Shell Oil Comapny

Roland A Garin

Pierre E Dejaifve

Jean-Paul Darnanville

Pierre Grandvallet

Jean-Claude Clement

Jacques J Dufour

Daniel G Allais

Jean-Claude Lambert

Process for the preparation of a polar lubricating base oil, including reacting a hydrocarbonaceous product with a polar compound, including at least one heteroatom and which hydrocarbonaceous product has been prepared by contacting hydrocarbons and/or derivatives thereof with an active-hydrogen containing system by a process which includes generating a hydrogen-containing plasma and allowing contact of the hydrocarbons and/or derivatives thereof in liquid form with the plasma-generated system and recovering the hydrocarbonaceous product.

Process for the preparation of polar lubricating base oils

Dehydrogenation catalyst, wherein the molar ratio between iron oxide providing agent and potassium oxide providing agent calculated as iron: potassium atomic ratio is in the range of from 1.5 to 60, a K.sub.2 Fe.sub.12 O.sub.19 phase is present in an octahedral Fe.sub.3 O.sub.4 matrix, showing crystalline epitaxy between the hexagonal structure of K.sub.2 Fe.sub.12 O.sub.19 and the (111) planes of the Fe.sub.3 O.sub.4 spinel structure, and showing intense X-ray diffraction peaks in the area of from d=12.4 .ANG. to d=1.60 .ANG.. Process for the preparation of such catalyst and process for dehydrogenation of optionally substituted alkanes into olefins.

Catalyst for dehydrogenating organic compounds, a process for its

Dehydrogenation catalyst

Alkenylbenzenes, e.g. styrene, are prepared by non-oxidative dehydrogenation of alkylbenzenes at elevated temperature in the presence of steam and a novel catalyst comprising iron oxide and, as promoters, an alkali metal compound, .ltoreq.10% wt of a compound of a rare earth metal and a calcium compound (not a hydraulic cement) and &lt;1.4% wt of a molybdenum compound.

Catalyst for the non-oxidative dehydrogenation of alkylbenzene to

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Grande Couronne, France

Roland A Garin