Nickel-loaded ZSM-5 catalysed hydrogenation of oleic acid: The game between acid sites and metal centres

doi:10.1016/j.apcata.2019.117112

	Nickel-loaded ZSM-5 catalysed hydrogenation of oleic acid: The game between acid sites and metal centres
	Li, Ming 2,3,4,5; Xing, Shiyou 2,3,4,6; Yang, Lingmei 2,3,4; Fu, Junying 2,3,4; Lv, Pengmei 1,2,3,4; Wang, Zhongming 2,3,4; Yuan, Zhenhong 2,3,4
刊名	APPLIED CATALYSIS A-GENERAL
	2019-10-25
卷号	587 页码:14
关键词	Alkali ion exchange Oleic Acid Acid sites Metal centres ZSM-5 Hydrogenation
ISSN号	0926-860X
DOI	10.1016/j.apcata.2019.117112
通讯作者	Lv, Pengmei(lvpm@ms.giec.ac.cn)
英文摘要	Ni-ZSM-5 bi-functional catalysts were prepared by ion-exchanged (Li+, Na+, K+) in alkaline solution with different alkali concentrations. Highly selective alkanes and aromatics were abtained separately in the conversion of oleic acid by adjusting the relative strength between metal centres and acid sites. When the protons of parent HZSM-5 were fully exchanged by alkali ions in 0.2 M alkaline solution, the Bronsted acid was almost removed, while the Lewis acid was relatively enhanced. Of note, Li fully exchanged ZSM-5 with a strong Lewis acid of 68.45 mu mol/g was much higher than the parent HZSM-5 of 13.74 mu mol/g. Because the acidity of ZSM-5 was greatly reduced, the reaction process was dominated by the metal centres, and the products were main alkanes. When catalyzed by LiZSM-5, the content of iso-alkanes could reach 39.92%. If the protons of HZSM-5 were partially exchanged by alkali ions in low concentration alkaline solution (0.02 M-0.1 M), their strong Bronsted acidity decreased gradually from 682.7 mu mol/g to 0. The acid sites containing strong Bronsted acid were stronger than the metal centres, which was independent of the amount of strong Bronsted acid. Due to the exist of strong Bronsted acidity; the reaction process was dominated by the acid sites, and the product were main aromatics. Reasonable acid regulation could effectively control the content of aromatics in the products. When catalysed by Ni-008NaZSM-5, with 68.6 mu mol/g strong Bronsted acidity, the content of aromatics could reach 87.46%. In summary, desirable products could be acquired by regulating the relative strength between acid sites and metal centres.
资助项目	National Natural Science Foundation of China[51806225] ; National Natural Science Foundation of China[21576260] ; National Natural Science Foundation of China[51606201] ; Special Funds of Applied Science and Technology Research of Guangdong Province[2015B020241002] ; Guangdong special support program[2017TX04Z109] ; Natural Science Foundation of Guangdong Province[2018A030310078] ; Natural Science Foundation of Guangdong Province[2016A030308004] ; China Postdoctoral Science Foundation[2018M633174] ; National Key Research and Development Plan[2017YFD0601003]
WOS关键词	PYROLYSIS BIO-OIL ; VEGETABLE-OILS ; GREEN DIESEL ; SI/AL RATIO ; BIODIESEL PRODUCTION ; FUEL PRODUCTION ; DIMETHYL ETHER ; CRUDE METHANOL ; ZEOLITE ZSM-5 ; RAPESEED OIL
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000494893600001
资助机构	National Natural Science Foundation of China ; Special Funds of Applied Science and Technology Research of Guangdong Province ; Guangdong special support program ; Natural Science Foundation of Guangdong Province ; China Postdoctoral Science Foundation ; National Key Research and Development Plan
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26263]
专题	中国科学院广州能源研究所
通讯作者	Lv, Pengmei
作者单位	1.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Henan, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Univ Utrecht, Debye Inst Nanomat Sci, Inorgan Chem & Catalysis, Univ Weg 99, NL-3584 CG Utrecht, Netherlands
推荐引用方式 GB/T 7714	Li, Ming,Xing, Shiyou,Yang, Lingmei,et al. Nickel-loaded ZSM-5 catalysed hydrogenation of oleic acid: The game between acid sites and metal centres[J]. APPLIED CATALYSIS A-GENERAL,2019,587:14.
APA	Li, Ming.,Xing, Shiyou.,Yang, Lingmei.,Fu, Junying.,Lv, Pengmei.,...&Yuan, Zhenhong.(2019).Nickel-loaded ZSM-5 catalysed hydrogenation of oleic acid: The game between acid sites and metal centres.APPLIED CATALYSIS A-GENERAL,587,14.
MLA	Li, Ming,et al."Nickel-loaded ZSM-5 catalysed hydrogenation of oleic acid: The game between acid sites and metal centres".APPLIED CATALYSIS A-GENERAL 587(2019):14.