Distribution of Copper Ions in a CuLaHY Zeolite and Its Performance in Adsorption Desulfurization

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	Distribution of Copper Ions in a CuLaHY Zeolite and Its Performance in Adsorption Desulfurization
	Fan Min-Guang 1; Li Bin 1; Zhang Fei-Yue 1; Li Wang-Liang 2; Xing Jian-Min 2; Liu Zi-Li 1
刊名	ACTA PHYSICO-CHIMICA SINICA
	2009-03-01
卷号	25 期号:3 页码:495-501
关键词	CuLaHY Zeolite absorbent Characterization Crystalline structure Adsorption desulfurization
ISSN号	1000-6818
通讯作者	Li, B
英文摘要	CuLaHY 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.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
关键词[WOS]	SELECTIVE ADSORPTION ; PI-COMPLEXATION ; TRANSPORTATION FUELS ; SULFUR ; GASOLINE ; ADSORBENTS ; REMOVAL
收录类别	SCI
语种	英语
WOS记录号	WOS:000264422200016
公开日期	2013-12-10
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/6704]
专题	过程工程研究所_生化工程国家重点实验室
作者单位	1.Guangxi Univ, Coll Chem & Chem Engn, Nanning 530004, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 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,&Liu Zi-Li.(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.