<p> NCC6- 6th Catalysis Conference 27-30/04/2016, Bursa</p><p>Catalytical performance of transition metal dopped montmorillenit for biomass hydrolysis</p><p>Emir Zafer Hoşgün a, Ebru Tunça, Halit Levent Hoşgünb, Berrin Bozana</p><p> a Anadolu University, Engineering Faculty, Chemical Engineering Department, Eskisehir. b Bursa Technical University, Engineering Faculty, Chemical Engineering Department, Bursa.</p><p>In recent years, hydrolysis of cellulose with solid catalysts has taken attention by many researchers. This process is an environmentally friendly technology with overcomes problems associated with less-environmentally friendly chemicals and product purification. Montmorillonite is one of the most common 2:1 type clays. It is widely dispersed on the earth's surface which has high hydrothermal stability and large surface area [1]. In this study, hazelnut shells were used as biomass transition metals doped montmorillonite used as heterogeneous catalyst. The doped montmorillonite catalyst were prepared by impregnation methods using Cr(NO3)3, CuNO3, Fe(NO3)3, Co(NO3)2 and Zn(NO3)2. Metal nitrates (10 wt%) were dissolved in an ethanol-water mixture (50-50%) and montmorillonite was added into the solution and mixed for 24 h. Collected clay was washed with DI water and dried under vacuum at 40°C. Catalytic hydrolysis were carried out in a high temperature- high pressure stainless steel reactor (Parr, USA) reactor. Reaction conditions were 180°C, 2 hr and 1/100 catalyze/biomass ratio. The solution was kept liquid under N2 atmosphere (10 bar). At the end of the treatment, the treated slurry was collected and filtered using filter paper to separate the solid and liquid fractions for further analysis. Compositions of liquid products were analyzed by high-performance liquid chromatography (HPLC) [2]. All the catalysts synthesized in this study were effective on the furfural and HMF yield and selectivity from the biomass. Cr-MMT was the most effective one, followed by Cu-MMT, Zn- MMT and Fe-MMT. 30.38 mg furfural and 1.96 mg HMF was produced per gram of the biomass in the presence of the Cr-MMT catalyst. </p><p>References [1] Tong, D. S., Xia, X., Luo, X. P., Wu, L. M., Lin, C. X., Yu, W. H., & Zhong, Z. K. (2013). Catalytic hydrolysis of cellulose to reducing sugar over acid-activated montmorillonite catalysts. Applied Clay Science, 74, 147-153. [2] Sluiter, A., Hames, B., Ruiz, R., Scarlata, C., Sluiter, J. ve Templeton, D. (2006), “Determination of sugars, byproducts, and degradation products in liquid fraction process samples,” National Renewable Energy Laboratory, Golden, CO.</p>