Effect of Sodium on the Structure-Performance Relationship of Co/SiO2 for Fischer-Tropsch Synthesis
Dai, Yuanyuan1,2; Yu, Fei1,2; Li, Zhengjia1,3; An, Yunlei1,4; Lin, Tiejun1; Yang, Yanzhang1,2; Zhong, Liangshu1; Wang, Hui1; Sun, Yuhan1,5
2017-06
Source PublicationCHINESE JOURNAL OF CHEMISTRY
ISSN1001-604X
Volume35Issue:6Pages:918-926
Status已发表
DOI10.1002/cjoc.201600748
AbstractA 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.
KeywordFischer-Tropsch synthesis structure-performance relationship sodium cobalt carbide oxygenates
Indexed BySCI
Language英语
Funding ProjectChinese Academy of Sciences (Youth Innovation Promotion Association)[QYZDB-SSW-SLH035]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000404029500022
PublisherWILEY-V C H VERLAG GMBH
WOS KeywordSUPPORTED COBALT CATALYSTS ; HIGHER-ALCOHOL SYNTHESIS ; REALISTIC CONDITIONS ; IRON CATALYSTS ; LOWER OLEFINS ; ALUMINA ; SYNGAS ; HYDROGENATION ; PROMOTERS ; DESIGN
Original Document TypeArticle
Corresponding AuthorZhong, Liangshu
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2922
Collection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
Corresponding AuthorZhong, Liangshu
Affiliation1.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
Recommended Citation
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.
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