2.1. Materials
Bulk supply of SBE was sourced from 2 PORs at Pasir Gudang on a regular basis. Two types of SBE commonly used by the refineries are acid-activated SBE and natural SBE. The SBE used can be in different conditions i.e. freshly released or stored. The SBE from the refinery was discharged into a silo and directed to a closed loop system i.e. a dedicated buffer storage container placed with a quick-connect SBE transfer system to ensure spill-proof handling of SBE from refinery to haulage truck en route to the SBE recovery plant.