Haldor Topsoe A/s

Haldor Topse A/s

Michael Brorson

Claus J H Jacobsen

Iver Schmidt

Darrell D Whitehurst

Claus Hviid Christensen

Konrad Herbst

Charlotte Vinding Ovesen

Herman Teunissen

Jens Sehested

Per Zeuthen

Claus Madsen

Barry H Cooper

Christina Hviid Christensen

Thomas Willum Hansen

Erik G Derouane

Haldor F A Tops&oslash;e

Eric G Derouane

Eric O T&ouml;rnqvist

Jens Henrik Hyldtoft

Fernando Morales Cano

Ivar Schmidt

Kim Gr&oslash;n Knudsen

A process for producing a catalyst, comprising the steps of modifying a carrier by a first impregnation with at least one alkaline earth metal in a first metal precursor solution, the first metal precursor being decomposed to form at least one metal oxide or metal hydroxide, thereby obtaining a modified carrier. A second impregnation is carried out by incipient wetness by a second precursor solution comprising at least one metal Me in a second solution. Finally, the second precursor is decomposed, thereby obtaining a catalyst body having an enrichment of the at least one metal Me in the outer shell of the catalyst body, the metal being present in a concentration having either as an egg-shell profile or a hammock profile.

Shell impregnated catalyst and process for producing a shell impregnated catalyst body

A process for catalytic isomerisation of alkyl aromatic compounds in a hydrocarbon process stream comprising contacting the alkyl aromatic compound-containing hydrocarbon stream under isomerisation conditions with a crystalline zeolite catalyst consisting of individual, primary crystals having an intracrystalline, non-crystallographic mesopore system and a mesopore volume of the zeolite crystals above 0.25.

Process for the catalytic isomerisation of aromatic compounds

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 rhenium (IV) sulphide (ReS) nanotube material and a method of preparation of the rhenium (IV) sulphide (ReS) nanotube material. The rhenium (IV) sulphide (ReS) nanotube material comprises hollow cylinders of concentric rhenium (IV) sulphide layers, the ReSinterlayer distance being between 0.5 to 0.7 nm. Each ReSlayer consists of a layer of rhenium atoms sandwiched between two layers of sulfur atoms.

Rhenium (IV) sulphide nanotube material and method of preparation

Described herein is a combined process for improved hydrotreating of diesel fuels, in which the feed to be hydrotreated is pretreated with a selective adsorbent prior to the hydrotreating step to remove polar materials, especially nitrogen containing compounds (N-compounds). The selective adsorption process can employ either liquid or solid adsorbents. After contact of the adsorbent with the diesel fuel feed, the adsorbent containing undesired polar compounds is separated from the diesel fuel. The separated adsorbent is then subjected to a two step procedure for regeneration.

Combined process for improved hydrotreating of diesel fuels

Processes applying mesoporous titanium containing zeolite based catalysts for selective oxidation or epoxidation of hydrocarbons by peroxides.

Process for the catalytic selective oxidation of a hydrocarbon compound in presence of mesoporous zeolite

Method for preparation of small zeotype crystals

Process for the preparation of ammonia from ammonia synthesis gas by contacting the synthesis gas with a bimetallic catalyst comprising a Group VIII metal combined with a Group VIB metal at conditions being effective in the formation of ammonia, wherein the bimetallic catalyst is in its nitride form during contact with the synthesis gas.

Process for the preparation of ammonia and ammonia synthesis catalyst

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Holte, Denmark

Michael Brorson