Dehydrogenation-type reactions with group viii catalysts

Abstract

Abstract A process for the dehydrocyclization of paraffinic hydrocarbons or the dehydrogenation of low molecular weight paraffins to produce hydrogen and mono-olefins, including, contacting the organic materials with a catalyst of an active metal from Group VIII of the Periodic System, such as platinum, palladium, ruthenium and nickel, in amounts of about 0.5 to 5 percent of the finished catalyst and a promoter from the rare earth metal Group of the Periodic System, such as cerium and thorium, in an amount of 1 to 10 percent of the finished catalyst, both deposited on an inert oxide support, such as gamma-type aluminas, silica-alumina, silica-magnesia, etc., at a temperature between about 550* and 1,250*F, a pressure of 0.01 to 2,600 mm. of mercury absolute, and a liquid hourly space velocity of 0.1 to 10. A promoting amount of a second metal selected from the group consisting of alkali metals and alkaline earth metals may also be deposited on the carrier. The hydrogen produced by the dehydrogenation of paraffins is also separated from the olefins and contacted with coal liquids in the presence of the above catalyst or a hydrogenation catalyst and under hydrogenation conditions to increase the saturation of the coal liquids.

Inventors

• 👤 Stephen M Kovach
• 👤 Ronald A Kmecak

Bibliographic Details