Zr-modified ZSM-5 zeolite was successfully prepared, and Zn/Zr-ZSM-5 was employed as a catalyst for the acetylene hydration reaction. High catalytic activity, above 96% C₂H₂ conversion, was achieved at 260 °C with a feed reactant ratio of H₂O/C₂H₄ = 4 and a GHSV of 90 h⁻¹. To understand the influence of zirconium addition in the zeolite, Fourier-transform infrared spectroscopy, X-ray diffraction, surface texture analysis (BET method), transmission electron microscopy, temperature programmed desorption of NH₃, temperature programmed reduction by hydrogen and X-ray photoelectron spectroscopy techniques were used. The incorporation of zirconium in the zeolite enhanced Zn metal dispersion and metal–support interactions. Moreover, an enhanced concentration of weak acid sites and active catalytic sites were found to be responsible for the high catalytic activity of Zn/Zr-ZSM-5 for the acetylene hydration.

成功制备了Zr改性ZSM-5沸石，并使用Zn / Zr-ZSM-5作为乙炔水合反应的催化剂。在260℃下以H ₂ O / C ₂ H ₄  ＝ 4的进料反应物比率和90h ^-1的GHSV实现了高于96％的C ₂ H ₂转化率的高催化活性。了解锆在沸石中的影响，傅立叶变换红外光谱，X射线衍射，表面织构分析（BET法），透射电子显微镜，NH _3的程序升温脱附，使用氢和X射线光电子能谱技术进行程序升温还原。沸石中掺入锆增强了锌金属的分散性和金属与载体的相互作用。此外，发现提高浓度的弱酸位点和活性催化位点是造成Zn / Zr-ZSM-5对乙炔水合反应具有高催化活性的原因。