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OPTIMIZATION OF PROCESS CONDITIONS FOR THE CATALYTIC CONVERSION OF MICROCRYSTALLINE CELLULOSE INTO SUGAR ALCOHOLS
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Oleg Manaenkov; Olga Kislitsa; Antonina Stepacheva; Linda Nikoshvili; Valentina Matveeva
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10.5593/sgem2024/4.1
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1314-2704
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English
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24
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4.1
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• Prof. DSc. Oleksandr Trofymchuk, UKRAINE
• Prof. Dr. hab. oec. Baiba Rivza, LATVIA |
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The scale of annual reproduction of cellulose-containing biomass in nature allows us to draw an unambiguous conclusion that cellulose is the only source of raw materials for the chemical and fuel industries, representing a real alternative to fossil resources and, first of all, oil. Cellulose is the main component of plant biomass. According to some estimates, almost half of the organic carbon in the biosphere is contained in cellulose. Hydrolytic hydrogenation is a special case of carbohydrate hydrogenation. With regard to cellulose, the essence of the process is to combine the processes of its hydrolysis and hydrogenation of the resulting glucose. Cellulose is a difficult-to-process substrate, which determines the “harsh” reaction conditions for its hydrolytic hydrogenation. In this regard, it is important to optimize the reaction conditions in order to increase the yield of the target products - sorbitol and mannitol. In this study, the reaction conditions for the conversion of microcrystalline cellulose in the presence of Ru-containing polymeric catalysts (temperature, pressure H2, time, substrate/catalyst ratio, reactor volume) were optimized. As a result, the maximum selectivity for sorbitol was 43.5 %, mannitol - 3.7 % with a cellulose conversion of 64 %. Also, based on the results of the study, a mathematical model was proposed to formally describe the kinetics of hydrogenation/hydrogenolysis of glucose.
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conference
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
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24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
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Proceedings Paper
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STEF92 Technology
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First click on Radio Buttons above - Scopus or Clarivate format
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
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157-164
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1 - 7 July, 2024
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website
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9736
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cellulose, sorbitol, hydrogenolysis, ruthenium catalyst, hypercrosslinked polystyrene
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