Catalytic dehydration of glycerol over solid catalysts provides a sustainable and economic route to producing acrolein. Unsupported MoP catalyst was prepared by temperature-programmed-reduction method and used for the gas-phase glycerol dehydration. The catalyst was characterized by means of XRD, SEM, TEM, NH₃-TPD, Py-IR, XPS, TG-DSC, and N₂ adsorption-desorption. It is indicated that the acidic POH and MoOH groups, which are usually associated with the weak or moderate strength of Brønsted acid sites, were presented on the surface of MoP. The effects of reaction temperature and carrier gas flow rate on glycerol conversion and acrolein selectivity were investigated over MoP. The selectivity to acrolein was up to 89.0 % and kept constant in a 50-h run at 240 °C. The gradual decrease of glycerol conversion might be related to the insoluble carbonaceous materials deposited on the catalyst surface.

甘油在固体催化剂上的催化脱水为生产丙烯醛提供了一条可持续且经济的途径。采用程序升温还原法制备无负载型MoP催化剂，用于甘油气相脱水。通过XRD、SEM、TEM、NH ₃ -TPD、Py-IR、XPS、TG-DSC和N ₂吸附-脱附对催化剂进行表征。表明酸性 P OH 和 MoOH 基团通常与 Brønsted 酸位点的弱或中等强度相关，出现在 MoP 的表面。在 MoP 上研究了反应温度和载气流速对甘油转化率和丙烯醛选择性的影响。丙烯醛的选择性高达 89.0%，并在 240 °C 下运行 50 小时后保持恒定。甘油转化率的逐渐降低可能与沉积在催化剂表面的不溶性含碳材料有关。