常州大学学报（自然科学版）2013，Vol.25Issue(3)：76-79,4.DOI:10.3969/j.issn.2095-0411.2013.03.019
氧化锌改性碳酸钠催化甲醇脱氢制备无水甲醛
Methanol Dehydrogenation to Formaldehyde over Zinc Oxide-Modified Sodium Carbonate
摘要
Abstract
Methanol dehydrogenation to formaldehyde was conducted in a fixed-bed flow reactor under the atmospheric pressure with sodium carbonate modified by metal oxides.The effects of catalyst composition,reaction temperature,weight hourly space velocity (WHSV) on the reaction were investigated.The catalysts were characterized by XRD,TG,and Nitrogen adsorption.The results indicated that the superior catalytic activity for methanol dehydrogenation to formaldehyde was obtained with ZnO/Na2CO3 containing 2％ ZnO prepared by mechanical grinding method.The conversion of methanol and the selectivity of formaldehyde were respectively 57.62％ and 77.84％ under the condition of wmethanol/wfeed=0.19,reaction temperature 650℃ and WHSV (methanol) 7h-1.关键词
氧化锌改性/碳酸钠/甲醇/催化脱氢/无水甲醛Key words
Zinc oxide-modified/ sodium carbonate/ Methanol/ catalytic dehydrogenation/ Anhydrous formaldehyde分类
化学化工引用本文复制引用
黄敏建,汪青松,李工,周书喜,刘天华..氧化锌改性碳酸钠催化甲醇脱氢制备无水甲醛[J].常州大学学报（自然科学版）,2013,25(3):76-79,4.基金项目
江苏省高校自然科学基金资助(08KJD150013) （08KJD150013）
