化工过程综合问题MINLP算法中整型变量的连续化The Integer Variables Continuation Technique Used in MINLP Problem for Chemical Process Synthesis
闫志国,钱宇,李秀喜
摘要(Abstract):
化工过程系统综合问题需要同时考虑设备结构参数和工艺操作参数,一般用整型变量表示设备的取舍,用连续变量表示操作参数,这就构成一个流程的超结构,在数学形式表现为一个混合整型非线性规划(MINLP)问题。混合整型非线性规划问题的求解成为化工过程综合优化的关键。今根据超结构中整型变量的特征,提出整型变量连续化处理的思路,将MINLP问题简化为NLP问题,然后采用罚函数法求解。最后将该算法运用于加氢脱烷基化(HDA)过程综合的实例研究,结果表明该算法克服了传统方法在处理整型变量时出现的麻烦,为有效快速地进行化工过程综合优化问题提供了一种新的途径。
关键词(KeyWords): 化工过程综合;混合整型非线性规划;超结构;加氢脱烷基化(HDA)
基金项目(Foundation): 国家自然科学基金资助项目(20376025);; 国家杰出青年基金(20225620)
作者(Author): 闫志国,钱宇,李秀喜
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