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Title: Method of immobilizing carbon dioxide from gas streams

Abstract

This invention is a method for rapidly and continuously immobilizing carbon dioxide contained in various industrial off-gas streams, the carbon dioxide being immobilized as dry, stable, and substantially water-insoluble particulates. Briefly, the method comprises passing the gas stream through a fixed or fluidized bed of hydrated barium hydroxide to remove and immobilize the carbon dioxide by converting the bed to barium carbonate. The method has several important advantages: it can be conducted effectively at ambient temperature; it provides a very rapid reaction rate over a wide range of carbon dioxide concentrations; it provides high decontamination factors; and it has a high capacity for carbon dioxide. The invention is especially well suited for the removal of radioactive carbon dioxide from off-gases generated by nuclear-fuel reprocessing facilities and nuclear power plants.

Inventors:
 [1];  [2]
  1. Knoxville, TN
  2. Oliver Springs, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863394
Patent Number(s):
4162298
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; immobilizing; carbon; dioxide; gas; streams; rapidly; continuously; contained; various; industrial; off-gas; immobilized; dry; stable; substantially; water-insoluble; particulates; briefly; comprises; passing; stream; fixed; fluidized; bed; hydrated; barium; hydroxide; remove; immobilize; converting; carbonate; advantages; conducted; effectively; ambient; temperature; provides; rapid; reaction; rate; wide; range; concentrations; decontamination; factors; capacity; especially; suited; removal; radioactive; off-gases; generated; nuclear-fuel; reprocessing; facilities; nuclear; power; plants; barium hydroxide; gases generated; decontamination factor; power plants; reaction rate; nuclear power; method comprises; carbon dioxide; fluidized bed; gas stream; ambient temperature; gas streams; wide range; power plant; off-gas stream; fuel reprocessing; method comprise; substantially water-insoluble; active carbon; comprises passing; immobilizing carbon; oxide concentration; /588/376/423/

Citation Formats

Holladay, David W, and Haag, Gary L. Method of immobilizing carbon dioxide from gas streams. United States: N. p., 1979. Web.
Holladay, David W, & Haag, Gary L. Method of immobilizing carbon dioxide from gas streams. United States.
Holladay, David W, and Haag, Gary L. Mon . "Method of immobilizing carbon dioxide from gas streams". United States. https://www.osti.gov/servlets/purl/863394.
@article{osti_863394,
title = {Method of immobilizing carbon dioxide from gas streams},
author = {Holladay, David W and Haag, Gary L},
abstractNote = {This invention is a method for rapidly and continuously immobilizing carbon dioxide contained in various industrial off-gas streams, the carbon dioxide being immobilized as dry, stable, and substantially water-insoluble particulates. Briefly, the method comprises passing the gas stream through a fixed or fluidized bed of hydrated barium hydroxide to remove and immobilize the carbon dioxide by converting the bed to barium carbonate. The method has several important advantages: it can be conducted effectively at ambient temperature; it provides a very rapid reaction rate over a wide range of carbon dioxide concentrations; it provides high decontamination factors; and it has a high capacity for carbon dioxide. The invention is especially well suited for the removal of radioactive carbon dioxide from off-gases generated by nuclear-fuel reprocessing facilities and nuclear power plants.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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