URI | http://purl.tuc.gr/dl/dias/27AF38A0-F137-4576-B290-35F7806DCC1C | - |
Αναγνωριστικό | http://www.sciencedirect.com/science/article/pii/S0016236110006605 | - |
Αναγνωριστικό | https://doi.org/10.1016/j.fuel.2010.12.001 | - |
Γλώσσα | en | - |
Μέγεθος | 8 pages | en |
Τίτλος | Gasification of waste biomass chars by carbon dioxide via thermogravimetry. Part I. Effect of mineral matter | en |
Δημιουργός | Vamvouka Despoina | en |
Δημιουργός | Βαμβουκα Δεσποινα | el |
Δημιουργός | Karouki E. | en |
Δημιουργός | Sfakiotakis Stylianos | en |
Δημιουργός | Σφακιωτακης Στυλιανος | el |
Εκδότης | Elsevier | en |
Περίληψη | A series of carbon dioxide gasification tests of waste biomass chars were performed in a thermogravimetric analysis system, at non-isothermal heating conditions. The effects of the inorganic constituents of the fuels on thermal conversion characteristics were examined. Reaction rates were determined by developing a power law model.
The bulk of char gasification process occurred between 800 and 950 °C. Maximum reaction rate and conversion were exhibited by waste paper char, due to its higher surface area.
Inherent alkaline and alkaline earth carbonates and sulphates acted as catalysts, by increasing the reactivity of the fuels in carbon dioxide and causing their degradation to start at lower temperatures (60–75 °C).
The kinetic model fitted the experimental results accurately. Activation energy values and reaction order ranged from 180 to 370 kJ/mol and 0.4 to 0.6, respectively, among the chars, indicating a chemically controlled process. | en |
Τύπος | Peer-Reviewed Journal Publication | en |
Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
Ημερομηνία | 2015-10-27 | - |
Ημερομηνία Δημοσίευσης | 2011 | - |
Θεματική Κατηγορία | Waste biomass | en |
Θεματική Κατηγορία | Gasification | en |
Θεματική Κατηγορία | Kinetics | en |
Θεματική Κατηγορία | Mineral matter | en |
Βιβλιογραφική Αναφορά | D. Vamvuka, Ε. Κarouki and S. Sfakiotakis, “Gasification of waste biomass chars by carbon dioxide via thermogravimetry. Part I. Effect of mineral matter.”, Fuel, vol. 90, no. 3, pp. 1120-1127, Mar. 2001. doi:10.1016/j.fuel.2010.12.001 | el |