Jian Chen , Jinlin Li , Yanxi Zhao , Yuhua Zhang , Jingping Hong
{"title":"Effects of Ru nanoparticle sizes confined in cavities of SBA-16 on the catalytic performance of Fischer-Tropsch synthesis reaction","authors":"Jian Chen , Jinlin Li , Yanxi Zhao , Yuhua Zhang , Jingping Hong","doi":"10.1016/S1003-9953(11)60418-0","DOIUrl":null,"url":null,"abstract":"<div><p>Ru nanoparticles with different sizes confined in the cavities of mesoporous SBA-16 have been successfully synthesized by incipient wetness impregnation method with a Ru loading of 4 wt%. The catalysts were characterized by XRD, N<sub>2</sub> adsorption-desorption, H<sub>2</sub>-TPR, H<sub>2</sub>-TPD, O<sub>2</sub>-titration and TEM. The catalytic performance of Fischer-Tropsch synthesis over the catalyst was tested in a fixed-bed reactor. The addition of citric acid in the impregnation procedure shows a significant influence on the size of Ru nanoparticles. The selectivity to C<sub>5+</sub> increases, while the selectivities to methane and C<sub>2</sub>–C<sub>4</sub> light hydrocarbons decrease with Ru average particles size from 2.0 nm to 9.3 nm,. The Ru catalyst confined in the SBA-16 with average nanoparticle size of 5.3 nm gives the best activity.</p></div>","PeriodicalId":56116,"journal":{"name":"Journal of Natural Gas Chemistry","volume":"21 6","pages":"Pages 673-679"},"PeriodicalIF":0.0000,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1003-9953(11)60418-0","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Natural Gas Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1003995311604180","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 12
Abstract
Ru nanoparticles with different sizes confined in the cavities of mesoporous SBA-16 have been successfully synthesized by incipient wetness impregnation method with a Ru loading of 4 wt%. The catalysts were characterized by XRD, N2 adsorption-desorption, H2-TPR, H2-TPD, O2-titration and TEM. The catalytic performance of Fischer-Tropsch synthesis over the catalyst was tested in a fixed-bed reactor. The addition of citric acid in the impregnation procedure shows a significant influence on the size of Ru nanoparticles. The selectivity to C5+ increases, while the selectivities to methane and C2–C4 light hydrocarbons decrease with Ru average particles size from 2.0 nm to 9.3 nm,. The Ru catalyst confined in the SBA-16 with average nanoparticle size of 5.3 nm gives the best activity.
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