Ethylene is a widely used industrial raw material. Due to petroleum resources shortage, direct hydrogenation of acetylene by calcium carbide to ethylene has attracted much attention. Accordingly, Ni/AC-N-x catalyst was synthesized by a simple impregnation method to investigate how the support's N-content influenced the catalyst performance. We studied the support-metal interactions by temperature-programmed reduction and X-ray photoelectron spectroscopy and the changes were studied. The acetylene conversion remained at ~96% for 10 h at 200 °C under a high gas hourly space velocity of 4000 mL·g⁻¹·h⁻¹ over Ni/AC-N-0.5 while over Ni/AC, the acetylene conversion decreased to 29% in 10 h.

乙烯是一种广泛使用的工业原料。由于石油资源短缺，电石将乙炔直接氢化为乙烯备受关注。因此，通过简单的浸渍方法合成了Ni / AC-Nx催化剂，以研究载体的N含量如何影响催化剂的性能。我们通过程序升温还原和X射线光电子能谱研究了载体与金属的相互作用，并研究了其变化。在Ni / AC-N-0.5上以4000 mL·g ^-1 ·h ^-1的高气体时空速度在200°C下乙炔转化率在〜96％的条件下保持10小时，而在Ni / AC之上，乙炔转化率在10小时内下降到29％。