Hydrophobic CO2 hydrogenation catalyst as well as preparation method and application thereof

• Main Authors: GAO TENGFEI, GU YONGZHENG, GAO YUNFANG, XUN ZHIWEI, LI SHUIFEI, HUANG YAN, XU DONG, ZHU JIANGTAO, WANG GUIWEN, YANG LONG
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a hydrophobic CO2 hydrogenation catalyst and a preparation method and application thereof, the preparation method comprises the following steps: mixing a metal source, thiourea and water for reaction, and adding a surfactant and polytetrafluoroethylene into the raw material mixture; drying and calcining the solid obtained by the reaction; the metal source includes a salt of a transition metal including Cu, Ce, Zn, and Zr. The hydrophobic CO2 hydrogenation catalyst disclosed by the invention has hydrophobicity, can ensure that the catalyst has good resistance to water under a high-humidity reaction condition, has a good protection effect on the catalyst, has relatively good catalytic performance and performance stability, and is high in CO2 conversion rate and methanol selectivity. 本公开涉及一种疏水型CO2加氢催化剂及其制备方法与应用，所述制备方法包括如下步骤：将金属源、硫脲与水混合进行反应，其中原料混合物中还加入表面活性剂和聚四氟乙烯；使反应所得的固体物进行干燥和煅烧；所述金属源包括过渡金属的盐，所述过渡金属包括Cu、Ce、Zn和Zr。本公开的疏水型CO2加氢催化剂具有疏水性，可确保催化剂在高湿反应条件下对水具有很好的抗性，对催化剂起到很好的保护作用，该疏水型CO2加氢催化剂具有较好的