Veg-gasinstituut N.v.

Basf Corporation

Engelhard De Meern B.v.

The Dow Chemical Company

Comprimo B.v.

Other

Shell Oil Comapny

Gastec N.v.

Akzo Nobel N.v.

Stamicarbon B.v.

Gaz De France

Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek

Universiteit Utrecht

Jacobs Nederland B.v.

Shell Internationale Research Maatschappij, B.v.

John Wilhelm Geus

Leonardus Wijnand Jenneskens

Jacobus Hoekstra

Willem J Van Der Wal

Eugene G Kuijpers

Adrianus J Van Dillen

Carolus M Mesters

Pieter H Berben

Garmt R Meima

Frederik R Van Buren

Ivo I Tijburg

Peter J Van Den Brink

Eefjan Breukink

Onno L Gijzeman

Jacobus E Bongaarts

Marinus Franciscus Johannes Evers

Dick E Stobbe

L W Jenneskens

J Hoekstra

Ronald Jan Schoonebeek

Carolus Matthias Anna Maria Mesters

Bernard Hendrik Reesink

Cornelis Jacobus Smit

Pieter Hildegardus Berben

Robertus Gerardus Leliveld

Johannes Borsboom

Jan Adolf Lagas

Eelco Titus Carel Vogt

Jim Aloysius Maria Brandts

Mark De Boer

Lorianne Wagemaker

Frederik Borninkhof

Johannes Van Beijnum

Antonius J Van Wingerden

Robert Johan Andreas Maria Terörde

Andries Q Boon

Aletta Mulder

Edward Jan Vlietstra

Francien Van Looy

Michiel J Verhaak

Nilanjan Brahma

Roland Jacobus Martinus Josephus Vogels

Robert Johan Terorde

Francine Van Looij

Robert Johan Andreas Maria Ter&ouml;rde

Rudolf Alfred Overbeek

Rudolf Alfred Overbeck

Leonardus A Hermans

Roger Eijkhoudt

Krijn P De Jong

Johannes M Wigman

Peter C Van Stiphout

Frederik Versluis

Peter C Van Striphout

Eliza Boellaard

Frederick Versluis

John W Linowski

Dirk Van De Kleut

LW Jenneskens

D Van De Kleut

E J Vlietstra

EJ Vlietstra

The invention relates to nano-particles comprising metallic ferromagnetic nanocrystals combined with either amorphous or graphitic carbon in which or on which chemical groups are present that can dissociate in aqueous solutions. According to the invention there is provided nano-particles comprising metal particles of at least one ferromagnetic metal, which metal particles are at least in part encapsulated by graphitic carbon. The nano-particles of the invention are prepared by impregnating carbon containing bodies with an aqueous solution of at least one ferromagnetic metal precursor, drying the impregnated bodies, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing the metal compounds to the corresponding metal or metal alloy.

Nano-particles containing carbon and a ferromagnetic metal or alloy

The invention is directed to the production of metal-carbon containing bodies, which process comprises impregnating cellulose, cellulose-like or carbohydrate bodies with an aqueous solution of at least one metal compound, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing at least part of the at least one metal compound to the corresponding metal or metal alloy.

Process for the preparation of metal-carbon containing bodies

The invention is directed to bodies comprising an amorphous carbon particle on which are supported nanoparticles of an oxide of lanthanide. These bodies find use as a pharmaceutical for use in a surgery or therapy and diagnostic methods. The bodies can be made by a process comprising impregnating a carbon source material by contacting it with a solution of a salt of the lanthanide; drying the impregnated carbon source material; and subjecting the dried impregnated material to pyrolysis under inert conditions.

Amorphous carbon supported nanoparticles comprising oxides of lanthanides and method for preparing them

The invention is directed to a process for producing carbon nanofibers and/or carbon nanotubes, which process comprises pyrolyzing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a compound of an element or elements, the metal or alloy, respectively, of which is capable of forming carbides, in a substantially oxygen free, volatile silicon compound containing atmosphere, optionally in the presence of a carbon compound.

Process for producing carbon nanofibers and/or carbon nanotubes

The invention is in the field of modified carbon products. More in particular, the invention is in the field of graphitized activated carbon bodies. The invention is directed to carbon bodies and ferromagnetic carbon bodies, the production of these bodies from activated carbon, and the applications of the carbon bodies and ferromagnetic carbon bodies, for instance in water treatment and in electrochemical applications.

Carbon bodies and ferromagnetic carbon bodies

The present invention is directed to a process and a reactor for removing organic compounds from gas flows, in which process the said gas flow is passed through a first compartment of a multi-compartment reactor, which reactor comprises at least one first compartment and at least one second compartment, which first and second compartments are in heat exchanging relationship with each other through a joint, gas-tight wall, and in which first compartment the gas flow is heated by heat exchange with the said second compartment, passing the heated gas flow to the second compartment, further heating the gas flow entering the second compartment either by adding additional combustible gas or electric heating, and passing the heated gas through the second compartment over a catalytic oxidation catalyst to combust the organic compounds, whereby both the first and the second compartment are filled with porous sintered metal material, which is in heat exchanging relationship to the said joint wall, whereby the metal material in the second compartment is provided with the said oxidation catalyst.

Process and reactor for removing organic compounds from gas flows

The invention is directed to a process for producing hydrogen from methanol, comprising providing at least one flow of methanol and (1) catalytically converting part of the methanol or a fuel gas with air oxygen to carbon dioxide and water, while generating heat and (2) catalytically converting the methanol or the remaining part of the methanol at elevated temperature to hydrogen and carbon monoxide, followed by conversion of the carbon monoxide with water to hydrogen and carbon dioxide, wherein the heat generated in step (1) is sufficient to produce the elevated temperature required in step (2), wherein both steps (1) and (2) are carried out in a bed of sintered metal particles, the bed of sintered metal in step (2) having a surface that is catalytically active for the conversion of methanol to hydrogen, and wherein the beds of sintered metal particles are in heat exchanging relationship.

