In order to enhance the scientificity of making the product blending plan of refineries, the article created the nonlinear programming (NLP) models of the product blending optimization problems.

• 为了提高炼油厂制定成品油调合方案的科学性,研究建立成品油调合优化问题的非线性规划模型。首先从不同的层次,分析提出炼油厂成品油调合工作的三类优化问题;