公开(公告)号：US20250161863A1

公开(公告)日：2025-05-22

申请号：US18832789

申请日：2023-01-26

Applicant: THE UNIVERSITY OF SHEFFIELD

Inventor： Peter HANDFORD-STYRING ,  George Richard Michael DOWSON

IPC: B01D53/053

Abstract: A method for refining carbon dioxide from an input mixed gas stream comprising carbon dioxide, the method comprising; introducing a compressed first portion of the input mixed gas stream into a first adsorption vessel containing carbon dioxide sorbent material to provide a first compressed gas mixture within the first adsorption vessel; venting, from the first adsorption vessel, a carbon dioxide depleted fraction of the first compressed gas mixture; venting, from the first adsorption vessel, an intermediate fraction of the first compressed gas mixture; venting, from the first adsorption vessel, a carbon dioxide enriched fraction of the first compressed gas mixture, wherein the intermediate fraction of the first compressed gas mixture has a concentration of carbon dioxide higher than that of the input gas mixture but lower than that of the enriched fraction of the first compressed gas mixture; collecting the carbon dioxide enriched fraction of the first compressed gas mixture; introducing the intermediate fraction of the first compressed gas mixture and a compressed second portion of the input mixed gas stream into a second adsorption vessel containing carbon dioxide sorbent material to provide a second compressed gas mixture within the second adsorption vessel; venting, from the second adsorption vessel, a carbon dioxide depleted fraction of the second compressed gas mixture; venting, from the second adsorption vessel, a carbon dioxide enriched fraction of the second compressed gas mixture; and collecting the carbon dioxide enriched fraction of the second compressed gas mixture.