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US 11,958,803 B2Granted
Method for inerting activated carbon in biogas purification equipment
AssigneeCalgon Carbon Corporation
InventorsFranck Michel Honore, Thomas Anthony Ryan
Life of this patent
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Abstract
Various embodiments of the present invention are directed to methods of preparing a biogas purification system. Embodiments include flushing an adsorber with a gas stream that is separable by the downstream biogas purification process. Other embodiments include using the separable gas stream to flush a saturated adsorber. Additional embodiments include using a gas stream comprised of CO2.
Claims6
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.
3 more elements
Dependencies are inferred from the claim text.