• 专利标题:   Sorbent used in system for carbon dioxide removal from ambient air, comprises silica, carbonaceous material, and epoxy modified aminopolymer, where carbonaceous material is graphite, graphene, coal, coke, nanotubes, fullerenes, and activated carbon, silica is combination of fumed silica.
  • 专利号:   US2023046271-A1
  • 发明人:   PRIYE A, LEE J
  • 专利权人:   UNIV CINCINNATI
  • 国际专利分类:   B01D053/04, B01D053/62, B01D053/96, B01J020/10, B01J020/20, B01J020/26, B01J020/28, B01J020/34
  • 专利详细信息:   US2023046271-A1 16 Feb 2023 B01D-053/04 202320 English
  • 申请详细信息:   US2023046271-A1 US884036 09 Aug 2022
  • 优先权号:   US230878P, US884036

▎ 摘  要

NOVELTY - Sorbent comprises silica, carbonaceous material, and epoxy modified aminopolymer. USE - Sorbent used in system for carbon dioxide removal from ambient air (claimed). ADVANTAGE - The sorbent shows minimum degradation by oxygen (O2) and thermal desorption over long-term adsorption and desorption cycles, can readily achieve ≯95+% CO2 purity for CO2 sequestration or downstream utilization, and has improved the stability. The CO2 can be separated from the entire sorbent-laden fabric filter (FF) during the desorption phase. The FF can be sequentially replaced from the front. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: 1. a method for removing carbon dioxide (CO2) from ambient air, which involves: providing a flow of ambient air across the sorbent; 2. a method for regenerating the sorbent, which involves: heating the sorbent to above 70℃ at below 0.9 atm and flowing CO2or steam across the sorbent; and 3. a system for removing CO2from ambient air, which comprises: a sorbent.