A defect-based strategy for the preparation of mesoporous zeolite Y for high-performance catalytic cracking

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	A defect-based strategy for the preparation of mesoporous zeolite Y for high-performance catalytic cracking
	Qin, Zhengxing 1; Shen, Baojian 1; Yu, Zhiwu 2; Deng, Feng 2; Zhao, Liang 1; Zhou, Shuge 1; Yuan, Delin 1; Gao, Xionghou 3; Wang, Baojie 3; Zhao, Hongjuan 3
刊名	JOURNAL OF CATALYSIS
	2013-02-01
卷号	298 页码:102-111
关键词	Zeolite Y Desilication Dealumination Defect Mesoporous materials Catalytic cracking
英文摘要	Mesoporous ultra-stable Y zeolite with outstanding performance for heavy oil cracking was prepared through the combination of desilication and dealumination. Atomic removal of silicon atoms from the starting NaY zeolite framework during desilication was reported. Nucleation and propagation of mesopores in the following dealumination process was studied. Si(0Al) and Si(1Al) atoms are selectively removed from zeolite framework by desilication. Consequently, silanol nests and unique hydroxyl nests with framework associated Al-OH were created in the framework of the desilicated zeolite. The artificial defects effect the initiation of mesopores in crystal parts where used to be rich in framework silicon and unfavorable for mesopore formation and promote the propagation and coalescence of mesopores. Catalytic studies revealed improved activity and lifetime in the crack of 1,3,5-triisopropylbenzene and showed increased gasoline and light cycle oil selectivity when the conversion of a heavy oil was compared. (C) 2012 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]	Chemistry ; Engineering
关键词[WOS]	H-1 MAS NMR ; CONTROLLED DESILICATION ; MFI ZEOLITES ; SI-29 NMR ; DEALUMINATION ; ZSM-5 ; BETA ; GENERATION ; DIFFUSION ; CRYSTALS
收录类别	SCI
语种	英语
WOS记录号	WOS:000316155700012
公开日期	2015-07-14
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/844]
专题	武汉物理与数学研究所_磁共振应用研究部
作者单位	1.China Univ Petr, Coll Chem Engn, Key Lab Catalysis CNPC, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China 2.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 3.PetroChina Co Ltd, Petrochem Res Inst, Lanzhou Petrochem Res Ctr, Lanzhou 730060, Peoples R China
推荐引用方式 GB/T 7714	Qin, Zhengxing,Shen, Baojian,Yu, Zhiwu,et al. A defect-based strategy for the preparation of mesoporous zeolite Y for high-performance catalytic cracking[J]. JOURNAL OF CATALYSIS,2013,298:102-111.
APA	Qin, Zhengxing.,Shen, Baojian.,Yu, Zhiwu.,Deng, Feng.,Zhao, Liang.,...&Liu, Honghai.(2013).A defect-based strategy for the preparation of mesoporous zeolite Y for high-performance catalytic cracking.JOURNAL OF CATALYSIS,298,102-111.
MLA	Qin, Zhengxing,et al."A defect-based strategy for the preparation of mesoporous zeolite Y for high-performance catalytic cracking".JOURNAL OF CATALYSIS 298(2013):102-111.