公开(公告)号：US20230069515A1

公开(公告)日：2023-03-02

申请号：US17795763

申请日：2021-02-05

Applicant: TOPSOE A/S

Inventor： Bengt Peter Gustav BLENNOW ,  Rainer KÜNGAS ,  Jeppe RASS-HANSEN ,  Tobias Holt NØRBY ,  Thomas HEIREDAL-CLAUSEN ,  Poul Georg MOSES ,  John Bøgild HANSEN

IPC: C25B15/08 ,  C25B1/02 ,  C25B1/042 ,  C25B1/23 ,  C25B9/19 ,  C25B13/07 ,  C25B15/02

Abstract: In a method for supplying oxygen-enriched gas to an oxygen consuming process, in which the oxygen-enriched gas with a low nitrogen content is generated by supplying an anode-side feed gas comprising CO2 to the anode side of a solid oxide electrolysis cell, oxygen is generated on the anode side of the solid oxide electrolysis cell. This way, an anode-side product gas is formed, in which the oxygen-enriched gas comprises at least a part. The oxygen-enriched gas has a low nitrogen content, and the temperature of the oxygen-enriched gas exiting the solid oxide electrolysis cell is between 600 and 1000° C. The method has multiple advantages, first of all as regards energy saving.