Cu-Zr-Zn catalysts for methanol synthesis in a fluidized bed reactor

Ten Cu-Zr-Zn catalysts prepared by reverse coprecipitation were evaluated for use for methanol synthesis at 230–270 °C and 4 MPa. The catalysts were characterized by N2O-chemisorption, X-ray diffraction, scanning electron microscopy, and their attrition resistance and particle size distribution. The data showed that many of the catalysts had suitable activity, shape, size and mechanic strength. Catalyst stability during reaction at 260 °C for 120 h was also studied. The catalyst with the composition of Cu:Zr:Zn = 4.5:3:1.5 was optimal for methanol synthesis in a fluidized bed reactor.

Figure optionsDownload high-quality image (320 K)Download as PowerPoint slideResearch highlights▶ Cu-Zr-Zn catalyst has suitable activity, high stability and enough attrition resistance. ▶ The particle of the catalyst is well-fluidized. ▶ Cu:Zr:Zn = 4.5:3:1.5 turns out to be an optimal catalyst composition.