Hydrodeoxygenation of Phenol on Beta Zeolite Catalysts

作     者：Elisa Cristina Goncalves Tavares Maikel Laurence Maloncy Marcelo da Silva Batista 

作者机构：Department of Chemical Engineering and Statistic Federal University of Sao Joao del Rei Ouro Branco-MG 36420-000 Brazil Process and Food Technology The Hague University of Applied Sciences the Hague 2501 the Netherlands 

出 版 物：《Journal of Chemistry and Chemical Engineering》 (化学与化工（英文版）)

年 卷 期：2014年第8卷第12期

页      面：1098-1103页

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 081701[工学-化学工程] 

主　　题：HDO catalysts beta zeolite biofuel 

摘      要：Biomass is considered the largest renewable energy source and an important alternative for biofuel production. The fast pyrolysis of biomass is an economical and advantageous to get bio-oil. However, bio-oil has a large amount of oxygenated compounds and needs upgrade. The catalytic process of HDO （hydrodeoxygenation） is the most efficient way to remove oxygen from the bio-oil. In this paper, it was studied the HDO phenol （300 ℃ and 35 atm） on catalysts based on cobalt or copper oxides supported on HBeta zeolite. The catalysts were characterized by XRD （X-ray diffraction）, FTIR （infrared spectroscopy） and NH3-TPD （desorption of ammonia）. The results showed the presence of CO304 （cobalt oxide） and CuO （copper oxide）. The measurements showed the presence of acid sites weak, moderate and strong and that the impregnation of the metal oxide modifying the acidity of the support. The results showed the following order HDO conversion： CoHBeta 〉 CuHBeta 〉 HBeta. The presence of the cobalt or copper catalysts contributes to the increase in conversion due to hydrogenation. All catalysts were selective to benzene, but only the impregnated catalysts showed selectivity to cyclohexane and cyclohexene.