碳中和目标下生物基化学品合成实验设计  

Experimental Design of Biochemicals Synthesis Based on Carbon Neutrality Targets

作　　者：夏薇 黄娅新 马超 王雪 李双双 陈坤 XIA Wei;HUANG Yaxin;MA Chao;WANG Xue;LI Shuangshuang;CHEN Kun(College of Chemical Engineering,China University of Petroleum(East China),Qingdao 266580,Shandong,China)

机构地区：[1]中国石油大学(华东)化学工程学院,山东青岛266580

出　　处：《实验室研究与探索》2023年第3期181-185,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(21978327);中央高校基本科研业务费专项基金(19CX02037A);中国石油大学化学工程学院教学改革项目(YJ-K202003);中国石油大学(华东)探究性实验教学改革项目(202105)。

摘　　要：基于碳中和目标,围绕生物基化学品前沿领域设计了生物乙醇制备低碳烯烃综合性教学实验。实验系统评价了HZSM-5、HLEV、HFER 3种分子筛进行乙醇转化催化反应性能,在以HZSM-5为催化剂实验的8 h内,乙烯的收率从35%逐渐增加,丙烯和C4烯烃的选择性约为20%和17%,具有较好的催化活性和稳定性,因此更适合于乙醇制备低碳烯烃的反应。利用密度泛函理论研究了乙醇及低碳烯烃在不同分子筛上的吸附,乙醇在HZSM-5上吸附的稳定性较好,HLEV分子筛有利于乙烯的生成,HFER分子筛有利于丙烯的生成。将“双碳”思政教育和教师的科研项目融入实验设计,使学生既能学习实验的基本技能和模拟计算方法,又能参与教师的科研项目研究,进而为实现我国碳中和战略目标贡献力量。Based on carbon neutrality goals,a comprehensive teaching experiment on the production of light olefins from bioethanol was designed around the cutting-edge field of bio-based chemicals.The experiment systematically evaluates the catalytic performance of three catalysts,HZSM-5,HLEV,and HFER.Within 8 h of the experiment on HZSM-5,the yield of ethylene gradually increases from 35%,and the selectivity of propylene and C4 olefins is about 20%and 17%,respectiveely.HZSM-5 catalyst shows better catalytic activity and stability,so it is more suitable for the reaction of ethanol to light olefins.Density functional theory is used to study the adsorption of ethanol and light olefins on different zeolite catalysts.The adsorption stability of ethanol on HZSM-5 is better,HLEV is beneficial to ethylene production,while HFER is conducive to propylene production.By integrating carbon neutrality ideological and political education and scientific research project into the experimental design,students can not only learn the basic skills of experiments and simulation calculation methods,but also participate in the research of professors’scientific researches,thereby contributing to our country’s carbon neutrality strategic goals.

关 键 词：碳中和 生物乙醇 低碳烯烃 分子筛 密度泛函理论 综合性实验 

分 类 号：G642[文化科学—高等教育学] TQ426.94[文化科学—教育学]