Field operator Fluidized Catalytic Cracking Unit (FCCU) for Reactor and regenerator unit at Hengyuan Refining Company Berhad (formerly know as Shell Refining Company (FOM) Berhad)Field operator Fluidized Catalytic Cracking Unit (FCCU) for Reactor and regenerator unit at Hengyuan Refining Company Berhad (formerly know as Shell Refining Company (FOM) Berhad)