Effect of Sodium on the Structure-Performance Relationship of Co/SiO2 for Fischer-Tropsch Synthesis

doi:10.1002/cjoc.201600748

	Effect of Sodium on the Structure-Performance Relationship of Co/SiO2 for Fischer-Tropsch Synthesis
	Dai, Yuanyuan 1,2; Yu, Fei 1,2; Li, Zhengjia 1,3; An, Yunlei 1,4; Lin, Tiejun 1; Yang, Yanzhang 1,2; Zhong, Liangshu1 ; Wang, Hui 1; Sun, Yuhan1,5
	2017-06
发表期刊	CHINESE JOURNAL OF CHEMISTRY
ISSN	1001-604X
卷号	35 期号:6 页码:918-926
发表状态	已发表
DOI	10.1002/cjoc.201600748
摘要	A series of Co/SiO2 catalysts with different sodium (Na) loadings (0, 0.1, 0.2, 0.5 and 1 wt%) were prepared and evaluated for Fischer-Tropsch reaction to study the effect of Na on the catalyst structure and catalytic performance. The addition of Na was found to decrease the catalytic activity and hydrocarbon selectivity, but increase CO2 selectivity due to the enhanced WGS activity. The addition of Na also resulted in higher selectivity to oxygenates (alcohols and aldehydes) and O/P ratio as well as the shift of hydrocarbons to lower carbon numbers. Structure characterization revealed a decrease in the surface area and particles size for the calcined samples with the addition of Na. Co2C was formed during the reaction process for the Na-promoted catalysts. As a result, a new Co/Co2C bifunctional active sites were generated for oxygenates formation leading to increasing oxygenates selectivity. In addition, the Co2C nanoparticles alone may also act as dual active sites for oxygenate formation at high reaction pressure over the promoted catalysts with high Na loading.
关键词	Fischer-Tropsch synthesis structure-performance relationship sodium cobalt carbide oxygenates
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences (Youth Innovation Promotion Association)[QYZDB-SSW-SLH035]
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000404029500022
出版者	WILEY-V C H VERLAG GMBH
WOS关键词	SUPPORTED COBALT CATALYSTS ; HIGHER-ALCOHOL SYNTHESIS ; REALISTIC CONDITIONS ; IRON CATALYSTS ; LOWER OLEFINS ; ALUMINA ; SYNGAS ; HYDROGENATION ; PROMOTERS ; DESIGN
原始文献类型	Article
通讯作者	Zhong, Liangshu
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2922
专题	物质科学与技术学院_特聘教授组_钟良枢组物质科学与技术学院_特聘教授组_孙予罕组
通讯作者	Zhong, Liangshu
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201203, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.East China Normal Univ, Sch Chem & Mol Engn, Shanghai 200062, Peoples R China 4.Shanghai Univ, Coll Environm & Chem Engn, Shanghai 200444, Peoples R China 5.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201203, Peoples R China
推荐引用方式 GB/T 7714	Dai, Yuanyuan,Yu, Fei,Li, Zhengjia,et al. Effect of Sodium on the Structure-Performance Relationship of Co/SiO2 for Fischer-Tropsch Synthesis[J]. CHINESE JOURNAL OF CHEMISTRY,2017,35(6):918-926.
APA	Dai, Yuanyuan.,Yu, Fei.,Li, Zhengjia.,An, Yunlei.,Lin, Tiejun.,...&Sun, Yuhan.(2017).Effect of Sodium on the Structure-Performance Relationship of Co/SiO2 for Fischer-Tropsch Synthesis.CHINESE JOURNAL OF CHEMISTRY,35(6),918-926.
MLA	Dai, Yuanyuan,et al."Effect of Sodium on the Structure-Performance Relationship of Co/SiO2 for Fischer-Tropsch Synthesis".CHINESE JOURNAL OF CHEMISTRY 35.6(2017):918-926.