造孔剂引入方式对丁二醇选择性脱水ZrO_(2)基催化剂性能的影响  

The influence of pore forming agent introduction method on the performance of ZrO_(2)based catalyst for selective dehydration of butanediol

作　　者：谷甜甜 耿蒙蒙 张志伟 王磊 GU Tiantian;GENG Mengmeng;ZHANG Zhiwei;WANG Lei(School of Chemistry and Chemical Engineering,Yantai University,Yantai 264000,Shandong,China;Lijin County Science and Technology Innovation Service Center,Dongying 257400,Shandong,China;Shandong Key Laboratory of Chemical Engineering and Processes,Yantai 264000,Shandong,China)

机构地区：[1]烟台大学化学化工学院,山东烟台264000 [2]利津县科技创新服务中心,山东东营257400 [3]山东省化学工程与过程重点实验室,山东烟台264000

出　　处：《工业催化》2025年第3期26-32,共7页Industrial Catalysis

基　　金：国家自然科学基金面上项目(22478332)。

摘　　要：在掺杂Si和La的ZrO_(2)催化剂基础上,通过不同方式引入造孔剂聚甲基丙烯酸甲酯(PMMA)调控催化剂的酸碱性以及孔性质,提高1,4-丁二醇(BDO)气相选择性脱水制备3-丁烯-1-醇催化反应的转化率和选择性。通过X射线衍射(XRD)进行物相分析,并且从傅里叶变换红外光谱(FT-IR)、NH_(3)程序升温吸附(NH_(3)-TPD)、CO_(2)程序升温吸附(CO_(2)-TPD)等表征结果可以看出,造孔剂PMMA能显著提高Si、La元素的分散程度,进而提高相应催化剂的酸碱性。N_(2)吸附-脱附曲线、扫描电镜(SEM)等表征结果可以看出,造孔剂PMMA改变了催化剂微观形貌,提高催化剂性能,尤其是溶解造孔剂得到的催化剂ZrO_(2)-DPM活性最高,使1,4-丁二醇的转化率达到85.36%,3-丁烯-1-醇选择性达到64.56%。On the basis of ZrO_(2)catalyst doped with Si and La,this article introduces the pore forming agent polymethyl methacrylate(PMMA)in different ways to regulate the acidity,alkalinity and pore properties of the catalyst,and improve the conversion and selectivity of the gas-phase selective dehydration of 1,4-butanediol(BDO)to prepare 3-buten-1-ol.Through X-ray diffraction(XRD)for phase analysis,and characterization results such as Fourier transform infrared spectroscopy(FT-IR),NH_(3) temperature programmed adsorption(NH_(3)-TPD),and CO_(2)temperature programmed adsorption(CO_(2)-TPD),it can be seen that the pore forming agent PMMA can significantly improve the dispersion of Si and La elements,thereby enhancing the acidity and alkalinity of the corresponding catalyst.At the same time,characterization results such as N_(2) physical adsorption-desorption curves and scanning electron microscopy(SEM)showed that the pore forming agent PMMA changed the microstructure of the catalyst,improved its performance,especially ZrO_(2)-DPM catalyst,and ultimately achieved a conversion of 85.36%for 1,4-butanediol and a selectivity of 64.56%for 3-buten-1-ol.

关 键 词：催化化学 3-丁烯-1-醇 气相选择性脱水 酸碱协同 造孔剂 

分 类 号：O643.36[理学—物理化学] TQ426.94[理学—化学]