DICP OpenIR
学科主题物理化学
The sintering of Ni/Al2O3 methanation catalyst for substitute natural gas production
Bai, Xiaobo1,2; Wang, Sheng1; Sun, Tianjun1; Wang, Shudong1; Wang SD(王树东)
关键词Methanation Catalyst Sintering Co-precipitation Substitute Natural Gas
刊名REACTION KINETICS MECHANISMS AND CATALYSIS
2014-08-01
DOI10.1007/s11144-014-0700-8
112期:2页:437-451
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]STEAM-REFORMING CATALYSTS ; ALUMINA-SUPPORTED NICKEL ; TEMPERATURE ; DEACTIVATION ; PRECURSORS ; REDUCTION ; STABILITY ; REACTOR
英文摘要The sintering behavior of a co-precipitated Ni/Al2O3 methanation catalyst is studied by investigating the effect of treating time, temperature and atmosphere. Fresh and sintered samples are characterized by N-2 physisorption, H-2 chemisorption, temperature programmed reduction, X-ray diffraction and transmission electron microscopy. A reduction both in total and nickel surface area has been observed, the extent depending on the experimental conditions. Sintering of the studied catalyst, reflected by a significant decrease of nickel surface area, is a combined effect of primary encapsulation of metallic nickel due to the collapse of the support structure and sporadic agglomeration of nickel crystallites. The formation of a Ni2+ doped alumina phase, induced by steam ambience, further accelerates loss of surface nickel atoms. It is found that the sintering rate obeys a simple power law expression, with the apparent activation energy value of 118 kJ/mol. The sintered methanation catalyst suffers considerable decay of CO hydrogenation activity in a simulated industrial atmosphere, which suggests that extraordinarily high temperatures should be avoided as much as possible in the practical operation.
语种英语
WOS记录号WOS:000339378700012
引用统计
被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143976
专题中国科学院大连化学物理研究所
通讯作者Wang SD(王树东)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Bai, Xiaobo,Wang, Sheng,Sun, Tianjun,et al. The sintering of Ni/Al2O3 methanation catalyst for substitute natural gas production[J]. REACTION KINETICS MECHANISMS AND CATALYSIS,2014,112(2):437-451.
APA Bai, Xiaobo,Wang, Sheng,Sun, Tianjun,Wang, Shudong,&王树东.(2014).The sintering of Ni/Al2O3 methanation catalyst for substitute natural gas production.REACTION KINETICS MECHANISMS AND CATALYSIS,112(2),437-451.
MLA Bai, Xiaobo,et al."The sintering of Ni/Al2O3 methanation catalyst for substitute natural gas production".REACTION KINETICS MECHANISMS AND CATALYSIS 112.2(2014):437-451.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2014EX9NNavkcg.PDF(765KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Bai, Xiaobo]的文章
[Wang, Sheng]的文章
[Sun, Tianjun]的文章
百度学术
百度学术中相似的文章
[Bai, Xiaobo]的文章
[Wang, Sheng]的文章
[Sun, Tianjun]的文章
必应学术
必应学术中相似的文章
[Bai, Xiaobo]的文章
[Wang, Sheng]的文章
[Sun, Tianjun]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。