The conversion of glycerol to hydroxyacetone, in gas phase and atmospheric pressure, was investigated over γ-Al₂O₃ and TiO₂ supported copper and nickel catalysts. The catalysts were prepared by co-impregnation and pre-treated with hydrogen at 450 °C. It was studied eight different catalysts at 280 °C under nitrogen atmosphere. The higher glycerol conversion and selectivity to hydroxyacetone were obtained with the monometallic Cu/γ-Al₂O₃ and Cu/TiO₂ catalysts. Furthermore, high selectivity to lactic acid was obtained over Cu/TiO₂. These catalysts were characterized by XRD, SEM, EDS, TEM, N₂-physisoption, and NH₃-TPD. Furthermore, the Cu/γ-Al₂O₃ catalyst was studied on different reaction temperature and gas flow conditions. It was obtained that the selectivity to hydroxyacetone is favors at lower temperatures. However, the catalyst suffer deactivation. Carbonaceous deposits over the used sample were not revealed by Raman and FTIR. Finally, a regeneration treatment by oxidation–reduction reactivated the Cu/γ-Al₂O₃ catalyst successfully.

甘油至羟基丙酮的转化，在气相中和大气压下，进行了调查过的γ-Al _2种ö ₃和TiO ₂负载的铜和镍催化剂。通过共浸渍制备催化剂，并在450°C下用氢气进行预处理。在氮气气氛下，在280°C下研究了八种不同的催化剂。与单金属的Cu /γ-Al系，可以获得更高的甘油转化率和选择性，以羟基丙酮₂ ö ₃和Cu /二氧化钛₂催化剂。此外，在Cu / TiO _2上获得了对乳酸的高选择性。这些催化剂通过XRD，SEM，EDS，TEM，N _2-物理选择和NH _3进行表征。-TPD。此外，在Cu /γ-Al系₂ ö ₃催化剂进行了研究在不同的反应温度和气流条件。已获得在较低温度下对羟基丙酮的选择性是有利的。但是，催化剂会失活。拉曼和FTIR并未发现使用过的样品上的碳质沉积物。最后，通过氧化-还原反应的再生处理活化在Cu /γ-Al系₂ ö ₃成功地催化剂。