Skip to Main content Skip to Navigation

Catalytic methods of cellulose transformation in pure water into valuable chemical substances

Abstract : The PhD project was devoted to search for and to develop effective multifunctional catalysts and catalytic one-stage processes (hydrolysis-dehydration, hydrolysis-oxidation) for transformation of cellulose to valuable chemicals (glucose, 5-HMF, formic acid). These products are also known as platform molecules and they seem to be promising for a wide range of application in food and chemical industries and for fuel production. In this project, systematic investigations of the formic acid synthesis in the presence of vanadium-containing HPA catalysts was first conducted; the influence of the catalyst composition and process parameters on the yield of the target product was studied. The obtained FA yield (66 %) was superior to all the results reported in literature. The NbOx/ZrO2 catalysts were applied for the first time for hydrolysis-dehydration of activated microcrystalline cellulose in pure water. High yields of glucose and 5-HMF (22 and 16 %, respectively) were observed. Carbon catalysts based on modified Sibunit material was used for the first time for cellulose hydrolysis-dehydration. The yields of glucose (up to 74 % in a flow reactor) and 5-HMF (up to 21 % in a static reactor) were obtained in the presence of Sibunit modified by sulfation and/or oxidation; these are much superior to the results on carbon catalytic systems reported in literature. The relation between the activity to hydrolysis-dehydration and the method of the carbon activation was thoroughly studied. Investigations of the mechanism and kinetics of cellulose hydrolysis-dehydration in the presence of solid acid catalysts were also carried out.
Document type :
Complete list of metadatas

Cited literature [266 references]  Display  Hide  Download
Contributor : Abes Star :  Contact
Submitted on : Monday, January 1, 2018 - 1:35:32 AM
Last modification on : Thursday, May 17, 2018 - 5:36:03 AM
Long-term archiving on: : Wednesday, May 2, 2018 - 10:15:56 AM


Version validated by the jury (STAR)


  • HAL Id : tel-01673819, version 1



Nikolay Gromov. Catalytic methods of cellulose transformation in pure water into valuable chemical substances. Material chemistry. Université de Bordeaux, 2016. English. ⟨NNT : 2016BORD0156⟩. ⟨tel-01673819⟩



Record views


Files downloads