摘要
化工产业中涉及的催化剂组合选择对产物产量具有巨大影响。为更好地在乙醇催化偶合制备C_(4)烯烃的教学实验中研究选择合适的催化剂优化组合方式,基于相关系数分析、灰色相关性分析、逐步回归思想和通用全局优化算法建立催化剂组合选择模型。模型考虑温度、Co负载率、羟基磷灰石(HAP)、Co/SiO_(2)和HAP装料比等因素。基于实际生产实验数据,运用广义遍历优先搜索、最小二乘法和优化模型进行求解,得到在一定条件下使得乙醇转化率、C_(4)烯烃收率达到最优的催化剂组合。研究表明,在不限制温度上限时,两种装料方式C_(4)烯烃收率分别为46.78%和40.44%。在限制温度上限为350℃时,C_(4)烯烃收率分别为19.80%和5.77%。
The choice of catalyst combinations involved in the chemical industry has a huge impact on the product yield.In order to better investigate the selection of the appropriate catalyst optimization combination in the teaching experiments for the preparation of C_(4)olefins by catalytic coupling of ethanol,a catalyst combination selection model was developed based on correlation coefficient analysis,gray correlation analysis,stepwise regression idea and generalized global optimization algorithm.The model considered temperature,Co loading rate,hydroxyapatite(HAP),Co/SiO_(2)and HAP loading ratio.Based on the actual production experimental data,the catalyst combination that maximizes the ethanol conversion and C_(4)olefin yield under certain conditions was obtained by applying generalized traversal priority search,least squares and optimization model.It was shown that the C_(4)olefin yields are 46.78%and 40.44%for the two loading methods without limiting the upper temperature limit,respectively.At the limiting temperature limit of 350℃,the C_(4)olefin yields were 19.80%and 5.77%,respectively.
作者
黄昊翀
张钦奕
范梦超
张智韦
孙楠
郑志远
HUANG Hao-chong;ZHANG Qin-yi;FAN Meng-chao;ZHANG Zhi-wei;SUN Nan;ZHENG Zhi-yuan(School of Science,China University of Geosciences(Beijing),Beijing 100083,China;School of Information Engineering,China University of Geosciences(Beijing),Beijing 100083,China;School of Engineering and Technology,China University of Geosciences(Beijing),Beijing 100083,China)
出处
《科学技术与工程》
北大核心
2023年第9期3633-3640,共8页
Science Technology and Engineering
基金
国家自然科学基金(61805214)
学科发展研究基金(2022XK217)
中央高校基本科研业务费(2652022203,2652019107,2652020032)
国家级大学生创新创业项目(202211415086)
北京市科协青年人才托举工程项目(2020-2022)
中国地质大学(北京)2022年实验技术研究与应用项目(640121006)
中国地质大学(北京)2021年度优秀基层教学组织建设项目(JCJXZZ202108)。
关键词
相关性分析
多元非线性拟合
催化剂组合方式
乙醇偶合
correlation analysis
multivariate nonlinear fitting
catalyst combination method
ethanol coupling
