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Removing carbon dioxide from the air

  • US 4,047,894 A
  • Filed: 05/17/1974
  • Issued: 09/13/1977
  • Est. Priority Date: 05/22/1973
  • Status: Expired due to Term
First Claim
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1. Apparatus for removing carbon dioxide from air comprising:

  • a. a housing opened on two opposing sides, said opposing sides forming an inlet and outlet for the air from which carbon dioxide is to be removed; and

    b. a plurality of corrugated porous sintered plates of polyvinyl chloride impregnated with a carbon dioxide absorbing liquid supported within said housing in parallel spaced relationship to each other with the peaks and valleys of the corrugations also in parallel relationship to define a plurality of spaces, one between each two adjacent plates which spaces are open between said inlet and outlet, the corrugations extending transverse to the direction of flow of air from said inlet to said outlet, whereby the air is conducted through said spaces from said inlet to said outlet between the plates at right angles to the corrugations to result in a longer reaction time and larger surface area to give better material transfer between the air and absorption liquid without appreciable pressure loss.

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