化学工程2018，Vol.46Issue(2)：47-51,5.DOI:10.3969/j.issn.1005-9954.2018.02.010
乙醇制丙烯Zn/Hβ催化剂的积碳历程
Deactivation process on Zn/Hβ catalysts for ethanol to propylene
屈文婷 1吴洋 2李霁阳 1许磊 1王青 1张臻1
作者信息
- 1. 陕西省石油化工研究设计院化学工程所,陕西西安710054
- 2. 中化近代环保化工(西安)有限公司COF-151项目部,陕西西安710201
- 折叠
摘要
Abstract
Coke deposition on 16％ Zn/Hβ catalysts for ethanol to propylene in fixed bed reactor was studied.The physicochemical properties of these catalysts were characterized by powder X-ray diffraction (XRD),temperatureprogrammed oxidation (TPO),programmed desorption of ammonia (NH3-TPD) and N2 isotherm adsorptiondesorption (BET).Based on the obtained results,the influences of coke deposition on these catalysts were discussed.The main results show thats:the coke on 16％ Zn/Hβ catalysts might be consisted of aromatic hydrocarbon and aliphatic hydrocarbon;the strong acid sites of 16％ Zn/Hβ catalysts are responsible for the production of coke;coke mainly deposite on the active center of Hβ catalyst,changing the external surface and mouth of the catalyst,which leads to the catalytic deactivation.关键词
积碳行为/Zn/Hβ催化剂/催化剂性质/乙醇制丙烯Key words
coke/Zn/Hβ zeolite/catalyst properties/ethanol to propylene分类
化学化工引用本文复制引用
屈文婷,吴洋,李霁阳,许磊,王青,张臻..乙醇制丙烯Zn/Hβ催化剂的积碳历程[J].化学工程,2018,46(2):47-51,5.
