hydrogen-rich syngas production from gasification and pyrolysis of solar dried sewage sludge: experimental and modeling investigations
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2017
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Abstract
Solar dried sewage sludge (SS) conversion by pyrolysis and gasification processes has been performed, separately, using two laboratory-scale reactors, a fixed-bed pyrolyzer and a downdraft gasifier, to produce mainly hydrogen-rich syngas. Prior to SS conversion, solar drying has been conducted in order to reduce moisture content (up to 10%). SS characterization reveals that these biosolids could be appropriate materials for gaseous products production. The released gases from SS pyrolysis and gasification present relatively high heating values (up to 9.96 MJ/kg for pyrolysis and 8.02 9.96 MJ/kg for gasification) due to their high contents of H2 (up to 11 and 7 wt%, resp.) and CH4 (up to 17 and 5 wt%, resp.). The yields of combustible gases (H2 and CH4) show further increase with pyrolysis. Stoichiometric models of both pyrolysis and gasification reactions were determined based on the global biomass formula, CαHβOγNδSε, in order to assist in the products yields optimization.
| Reference Key |
trabelsi2017biomedhydrogen-rich
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|---|---|
| Authors | ;Aïda Ben Hassen Trabelsi;Amina Ghrib;Kaouther Zaafouri;Athar Friaa;Aymen Ouerghi;Slim Naoui;Habib Belayouni |
| Journal | spectrochimica acta - part a: molecular and biomolecular spectroscopy |
| Year | 2017 |
| DOI |
10.1155/2017/7831470
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