中国石油大学学报（自然科学版）2011，Vol.35Issue(3)：154-162,9.DOI:10.3969/j.issn.1673-5005.2011.03.031
磷改性HZSM-5上甘油气相脱水制备丙烯醛
Preparation of acrolein from gas-phase dehydration of glycerol on phosphorous-modified HZSM-5
谷云磊 1石孝刚 1崔秋凯 1李春义2
作者信息
- 1. 中国石油大学重质油国家重点实验室,山东,青岛,266555
- 2. 中国石油天然气股份有限公司大港石化公司,天津,300280
- 折叠
摘要
Abstract
Shaped catalysts based on HZSM-5 were prepared by using kaolin clay as support and silica sol or alumina gel as binder, which were then used to catalyze the dehydration of glycerol and to prepare acrolein. The results show that silica sol is superior to alumina gel as binder. Shaped catalyst based on phosphorous-modified HZSM-5 shows excellent mechanical strength and hydrothermal stability and good catalytic performance for the dehydration of glycerol after hydrothermal treatment. Approximately 44％ selectivity of acrolein at almost full conversion of glycerol was obtained at 350 ℃ by using 50％glycerol aqueous solution as feed, which is better than any other result ever published for a zeolite catalyst. The formation of coke in the channel of zeolite is the main cause for the rapid deactivation of catalysts.关键词
甘油/脱水/丙烯醛/磷酸/HZSM-5分子筛Key words
glycerol/ dehydration/ acrolein/ phosphoric acid/ HZSM-5 zeolite分类
能源科技引用本文复制引用
谷云磊,石孝刚,崔秋凯,李春义..磷改性HZSM-5上甘油气相脱水制备丙烯醛[J].中国石油大学学报（自然科学版）,2011,35(3):154-162,9.
