DE3128060

DE3128060

A catalytic contact oxidation process for producing sulfur trioxide from sulfur dioxide comprises passing a gas stream containing sulfur dioxide and oxygen in contact with solid, sulfur dioxide oxidation catalyst at an elevated temperature and at a superficial gas velocity of at least about 500 ft./...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SCARLETT, JOHN, KIRK MERRINGTON, COUNTY DURHAM, GB, NICHOLSON, NORMAN E., STOCKTON-ON-TEES, CLEVELAND, GB, PARISH, WILLIAM R., LAKELAND, FLA., US
Format: Patent
Sprache:eng
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:A catalytic contact oxidation process for producing sulfur trioxide from sulfur dioxide comprises passing a gas stream containing sulfur dioxide and oxygen in contact with solid, sulfur dioxide oxidation catalyst at an elevated temperature and at a superficial gas velocity of at least about 500 ft./min., preferably about 1500 to 2500 ft./min., wherein the oxidation catalyst is monolithic and has a plurality of gas passages providing a cross-sectional open area of at least about 50 percent for gas to flow therethrough with at least 50 gas flow passages per square inch of cross-sectional area.