NDLI: Promotional Effects of CeO2 on Stability and Activity of CaO for the Glycerolysis of Triglycerides

Content Provider	Springer Nature Link
Author	Qin, Feng hair, Bendaoud Shen, Wei Xu, Hualong Kaliaguine, Serge
Copyright Year	2016
Abstract	Glycerolysis of triglycerides (corn oil) was carried out over CeO2 promoted CaO catalysts. CeO2 was introduced into CaO via the sol–gel combustion method with citrate as the precipitator. A strong interaction between CaO and CeO2 was revealed by XRD, XPS and Raman results, which results in an increased basic strength and amounts of strong basic sites. Moreover, the lixiviation of CaO in the glycerol at high temperature, which is the key problem in the glycerolysis reaction over CaO-based catalysts, was inhibited significantly. XRD, N2 adsorption–desorption isotherms and SEM results exhibit introducing CeO2 increases the surface area, pore volume and pore size of CaO catalysts, which are beneficial to the catalytic activity. The 2CaO–1CeO2 catalyst with strong basicity and large surface area achieved over 90 % conversion after 1 h while the lixiviated Ca decreased dramatically.
Starting Page	1273
Ending Page	1282
Page Count	10
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	146
Issue Number	7
e-ISSN	1572879X
Language	English
Publisher	Springer US
Publisher Date	2016-04-26
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Glycerolysis of triglycerides CeO2 promoted CaO solid base catalyst Interaction Anti-leaching of CaO Catalysis Industrial Chemistry/Chemical Engineering Organometallic Chemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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