Danmarks Tekniske Universitet

Novozymes A/s

Wacker Chemie Ag

Technical University of Denmark

Anders Riisager

Rasmus Fehrmann

Andreas Jonas Kunov-Kruse

Shunmugavel Saravanamurugan

Susanne L Mossin

Sven Pedersen

Saravanamurugan Shunmugavel

Astrid Boisen

Anders Theilgaard Madsen

Vibeke W Jurgensen

Helene Kolding

Soeren Kegnaes

Troels B Christensen

Steffen Buus Kristensen

Jacob S Jensen

Wenjing Fu

Thomas S Hansen

John M Woodley

Santosh Govind Khokarale

Peter Thomassen

Søren Birk Rasmussen

Steffen Buss Kristensen

Siva Sankar Reddy Putluru

Jianmin Xiong

Eduardo J Garcia Suarez

Putluru Siva Sankar Reddy

The present invention relates to isomerization of C4-C6 aldoses to their corresponding C4-C6 ketoses. In particular, the invention concerns isomerization of C4-C6 aldoses over solid zeolite catalysts free of any metals other than aluminum, in the presence of suitable solvent(s) at suitable elevated temperatures. C6 and C5 aldose sugars such as glucose and xylose, which are available in large amounts from biomass precursors, are isomerized to fructose and xylulose respectively, in a one or two-step process over inexpensive commercially available zeolite catalysts, containing aluminum as the only metal in the catalyst. The ketoses obtained are used as sweeteners in the food and/or brewery industry, or treated to obtain downstream platform chemicals such as lactic acid, HMF, levulinic acid, furfural, MMHB, and the like.

Isomerisation of C4-C6 aldoses with zeolites

The present invention relates to a new strategy for capturing NOusing a two-step process.

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The present invention relates to a method for hydrogenolysis of alpha-hydroxy esters or acids, comprising reacting the alpha-hydroxy ester or acid in the presence of a heterogeneous catalyst. The present invention also relates to a method for producing propionic acid ester, and the use of any of the methods for the production of propionic acid esters, such as alkyl propionate.

Process for hydrogenolysis of alpha-hydroxy esters or acids using a heterogeneous catalyst

The present invention concerns the absorption and desorption behavior of carbon dioxide (CO) using ionic liquids derived from amino acids adsorbed on porous carrier materials.

The disclosure concerns an improved method of preparation of nanoparticular vanadium oxide/anatase titania catalysts having a narrow particle size distribution. In particular, the disclosure concerns preparation of nanoparticular vanadium oxide/anatase titania catalyst precursors comprising combustible crystallization seeds upon which the catalyst metal oxide is coprecipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step.

Method of preparation of nanoparticular metal oxide catalysts

The present invention relates to the field of converting carbohydrates into levulinic acid, a platform chemical for many chemical end products. More specifically the invention relates to a method for converting carbohydrates such as mono-, di- or polysaccharides, obtained from for example biomass production into a suitable levulinic acid ester in the presence of a zeolite or zeotype catalyst and a suitable alcohol, and the ester may be further converted into levulinic acid if desired.

Conversion of carbohydrates to levulinic acid esters

The present invention concerns the absorption and in situ oxidation of nitric oxide (NO) in the presence of water and oxygen in ionic liquid compositions at ambient temperature.

Absorption and oxidation of NO in ionic liquids

The present invention concerns a method of preparation of nanoparticular metal oxide catalysts having a narrow particle size distribution. In particular, the invention concerns preparation of nanoparticular metal oxide catalyst precursors comprising combustible crystallization seeds upon which the catalyst metal oxide is co-precipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step. The present invention also concerns processes wherein the nanoparticular metal oxide catalysts of the invention are used, such as SCR (deNOx) reactions of nitrogen oxides with ammonia or urea as reductant, oxidations of alcohols or aldehydes with dioxygen or air to provide aldehydes, ketones or carboxylic acids, and photocatalytic oxidation of volatile organic compounds (VOCs).

Nanoparticular metal oxide/anatase catalysts

The present invention concerns the selective removal of nitrogen oxides (NOx) from gases. In particular, the invention concerns a process, a highly alkali metal resistant heteropoly acid promoted catalyst and the use of said catalyst for removal of NOx from exhaust or flue gases, said gases comprising alkali or earth alkali metals. Such gases comprise for example flue gases arising from the burning of biomass, combined biomass and fossil fuel, and from waste incineration units. The process comprises the selective catalytic reduction (SCR) of NOx, such as nitrogen dioxide (NO) and nitrogen oxide (NO) with ammonia (NH) or a nitrogen containing compound selected from ammonium salts, urea or a urea derivative or a solution thereof as reductant.

Heteropoly acid promoted catalyst for SCR of NOx with ammonia

The present invention relates to a method of producing 5-hydroxymethylfurfural by dehydration of fructose and/or glucose and/or mannose.

Method of producing hydroxymethyl-furfural

A process for continuous carbonylation of carbonylatable reactants with carbon monoxide in the gaseous phase in the presence of a catalyst, wherein said catalyst is a Supported Ionic Liquid-Phase (SILP) catalyst comprising a solution of a Group VIII metal in an ionic liquid confined on a support. The SILP catalyst offers a very large active catalyst area resulting in a very efficient use of catalyst material and a simple apparatus design.

Growing community of inventors

Taastrup, Denmark

Anders Riisager