南京工业大学学报（自然科学版）2012，Vol.34Issue(1)：24-29,6.DOI:10.3969/j.issn.1671-7627.2012.01.006
P/HZSM -5分子筛催化乙醇脱水制备乙烯
Catalytic dehydration of ethanol to ethylene over P/HZSM-5 zeolites
摘要
Abstract
A series of P/HZSM-5 zeolite catalysts were prepared by impregnation method and used in the dehydration of ethanol to ethylene. X-ray diffraction (XRD) ,N2 adsorption for specific surface area (BET) , temperature programmed desorption of ammonia (NH3-TPD) ,and 27Al nuclear magnetic resonance (27Al MAS NMR) were used to obtain the information about structure and acid properties of HZSM-5 zeolites and the effect of P content on the catalytic performance. The results indicated that the addition of phosphoric acid promoted the dealumination from framework with some extent, reduced the acid strength of catalyst, and weakened the activity of the catalyst that was beneficial to the extension of its service life. Combined with the results of NH3-TPD,it was concluded that P content of 2.0% was suitable.关键词
乙醇/脱水/乙烯/HZSM -5/磷酸Key words
ethanol/dehydration/ethylene/ HZSM-5/ phosphoric acid分类
化学化工引用本文复制引用
胡耀池,詹妮娜,章文贵,吕浩,胡燚..P/HZSM -5分子筛催化乙醇脱水制备乙烯[J].南京工业大学学报（自然科学版）,2012,34(1):24-29,6.基金项目
国家高技术研究发展计划(863计划)资助项目(2006AA020101) （863计划）
中国石油化工集团公司技术开发项目(L208007) （L208007）
江苏省基础研究计划(自然科学基金)-企业博士创新项目(SBK200930396) （自然科学基金）
