摘要
以C_(18)烷烃临氢脱氢反应为探针,考察原料中卤代烃对催化剂活性、稳定性和选择性的影响。结果表明,微量卤代烃的存在降低催化剂的脱氢反应活性,催化剂的稳定性也明显下降,副产物含量增多,选择性下降。原料中卤代烃质量分数应<0.5%。
The effects of alkyl halides on the behaviors of Pt-Sn-K/γ-Al2O3 dehydrogenation catalysts were investigated using dehydrogenation of n-octadecane as the probe reaction. The results showed that trace alkyl halides in the reactants lowered dehydrogenation activity of the catalysts, with remarkably declined stability, declined selectivity and increased by-products. The amount of alkyl-halides in the feed should be less than 0.5%.
出处
《工业催化》
CAS
2009年第5期41-44,共4页
Industrial Catalysis
