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Scrubbing with metal hydroxides

Alkali metal hydroxides are sometimes used to "scrub" excess carbon dioxide from the air in closed spaces (such as submarines and spacecraft). For example, lithium hydroxide reacts with carbon dioxide according to the unbalanced chemical equation... [Pg.314]

A 72-in. ID tower currently is used to scrub air containing 2,500 ppm by vol. of acetic acid vapor. The air from two process operations enters this scrubber at 86°F and atmospheric pressure. The scrubbing liquid is a 0.37 wt% aqueous solution of sodium hydroxide. The present scrubber is packed with a 15-ft bed of 1-in. metal Pall rings. Only 110 gpm of scrubbing solution is available. Because of the tendency of the liquid to foam, the present scrubber handles only 3,600 GFM from each of the two parallel trains in order to restrict the pressure drop to 0.30 in. HgO/ft. Can the vent from a third new operation also be handled in this scrubber by use of a different tower packing without loss of absorption efficiency ... [Pg.45]

See other pages where Scrubbing with metal hydroxides is mentioned: [Pg.782]    [Pg.116]    [Pg.98]    [Pg.434]    [Pg.169]    [Pg.149]    [Pg.141]    [Pg.160]    [Pg.164]    [Pg.242]    [Pg.4532]    [Pg.556]    [Pg.428]   
See also in sourсe #XX -- [ Pg.210 ]



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