Carbon-supported copper organic framework as active catalysts for acetylene hydrochlorination

In this work, activated carbon supported Cu-MOF was used as an acetylene hydrochlorination catalyst to manufacture vinyl chloride. Cu-MOF/AC with 15 wt. % Cu-MOF content has the initial acetylene conversion of 99.2% and vinyl chloride selectivity of 98.5% at 200 degrees C. By combining steady-state experiments and physical-chemical characterization results (XPS, BET, H-2-TPR, C2H2-TPD, XRD, and HCl adsorption experiments), Cu-O-C is shown to slow the reduction of Cu2+, improve the reactants adsorption, and strengthen the anti-coking ability of Cu-based catalysts. According to the previous studies and the Eley-Rideal mechanism, it is proposed that Cu2+ first adsorbed C2H2 to generate transition states in acetylene hydrochlorination catalysis.