Inventors:
James W. Reeves - Wilmington NC
Robert W. Sylvester - Wilmington DE
David F. Wells - Avondale PA
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
B01J 828, F27B 1508
Abstract:
An improved industrial multistage recirculating-fluidized-bed reactor for producing chlorine and iron oxide having an initial "dense" zone and a downstream "dilute" zone. In the dense zone, a fuel is burned, reactants and recirculated iron oxide particles are heated, ferric chloride is vaporized and at least 50% of the ferric chloride is converted to chlorine and iron oxide. In the downstream dilute zone, a solids fraction from 0. 005-0. 05 is maintained, along with a superficial gas velocity from 1. 5-6 meters/second which is from 5-25 times the superficial gas velocity in the dense zone, and the conversion of ferric chloride is continued to greater than 95% completion.