摘要
丙烯醛水合制备3-羟基丙醛,是丙烯醛水合-加氢制备1,3-丙二醇反应过程中的关键步骤。传统水合反应需要在酸性均相催化体系中进行;然而,液体酸均相催化体系对反应器腐蚀严重,废液排放易对环境造成污染,且催化剂难以回收并重复利用。基于此,开发高性能固体酸催化剂,并高效催化丙烯醛水合生成3-羟基丙醛具有重要意义。本研究设计并制备了一种具有Bronsted酸性位点的催化剂用于丙烯醛水合反应合成3-羟基丙醛,并采用PXRD、FT-IR、NH3-TPD、SEM、TGA等对催化剂进行了分析表征;发现该催化剂具有较强的酸强度、热稳定性和化学稳定性高,且对丙烯醛水合反应具有优异的催化性能。
The preparation of 3-hydroxypropanal through the hydration of acrolein is a key step in the process of the hydration-hydrogenation of acrolein to prepare 1,3-propanediol.The traditional hydration reaction needs to be carried out in an acidic homogeneous catalytic system.However,the liquid acid homogeneous catalytic system has serious corrosion to the reactor,the waste liquid discharge is easy to pollute the environment,and the catalyst is difficult to recover and reuse.Therefore,it is of great significance to develop high-performance solid acid catalysts for efficiently catalyzing the hydration of acrolein to produce 3-hydroxypropanal.In this study,a catalyst with Br?nsted acid site was designed and prepared for the synthesis of 3-hydroxypropanal from acrolein hydration reaction,and the catalyst was characterized by PXRD,FT-IR,NH3-TPD,SEM,TGA,etc.It is found that the catalyst has strong acid site strength,high thermal stability and chemical stability,and has excellent catalytic performance for the hydration of acrolein.
作者
武雁鹏
高艳
刘志琴
王福善
梁锦华
董正平
Wu Yanpeng;Gao Yan;Liu Zhiqin;Wang Fushan;Liang Jinhua;Dong Zhengping(College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China;PetroChina,Lanzhou Petrochemical Company,Lanzhou 730000,China)
出处
《广东化工》
CAS
2024年第22期14-16,共3页
Guangdong Chemical Industry
基金
兰州市科技计划项目(2023-1-2)。
