Abstract: The development and commercial application of LS-981 catalyst, a new multifunction sulfur recovery catalyst, were introduced. LS-981 catalyst possessed high Claus reaction activity, high CS2 hydrolysis activity, good oxygen removal activity and excellent structure stability. LS-981 catalyst was applied in the 4 kt/a sulfur recovery unit of SINOPEC Shengli Petrochemical Complex successfully. The application results showed that LS-981 catalyst could process hydrocarbon containing sour gas, the total sulfur conversion over LS-981 catalyst was more than 96%, CS2 hydrolysis rate was over 90% and the operation cycle of the unit was prolonged.

Key words: Multifunctional, Sulfur recovery, Catalyst, Preparation, Commercial application