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:
May. 27, 2025
Filed:
Apr. 21, 2020
Casale SA, Lugano, CH;
Anne Streb, Zurich, CH;
Max Hefti, Zurich, CH;
Matteo Gazzani, Utrecht, NL;
Marco Mazzotti, Zurich, CH;
CASALE SA, Lugano, CH;
Abstract
A pressure swing adsorption process (PSA) comprising the following steps: feeding an input gas containing H, COand impurities through a COadsorbent material in a pressure vessel under a high pressure; withdrawing a first H-rich product gas due to adsorption of COin the adsorbent material; setting the pressure to an intermediate pressure causing the adsorbent material to release a second gas stream; passing a CO-rich purge stream through the adsorbent material, obtaining a purge gas; setting the pressure to a sub-atmospheric low pressure, so that a CO-rich product gas is released under vacuum by the adsorbent material; re-pressurizing the vessel to said high pressure; said steps being performed cyclically in a pressure vessel or in a plurality of parallel pressure vessels of a multiple vessel setup.