Quality Control of the Crude Gasoline Endpoint in Fractionator

This paper analyzes technological process of the main fractionator, and takes improvement of product quality as the control target. The control algorithm based on chain system is brought forward. Two major factors which affect quality of the crude gasoline endpoint are found out. It builds a chain system model that is made up of two related chains and designs the prediction algorithm and the chain control system for the crude gasoline endpoint of the main fractionator. The simulation indicates that the designed chain system model, not only enhances the quality control, but also achieves the purpose of smooth operation, the edge of control, and improves economic benefit of the FCCU.