[1]聂文杰,张 蕾,沙响玲.NiO/γ-Al2O3单金属催化剂的制备及脱硫性能研究[J].西安科技大学学报,2016,(05):675-679.[doi:10.13800/j.cnki.xakjdxxb.2016.0511]
 NIE Wen-jie,ZHANG Lei,SHA Xiang-ling.Preparation of NiO/γ-Al2O3 catalyst and its desulfurization performance[J].Journal of Xi'an University of Science and Technology,2016,(05):675-679.[doi:10.13800/j.cnki.xakjdxxb.2016.0511]
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NiO/γ-Al2O3单金属催化剂的制备及脱硫性能研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2016年05期
页码:
675-679
栏目:
出版日期:
2016-09-30

文章信息/Info

Title:
Preparation of NiO/γ-Al2O3 catalyst and its desulfurization performance
文章编号:
1672-9315(2016)05-0675-05
作者:
聂文杰张 蕾沙响玲
西安科技大学 地质与环境学院,陕西 西安 710054
Author(s):
NIE Wen-jieZHANG LeiSHA Xiang-ling
College of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China
关键词:
NiO/γ-Al2O3 烟气脱硫 单金属催化剂
Keywords:
NiO/γ-Al2O3 flue gas desulfurization monometallic catalyst
分类号:
X 701
DOI:
10.13800/j.cnki.xakjdxxb.2016.0511
文献标志码:
A
摘要:
采用等体积浸渍的方法,以γ-Al2O3为载体,通过改变柠檬酸的浓度制备出不同结构的NiO/γ-Al2O3单金属催化剂(蛋壳型、蛋清型、蛋黄型)。研究NiO的负载量、焙烧温度和焙烧时间对催化剂脱硫性能的影响,确定NiO/γ-Al2O3负载型催化剂的最佳制备工艺。结果表明:蛋壳、蛋清、蛋黄型3种催化剂因其内部结构的不同,导致在脱硫反应过程中烟气与催化剂活性组分的接触面积、接触时间不同而对催化剂脱硫性能产生较大影响; 负载型催化剂的脱硫性能随着金属负载量、焙烧温度和焙烧时间的改变表现出不同的脱硫效果; NiO/γ-Al2O3单金属催化剂的最佳制备条件为:NiO负载量8%,焙烧温度400 ℃,焙烧时间4 h,此时催化剂的孔隙结构以及活性组分的含量对脱硫反应最有利。
Abstract:
This paper used an equal volume impregnation method,introduced γ-Al2O3 as carriers prepared different structure NiO/γ-Al2O3 catalyst(egg yolk,egg white,egg shell).And by changing the concentration of citric acid researched the effect on the flue gas desulfurization with different NiO loading,the calcination temperature and the calcinations time.Then selected the most optimal NiO/γ-Al2O3 preparation technology.The experimental results showed that: There are three kinds of catalysts Eggshell,egg whites and eggs yolks with different desulfurization performance due to the different internal structure,which lead to flue gas and catalyst activity group contact area and contact timeproduced great influence on the catalysts in the desulfurization process; desulfurization varies with the metal loading,calcinations temperature and time change; the optimum preparation conditions of monometallic catalyst is that the amount of 8% NiO,and the most suitable calcinations temperature is 400 ℃,the most suitable calcinations time is 4 h,which is most favorable for the desulfurization reaction because of the pore structure of the catalyst and the content of the active component.

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备注/Memo

备注/Memo:
收稿日期:2016-05-10 责任编辑:李克永
基金项目:国土资源部煤炭资源勘察与综合利用重点实验室开放课题资助项目(KF2015-1); 西安科技大学教育教学改革与研究(JG1244); 陕西省教育厅专项科研计划项目(11JK0788)
通讯作者:聂文杰(1981-),男,河南项城人,工程师,博士研究生,E-mail:nwj@xust.edu.cn
更新日期/Last Update: 2015-10-30