调合汽油辛烷值模型

The Model for Calculating Octane Number of Blended Gasoline

详细地讨论了调合汽油辛烷值模型的研究状况及其发展过程．对非线性模型和物理化学模型进行了深入的对比分析．指出了非线性模型存在精度低，难以实现在线最优化控制，可靠性差的问题．物理化学模型利用交互关联法关联出一组独立于馏分间交互作用参数并推广至汽油调合物中，该方法的精度高，适用面广，作为生产最优化控制和提高企业效益，具有良好的应用前景，并为爆燃机理的研究开辟了新思路．

The development and present condition in the study of the model is discussed. By comparing nonlinear model with physicochemical model, it is held that the accurancy and reliability of nonlinear model all are low, and the realization of on line production optimization control is difficult by the model. In physicochemical model, a set of two composition interaction parameters between hydrocarbon compositions are gained by regression interaction method. The parameters are independent on gasoline fractions, then they are transformed into the two composition interaction parameters between gasoline fractions. Octane member of blended gasoline is determined according to the parameters between gasoline fractions. This method has high accurancy and wide applications, it has good prospects in production optimization control and increasing the benefit of enterprises, and opens a new thinking for the study of detomation mechanism.