Zeolite-assisted etherification of glycerol with butanol for biodiesel oxygenated additives production  

作　　者：C.Cannilla G.Bonura S.Maisano L.Frusteri M.Migliori G.Giordano S.Todaro F.Frusteri 

机构地区：[1]CNR-ITAE,Istituto di Tecnologie Avanzate per l'Energia“Nicola Giordano”,Via S.Lucia 5,98126 Messina,Italy [2]Dipartimento di Ingegneria Elettronica,Chimica e Ingegneria Industriale,Universitàdi Messina,Contrada di Dio I,98166 Messina,Italy [3]Dipartimento di Ingegneria per l'Ambiente e il Territorio e Ingegneria Chimica,Universitàdella Calabria,Via P]Bucci,97036 Rende,Italy

出　　处：《Journal of Energy Chemistry》2020年第9期136-144,I0005,共10页能源化学（英文版）

摘　　要：This research was focused on the valorisation of glycerol,exploring the feasibility of an efficient route for oxygenated additives production based on its etherification with bio-butanol.A home-made BEA zeolite sample with a tuneable acidity has been proposed as the catalytic system,being tested in a stirred reactor under different etherification conditions.Although a reaction temperature as high as 200℃resulted to be beneficial in terms of glycerol conversion(-90%),only by operating at milder conditions the product selectivity to glycerol-ethers can be better controlled,in order to obtain a bio-fuel complying with the requirements for mixing with fossil diesel or biodiesel,without any need of purification from large amount of by-products.A comprehensive identification of all the compounds formed during the reaction was performed by a GC-MS analysis,on the basis of the complex network of consecutive and parallel reaction paths leading not only to the desired ethers,but also to many side products not detected in similar acid-catalyzed reactions in liquid phase and not available in the most used mass-spectra libraries.

关 键 词：GLYCEROL BUTANOL BEA GC-MS analysis Acid catalysts Biofuels Butyl glycerol ethers 

分 类 号：TE624.8[石油与天然气工程—油气加工工程]