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Return to Abstracts of Literature 1500-1749

Literature Abstracts

 1708.    KEHDE, H., FAIRFIELD, R. G., FRANK, J. C., AND ZAHNSTECHER, L. W.  Ethylene Recovery.  Commercial Hypersorption Operation.  Chem. Eng. Progress, vol. 44, No. 8, 1948, pp. 575-582; Chem. Abs., vol. 42, 1948, p. 8149.

       Describes hypersorption process for the continuous separation of gases by selective adsorption on a moving bed of activated C; also operation and performance of the first full-scale commercial hypersorber built for the Dow Chemical Co. to recover small concentrations of C₂H₄ from a H₂-CH₄ stream at 75 p.s.i.g.  From a feed gas containing 4.5-6.0 vol. % C₂H₄, a C₂H₄ product is obtained of 92-93% purity and 0.1% maximum CH₄ contamination.  The H₂-CH₄ overhead stream contains less than 0.1% C₂H₄.