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<strong>Leaching of the active component of alumina supported sodium catalysts during the transesterification of soybean oil</strong>

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Title Statement <strong>Leaching of the active component of alumina supported sodium catalysts during the transesterification of soybean oil</strong>
 
Added Entry - Uncontrolled Name Gupta, Arun Kumar; UIET CSJM University Kanpur
Garg, Sanjeev ; Indian Institute of Technology Kanpur
Deo, Goutam ; Indian Institute of Technology Kanpur
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Uncontrolled Index Term Biodiesel; Soybean; Na/γ-Al2O3; Leaching; Transesterification; CO2 TPD
 
Summary, etc. The transesterification reaction for biodiesel production using soybean oil with several alkali and alkaline metal hydroxides and alkoxides as liquid-phase catalysts has been studied. The hydroxides and alkoxides of sodium (Na) and potassium (K) are found to be the most active. Alumina (Al<sub>2</sub>O<sub>3</sub>) supported Na is subsequently considered for the synthesis of a suitable solid-phase catalyst. This catalyst was synthesized and characterized. An optimum Na loading of 10 wt% for biodiesel production is determined. This catalyst also show the maximum basicity. The effects of operating conditions for the transesterification reaction using the Al<sub>2</sub>O<sub>3</sub> supported Na catalyst are also determined. In all of the reactions involving Al<sub>2</sub>O<sub>3</sub> supported Na catalysts leaching of the active component has been observed and the reaction appeared to proceed as a liquid phase catalyzed reaction. The leached amount corresponded to about 20% of the Na present in the Al<sub>2</sub>O<sub>3</sub> supported Na catalyst and is independent of the methanol amount. Thus, leaching is a serious consideration for supported Na catalysts.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2018-07-05 10:41:26
 
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http://op.niscair.res.in/index.php/IJCT/article/view/11161
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 24, ##issue.no## 5 (2017): Indian Journal of Chemical Technology
 
Language Note en