Functionalized value-added products via metathesis of methyloleate over methyltrioxorhenium supported on ZnCl₂-promoted mesoporous alumina

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• 作者：Subha Kumaraswamy Pillai^a ; ^b ; ^c ; Safia Hamoudi^a ; ^c ; Khaled Belkacemi^a ; ^c ; ^{khaled.belkacemi@fsaa.ulaval.ca}
• 关键词：Methyloleate ; Functionalized olefins ; Methyltrioxorhenium ; ZnCl2-promoted mesoporous alumina ; Self-metathesis
• 刊名：Fuel
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：110
• 期：Complete
• 页码：32-39
• 全文大小：1340 K

文摘

Production of useful building block materials with high value-added from natural resources is becoming increasingly relevant due to depletion of fossil-derived feedstock. Metathesis of recycled vegetable oils with satisfactory activity is viewed as challenging but possible and attractive route for production of these building blocks. A novel rhenium based catalyst supported on mesoporous alumina modified by zinc chloride was developed, characterized and tested for metathesis of methyloleate, a model molecule for the triglycerides and oils. The catalyst showed a high activity and a good selectivity equivalent to that of homogeneous second generation Grubbs catalyst where a conversion of 92.0 % after 30 min of reaction and a total metathesis product yield of 86.7 % with 52 % attributed to the desired metathesis products were attained. This paper highlighted also the effect of methyltrioxorhenium (MTO) loading on the metathesis activity where 3 % MTO loading revealed to be optimum.