Haldor Topsoe A/s

Haldor Topse A/s

Konrad Herbst

Claus J H Jacobsen

Jindrich Houzvicka

Iver Schmidt

John Zavilla

Michael Brorson

Niels Jørgen Blom

Kim Grøn Knudsen

Peter Stern

Birgitte Tofte Jespersen

Glen Starch-Hytoft

S&oslash;ren Pehrson

S&oslash;ren Dahl

A process for preparation of a paraffin isomerization catalyst comprising a mixture of a Group IVB metal oxide, a Group VIB metal oxide, a Group IIIA metal oxide and a Group VIII metal. The process includes the steps of: a) contacting a hydroxide of the Group IVB metal with an aqueous solution of an oxyanion of the Group VIB metal to provide a mixture, (b) drying the mixture to provide a dry powder, (c) kneading the powder with a Group IIIA hydroxide gel and a polymeric cellulose ether compound to form a paste, (d) shaping the paste to form a shaped material, (e) calcining the shaped material to form a calcined material, (f) impregnating the calcined material with an aqueous solution of a Group VIII metal salt to provide the catalyst, and (g) calcining the catalyst.

Process for the preparation of a paraffin isomerization catalyst

A process for the conversion of linear and/or branched paraffin hydrocarbons based on the use of an ionic liquid catalyst in combination with a metal salt additive, which provides a catalytic composition with an increased activity, compared with said ionic liquid. Under suitable reaction conditions this conversion is leading to paraffin hydrocarbon fraction with higher octane number.

Process for paraffin hydrocarbon isomerization and composite catalyst therefore

The invention concerns a process for the immobilization of a homogeneous catalyst comprising immobilizing the homogeneous catalyst in zeotype crystals with a non-crystallographic mesopore system and a mesopore volume of the zeotype crystals above 0.25 ml/g. The invention also concerns a catalytic material prepared by the immobilization process.

Process for the immobilization of a homogeneous catalyst, and catalytic material

A process for the conversion of linear and/or branched paraffins hydrocarbons, catalysed by an ionic liquid catalyst, in the presence of a cyclic hydrocarbon additive containing a tertiary carbon atom. The presence of the specific hydrocarbon additives influences the reaction mechanism by increasing the selectivity towards the formation of paraffin hydrocarbons with a higher degree of branching.

Process of paraffin hydrocarbon isomerisation catalysed by an ionic liquid in the presence of a cyclic hydrocarbon additive

Method of preparing zeolite single crystals with straight mesopores

Growing community of inventors

Kgs. Lyngby, Denmark

Konrad Herbst