Haldor Topsoe A/s

Haldor Topse A/s

Kresten Egeblad

Niklas Bengt Jakobsson

Rasmus Trane-Restrup

Jacob Hjerrild Zeuthen

Claus Hviid Christensen

Troels Dahlgaard Stummann

Kake Zhu

Marina Kegnaes

Oxygen is removed from a gas feed such as a landfill gas, a digester gas or an industrial COoff-gas by heating the feed gas, optionally removing siloxanes and silanols from the heated feed gas, optionally removing part of the sulfur-containing compounds in the heated feed gas, injecting one or more reactants for oxygen conversion into the heated feed gas, carrying out a selective catalytic conversion of any or all of the volatile organic compounds (VOCs) present in the gas, including sulfur-containing compounds, chlorine-containing compounds and any of the reactants injected, in at least one suitable reactor, and cleaning the resulting oxygen-depleted gas. The reactants to be injected comprise one or more of H, CO, ammonia, urea, methanol, ethanol and dimethyl ether (DME).

Method for the removal of oxygen from an industrial gas feed

Oxygen is removed from a gas feed such as a landfill gas, a digester gas or an industrial COoff-gas by removing sulfur-containing compounds and siloxanes from the feed gas, heating the feed gas, injecting one or more reactants for oxygen conversion into the heated feed gas, carrying out a selective catalytic oxygen conversion in at least onesuitable reactor and cleaning the resulting oxygen-depleted gas. The reactants to be injected comprise one or more of H, CO, ammonia, urea, methanol, ethanol and dimethylether (DME).

Method for the removal of oxygen from an industrial gas

A method for the purification of a raw gas stream by selective catalytic oxidation, in which organic and inorganic sulfur compounds, halogenated and non-halogenated volatile organic compounds are selectively oxidized without substantially oxidizing the lower hydrocarbons and the sulfur containing compounds present in the gas to sulfur trioxide and excess of oxygen is removed by oxidation of lower alcohols, ethers or hydrogen added to the raw gas stream upstream the catalytic oxidation.

Process for the purifying of a raw gas stream containing mainly C1-C5 hydrocarbons and carbon dioxide, and impurities of organic and inorganic sulfur compounds, halogenated and non-halogenated volatile organic compounds and oxygen

A method for producing zeolite or zeotype crystals with a hierarchical pore system having both pores with average diameter between 0.3-2 nm and pores with an average diameter size larger than 4 nm in diameter, comprising the steps of applying a carbohydrate or a carbohydrate solution onto a zeolite precursor material or into a zeolite precursor composition, partly or fully decomposing the carbohydrate, crystallizing the zeolite, removing the partly or fully decomposed carbohydrate by calcination or combustion.

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Farum, Denmark

Kresten Egeblad