1,3-Propanediol (1,3-PDO) is a commercially valuable chemical for the production of polytrimethylene terephthalate polymers and polyurethane. In this study, the production of 1,3-PDO was investigated via aqueous phase reforming (APR) and selective hydrogenolysis of glycerol over Ni-Ca/CeO₂ catalysts synthesized by sonochemical (Us) and wet impregnation (WI) methods. The experiments were performed in a batch reactor at 20 bar, 230 ℃, and 450 rpm for 1 h. The synthesized catalysts were characterized using XRD, TEM, FESEM, BET, H₂-TPR, XPS, CO-chemisorption, and NH₃-TPD to better understand the physio-chemical and surface characteristics. The results revealed that sonochemical catalysts showed a larger surface area, smaller crystallite size, low reduction temperature and more homogenous particle distribution than wet impregnation catalysts. For both preparation methods, monometallic Ni/CeO₂ catalysts showed the highest activity, whereas Ca modification of Ni/CeO₂ catalysts significantly decreased the activity of the catalysts. The highest yield and selectivity of 1,3-PDO were 19.54% and 52.73%, respectively, using Ni/CeO₂_Us catalyst. The best catalyst was further utilized for parameters optimization study to observe the effect of varying glycerol concentration (10 to 25 vol.%), temperature (210 to 250 ℃) and pressure (10 to 30 bar) on the yield and selectivity of 1,3-PDO and glycerol conversion. The results demonstrated that the highest yield (19.54%) and selectivity (52.73%) of 1,3-PDO were obtained over 10 vol.%, 230 ℃ and 20 bar with glycerol conversion of 54.26%. This present study provides a promising and economical process of converting glycerol to 1,3-PDO, which has wide applications in the industry.

1,3-丙二醇 (1,3-PDO) 是一种具有商业价值的化学品，用于生产聚对苯二甲酸丙二醇酯聚合物和聚氨酯。在这项研究中，通过水相重整 (APR) 和甘油在通过声化学 (Us) 和湿浸渍 (WI) 方法合成的Ni-Ca/CeO ₂催化剂上的选择性氢解来研究 1,3-PDO 的生产。实验在间歇式反应器中在 20 bar、230 ℃和 450 rpm 下进行 1 h。合成的催化剂使用 XRD、TEM、FESEM、BET、H ₂ -TPR、XPS、CO 化学吸附和 NH _{3 进行}表征-TPD 以更好地了解物理化学和表面特性。结果表明，与湿浸渍催化剂相比，声化学催化剂具有更大的表面积、更小的晶粒尺寸、更低的还原温度和更均匀的颗粒分布。对于两种制备方法，单金属Ni/CeO ₂催化剂表现出最高的活性，而Ni/CeO ₂催化剂的Ca 改性显着降低了催化剂的活性。1,3-PDO 的最高产率和选择性分别为 19.54% 和 52.73%，使用 Ni/CeO ₂_我们的催化剂。进一步利用最佳催化剂进行参数优化研究，观察不同甘油浓度（10～25vol.%）、温度（210～250℃）和压力（10～30bar）对1的产率和选择性的影响， 3-PDO 和甘油转化。结果表明，1,3-PDO 在 10 vol.%、230 ℃和 20 bar 条件下的产率（19.54%）和选择性（52.73%）最高，甘油转化率为 54.26%。本研究提供了一种将甘油转化为 1,3-PDO 的有前景且经济的方法，该方法在工业中具有广泛的应用。