PROGRESS OF HYDROGEN SYSTEM OPTIMIZATION IN REFINERIES

Abstract

Abstract: Hydrogen is recognized as both a critical feedstock and a major cost component in petrochemical production. Optimization of hydrogen systems is essential for energy efficiency and cost reduction.The development of hydrogen system optimization technologies is reviewed, with focus on hydrogen pinch technology and mathematical programming methods. Hydrogen pinch technology has evolved from single-component impurity analysis to multi-component analysis,and graphical pinch analysis methods were subsequently established.Mathematical programming approaches are evolving to encompass multi-component impurity analysis and uncertainty modeling frameworks, the application scope and research depth are constantly expanding. Combining the development trends of the two methods, future research should prioritize integrating hydrogen network optimization with rigorous hydrogenation unit simulations and developing hybrid methodologies that combine pinch analysis with mathematical programming, in order to achieve rational optimization of hydrogen systems in refining enterprises.

Key words: hydrogen system optimization, pinch analysis, mathematical programming, pressure swing adsorption, nonlinear programming, purification, hydrogen source, hydrogen sink

References

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