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Separation of polycyclic aromatic compounds from model gasoline by magnetic alumina sorbent based on pi-complexation
Alternative TitleInd. Eng. Chem. Res.
Shan, GB; Liu, HZ; Xing, JM; Zhang, GD; Wang, K
2004-02-04
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume43Issue:3Pages:758-761
AbstractMagnetic alumina sorbent was used in the separation of aromatic compounds from gasoline by a pi-complexation mechanism. Magnetic alumina sorbents can effectively adsorb polycyclic aromatics and polycyclic aromatic sulfur compounds from model gasoline, and the amounts adsorbed were up to 0.12 mmol.(g of sorbent)(-1). The interactions between various aromatics and sorbents of different acidities were studied. The results showed that the amounts adsorbed are related to the capability of forming pi-complexation interactions, and the magnetic alumina sorbent used was found to have the following order of adsorptive ability for aromatics: pyrene > naphthalene > DBT approximate to fluorene. Al3+ and its oxide are Lewis pi-acids, and aromatic compounds are Lewis pi-bases; thus, they can form pi-complexes with each other. The pi-complexation was verified by fluorescence spectrum. The quenching of the fluorescence of pyrene by Al3+ was due to partial pi-electron transfer from pyrene to the cation according to Lewis theory and fluorescence quenching theory.; Magnetic alumina sorbent was used in the separation of aromatic compounds from gasoline by a pi-complexation mechanism. Magnetic alumina sorbents can effectively adsorb polycyclic aromatics and polycyclic aromatic sulfur compounds from model gasoline, and the amounts adsorbed were up to 0.12 mmol.(g of sorbent)(-1). The interactions between various aromatics and sorbents of different acidities were studied. The results showed that the amounts adsorbed are related to the capability of forming pi-complexation interactions, and the magnetic alumina sorbent used was found to have the following order of adsorptive ability for aromatics: pyrene > naphthalene > DBT approximate to fluorene. Al3+ and its oxide are Lewis pi-acids, and aromatic compounds are Lewis pi-bases; thus, they can form pi-complexes with each other. The pi-complexation was verified by fluorescence spectrum. The quenching of the fluorescence of pyrene by Al3+ was due to partial pi-electron transfer from pyrene to the cation according to Lewis theory and fluorescence quenching theory.
KeywordAdsorption Desulfurization Halides
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordADSORPTION ; DESULFURIZATION ; HALIDES
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000188543400013
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5015
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Lab Separat Sci & Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Shan, GB,Liu, HZ,Xing, JM,et al. Separation of polycyclic aromatic compounds from model gasoline by magnetic alumina sorbent based on pi-complexation[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2004,43(3):758-761.
APA Shan, GB,Liu, HZ,Xing, JM,Zhang, GD,&Wang, K.(2004).Separation of polycyclic aromatic compounds from model gasoline by magnetic alumina sorbent based on pi-complexation.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,43(3),758-761.
MLA Shan, GB,et al."Separation of polycyclic aromatic compounds from model gasoline by magnetic alumina sorbent based on pi-complexation".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 43.3(2004):758-761.
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