The Process Design Division of EIL has developed a number of commercially successful process technologies in Refinery Gas processing & Petrochemical areas alongwith EIL's R&D Centre, operating companies & National Laboratories.

EIL uses State-of-the-art process simulation software packages to develop process flowsheets and heat & material balances. For design & graphic work, EIL uses both Autocad & Intergraph environment. Design & engineering is carried out on distributed computing facilities connected in a Local Area Network. Supported by a strong Heat & Mass Transfer equipment group, EIL Process Design Division also provides services for yield and energy optimisation in process plants. In-house capabilities are further enhanced by membership of widely recognised institutes like PSRI, Standford Research Institute, Fractionation Research Institute etc. The strong base of EIL in process design and engineering has resulted in EIL offering basic engineering based on its own know-how, licensed know-how & even based on just catalyst information.