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	Manganese cluster induce the control synthesis of rho- and cha-type silicoaluminaphosphates for dimethylether to light olefin conversion
	Wang, Fei1,3; Wen, Zhiyong2; Qin, Zhaoxian3; Fang, Qihua1,3; Ge, Qingjie2; Li, Zhimin3; Sun, Jian2; Li, Gao3
刊名	Fuel
	2019-05-15
卷号	244页码:104-109
关键词	Manganese clusters Rho Sapo-34 Silicoaluminaphosphates Dimethylether to light olefin
ISSN号	0016-2361
DOI	10.1016/j.fuel.2019.02.013
通讯作者	Ge, qingjie(geqj@dicp.ac.cn) ; Li, gao(gaoli@dicp.ac.cn)
英文摘要	Rho- and cha-type silicoaluminaphosphates have played an essential role in the global olefin production, e.g., dimethylether to light olefin process (dto). in this work, we report a simple synthetic protocol to selectively acquire pure rho and sapo-34 and rho&sapo-34 silicoaluminaphosphates, which is controllable mediated by the thiolate-capped manganese cluster additives. these prepared silicoaluminaphosphates are well characterized by powder x-ray diffraction (xrd), ammonia-temperature programmed desorption (nh3-tpd), and as well as n-2-physical adsorption. they are investigated in the dto catalysis. the selectivity for the c2-4= light olefins over the rho&sapo-34 catalysts is up to 90.2%, which is much higher than these over the rho (65.5%) and sapo-34 (69.0%) silicoaluminaphosphates. especially, the selectivity for ethylene is two times of these over rho and sapo-34. it is beneficial to selectively give rise to ethylene by the dual cycle hydrocarbon-pool mechanism in the dto reactions, as the rho&sapo-34 showed much stronger acidic density, both in the strong acidic sites (0.966 mmol g(-1)) and weak acidic sites (0.575 mmol g(-1)), than the rho and sapo-34. finally, the rho&sapo-34 also performs longer lifetime and durability (ca. 4.5 h) than the corresponding sapo-34 and rho silicoaluminaphosphates (ca. 1 h and 4 h), which is mainly due to slow formation of the carbon deposition over its strong acid density.
WOS关键词	ZEOLITE-RHO ; ETHER CONVERSION ; METHANOL ; HYDROCARBONS ; DEACTIVATION ; SELECTIVITY ; CHEMISTRY
WOS研究方向	Energy & Fuels ; Engineering
WOS类目	Energy & Fuels ; Engineering, Chemical
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000459434500012
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2372736
专题	大连化学物理研究所
通讯作者	Ge, Qingjie; Li, Gao
作者单位	1.Changshou Univ, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Chcmgsshou 213164, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Wang, Fei,Wen, Zhiyong,Qin, Zhaoxian,et al. Manganese cluster induce the control synthesis of rho- and cha-type silicoaluminaphosphates for dimethylether to light olefin conversion[J]. Fuel,2019,244:104-109.
APA	Wang, Fei.,Wen, Zhiyong.,Qin, Zhaoxian.,Fang, Qihua.,Ge, Qingjie.,...&Li, Gao.(2019).Manganese cluster induce the control synthesis of rho- and cha-type silicoaluminaphosphates for dimethylether to light olefin conversion.Fuel,244,104-109.
MLA	Wang, Fei,et al."Manganese cluster induce the control synthesis of rho- and cha-type silicoaluminaphosphates for dimethylether to light olefin conversion".Fuel 244(2019):104-109.

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