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Method, synthesis, activation procedure and characterization of an oxygen rich activated porous carbon sorbent for selective removal of carbon dioxide with ultra high capacity

  • US 10,232,342 B2
  • Filed: 06/23/2017
  • Issued: 03/19/2019
  • Est. Priority Date: 07/01/2015
  • Status: Active Grant
First Claim
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1. A material for CO2 adsorption at pressures above 1 bar comprising:

  • a porous material with a surface area of at least 2,800 m2/g, and a total pore volume of at least 1.35 cm3/g,wherein more than 70% of pores of the porous material have diameters of less than 2 nm as measured from N2 sorption isotherms using the BET (Brunauer-Emmett-Teller) method,wherein the porous material has an oxygen content of more than about 7 wt % as measured by X-ray photoelectron spectroscopy, andwherein the porous material has a CO2 adsorption capacity of more than about 100 wt %.

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