Effect of Reaction Furnace and Converter ...

The modified Claus process is commonly used in oil refining and gas processing to recover sulfur and destroy contaminants formed in upstream processing. In oil refining, in addition to the typical modified Claus plant feed, i.e. H2S and CO2, NH3, CS2, and COS are also often present or formed. These contaminants pose a risk of poisoning the catalyst beds, as well decreasing the overall sulfur recovery. In this paper, effect of reaction furnace and converter temperatures on performance of SRUs is described. Then, the common ways for adjusting these important parameters are presented for a typical sulfur recovery unit. The achieved results can be useful for designing the new Claus sulfur recovery units.