Research Org.:

Hall Labs LLC, Provo, UT (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1600246

Patent Number(s):

10465984

Application Number:

15/412,484

Assignee:

Hall Labs LLC (Provo, UT)

Patent Classifications (CPCs):

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

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

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

B01D2257/504 - Carbon dioxide
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

F25J2205/10 - using combined expansion and separation, e.g. in a vortex tube, "Ranque tube" or a "cyclonic fluid separator", i.e. combination of an isentropic nozzle and a cyclonic separator
F25J2205/20 - using solidification of components
F25J2205/30 - using a washing, e.g. "scrubbing" or bubble column for purification purposes
F25J2270/04 - Internal refrigeration with work-producing gas expansion loop
F25J2270/90 - External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
F25J3/067 - {separation of carbon dioxide

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DOE Contract Number:  

FE0028697

Resource Type:

Patent

Resource Relation:

Patent File Date: 01/23/2017

Country of Publication:

United States

Language:

English