The results of the degradation of glycerol in supercritical water show that conversion of pure gl... more The results of the degradation of glycerol in supercritical water show that conversion of pure glycerol (58 % at 550 \(^0\)C) without a catalyst can be achieved, but complete conversion of pure glycerol over Fe\(_2\)O\(_3\)+Cr\(_2\)O\(_3\) or Fe\(_3\)O\(_4\) catalysts (at 550\(^0\)C, 250 barg, <15 wt% feed concentration, 10.1 g and 4 mm catalyst particles) can be reached. Crude glycerol conversion decreases from 100 to 67 mole% and 100 to 74 mole% over the same catalysts and conditions. Hydrogen yield was as high as 61 mole% and 49 mole % when crude glycerol was gasified over Fe\(_3\)O\(_4\) and Fe\(_2\)O\(_3\)+Cr\(_2\)O\(_3\), respectively. 64 mole% of syngas was obtained with minimum 4:1 mole ratio of H\(_2\):CO. Hydrocarbon yields (69 mole% for ethylene and 22 mole% for methane) were obtained and this decreased with temperature as resulted of thermal cracking. Small amounts of char (<3.1 wt%) and carbon deposition on the catalyst surface and inside the reactor wall was obse...
Where a licence is displayed above, please note the terms and conditions of the licence govern yo... more Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive.
The results of the degradation of glycerol in supercritical water show that conversion of pure gl... more The results of the degradation of glycerol in supercritical water show that conversion of pure glycerol (58 % at 550 \(^0\)C) without a catalyst can be achieved, but complete conversion of pure glycerol over Fe\(_2\)O\(_3\)+Cr\(_2\)O\(_3\) or Fe\(_3\)O\(_4\) catalysts (at 550\(^0\)C, 250 barg, <15 wt% feed concentration, 10.1 g and 4 mm catalyst particles) can be reached. Crude glycerol conversion decreases from 100 to 67 mole% and 100 to 74 mole% over the same catalysts and conditions. Hydrogen yield was as high as 61 mole% and 49 mole % when crude glycerol was gasified over Fe\(_3\)O\(_4\) and Fe\(_2\)O\(_3\)+Cr\(_2\)O\(_3\), respectively. 64 mole% of syngas was obtained with minimum 4:1 mole ratio of H\(_2\):CO. Hydrocarbon yields (69 mole% for ethylene and 22 mole% for methane) were obtained and this decreased with temperature as resulted of thermal cracking. Small amounts of char (<3.1 wt%) and carbon deposition on the catalyst surface and inside the reactor wall was obse...
Where a licence is displayed above, please note the terms and conditions of the licence govern yo... more Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive.
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