Sodium persulfate promoted interzeolite transformation of USY into SSZ-13 via a solid-state grinding route and its enhanced catalytic lifetime in the methanol-to-olefins reaction

doi:10.1007/s11144-021-02105-6

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Sodium persulfate promoted interzeolite transformation of USY into SSZ-13 via a solid-state grinding route and its enhanced catalytic lifetime in the methanol-to-olefins reaction
	Zhao, Xinhong; Niu, Li; Hao, Zongyi; Long, Xuefeng; Wang, Dongliang; Li, Guixian
刊名	REACTION KINETICS MECHANISMS AND CATALYSIS
	2021-12
卷号	134 期号:2 页码:837-849
关键词	SSZ-13 zeolite Interzeolite transformation Sodium persulfate Solid-phase grinding method Methanol-to-olefins reaction
ISSN号	1878-5190
DOI	10.1007/s11144-021-02105-6
英文摘要	SSZ-13 has been widely used in catalysis and adsorption due to its excellent hydrothermal stability and large specific surface area. It was reported that the long crystallization time was one of the primary challenges limiting its industrial progress. In this paper, we reported a novel solid-state grinding route of synthesizing SSZ-13 zeolite, which was based on interzeolite transformation strategy and promoted by sodium persulfate (Na2S2O8). The effects of the amount of Na2S2O8 and crystallization time on the purity and crystallinity of SSZ-13 zeolite were studied by XRD measurements in detail. The results indicated that the crystallization time could be significantly shortened from 72 to 24 h when the molar ratio of Na2S2O8/SiO2 was changed from 0 to 0.01, proving that Na2S2O8 has the ability of accelerating the crystallization of SSZ-13 as a hydroxyl radical reagent. Three typical SSZ-13 materials and a reference sample were used as the catalysts for methanol-to-olefins reaction (MTO) and their physicochemical properties were analyzed by SEM, N-2 physisorption and NH3-TPD techniques. The SEM characterization results showed that the crystal size of SSZ-13 synthesized in the presence of Na2S2O8 was larger than that of the one in the absence of it. The NH3-TPD results showed that the introduction of Na2S2O8 could modulate the acid properties of SSZ-13 zeolites. The MTO tests revealed that the catalytic lifetime of one sample with Na2S2O8 promoter (SSZ-13-0.01M-24h) was much longer than that of the other three samples. The observed difference in catalytic stability was mainly attributed to their various concentrations of medium strong acid sites.
WOS研究方向	Chemistry
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000713536600003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150022]
专题	石油化工学院
作者单位	Lanzhou Univ Technol, Sch Petrochem Technol, Key Lab Low Carbon Energy & Chem Engn Gansu Prov, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xinhong,Niu, Li,Hao, Zongyi,et al. Sodium persulfate promoted interzeolite transformation of USY into SSZ-13 via a solid-state grinding route and its enhanced catalytic lifetime in the methanol-to-olefins reaction[J]. REACTION KINETICS MECHANISMS AND CATALYSIS,2021,134(2):837-849.
APA	Zhao, Xinhong,Niu, Li,Hao, Zongyi,Long, Xuefeng,Wang, Dongliang,&Li, Guixian.(2021).Sodium persulfate promoted interzeolite transformation of USY into SSZ-13 via a solid-state grinding route and its enhanced catalytic lifetime in the methanol-to-olefins reaction.REACTION KINETICS MECHANISMS AND CATALYSIS,134(2),837-849.
MLA	Zhao, Xinhong,et al."Sodium persulfate promoted interzeolite transformation of USY into SSZ-13 via a solid-state grinding route and its enhanced catalytic lifetime in the methanol-to-olefins reaction".REACTION KINETICS MECHANISMS AND CATALYSIS 134.2(2021):837-849.