Modulation of SAPO-34 Property with Activated Seeds and Its Enhanced Lifetime in Methanol to Olefins Reaction

doi:10.15541/jim20200059

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Modulation of SAPO-34 Property with Activated Seeds and Its Enhanced Lifetime in Methanol to Olefins Reaction
	Zhang Dongqiang; Lu Huihui; Su Na; Li Guixian; Ji Dong; Zhao Xinhong
刊名	JOURNAL OF INORGANIC MATERIALS
	2021-01-20
卷号	36 期号:1 页码:101-+
关键词	MOLECULAR-SIEVES CATALYTIC PERFORMANCE DIRECTED SYNTHESIS TO-HYDROCARBONS MTO REACTION CONVERSION ACID CRYSTALLIZATION ZEOLITES DEACTIVATION
ISSN号	1000-324X
DOI	10.15541/jim20200059
英文摘要	Solvent-free synthesis of zeolites has received extensive attention in recent years, because it is advantageous over conventional hydrothermal synthesis. Nevertheless, SAPO-34, a micropore zeolite, prepared by this method does not satisfy the catalytic lifetime requirements of the methanol-to-olefins (MTO) reaction. Herein, an improved solvent-free approach was developed to synthesize SAPO-34 catalysts with enhanced MTO reaction performance, in which acid-etched seed crystals were introduced to modulate the physico-chemical properties of the zeolite via crystallization kinetics regulation. The results indicated that the SAPO-34 samples prepared from seed-containing precursor gels show considerably higher crystallinity, larger surface area, but lower strong acid site density than the parent sample. In particular, the catalytic lifetime of the SAPO-34 catalyst prepared from activated seeds was remarkably prolonged to 480 min, which was significantly superior to that of the parent sample (40 min). The result confirmed the validity of the seeding approach for modifying the zeolite properties via the solvent-free synthesis and the potential of the approach in improving catalytic performance.
WOS研究方向	Materials Science
语种	英语
出版者	Science Press
WOS记录号	WOS:000603439000014
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147334]
专题	石油化工学院
通讯作者	Zhao Xinhong
作者单位	Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zhang Dongqiang,Lu Huihui,Su Na,et al. Modulation of SAPO-34 Property with Activated Seeds and Its Enhanced Lifetime in Methanol to Olefins Reaction[J]. JOURNAL OF INORGANIC MATERIALS,2021,36(1):101-+.
APA	Zhang Dongqiang,Lu Huihui,Su Na,Li Guixian,Ji Dong,&Zhao Xinhong.(2021).Modulation of SAPO-34 Property with Activated Seeds and Its Enhanced Lifetime in Methanol to Olefins Reaction.JOURNAL OF INORGANIC MATERIALS,36(1),101-+.
MLA	Zhang Dongqiang,et al."Modulation of SAPO-34 Property with Activated Seeds and Its Enhanced Lifetime in Methanol to Olefins Reaction".JOURNAL OF INORGANIC MATERIALS 36.1(2021):101-+.