Catalyst functionalized buffer sorbent pebbles for rapid separation of carbon dioxide from gas mixtures
View Patent ↗A method for separating CO 2 from gas mixtures uses a slurried media impregnated with buffer compounds and coating the solid media with a catalyst or enzyme that promotes the transformation of CO 2 to carbonic acid. Buffer sorbent pebbles with a catalyst or enzyme coating are provided for rapid separation of CO 2 from gas mixtures.
1. An apparatus for separation of carbon dioxide from a gas mixture containing the carbon dioxide, comprising:
a water wash, said water wash including a spray system wherein the gas mixture is washed with water by said spray system and wherein the carbon dioxide in the gas mixture is dissolved in said water producing carbon dioxide laden water,
an absorbing media made of a multiplicity of pebbles with each pebble being a porous sorbent pebble, said porous sorbent pebble including
a sorbent pebble body made of absorbent material that absorbs carbon dioxide and
a surface layer surrounding said sorbent pebble body, said surface layer having an embedded catalyst or enzyme that speeds the uptake of carbon dioxide,
said water wash including an area wherein a slurry is formed of said absorbing media and said carbon dioxide laden water wherein said embedded catalyst or enzyme and said absorbent material takes up the carbon dioxide from said carbon dioxide laden water, and
a heating unit adapted to heat said absorbing media wherein said absorbing media is heated thereby driving off the carbon dioxide whereby the apparatus with said absorbing media made of a multiplicity of pebbles with each pebble being a porous sorbent pebble provides separation of the carbon dioxide from the gas mixture.
2. An apparatus for separation of carbon dioxide from a gas mixture containing the carbon dioxide, comprising:
a water wash, said water wash including a spray system wherein the gas mixture is washed with water by said spray system and wherein the carbon dioxide in the gas mixture is dissolved in said water producing carbon dioxide laden water,
an absorbing media made of a multiplicity of pebbles with each pebble being a porous sorbent pebble, said porous sorbent pebble including
a sorbent pebble body made of absorbent material that absorbs carbon dioxide and
a surface layer surrounding said sorbent pebble body,
a catalyst attached to said surface layer providing an attached catalyst or enzyme that speeds the uptake of carbon dioxide,
said water wash including an area wherein a slurry is formed of said absorbing media and said carbon dioxide laden water wherein said attached catalyst or enzyme and said absorbent material takes up the carbon dioxide from said carbon dioxide laden water, and
a heating unit adapted to heat said absorbing media wherein said absorbing media is heated thereby driving off the carbon dioxide whereby the apparatus with said absorbing media made of a multiplicity of pebbles with each pebble being a porous sorbent pebble provides separation of the carbon dioxide from the gas mixture.
3. A system for separation of carbon dioxide from a gas mixture containing the carbon dioxide, comprising:
a water washing unit wherein the gas mixture is washed with water and wherein the carbon dioxide in the gas mixture is dissolved in said water producing carbon dioxide laden water,
an absorbing media made of a multiplicity of porous sorbent pebbles, each of said porous sorbent pebbles including
a sorbent pebble body made of absorbent material that absorbs carbon dioxide and
a surface layer surrounding said sorbent pebble body, said surface layer having an embedded catalyst or enzyme that speeds the uptake of carbon dioxide,
a slurry unit wherein a slurry is formed of said absorbing media and said carbon dioxide laden water wherein said embedded catalyst or enzyme and said absorbent material takes up the carbon dioxide from said carbon dioxide laden water, and
a heating unit wherein said absorbing media is heated driving off the carbon dioxide whereby said absorbing media made of porous sorbent pebbles provides separation of the carbon dioxide from the gas mixture.
4. A system for separation of carbon dioxide from a gas mixture containing the carbon dioxide, comprising:
a water washing unit wherein the gas mixture is washed with water and wherein the carbon dioxide in the gas mixture is dissolved in said water producing carbon dioxide laden water,
an absorbing media made of a multiplicity of porous sorbent pebbles, each of said porous sorbent pebbles including
a sorbent pebble body made of absorbent material that absorbs carbon dioxide and
a surface layer surrounding said sorbent pebble body, said surface layer having an attached catalyst or enzyme that speeds the uptake of carbon dioxide,
a slurry unit wherein a slurry is formed of said absorbing media and said carbon dioxide laden water wherein said attached catalyst or enzyme and said absorbent material takes up the carbon dioxide from said carbon dioxide laden water, and
a heating unit wherein said absorbing media is heated driving off the carbon dioxide whereby said absorbing media made of porous sorbent pebbles provides separation of the carbon dioxide from the gas mixture.