RESPONSE SURFACE OPTIMIZATION STUDIES OF THE ACID-CATALYSED HYDROLYSIS OF HAZELNUT SHELLS

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Gazi University Journal of Science Part A: Engineering and Innovation
Volume:3 Issue:3
RESPONSE SURFACE OPTIMIZATION STUDIES OF THE ACID-CATALYSED HYDROLYSIS OF HAZELNUT SHELLS

RESPONSE SURFACE OPTIMIZATION STUDIES OF THE ACID-CATALYSED HYDROLYSIS OF HAZELNUT SHELLS

Authors : Yeşim ARSLAN

Pages : 51-61

View : 60 | Download : 10

Publication Date : 2015-03-12

Article Type : Other Papers

Abstract :The utilization of hazelnut shells as a renewable and low cost lignocellulosic biomass for bioethanol production requires the optimization of hydrolysis step. A comprehensive, experimental and modeling study on the acid hydrolysis of hazelnut shells is reported at variable sulfuric acid concentrations insert ignore into journalissuearticles values(0.1-0.7 M); and temperatures insert ignore into journalissuearticles values(100-120 o C); where a solid to liquid ratio is 1/7. The influence of the acid concentration, the temperature and reaction time on reducing sugar as well as the degradation product furan levels were evaluated by performing a 3 3 full factorial experimental design. The analysis of the optimum combinations of independent variables indicates that a high acid concentration and a moderate temperature may provide the optimum acid hydrolysis conditions for hazelnut shells.
Keywords : Hazelnut shells, hemicellulose, acid hydrolysis, factorial experimental design

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