Refinery-wide production planning model, including process system and utility system, is an effective approach to maximize marginal profits and to improve energy efficiency.

Based on the pinch analysis of energy integration of individual processes, the pinch analysis method by considering the energy integration of utility system and processes was improved.

Refinery-wide production planning model, including process system and utility system, is an effective approach to maximize marginal profits and to improve energy efficiency.

The paper carries out analyses of technology,operation index,installation and its arrangement,material and public project consumption of NISSAN concentration craft and Swenson.

This paper analyzes in detail the failures of various public project pipelines in chemical plant.

New method to determine temperature difference for utility pinch;

The Classification of Cold and Hot Stream Match and Its Relationship with Utility;

A novel approach to the integration of production planning and energy system was represented,by which not only a real global optimization was obtained,but also the defects in the price of the intermediates,such as steam with different pressures,gas,etc,between production and utility could be overcome.

Research and Implementation of Public Engineering Information System Based on the .NET and OPC Technology;