VERFAHREN FUER DIE ISOMERISIERUNG VON PARAFFINISCHEN KOHLENWASSERSTOFFVERBINDUNGEN.

摘要

An isomerization catalyst composition comprising a platinum group metal and a support containing hydrogen - form crystalline mordenite and a refractory inorganic oxide is particularly characterized by a surface area of at least 580 m<2>/g. The catalyst is producible by contacting a calcined composite of the hydrogen - form mordenite and refractory inorganic oxide with an aqueous acidic solution containing ammonium ions, whereby the surface area is increased without increasing the silica to alumina ratio of the mordenite. The catalyst composition is especially suitable for the isomerization of normal to branched paraffinic hydrocarbons in the presence of sulfur compounds.