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Distribution of Copper Ions in a CuLaHY Zeolite and Its Performance in Adsorption Desulfurization
Fan Min-Guang1; Li Bin1; Zhang Fei-Yue1; Li Wang-Liang2; Xing Jian-Min2; Liu Zi-Li1; Li, B
2009-03-01
Source PublicationACTA PHYSICO-CHIMICA SINICA
ISSN1000-6818
Volume25Issue:3Pages:495-501
AbstractCuLaHY zeolite absorbents with different Cu loadings were prepared by the equal volume impregnation method under an air atmosphere. They were characterized by X-ray diffraction (XRD), BET surface area measurement, and X-ray photoelectron spectroscopy (XPS). The crystalline structure and distribution Of Cu2+ and La3+ cations in the cages of the Y zeolite were determined by powder XRD. The performance of adsorption desulfurization for CuLaHY zeolite adsorbents was investigated using a model diesel containing dibenzothiophene (DBT). Results showed that a large amount of Cu from the precursor CuCl, exchanged with the LaHY zeolite and entered the cages of the Y zeolite while a very small amount of Cu from the precursor CuCl2 was highly scattered in the cages of the Y zeolite in the form of CuCl. The La3+ cations and a portion of the Cu2+ cations entered the cages of the Y zeolite and situated at the S-I, sites in the beta cages while another portion of the Cu2+ cations situated firmly at the S-II and S-III sites in the supercages of the Y zeolites. They were coordinated to skeleton-oxygen atoms and water molecules. Cu2+ cations in the supercages can adsorb DBT molecules from the model diesel and thus become centers of adsorption desulfurization. However, naphthalene molecules will result in competitive adsorption with DBT molecules.
KeywordCulahy Zeolite Absorbent Characterization Crystalline Structure Adsorption Desulfurization
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3866/PKU.WHXB20090316
Indexed BySCI
Language英语
WOS KeywordSELECTIVE ADSORPTION ; PI-COMPLEXATION ; TRANSPORTATION FUELS ; SULFUR ; GASOLINE ; ADSORBENTS ; REMOVAL
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000264422200016
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6704
Collection生化工程国家重点实验室
Corresponding AuthorLi, B
Affiliation1.Guangxi Univ, Coll Chem & Chem Engn, Nanning 530004, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Fan Min-Guang,Li Bin,Zhang Fei-Yue,et al. Distribution of Copper Ions in a CuLaHY Zeolite and Its Performance in Adsorption Desulfurization[J]. ACTA PHYSICO-CHIMICA SINICA,2009,25(3):495-501.
APA Fan Min-Guang.,Li Bin.,Zhang Fei-Yue.,Li Wang-Liang.,Xing Jian-Min.,...&Li, B.(2009).Distribution of Copper Ions in a CuLaHY Zeolite and Its Performance in Adsorption Desulfurization.ACTA PHYSICO-CHIMICA SINICA,25(3),495-501.
MLA Fan Min-Guang,et al."Distribution of Copper Ions in a CuLaHY Zeolite and Its Performance in Adsorption Desulfurization".ACTA PHYSICO-CHIMICA SINICA 25.3(2009):495-501.
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