Bharat Petroleum Corporation Ltd (BPCL) plans to invest ₹6,877 crore to modernise its Mumbai refinery complex by replacing the old Catalytic Cracking Unit and Fluidised Catalytic Cracking Unit with a new, state-of-the-art Petro Resid Fluidized Catalytic Cracking Unit and associated facilities, the State-run refiner said in an application seeking environment clearance for the project.

The project facilities include a reactor and re-generator, a product separation section, treatment facilities for FG/LPG, a new sulphur recovery unit and mounded bullets. The project seeks to enhance safety, incorporate latest environmental management technologies, improve energy efficiency and product yield, BPCL said.