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Patent Abstracts

       61.       ------.  [ATWELL, H. V.]  (The Texas Co.).  Simultaneous Dehydrogenation and Hydrocarbon Synthesis With Fluidized Catalyst in a Single Reactor.  United States Patent 2,486,243, Oct. 25, 1949; appl. Filed Jan 6, 1948, Serial No. 759: 8 claims (Cl. 260-449.6).  Chem. Abs., vol. 44, 1950, p. 1676.

Separate conversions are carried out simultaneously in a common reaction zone to produce a composite hydrocarbon product, certain constituents of which are formed from 1 conversion and certain of which are formed from the companion conversion.  Naphthalene hydrocarbons are converted into aromatics by action of a dehydrogenating catalyst.  H2 so liberated is consumed, at least in part, in the synthesis of hydrocarbons from H2 and CO.  The endothermic dehydrogenation uses the exothermic heat of the hydrocarbon synthesis.  Two catalysts may be sued by confining a mass of 1 catalyst within the reaction zone while passing a suspension of the other catalyst in a suitable fluid, either gaseous or liquid, through the confined mass of catalyst.  The suspended catalyst is removed with the products, separated, and recycled to the reaction zone.  One foreign and 2 United States patents cited.  Addition to the United States Patent 2,443,673 (abs. 54).