Claus Process Catalysts
Catalysts play a key role in the Claus process, enabling and enhancing the chemical transformation of hydrogen sulfide (H2S) into elemental sulfur.
Catalyst Properties and Application
- Activated alumina catalyst
- High resistance against poisoning
- Operating temperature between 190-350 °C
- Inlet of H2S and SO2 in 2:1 ratio
(2 H2S + SO2 → 3 S + 2 H2O) - High porosity for high sulfur recovery
- Sulfur recovery units in natural gas processing,
refineries and gas treatment - Typical sulfur recovery for a 2-stage reactor setup >93%
Catalyst Properties and Application
- Titania promoted alumina catalyst
- Designed for higher COS/ CS2 hydrolysis
Catalyst Properties and Application
- Titania based Claus catalyst
- Specialized formulation for COS/ CS2 hydrolysis
Catalyst Properties and Application
- Iron promoted alumina catalyst
- Designed to protect Claus catalysts from oxygen poisoning
- Oxygen creates sulfates, that block catalyst pores and lower activity
