Production of bioadditives from glycerol esterification over zirconia supported heteropolyacids.

Zhu, S; Zhu, Y; Gao, X; Mo, T; Li, Y

Production of bioadditives from glycerol esterification over zirconia supported heteropolyacids.

Zhu, S Zhu, Y Gao, X Mo, T Li, Y

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Bioresource Technology, 2013, 130 pp. 45 - 51
Issue Date:: 2013-02

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Field	Value	Language
dc.contributor.author	Zhu, S	en_US
dc.contributor.author	Zhu, Y	en_US
dc.contributor.author	Gao, X	en_US
dc.contributor.author	Mo, T	en_US
dc.contributor.author	Li, Y	en_US
dc.date.accessioned	2017-11-26T18:49:35Z
dc.date.available	2012-12-01	en_US
dc.date.available	2017-11-26T18:49:35Z
dc.date.issued	2013-02	en_US
dc.identifier.citation	Bioresource Technology, 2013, 130 pp. 45 - 51	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/120582
dc.description.abstract	The synthesis of bioadditives for biofuels from glycerol esterification with acetic acid was performed over zirconia supported heteropolyacids catalysts using H(4)SiW(12)O(40) (HSiW), H(3)PW(12)O(40) (HPW) and H(3)PMo(12)O(40) (HPMo) as active compounds. The as-prepared catalysts were characterized by N(2)-physisorption, XRD, Raman spectroscopy, NH(3)-TPD, FTIR of pyridine adsorption and H(2)O-TPD. Among the catalysts tested, HSiW/ZrO(2) achieved the best catalytic performance owing to the better combination of surface Brønsted acid sites and hydrothermal stability. A 93.6% combined selectivity of glyceryl diacetate and glyceryl triacetate with complete glycerol conversion was obtained at 120°C and 4h of reaction time in the presence of HSiW/ZrO(2). This catalyst also presented consistent activity for four consecutive reaction cycles, while HPW/ZrO(2) and HPMo/ZrO(2) exhibited distinct deactivation after reusability tests. In addition, HSiW/ZrO(2) can be resistant to the impurities present in bulk glycerol.	en_US
dc.format	Print-Electronic	en_US
dc.language	eng	en_US
dc.publisher	Elsevier	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2012.01.012	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Acids, Noncarboxylic	en_US
dc.subject.mesh	Oxides	en_US
dc.subject.mesh	Zirconium	en_US
dc.subject.mesh	Phosphorus Compounds	en_US
dc.subject.mesh	Tungsten Compounds	en_US
dc.subject.mesh	Glycerol	en_US
dc.subject.mesh	Acetic Acid	en_US
dc.subject.mesh	Diglycerides	en_US
dc.subject.mesh	Triacetin	en_US
dc.subject.mesh	Temperature	en_US
dc.subject.mesh	Esterification	en_US
dc.subject.mesh	Catalysis	en_US
dc.subject.mesh	Biofuels	en_US
dc.title	Production of bioadditives from glycerol esterification over zirconia supported heteropolyacids.	en_US
dc.type	Journal Article
utslib.citation.volume	130	en_US
utslib.for	MD Multidisciplinary	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.declined	2017-11-27T05:49:35.146+1100
pubs.consider-herdc	false	en_US
pubs.publication-status	Published	en_US
pubs.volume	130	en_US

Abstract:

The synthesis of bioadditives for biofuels from glycerol esterification with acetic acid was performed over zirconia supported heteropolyacids catalysts using H(4)SiW(12)O(40) (HSiW), H(3)PW(12)O(40) (HPW) and H(3)PMo(12)O(40) (HPMo) as active compounds. The as-prepared catalysts were characterized by N(2)-physisorption, XRD, Raman spectroscopy, NH(3)-TPD, FTIR of pyridine adsorption and H(2)O-TPD. Among the catalysts tested, HSiW/ZrO(2) achieved the best catalytic performance owing to the better combination of surface Brønsted acid sites and hydrothermal stability. A 93.6% combined selectivity of glyceryl diacetate and glyceryl triacetate with complete glycerol conversion was obtained at 120°C and 4h of reaction time in the presence of HSiW/ZrO(2). This catalyst also presented consistent activity for four consecutive reaction cycles, while HPW/ZrO(2) and HPMo/ZrO(2) exhibited distinct deactivation after reusability tests. In addition, HSiW/ZrO(2) can be resistant to the impurities present in bulk glycerol.

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http://hdl.handle.net/10453/120582