Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Including segregation of diverse particles
Reexamination Certificate
2005-11-01
2005-11-01
Langel, Wayne A. (Department: 1754)
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Including segregation of diverse particles
C423S244010, C423S244070, C423S574100, C502S034000, C502S055000
Reexamination Certificate
active
06960548
ABSTRACT:
Process and device for regeneration of a used absorbent from a desulfurization zone or from the desulfurization of a gas containing sulfur oxides, comprising regeneration simultaneously with filtering of the absorbent, in a reducing atmosphere, wherein partial combustion of a regeneration gas is also carried out upstream from regeneration, the products of the partial combustion being mixed with the used absorbent prior to the regeneration-filtration stage. The absorbent may be, e.g., solid absorbents based on magnesium oxide. The regeneration gas may be hydrogen sulfide and/or a hydrocarbon. For example, H2S can be partially combusted and the products of the partial combustion, including H2S, H2, SO2and sulfur, mixed with the used absorbent prior to the regeneration-filtration stage.
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Lebas Etienne
Martin Gerard
Streicher Christian
Antonelli Terry Stout & Kraus LLP
Institute Francais du Petrole
Langel Wayne A.
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