PATENT

3321.  SEGUY, J. D. (Universal Oil Products Co.).  Cracking Hydrocarbon Oils.  United States Patent2,039,459, May 5, 1936; appl. filed Dec. 14, 1932.  Chem. Abs., vol. 30, 1936, p. 4309.

Oil, such as a residual petroleum oil, is cracked in a cracking zone, and residue separated from vapors is treated with air and steam at temperatures sufficiently high  to form a gaseous mixture containing CO and H₂; this mixture is introduced into an independent zone maintained under synthesizing conditions of temperature, pressure, and catalysis in which the CO and H₂ are synthesized into condensable products (suitably in the presence of a catalyst), and the vapors from this synthesis are combined with vapors from the cracking operation ; the commingled vapors are fractionated, and resultant reflux condensate is passed to the cracking zone, the fractionated vapors being finally condensed.  Describes apparatus.