Fluidized bed Claus reactor studies

✍ Scribed by A.K. Bonsu; A. Meisen

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 949 KB
• Volume: 40
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(85)85044-2

✦ Synopsis

Fluidized bed studies have been performed on the Claus reaction to determine whether the conversion efficiency of the Clans pr-could be improved by replacing conventional tied bed reactors with fluidixed bed reactors. Various idealized Claus plants, incorporating fluid&d bed technology, were simulated using the equilibrium constant method. The results of the simulation indited that, for feed v consisting of pure H,S, sulphur conversions in excess of 99 0A are attainable by using a Claus furnace and two fiuidized bed reactors in series. To substantiate the theoretical predictions, experimental studies were performed using a sin8le fluidized bed reactor (0.1 m I.D.) containing Raiser alumina S-501 catalyst. The effects of temperature (ISO-3oO°C), flow rates (15-301 mii-'). feed composition (OX85 -z H,S -z 18%. 0.03 < SO, < 9%, 73 -z N, < 99.91%) and bed height (0.12.0.25m) on the sulphur conversion were examined. The experimental results showed the same general trends as the theoretical predictions but the measured sulphur conversions exceed the theoretical values by up to 8 %.