Synthesis and Desulfurization Performance of Nanocrystal-Assembled Zeolite L with a Hierarchical Pore Structure

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	Synthesis and Desulfurization Performance of Nanocrystal-Assembled Zeolite L with a Hierarchical Pore Structure
	Huo Quan 1; Dou Tao 1; Gong Yan-Jun 1; Zhao Zhen 1; Deng Feng 2; Yu Zhi-Wu 2; Pan Hui-Fang 1
刊名	ACTA PHYSICO-CHIMICA SINICA
	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%.
学科主题	波谱分析
WOS标题词	Science & Technology ; Physical Sciences
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
内容类型	期刊论文
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.