623. ENGEL, W. F. (Shell Development Co.). Gas Purification. United States Patent 2,537,448. Jan. 9, 1951: appl. filed Apr. 22, 1947. Serial No. 743,187, in the Netherlands May 22, 1946: 10 claims (Cl. 23-3). Chem. Abs., vol. 45. 1951. p. 3147.

Patent Abstracts

623. ENGEL, W. F. (Shell Development Co.). Gas Purification. United States Patent 2,537,448. Jan. 9, 1951: appl. filed Apr. 22, 1947. Serial No. 743,187, in the Netherlands May 22, 1946: 10 claims (Cl. 23-3). Chem. Abs., vol. 45. 1951. p. 3147.

Gas of relative high thermal stability is purified without altering it composition. A mixture of CO and H₂ containing about 2 vol. of H₂ per 1. of CO, having an S content of 120 mg. per m.³, and a Cl content of 10 mg. per m.³ of gas, was purified by contact with a catalyst consisting of active C and KOH at 550ºatmospheric pressure and a through put rate of 40 1. of gas per 1. of catalyst per hr. The S or Cl, present in the untreated gas is an organically combined form, was found to be unaffected by treatment with NaOH. The catalyst has a K content of 30 wt. %. The purified gas obtained during 20 hr. of continuous operation had an average overall S content of only 2 mg. and Cl content of 1 mg. per m.³ of gas.

See abs. 1086, 1087, 1098, 1099, 1100.

ENGELHEART, F. See abs. 1909.