The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2023
Filed:
Nov. 08, 2018
Climeworks Ag, Zürich, CH;
Christoph Gebald, Zürich, CH;
Jan André Wurzbacher, Zürich, CH;
Angelo Vargas, Zürich, CH;
Aylin Türkan Külür, Zürich, CH;
Mathis Baumann, Zürich, CH;
Alexander Spiteri, Zürich, CH;
Tobias Niebel, Zürich, CH;
CLIMEWORKS AG, Zurich, CH;
Abstract
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.