摘要
采用完全液相法制备了Cu/Zn/Al浆状催化剂,考察了钾助剂的加入对催化剂结构和性能的影响,采用X射线粉末衍射、氮吸附和程序升温还原对其进行了表征。结果表明,硝酸钾的加入可以减小Cu0晶粒度,改变催化剂各组分之间的相互作用,提高催化剂的活性;乙酸钾的加入可以使催化剂有较高的醇选择性。
Cu/Zn/Al slurry catalysts were prepared by complete liquid-phase technology, and the effects of adding K via different K sources on the structure and performance of the catalysts were investigated. The as-prepared catalysts were characterized by XRD, N2 adsorption and H2-TPR. The results showed that using potassium nitrate as K source could lead to smaller Cu^0 crystalline size in the catalyst, change the interaction between catalyst components and increase the activity of catalyst, while, using potassium acetate as K source could make the catalyst have a higher selectivity of alcohols.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
2014年第6期39-43,共5页
Natural Gas Chemical Industry
基金
国家自然科学基金重点项目(21336006)
国家自然科学基金面上项目(21176176)
高等学校博士学科点专项(优先发展领域)(20111402130002)
关键词
Cu/Zn/Al催化剂
完全液相法
钾助剂
低碳醇
合成
Cu/Zn/Al catalyst
complete liquid-phase technology
potassium promoter
higher alcohol
synthesis
