Sorbent compositions, systems, and methods
AssigneeGE Infrastructure Technology LLC
InventorsSubhadip Goswami, Alexandra Antonio, Maya Chaaban, Mark D. Doherty, Paul Burchell Glaser, Robert Edgar Colborn, Michael Joseph O'Brien, Xiaolei Shi, Jie Jerry Liu, David Roger Moore
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Abstract
Described herein are solid sorbents including amines that are covalently bonded to a porous support. The solid sorbents exhibit high adsorption capacities for carbon dioxide. The solid sorbents exhibit desirable hydrothermal and cycling stability.
Claims20
A functionalized sorbent comprising a sorbent and at least one functionalization ligand covalently bonded to the sorbent,
- wherein the functionalization ligand comprises a first amine-containing unit, and
- wherein the first amine-containing unit is formed by a process comprising amine alkylation between an alkyl halide and a second amine-containing unit.
A method of making a functionalized sorbent comprising a sorbent and at least one functionalization ligand covalently bonded to the sorbent, wherein the functionalization ligand comprises a first amine-containing unit, the method comprising:
- forming a first mixture comprising:
- the sorbent;
- and
- a grafter comprising an alkoxysilane-containing unit and an alkyl halide-containing unit;
- reacting the first mixture in a silanization reaction to form a grafted sorbent comprising the grafter attached to the sorbent;
- forming a second mixture comprising:
- the grafted sorbent;
- and
- a second amine-containing unit;
- and
- reacting the second mixture in an amine alkylation reaction to form the functionalized sorbent.
A method of making a functionalized sorbent comprising a sorbent and at least one functionalization ligand covalently bonded to the sorbent, wherein the functionalization ligand comprises a first amine-containing unit, the method comprising:
- forming a first mixture comprising:
- a grafter comprising an alkoxysilane-containing unit and an alkyl halide-containing unit;
- and
- a second amine-containing unit;
- reacting the first mixture in an amine alkylation reaction to form a functionalized grafter;
- forming a second mixture comprising:
- the functionalized grafter;
- and
- the sorbent;
- and
- reacting the second mixture in a silanization reaction to form the functionalized sorbent.
A method of making a functionalized sorbent comprising a sorbent and at least one functionalization ligand covalently bonded to the sorbent, wherein the functionalization ligand comprises a first amine-containing unit, the method comprising:
- forming a first mixture comprising:
- the sorbent;
- and
- a grafter comprising an alkoxysilane-containing unit and a third amine-containing unit;
- reacting the first mixture in a silanization reaction to form a grafted sorbent comprising the grafter attached to the sorbent;
- forming a second mixture comprising:
- the grafted sorbent;
- and
- a coupler comprising at least two alkyl halide-containing units;
- reacting the second mixture in an amine alkylation reaction to form a multiplier comprising at least one alkyl halide-containing unit;
- forming a third mixture comprising:
- the multiplier;
- and
- a second amine-containing unit;
- and
- reacting the third mixture in an amine alkylation reaction to form the functionalized sorbent.
Dependencies are inferred from the claim text.