Distribution of Cu Ions in Lanthanum-Modified CuHY Zeolite and Its Influence on Adsorption Desulfurization Performance
文献类型：期刊论文
| 作者 | Fan Minguang1; Li Bin1; Mang Feiyue1; Fang Jinlong1; Li Wangliang2; Xing Jianmin2; Liu Zili1 |
| 刊名 | CHINESE JOURNAL OF CATALYSIS
 |
| 出版日期 | 2009-10-01 |
| 卷号 | 30期号:10页码:1041-1048 |
| 关键词 | HY zeolite copper lanthanum adsorbent modification dibenzothiophene adsorption desulfurization |
| ISSN号 | 0253-9837 |
| 通讯作者 | Fan, MG |
| 英文摘要 | The Cu-loaded CuHY and CuLaHY zeolites were prepared by an incipient wetness method under nitrogen gas atmosphere. The samples were characterized by X-ray diffraction (XRD), N(2) adsorption, NH(3) temperature-programmed desorption, and X-ray photoelectron spectroscopy. The crystalline structure and the distribution of Cu(2+) cations in the cages of Y zeolite were determined by XRD. The adsorption desulfurization performance of the zeolites was investigated for model diesel containing dibenzothiophene (DBT). The results showed that most of Cu species from the precursor CuCl(2) was ion-exchanged with the HY and LaHY zeolites. For the La(3+)-modified CuHY zeolite (Cu-LaHY), the Cu(2+) cations entering the supercages of the zeolite coordinated with both skeleton-oxygen atoms and water molecules, and thus being firmly situated at the sites Sri and Sill in the supercages. For the CuHY zeolite, however, Cu(2+) cations entering the supercages were only near the sites S(II) and S(III) in the supercages. A very small percentage of CuCl molecules was highly scattered in the cages of the Y zeolite, with no definite position. The Cu(2+) cations at the sites S(II) and S(III) in the supercages adsorbed DBT molecules in the model diesel were the centers of adsorption desulfurization. The desulfurization capacity of the CuLaHY zeolite was better as compared with the CuHY zeolite. However, naphthalene molecules will result in competitive adsorption with DBT molecules if there are naphthalene molecules in the model diesel. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | PI-COMPLEXATION ; TRANSPORTATION FUELS ; DEEP DESULFURIZATION ; GASOLINE ; TEMPERATURE ; DIBENZOTHIOPHENE ; ACIDITY ; SULFUR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000271814400014 |
| 公开日期 | 2013-11-29 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6570]  |
| 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, Guangxi, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan Minguang,Li Bin,Mang Feiyue,et al. Distribution of Cu Ions in Lanthanum-Modified CuHY Zeolite and Its Influence on Adsorption Desulfurization Performance[J]. CHINESE JOURNAL OF CATALYSIS,2009,30(10):1041-1048. |
| APA | Fan Minguang.,Li Bin.,Mang Feiyue.,Fang Jinlong.,Li Wangliang.,...&Liu Zili.(2009).Distribution of Cu Ions in Lanthanum-Modified CuHY Zeolite and Its Influence on Adsorption Desulfurization Performance.CHINESE JOURNAL OF CATALYSIS,30(10),1041-1048. |
| MLA | Fan Minguang,et al."Distribution of Cu Ions in Lanthanum-Modified CuHY Zeolite and Its Influence on Adsorption Desulfurization Performance".CHINESE JOURNAL OF CATALYSIS 30.10(2009):1041-1048. |
入库方式： OAI收割
来源：过程工程研究所
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