C-O Bond Hydrogenolysis of Aqueous Mixtures of Sugar Polyols and Sugars over ReOx-Rh/ZrO2 Catalyst: Application to an Hemicelluloses Extracted Liquor
Abstract
:1. Introduction
2. Results and Discussions
2.1. Characterization of Catalysts
2.2. Hydrogenolysis of Polyols or Sugars Separately
2.2.1. Comparison of Sorbitol and Glucose Hydrogenolysis
2.2.2. Comparison of Hydrogenolysis of Xylitol and Xylose
2.2.3. Discussion on Hydrogenolysis of Polyols vs. Hydrogenolysis of Sugars
2.3. Hydrogenolysis of Mixtures of Polyols and Sugars
2.3.1. Hydrogenolysis of Sorbitol/Xylitol Mixtures
2.3.2. Hydrogenolysis of Mixtures of Glucose/Xylose
2.4. Hydrogenolysis of Sugar Isomers
2.5. Hydrogenolysis of Hemicelluloses Liquor
3. Experimental
3.1. Catalyst Preparation
3.2. Maritime Pine Extraction and Hydrolysis
3.2.1. Extraction of Hemicelluloses
3.2.2. Analysis of Carbohydrates in Hemicellulose Extract
3.3. Catalyst Evaluation Experiments and Products Analysis
4. Summary
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Carbon Selectivity to Products (%) | Glucose | Mannose | Galactose | Xylose | Arabinose |
---|---|---|---|---|---|
C-O bond scission | 26.3 | 34.3 | 47.4 | 31.9 | 32.9 |
C-C products | 9.1 | 23.5 | 10.1 | 15.2 | 18.9 |
Cycles | 6.8 | 11.3 | 5.3 | 2.9 | 1.4 |
Isomers | 7.8 | 1.2 | 6.3 | 7.6 | 3.5 |
1 C-O breaking | 10 | 13.4 | 17.1 | 12.3 | 12.3 |
2 C-O breakings | 5.0 | 3.7 | 11.7 | 12.1 | 12.6 |
3 C-O breakings | 5.5 | 8.5 | 10.1 | 7.0 | 7.5 |
4 C-O breakings | 5.8 | 8.7 | 8.5 | 0.5 | 0.5 |
5 C-O breakings | - | - | - | - | - |
Glucose (mg L−1) | Xylose (mg L−1) | Mannose (mg L−1) | Galactose (mg L−1) | Arabinose (mg L−1) | |
---|---|---|---|---|---|
Non-hydrolyzed liquor | 35.3 | 235.7 | 113.6 | 95.0 | 818.8 |
Post-hydrolysis liquor | 1229.9 | 2195.2 | 5575.5 | 437.4 | 1088.8 |
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Mounguengui-Diallo, M.; Sadier, A.; Noly, E.; Da Silva Perez, D.; Pinel, C.; Perret, N.; Besson, M. C-O Bond Hydrogenolysis of Aqueous Mixtures of Sugar Polyols and Sugars over ReOx-Rh/ZrO2 Catalyst: Application to an Hemicelluloses Extracted Liquor. Catalysts 2019, 9, 740. https://doi.org/10.3390/catal9090740
Mounguengui-Diallo M, Sadier A, Noly E, Da Silva Perez D, Pinel C, Perret N, Besson M. C-O Bond Hydrogenolysis of Aqueous Mixtures of Sugar Polyols and Sugars over ReOx-Rh/ZrO2 Catalyst: Application to an Hemicelluloses Extracted Liquor. Catalysts. 2019; 9(9):740. https://doi.org/10.3390/catal9090740
Chicago/Turabian StyleMounguengui-Diallo, Modibo, Achraf Sadier, Eddi Noly, Denilson Da Silva Perez, Catherine Pinel, Noémie Perret, and Michèle Besson. 2019. "C-O Bond Hydrogenolysis of Aqueous Mixtures of Sugar Polyols and Sugars over ReOx-Rh/ZrO2 Catalyst: Application to an Hemicelluloses Extracted Liquor" Catalysts 9, no. 9: 740. https://doi.org/10.3390/catal9090740