Shell Oil Comapny

Shell Internationale Research Maatschappij, B.v.

Donald Reinalda

John Robert Lockemeyer

Randall Clayton Yeates

Marek Matusz

Dominicus Maria Rekers

Michael Alan Richard

Frank J Janssen

Coenraad H Wilms

Hendrik W Bruijn

Marcello Stefano Rigutto

Paul Michael McAllister

Patrick Moureaux

Emmanuel E Neel

Anke Derking

Paul Blankenstein

Jelte Kars

Jacques A Levavasseur

Hans De Lang

Auke Antoinette Van Heuzen

Alouisius Nicolaas Bos

Alouisius Nicolaas Renee Bos

Process for producing paraffinic hydrocarbons, the process comprising the following steps: (a) contacting hydrogen and a feedstock comprising triglycerides, diglycerides, monoglycerides and/or fatty acids with a hydrogenation catalyst under hydrodeoxygenation conditions; and (b) contacting the whole effluent of step (a) with a hydroprocessing catalyst comprising sulphided Ni and sulphided W or Mo as hydrogenation components on a carrier comprising amorphous silica-alumina and/or a zeolitic compound under hydro-isomerization conditions.

Process for producing paraffinic hydrocarbons

A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per msurface area of the support, which method comprises

Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin

A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder having a relatively small inside (bore) diameter. The catalyst is made by providing the shaped material of a particular geometry and incorporating the catalytic components therein. The catalyst is useful in the epoxidation of ethylene.

Silver-containing catalysts, the manufacture of such silver-containing catalysts, and the use thereof

The invention relates to a high surface area zirconia, having a surface area of above 125 m.sup.2 /g and preferably of above 200 m.sup.2 /g after calcination. The high surface area zirconia product of the invention can be prepared by mixing a zirconium salt solution with an alkali or ammonium compound, the zirconium hydroxide precipitate being aged in the presence of an oxygen acid of an element of group 5 or 6 of the Periodic Table of Elements and subsequently being calcined, optionally after a washing step. The preferred acid is phosphoric acid.

High surface area zirconia

A zirconia-based catalyst is prepared by mulling a mixture of a zirconia source and a solvent, which mixture has a solids content of from 20% by weight to 60% by weight, and extruding the mixture.

Process for the preparation of zirconia-based catalyst

The invention relates to a process for the preparation of a catalyst suitable for the preparation of hydrocarbons from carbon monoxide and hydrogen, wherein a cobalt compound is applied on a porous, inert carrier and the carrier is dried and calcined forming the catalyst, characterized in that the cobalt compound is cobalt nitrate, and the carrier provided with the cobalt compound is calcined in an atmosphere containing nitrogen oxide at a concentration of at least 20% by volume, not taking the water content of the atmosphere into consideration, and to a catalyst comprising agglomerates of cobalt oxide crystallites distributed over a porous, inert carrier, having an agglomerate size of about 1-10 micrometer.

Catalyst for the preparation of hydrocarbons from carbon monoxide and

1. A catalyst system for olefin disproportionation containing molybdenum oxide supported on alumina prepared by a process which comprises:

Catalyst system for olefin disproportionation

A catalyst system for olefin disproportionation containing molebdenum oxide supported on alumina prepared by a process which comprises:

A process is described for the preparation of modified refractory oxides by impregnating refractory oxides or mixtures thereof with at least one hydrocarbyl ammonium metallate and/or compounds comprising at least one hydrocarbyl ammonium moiety and at least one reactive metal moiety of Group 2a, 3a, 4a and/or 4b of the Periodic Table of Elements. The modified refractory oxides can be used as catalysts or catalyst supports in the catalytic conversion of hydrocarbons.

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Amsterdam, Netherlands

Donald Reinalda