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A series of precipitated CuO-ZnO-Al_2O_3 catalysts for methanolsynthesis have been prepared and their catalytic activities under differentreaction conditions(temperature,pressure,space velocity)have been tested.By means of TPR,TG,the reduction behavior of typical catalyst sample andbinary sample CuO-Al_2O_3 was comparatively investigated.The resultsindicate that the autocatalysis in reduction process of Cu-based catalystcorrelates with the CuO crystallinity.
A series of precipitated CuO-ZnO-Al 2 O 3 catalysts for methanolsynthesis have been prepared and their catalytic activities under different reaction conditions (temperature, pressure, space velocity) have been tested. By means of TPR, TG, the reduction behavior of typical catalyst sample and binary sample CuO-Al 2 O 3 was comparatively investigated. The results indicate that the autocatalysis in reduction process of Cu-based catalystcorrelates with the CuO crystallinity.