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A novel alkylation process of benzene with syngas was successfully developed to produce toluene and xylene over a bifunctional catalyst containing zinc oxide (ZnO), zirconium oxide (ZrO2) and ZSM-5 zeolite. Different characterizations, such as: SEM, TEM, XRD, XPS, FT-IR, NH3-TPD and N2 adsorption–desorption were used to measure the structure of Zn/Zr samples. ZnO was identified as the active component...
Continuous synthesis of N-methylhomopiperazine over Cu–Cr–Mg/γ-Al2O3 has been developed. The doped Cr improves the dispersion of the Cu0 particles and inhibits the generation of CuAl2O4 so that the Cu0 particles are retained as the active sites. Doped Mg neutralizes the strong acid sites in Cu20Cr10Mg10/γ-Al2O3, and led to a decrease in coking side reactions. The reaction parameters were optimized...
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