Synthesis and Desulfurization Performance of Nanocrystal-Assembled Zeolite L with a Hierarchical Pore Structure
文献类型：期刊论文
| 作者 | Huo Quan1; Dou Tao1; Gong Yan-Jun1; Zhao Zhen1; Deng Feng2; Yu Zhi-Wu2; Pan Hui-Fang1 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2010-02-01 |
| 卷号 | 26期号:2页码:378-384 |
| 关键词 | Hydrodesulfurization Zeolite L Micro-mesoporous composite structure TPHAC Diesel oil Hydrogenation catalyst |
| 产权排序 | 第二 |
| 英文摘要 | Zeolite MeLTL with a micro-mesoporous composite pore structure was synthesized by using nanocrystal clusters of zeolite L prepared by the crystallization nurturing method as a precursor and [3-(trimethoxysilyl)propyl] hexadecyldimethylammonium chloride (TPHAC) as the organic mesopore directing surfactant. Several techniques including X-ray diffraction (XRD), nitrogen adsorption-desorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Al-27 magic angle spinning nuclear magnetic resonance (Al-27 MAS NMR), and Fourier transform infrared spectroscopy of pyridine adsorption (Py-FTIR) were used to characterize the samples. Results show that zeolite MeLTL is formed by the self-assembly of zeolite L nanocrystals, and it has bimodal pore distributions with a stepwise mesoporous structure and the microporous structure of zeolite L. The BET surface area and the pore volume increased significantly and were 611 m(2).g(-1) and 0.696 cm(3).g(-1), respectively. Zeolite MeLTL was composed of zeolite L units and this was responsible for the adequate surface acid amount and acid strength. As a result, the pore diffusion ability and the catalytic performance of zeolite MeLTL are enhanced by the improvement in textural properties. For diesel hydrodesulfurization, the catalyst introduced zeolite MeLTL gave better hydrodesulfurization activity compared to the catalysts introduced zeolite L or Al-MCM-41 or used bare gamma-Al2O3 as a support. The sulfur content of diesel oil after hydrotreatment was 9.3 mu g.g(-1) and the desulfurization rate was 99.3%. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 波谱分析 |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | HYDROGENATION PROPERTIES ; MESOSTRUCTURES ; SEEDS ; CATALYSTS ; ZSM-5 ; NMR ; MFI |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000274701200018 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/2008]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.China Univ Petr, China Natl Petr Corp, Key Lab Catalysis, Beijing 102249, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huo Quan,Dou Tao,Gong Yan-Jun,et al. Synthesis and Desulfurization Performance of Nanocrystal-Assembled Zeolite L with a Hierarchical Pore Structure[J]. ACTA PHYSICO-CHIMICA SINICA,2010,26(2):378-384. |
| APA | Huo Quan.,Dou Tao.,Gong Yan-Jun.,Zhao Zhen.,Deng Feng.,...&Pan Hui-Fang.(2010).Synthesis and Desulfurization Performance of Nanocrystal-Assembled Zeolite L with a Hierarchical Pore Structure.ACTA PHYSICO-CHIMICA SINICA,26(2),378-384. |
| MLA | Huo Quan,et al."Synthesis and Desulfurization Performance of Nanocrystal-Assembled Zeolite L with a Hierarchical Pore Structure".ACTA PHYSICO-CHIMICA SINICA 26.2(2010):378-384. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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