Process for producing hydrogen from methanol

A process for the selective oxidation of hydrogen sulphide in a hydrogen sulphide containing feed gas to elemental sulphur, wherein the hydrogen sulphide containing feed gas (), an inert liquid medium (), and a molecular-oxygen containing gas () are supplied to a reaction zone () comprising at least one catalytic zone () comprising an oxidation catalyst to form elemental sulphur and a gaseous stream depleted in hydrogen sulphide (), in which process the oxidation catalyst of each catalytic zone () is contacted with hydrogen sulphide and/or molecular-oxygen in the presence of inert liquid medium at a temperature in the range of from 120 to 160&#xb0; C., under such conditions that the elemental sulphur formed is essentially in liquid form and is removed from the reaction zone with the inert liquid medium.

Process for the selective oxidation of hydrogen sulfhide

The invention provides a catalyst, a method for making the catalyst and a method for using the catalyst to promote the selective oxidation of hydrogen sulfide into elemental sulfur. The catalyst may be prepared by contacting a catalyst support, such as silica, with a mixed oxide having atomically mixed iron ions and zinc ions, to produce a support material impregnated with a mixed oxide having atomically mixed iron ions and zinc ions in an oxidic lattice. This impregnated catalyst support is then dried and calcined, preferably with chloride ions present, to produce a catalyst of an iron and zinc oxide mixture supported on silica. It has been found that when chloride is added to the impregnated catalyst support prior to calcination and drying, the sintering of the iron and zinc can be controlled more easily and the formation of iron and zinc oxide is promoted. It has also been found that the catalyst of the invention exhibits improved selectivity characteristics when compared to a catalyst prepared without the chloride.

Catalyst for the selective oxidation of sulfur compounds to elemental sulfur

The invention relates to a method for applying a non-permeable, ceramic layer of a thickness of not more than about 100 &mgr;m to a ceramic or metallic body by applying a solution of one or more elastomers, which elastomers contain substantially not exclusively sulfur, carbon, hydrogen and oxygen, optionally drying, and pyrolyzing to form a porous layer and subsequently sintering at increased temperature to form a non-permeable ceramic layer.

Thin ceramic coatings

The invention pertains to a catalyst at least comprising a hydrogenation metal component and a swelling synthetic clay consisting of elemental clay platelets, with the average diameter of the clay platelets not exceeding 1 micron and the average degree of stacking of the clay platelets not exceeding 20 platelets per stack. The catalyst is especially suitable for the hydroprocessing of hydrocarbon feeds, the term &ldquo;hydroprocessing&rdquo; encompassing all processes in which a hydrocarbon feed is treated with hydrogen. The clays which are suitable for use in the catalyst according to the invention may be prepared as described in Netherlands patent application No. 9401433.

Catalyst comprising at least a hydrogenation metal component and a synthetic clay and a process of using

The invention provides a catalyst; a method for making the catalyst and a method for using the catalyst to promote the selective oxidation of hydrogen sulfide into elemental sulfur. The catalyst may be prepared by contacting a catalyst support, such as silica, with a solution containing ammonium metal salts, such as ammonium iron citrate and ammonium zinc citrate, and an amount of chloride (e.g., ammonium chloride) that is between about 0.1 and about 20 weight percent of the metal ions in the solution, to produce a support material impregnated with ammonium metal citrate salts and ammonium chloride. This impregnated catalyst support is then dried and calcined to produce a catalyst, such as iron and zinc oxide mixture supported on silica. It has been found that by adding chloride to the impregnated catalyst support prior to calcination and drying, that the sintering of the metal oxides can be controlled and the formation of a mixed metal oxide is promoted. It has also been found that the catalyst of the invention exhibits improved selectivity characteristics when compared to a catalyst prepared without the chloride.

Catalyst and method for the selective oxidation of sulfur compounds to elemental sulfur

Synthetic clay minerals are made up of elementary three-layer platelets consisting of a central layer of octahedrally oxygen-surrounded metal ions (octahedron layer), which layer is surrounded by two tetrahedrally surrounded, silicon atom-containing layers (tetrahedron layers), a number of such elementary platelets being optionally stacked. The dimensions of the clay platelets vary from 0.01 &mgr;m to 1 &mgr;m, the number of the stacked elementary three-layer platelets varies from on average one platelet to twenty platelets, while in the octahedron layer at most 30 at. % of the metal ions has been replaced by ions of a lower valency and in the tetrahedron layers at most 15 at. % of the silicon ions has been replaced by ions of a lower valency, such a replacement having taken place in at least one of these layers and these layers having a deficiency of positive charge because of the replacement. They are prepared by bringing the pH of an aqueous liquid containing the components of the clay to a value of 3-9 and the temperature of the liquid to a value of from 60 to 350&deg; C. and maintaining it at said value for the time required for the reaction, the pH being maintained at a value within said range.

Synthetic swelling clay minerals

A process is provided for the removal of metal carbonyl from gaseous streams in the presence of hydrogen sulphide and/or water using a hydrophobic porous adsorbent with an accessible pore volume for pore sizes between 0.55 and 4 nm of at least 0.005 ml/g.

Process for the removal of metal carbonyl from a gaseous stream

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Bilthoven, Netherlands

John Wilhelm Geus