Climeworks Ag

Mathis Baumann

Christoph Gebald

Jan André Wurzbacher

Alexander Spiteri

Tobias Niebel

Angelo Vargas

Aylin Türkan Külür

The invention relates to a method to produce a particulate activated carbon material for capturing COfrom air, wherein the particulate activated carbon is impregnated with alkali carbonate salt such as KCO; and wherein the impregnated particulate activated carbon either has, determined using nitrogen adsorption methods, a pore volume of at least 0.10 cm/g for pore sizes of at least 5 nm and a pore volume of at most 0.30 cm/g for pore sizes of less than 2 nm or is based on a mixture of different alkali carbonate salts, or has a particular pore surface for pore sizes in the range of 2 nm-50 nm.

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Zurich, Switzerland

Mathis Baumann