SegaFlix Pre-HDS BioCatalyst

Pre-Hydrodesulphurization (Pre-HDS) is a refining process that removes sulphur from petroleum feedstocks before they undergo further processing, such as catalytic cracking or hydrocracking. It operates at a pressure of 760 mmHg (1 atm) and utilizes a liquid catalyst to break down sulphur compounds. By reducing sulphur content early in the refining process, Pre-HDS enhances the efficiency of downstream units, protects catalysts from deactivation, and ensures compliance with environmental regulations.

HDS vs Pre-HDS

Test Result

After the catalytic treatment and distillation process, the sulphur content in the distillate product will be reduced by up to 49%, while most of the sulphur will remain in the distillation residue. The distillate product is easier to treat with a hydrodesulfurization unit.

Sulphur content in distillate before and after catalytic treatment