ENVIRONMENT

Environment and Energy

Environment, Energy, Safety and Health are given utmost priority at our Mumbai Refinery. Mumbai Refinery is certified under ISO 14001 (Environment Management System) since May 1998. It was among the first refineries in the country to form an independent Energy & Environmental Cell in the year 1962. 

Several green environmental initiatives were undertaken to minimize the impact of refinery operations on emissions, effluents and solid waste generation and disposal. Mumbai Refinery meticulously follows the limits /norms set by statutory authorities / agencies and ensures incorporation of modern / clean technologies for proper monitoring and abating the pollutants through Stack Monitoring , Ambient Monitoring Stations at various locations in the Refinery.

Some of major green initiatives taken by Mumbai Refinery are as follows:

1. Upgrading Refinery to produce clean automotive fuels
   1. Installation and commissioning of Hydrocracker unit under Refinery Modernization Project (RMP) for production of Euro IV Grade Auto Fuel product (High Speed Diesel)
   2. Installation of Diesel Hydro-desulphurization (DHDS & DHT) facilities for production of Euro IV Grade Auto Fuel product (High Speed Diesel)
   3. Installation and commissioning of CCR & ISOMERIZATION units to produce Euro IV Grade Motor spirit
   4. Installation Methyl Tertiary Butyl Ether (MTBE) Unit to replace Tetra Ethyl Lead (TEL) from motor spirit
2. Production of High Quality Group II + Lube Oil Base Stock (LOBS) for manufacturing environment friendly (ultra-low sulphur, long life) lube oils
3. Improvement in Energy Efficiency of the Refinery 
   1. High heat recovery crude preheat train systems optimized using Pinch technology
   2. Installation of cross-country multi-product pipeline (Mumbai-Manmad-Mangliya-Bijwasan pipeline) to transport petroleum products such as Motor Spirit, kerosene and High Speed Diesel thereby reducing road movement and minimizing vehicular emissions.
   3. Installation of Co-generation plant for simultaneous generation of both power and steam at high efficiency.
   4. Installation of low-NOx burners in fired heaters to reduce release of Nitrogen oxides from fired heaters.
4. Minimise / eliminate fugitive emissions through:
   1. Implementation of industry best practices like hydrocarbon leak detection & repair (LDAR) 
   2. Use of floating roof tanks with secondary seals and still well sleeve systems
   3. Installation of vapor recovery systems etc.
   4. Commissioning of Flare Gas Recovery System (FGRS)
   5. Commissioning of new 125 meter high de-mountable flare for efficient dispersal of waste gas
   6. Provision of high efficiency Sulphur Recovery Units (99 % efficiency)
   7. BPC has installed modern state of the art Waste Water Treatment Plant by M/s. Zimpro Passivant, USA to meet Minimal National Standard (MINAS)
   8. Provision of recirculating sea cooling tower system which replaced the once through sea cooling water system thereby minimizing the sea cooling requirement and effluent discharge to the sea
5. Treated effluent water recycling and re-use and rain water harvesting
6. Re-circulating sea cooling tower systems instead of once through sea cooling water system thereby minimizing the sea cooling requirement and effluent discharge to the seaRe-circulating sea cooling tower systems instead of once through sea cooling water system thereby minimizing the sea cooling requirement and effluent discharge to the sea
7. A comprehensive system for hazardous waste management has been implemented at BPCL refinery. The details of various clean technologies implemented for optimal solid waste management are given below:
   1. Mechanized oil recovery system for oil recovery from oily sludge to recover the oil from the crude tank bottom sludge.
   2. The remaining soil having low oil content is bio-remediated with the help of specialized micro-organisms based “oil zapper” technology from The Energy Research Institute (TERI), New Delhi.
   3. Spent catalysts are either recycled to the original catalyst suppliers or disposed off to secured landfill sites in accordance with the MOE&F Hazardous Waste (Management and Handling) Rules.
   4. Bio Gas plant has been installed at Mumbai refinery to convert canteen food waste into gas for use in canteen.