| abstract |
PURPOSE: To effectively obtain specified amount of sulfuric acid at low cost, by using an oxygen-enriched air in a sulfuric acid production equipment by incorporating the front stage of an air feeder with an oxygen-enriching device using oxygen separation membranes to reduce the amount of the gar to be reacted leading to reduction in volumes of the converter and heat exchange, etc., and decrease in operating power. n CONSTITUTION: In the sulfuric acid production process with catalytic system using, as the raw material, a gas 16 produced by combustion 1 of sulfur 15, the front stage of an air 31 feeder 10 is incorporated with an oxygen-enriching device 8 using oxygen separation membranes, and an oxygen-enriched air 33 thus produced is fed to a sulfur combustion oven 1 and/or converter 3. n COPYRIGHT: (C)1989,JPO&Japio |