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AssigneeThe Curators of the University of Missouri
InventorsJimmy Romanos, Jocob Burress, Peter Pfeifer, Tyler Rash, Parag Shah, Galen Suppes
Estimating the term…
Activated carbon materials and methods of producing and using activated carbon materials are provided. In particular, biomass-derived activated carbon materials and processes of producing the activated carbon materials with prespecified surface areas and pore size distributions are provided. Activated carbon materials with preselected high specific surface areas, porosities, sub-nm (<1 nm) pore volumes, and supra-nm (1-5 nm) pore volumes may be achieved by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process.
A process for making an activated carbon adsorbent having a predetermined pore size distribution and surface area, the process comprising contacting a char with KOH for about one hour at an activation temperature ranging from 700° C. to 900° C. and a KOH:C ratio ranging from 2 to 4.5, wherein the activated carbon adsorbent has a total pore volume of at least 1.0 cc/g and a BET surface area of at least about 2000 m2/g if the KOH:C ratio is at least 3.0.
A process for making an activated carbon adsorbent having a predetermined pore size distribution and surface area, the process comprising contacting a char with KOH flakes or solution for about one hour at an activation temperature of 700° C. and a KOH:C ratio ranging from 2 to 4.5, wherein the activated carbon adsorbent has a % volume of pores of 10 Å diameter or less ranging from about 70% to about 80% for the KOH:C ratio of 2.5, to from about 40% to about 50% for the KOH:C ratio of 3.5.
A process for making an activated carbon adsorbent having a predetermined pore size distribution and surface area, the process comprising contacting a char with KOH solution for about one hour at an activation temperature of 800° C. and a KOH:C ratio ranging from 2.5 to 3.5, wherein the activated carbon adsorbent has a % volume of pores of 10 Å diameter or less ranging from about 55% for the KOH:C ratio of 2.5 to about 40% for the KOH:C ratio of 3.5.
A process for making an activated carbon adsorbent having a predetermined pore size distribution and surface area, the process comprising contacting a char with KOH solution for about one hour at an activation temperature of 900° C. and a KOH:C ratio ranging from 2.5 to 3.5, wherein the activated carbon adsorbent has a % volume of pores of 10 Å diameter or less ranging from about 50% for the KOH:C ratio of 2.5 to about 30% for the KOH:C ratio of 3.5.
A process for making an activated carbon adsorbent having a predetermined pore size distribution and surface area, the process comprising:
A process for making an activated carbon adsorbent having a predetermined pore size distribution and surface area, the process comprising:
A pre-mixed feedstock for the production of an activated carbon adsorbent having a predetermined pore size distribution and surface area, the feedstock comprising KOH flakes or solution and char at a KOH:C ratio ranging from 2 to 4.5, wherein the activated carbon adsorbent is produced by heating the feedstock to an activation temperature ranging from 700° C. to 900° C. for about one hour, and wherein the activated carbon adsorbent has a total pore volume of at least 1.0 cc/g and a BET surface area of at least about 2000 m2/g if the KOH:C ratio is at least 3.0.
A stored methane composition comprising an amount of methane adsorbed to an activated methane adsorbent, wherein:
A stored methane composition comprising an amount of methane adsorbed to an activated methane adsorbent, wherein:
Dependencies are inferred from the claim text.