Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia

PP-17CATALYTIC CRACKING OF GLUCOSE OVER ZSM-5 ZEOLITEAT DIFFERENT TEMPERATURESAlyne da S. Escobar 1 , Margareth Rose L. Santos 1 , Luciana T. Santos 2 ,Marcelo M. Pereira 11 Federal University of Rio de Janeiro, CT, bloco A, 7º andar, CEP 21941-909, RJ,Brazil FAX: 55-21-2562-7240, alyneescobar@iq.ufrj.br2 Nacional Agency of Petroleum, Av. Rio Branco, 65, CEP 20090-004, RJ, BrazilBio-oils derived from biomass have been used as alternative sources of fuels andchemicals [1]. The direct use of bio-oils as fuels presents some difficulties due totheir viscosity, poor heating value, corrosiveness and instability [2].Those compoundscould be cracked in order to produce hydrocarbons [3]. The catalytic cracking ofglucose by ZSM-5 zeolite is reported in this work. Before evaluation, all catalystswere heated under N 2 from room temperature (10 K/min) to the reaction one.Theexperimental apparatus consist of a «U» type reactor made of quartz. Gas fractionwas measured on line by CG-MS and the condensed products were recollected andanalyzed after reaction. The products were separated into organic and aqueousphase and characterized by CG-MS and LC-MS respectively. Coke was quantified byLECO. The catalysts showedTable 1 - %wt/wt of products aftercatalytic cracking of glucose. deactivation and the gas valuesTemperature (K)(%wt/wt) presented in Table 1 is an%wt/wt673 743 793 853 average of 15 and 60 minutes of timeGas 3 7 28 38 on stream. Coke and organic phaseCoke 21 32 20 20 were less affected by temperatureOrganic Phase 12 5 7 20 while gas remarkable increased andAqueous Phase 64 56 45 24 aqueous phase decreased. The mainproducts in the gas phase were CO, ethylene and propylene, the organic phaseconsisted of mainly phenol and 5-hydroxymethilfurfural and aqueous phase is underinvestigation. The blank tests produced less gas and more aqueous fraction than thecatalytic cracking.References:[1]. S. Yaman, Energy Conversion and Management , 2004, 45, 651.[2]. S. Vitolo, M. Seggiani, P. Frediani, G. Ambrosini and L. Politi, Fuel, 1999, 78, 1147.[3]. J.D. Adjaye and N.N. Bakhshi, Biomass and Bioenergy, 1995, 8, 131.Acknowledgements: PRH01-ANP and Petrobras for financial support.106