Abstract: The design of a recent ethylene project adopted the philosophy of refining-petrochemical integration was introduced. This design concept was applied throughout all aspects of the project, such as optimizing process configuration, general site layout plan, design of utility island, auxiliary facilities, information management system and so on. In particular, the utility island was built around a POx/ steam power CO-GEN unit to supply partial hydrogen, steam, and electricity demand of the plant. This design is the first of its kind in any existing domestic refineries and petrochemical complexes. The successful application of the design concept helps cut project CAPEX, lower production cost and minimizing investment risk. In addition, the integrated utility island design was a technology breakthrough and innovation for domestic petrochemical industry.

Key words: oil refining, chemical engineering, integration, project