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Title: THE KINETIC RESEARCH OF CELLULOSE CONVERSION TO POLYOLS
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THE KINETIC RESEARCH OF CELLULOSE CONVERSION TO POLYOLS
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1314-2704
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English
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17
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42
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This work is aimed at studying of the kinetics of the cellulose hydrolytic hydrogenation process. In the course of the study, the methodology of the process in a high-pressure reactor under subcritical water conditions in the presence of the optimal synthesised catalyst, 3% Ru based on hypercrosslinked polystyrene MN 270 (Purolite Ltd, UK) (3% Ru/MN 270) was developed. The optimal parameters of the cellulose hydrolytic hydrogenation process were selected: the temperature ? 205 °C, the hydrogen partial pressure ? 6 MPa, reaction time ? 60 min, Ru/cellulose ratio (mmol Ru in the composite per 1 g of cellulose) ? 0.042/1, ruthenium content in the composite ? 3% (by weight). Under these conditions, cellulose conversion was 64.0%, sorbitol selectivity was 43.5%. The mechanism of the cellulose conversion in subcritical water in the presence of 3%Ru/MN 270 catalyst was proposed. Besides, an adequate kinetic model of the cellulose conversion process was selected basing on the proposed mechanism. The kinetic parameters for the selected model were calculated: activation energy = 45 kJ/mol, the pre-exponential factor K0 = 8.92·106, the reaction rate constant K = 0.102713 (mol/mol)?s-1.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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591-598
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29 June - 5 July, 2017
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website
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cdrom
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3764
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cellulose; hydrolytic hydrogenation; Ruthenium; hypercrosslinked polystyrene
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