Air separation apparatus, adsorber, and method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12196486
SERIAL NO

17381404

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Abstract

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A method of purifying air via a pre-purification unit (PPU) of an air separation unit (ASU) system having a pre-PPU chiller that is upstream of the PPU to cool compressed air before the compressed air is fed to the PPU can include passing air through an adsorber of the PPU to pass the air through a bed of adsorbent material within a vessel of the adsorber. In response to the pre-PPU chiller being determined to have an issue resulting in the pre-PPU chiller being tripped or requiring the pre-PPU chiller to be taken off-line, continuing to operate the ASU system at a full capacity even though nitrous oxide (N2O) within the air output from the PPU exceeds a first pre-selected threshold and is below a second pre-selected threshold associated with carbon dioxide (CO2) breakthrough. An ASU and a PPU can be designed to implement an embodiment of the method.

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Patent Owner(s)

  • AIR PRODUCTS AND CHEMICALS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Krishnamurthy, Gowri Sellersville, US 35 108
Malik, Nasim Ul Hassan London, GB 8 23
Wu, Dingjun Macungie, US 27 3522

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