Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Molecular oxygen or ozone component
Patent
1988-06-24
1989-09-26
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Molecular oxygen or ozone component
423230, 423247, 423262, C01B 1300
Patent
active
048698830
ABSTRACT:
The present invention relates to a three stage process using copper, copper oxide and molecular sieve adsorbent beds for the sequential removal of oxygen, hydrogen, carbon monoxide, carbon dioxide and water from an inert feed gas. The process is especially suited to the purification of nitrogen gas from an air separation plant, which can be purified from a contaminant level of 30 vppm oxygen+carbon monoxide+hydrogen to less than 10 vppb each of oxygen, carbon monoxide, hydrogen, carbon dioxide and water, without the addition of hydrogen or another reducing gas to the process.
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patent: 4579723 (1986-04-01), Weltmer et al.
patent: 4713224 (1987-12-01), Tamhankar et al.
Kleinberg William T.
Thorogood Robert M.
Air Products and Chemicals Inc.
Heller Gregory A.
Jones II Willard
Marsh William F.
Simmons James C.
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