当前位置: X-MOL 学术Catal. Commun. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Ni catalyst supported on nitrogen-doped activated carbon for selective hydrogenation of acetylene with high concentration
Catalysis Communications ( IF 3.4 ) Pub Date : 2020-11-13 , DOI: 10.1016/j.catcom.2020.106241
Zhu Xu , Shuzhen Zhou , Mingyuan Zhu

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.



中文翻译:

氮掺杂活性炭上负载的Ni催化剂用于高浓度乙炔的选择性加氢

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%。

更新日期:2020-11-26
down
wechat
bug