Patent ID: 11958803
Assignee: CALGON CARBON CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 0:
1. A biogas purification system comprising:
a first adsorber unit comprising a first sorbent material configured to adsorb organic impurities and/or H2S;
a second adsorber unit comprising a second sorbent material configured to adsorb organic impurities and/or H2S;
a separator configured and arranged to separate biomethane from carbon dioxide operably connected to the first adsorber unit and the second adsorber by conduits configured to supply separated carbon dioxide at ambient temperature to the first adsorber unit and the second adsorber unit; and
valves operably connected to the each of the conduits and arranged to supply separated carbon dioxide at ambient temperature individually and directly from the separator to the first adsorber unit and the second adsorber unit,
wherein the first sorbent material comprises carbonaceous char.