Гидролиз-восстановлен ие целлюлозы в сорбитол в присутствии твердых бифункциональных катализаторов Ru-ГПК/ZrO2 И Ru-ГПК/Nb2O5
| Parent link: | Перспективы развития фундаментальных наук=Prospects of Fundamental Sciences Development: сборник научных трудов XIV Международной конференции студентов, аспирантов и молодых ученых, г. Томск, 25-28 апреля 2017 г./ Национальный исследовательский Томский политехнический университет (ТПУ) ; под ред. И. А. Курзиной, Г. А. Вороновой.— , 2017 Т. 2 : Химия.— 2017.— [С. 61-63] |
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| Other Authors: | , , |
| Summary: | Заглавие с экрана The hydrolysis-hydrogenation is one of the most perspective ways of cellulose processing to valuable sorbitol product. It is widely used in the food and pharmaceutical industries as a sweetener and seems to be a perspective platform molecule for the chemical industry. The aim of the present work was the development of solid bifunctional (acid-reductive) catalyst based on Ru-HPA/ZrO2 and Ru-HPA/Nb2O5 for the production of sorbitol from inedible cellulose. Four samples of 3%Ru-HPA/ZrO2 and Ru-HPA/Nb2O5 differed from each other by the support calcination temperature (450 °C and 550 °C) were prepared and characterized by N2 absorption, TEM, IR, AES. High stability of the catalysts under the reaction conditions was demonstrated. The catalysts were tested in the hydrolysis-hydrogenation of microcrystalline cellulose to sorbitol under 180 °C and 50 bar of H2. HPLC analysis demonstrated for sorbitol to be the main reaction product. Mannitol and negligible amount of glucose were also formed. 5-Hydroxymethylfurfural hydrolysis product was found in the presence of a support without metal. The maximal yield of sorbitol equal to 49% was reached over 3%Ru-HPA/ZrO2 calcinated at 550 °C. |
| Language: | Russian |
| Published: |
2017
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| Subjects: | |
| Online Access: | http://earchive.tpu.ru/handle/11683/44487 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=624489 |