A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
128/109, 23/343,
A61L 9/01 (2006.01) A61F 5/441 (2006.01) A61M 1/00 (2006.01) B01D 53/02 (2006.01) B01D 53/86 (2006.01)
Patent
CA 1172620
ABSTRACT OF THE DISCLOSURE There is provided a process for the adsorption and catalytic decomposition f foul-smelling intestinal gases, particularly mercaptans, wherein the intestinal gases are passed through a highly specific adsorbent which, out of a mixture of water vapour, methanol, carbon monoxide and carbon dioxide and various sulfur-containing gases, part- icularly mercaptan-containing gases, catalytically decomposes and adsorbs only the sulfur and mercaptan compounds and optionally desorbs the non-smelling fractions. An absorbent for use in the method is characterised in that it contains an inert, highly porous solid having a specific surface according to BET of from 900 to 1800 m2/g or pyrogenic silicon dioxide having a surface of from 50 to 500 m2/g, the specific surfaces having been determined by argon adsorption at -196°C, which are covered over their surface with from 0.1 to 53 by weight of aluminium, zinc, chromium or iron, based on the weight of the solid having a specific surface of 1000 m2/g, or a mixture of metal-coated, inert highly-porous solids of this type.
374532
Chmiel Horst
Hellwig Gunter
Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung
Mcfadden Fincham
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