学术
甲醇脱水组分对合成二甲醚催化剂性能的影响
阴丽华[1] 高志华[3] 黄伟[2]
[1]煤科学与技术教育部和山西省重点实验室,太原理工大学高级工程师,太原030024 [2]煤科学与技术教育部和山西省重点实验室,太原理工大学教授、博士生导师,太原030024 [3]煤科学与技术教育部和山西省重点实验室,太原理工大学讲师,太原030024
摘 要:
利用浸渍法和共沉淀法合成Cu／Co／TiO2甲醇合成催化剂，选取γ-Al2O3，磷酸改性γ-Al2O3，二氧化钛改性γ-Al2O3以及Hβ型分子筛作为甲醇脱水催化剂，通过XRD和TPR等表征手段对其进行了研究，考察了脱水活性组分对双功能催化剂的影响，实验结果表明，共沉淀法比浸渍法制备的催化剂易于还原；添加甲醇脱水剂后提高了Cu／Co／TiO2催化剂的分散度，使还原温度普遍降低；催化剂的物相并没有因为制备方法和添加脱水剂而改变。[著者文摘]
关 键 词:
文章出处:
《煤炭转化》-2005年28卷3期 -70-73页
栏目信息:
分 类 号:
INFLUENCE OF METHANOL DEHYDRATION COMPONENT ON CATALYTIC PERFORMANCE OF BI-FUNCTIONAL CATALYST IN DIRECT SYNTHESIS DIMETHYL ETHER
Yin LiHua;Gao ZhiHua;Huang Wei
Abstract:
Cu/Co/TiO2 catalysts which are prepared by impregnation method and co-precipitating impregnation method were used as methanol synthesis catalyst. They were mixed with γ-Al2O3, H3PO4-γ-Al2O3, TiO2-γ-Al2O3 and Hβ to prepare bi-functional catalysts. Bi-functional catalysts were characterized using TPR and XRD. The results are showed as following： Cu/Co/ TiO2 catalysts prepared by co-precipitating impregnation method are easy reduced than Cu/Co/ TiO2 catalysts prepared by impregnation method. The reduction temperature of Cu/Co/TiO2 catalysts added dehydration component decrease.
Key words:
dimethyl ether, Cu/Co/TiO2, bi-functional catalyst, methanol dehydration component, TPR
基金资助:
国家重大基础研究项目（2003CA10400）.
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