PATENTS

3329.   ------.  [SENSEL, E. E., AND BECK, R. A.]  (The Texas Co.).  Catalytic Conversion Process.  United States Patent 2,414,276, Jan. 14, 1947; appl. filed Aug. 28, 1943, Serial No. 500,380; 5 claims (Cl. 260-449.6).  Chem. Abs., vol. 41, 1947, p. 2559.

CO and H₂ are contacted with a powdered hydrogenation catalyst.  A stream of hydrocarbon reaction products is continuously withdrawn from the reaction zone and fractionated after the catalyst particles and the H₂O produced in the reaction have been removed.  Normally gaseous naphtha is separated from the higher boiling hydrocarbon fractions.  Used catalyst powder containing adsorbed hydrocarbons in the kerosine and gas-oil range and wax is withdrawn from the reaction zone and passed through a separate reactivating zone from which it is recycled all or in part to the reaction zone.  The heavy hydrocarbons or fractions of predominantly paraffinic character may be passed to the reactivation zone, wherein they are converted in the presence of the used catalyst undergoing reactivation.  H₂ is continuously passed through the reactivation zone.  This zone is held at a temperature high enough to cause cracking of the hydrocarbons passing through the reactivation zone or deposited on the used catalyst.  Normally gaseous or liquid hydrocarbons such as gasoline are produced.