Process for nitrous oxide removal
AssigneeAir Products and Chemicals, Inc.
InventorsTimothy Christopher Golden, Fred William Taylor, Elizabeth Helen Salter, Mohammad Ali Kalbassi, Christopher James Raiswell
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Abstract
The present invention relates to a process and apparatus for the removal of nitrous oxide from a feed gas stream using an adsorbent having a nitrogen diffusion parameter of 0.12 sec−1 or higher and a nitrous oxide capacity of 79 mmol/g/atm or higher at 30° C.
Claims16
A process for removing water, carbon dioxide and nitrous oxide from a feed gas stream, comprising passing the feed gas stream through a first adsorbent to adsorb water, a second adsorbent to adsorb carbon dioxide and a third adsorbent to adsorb nitrous oxide and to form a purified feed gas stream, wherein the third adsorbent has a nitrogen diffusion parameter of 0.12 sec−1 or higher and a nitrous oxide capacity of 79 mmol/g/atm or higher at 30° C. and the first, second and third adsorbents may optionally be the same material.
Apparatus for removing water, carbon dioxide and nitrous oxide from a feed gas stream comprising in fluid series connection a first adsorbent to adsorb water, a second adsorbent to remove carbon dioxide and a third adsorbent to remove nitrous oxide, wherein the third adsorbent has a nitrogen diffusion parameter of 0.12 sec−1 or higher and a nitrous oxide capacity of 79 mmol/g/atm or higher at 30° C. and the first, second and third adsorbents may optionally be the same material.
A process for removing nitrous oxide from a feed gas stream, comprising passing the feed gas stream over an adsorbent having a nitrogen diffusion parameter of 0.12 sec−1 or higher and a nitrous oxide capacity of 79 mmol/g/atm or higher at 30° C.
Dependencies are inferred from the claim text.