工艺条件对钯系催化剂乙炔选择性加氢性能的影响  

Effect of the Process Conditions on the Performance of Selective Hydrogenation of Pd Catalyst

作　　者：苟尕莲 邹欣 付含琦[1] 车春霞[1] 韩伟[1] 蔡小霞[1] 梁玉龙[1] 张峰[1] 

机构地区：[1]中国石油天然气股份有限公司兰州化工研究中心,甘肃兰州730060 [2]石化有限责任公司,四川成都611900

出　　处：《当代化工》2017年第1期28-30,34,共4页Contemporary Chemical Industry

摘　　要：为了研究工艺条件对钯系催化剂选择性加氢性能的影响,制备Pd/Al_2O_3、Pd-Ag/Al_2O_3和Pd-Ag/Al_2O_3-KOH催化剂,并在微型催化剂评价装置上进行乙炔选择性加氢反应,考察了工艺条件(压力、空速)对催化剂性能的影响。结果表明,随着压力的升高,催化剂活性提高,乙烯选择性会下降;随着空速的提高,催化剂乙炔转化率先升高后降低,MAPD转化率迅速下降,乙烯选择性提高。In order to study the effect of the process conditions on the performance of selective hydrogenation of Pd catalyst, Pd/Al_2O_3, Pd-Ag/Al_2O_3 and Pd-Ag/Al_2O_3-KOH catalysts were prepared, and they were evaluated in micro catalyst evaluation device for the selective hydrogenation of acetylene. The effect of reaction conditions including pressure and space velocity on catalyst performance was studied. The results show that, with increasing of the pressure,the activity of the catalyst increases and the selectivity of ethylene decreases; with increasing of the space velocity,acetylene conversion rate decreases at first and then increases, MAPD conversion rate decreases rapidly,and ethylene selectivity increases.

关 键 词：工艺条件 钯 催化剂 选择加氢 

分 类 号：TQ426[化学工程]