文献类型：期刊文献

中文题名：Y型分子筛负载磷钼酸催化脱除重整芳烃中微量烯烃

英文题名：Removal of Trace Olefins from Reforming Aromatic Hydrocarbons over Y Zeolites Loading Phospho-Molybdic Acid Catalyst

作者：曾海平[1];江正洪[1];翁惠新[1];施力[1]

机构：[1]华东理工大学石油加工所,上海200237

年份：2009

卷号：25

期号：2

起止页码：166

中文期刊名：化学反应工程与工艺

外文期刊名：Chemical Reaction Engineering and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：芳烃;烯烃;Y型分子筛;磷钼酸;烷基化

外文关键词：aromatics; olefins; Y zeolite; phospho-molybdic acid; alkylation

摘要：以Y分子筛和磷钼酸为主要活性组分,氧化铝为载体,制备了芳烃脱烯烃催化剂,考察了催化剂的焙烧温度和磷钼酸添加量对烯烃脱除效果的影响,并采用傅立叶-红外光谱(FT-IR)和X射线衍射(XRD)对催化剂进行表征。结果表明,经550℃焙烧的磷钼酸添加量为3%的分子筛催化剂具有较好的催化性能。催化剂脱烯烃活性主要取决于B酸,尤其是弱B酸的含量。催化剂失活的主要原因是分子筛表面积炭造成酸中心减少,失活催化剂经空气氧化焙烧后可恢复活性。
The catalysts for removal of the trace olefins from aromatic hydrocarbons were prepared by using phospho-molybdie acid and Y zeolite as active components and alumina as carriers. The effects of calcination temperature and phospho-molybdic acid addition on catalytic performance of Y zeolite were studied and the catalyst was characterized by means of Fourier transform infrared （FT-IR） and X-ray diffraction （XRD）. The results showed that the catalyst with phospho-molybdic acid 3% （mass fraction ） which was calcined at 550℃ exhibited good activity for removal of olefins. The activity of the catalyst was related to B acid, especially the weak B acid. The deactivation of the catalyst resulted from the coke deposit and the deactivated catalyst could recover by oxidation with air under proper temperature.