http://www.cnr.it/ontology/cnr/individuo/prodotto/ID294215

Production and characterization of biochar from three-phase olive mill waste through slow pyrolysis (Articolo in rivista)

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Production and characterization of biochar from three-phase olive mill waste through slow pyrolysis (Articolo in rivista) (literal)

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Alternative label

Hmid A.; Mondelli D.; Fiore S.; Fanizzi F.P.; Al Chami Z.; Dumontet S. (2014)
Production and characterization of biochar from three-phase olive mill waste through slow pyrolysis
in Biomass & bioenergy; PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD (Regno Unito)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Hmid A.; Mondelli D.; Fiore S.; Fanizzi F.P.; Al Chami Z.; Dumontet S. (literal)

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Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli 'Parthenope', Via Ammiraglio Ferdinando Acton 38, Napoli, 80133, Italy; CIHEAM Istituto Agronomico Mediterraneo di Bari, Via Ceglie 9, Valenzano Bari, 70010, Italy; Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università degli Studi di Bari 'Aldo Moro', Piazza Umberto I 1, Bari, 70121, Italy; Institute of Methodologies for Environmental Analysis-CNR, C.da S. Loja - Zona Industriale, Tito Scalo, Potenza, 85050, Italy; Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Campus Ecotekne, Via provinciale Lecce-Monteroni, Lecce, 73100, Italy (literal)

Titolo

Production and characterization of biochar from three-phase olive mill waste through slow pyrolysis (literal)

Abstract

The influence of temperature and heating rate on the yield and properties of biochar derived from pyrolysis of solid olive mill waste (pomace) was investigated. Three pyrolysis temperatures (430 +/- 10 degrees C, 480 +/- 10 degrees C and 530 +/- 10 degrees C) and 3 heating rates (25 degrees C min(-1), 35 degrees C min(-1) and 45 degrees C min(-1)) were studied. The biochar production was carried out using a vertical downdraft gasifier. Increasing the pyrolysis temperature, and/or the heating rate, the biochar yield lowered, the C content and biochar aromaticity increased and the surface functional groups were reduced. The highest biochar yield was obtained by low pyrolysis temperature (430 +/- 10 degrees C) and low heating rate (25 degrees C min(-1)). This biochar is characterized by a high heating value (31 MJ/kg) that makes it a possible fuel candidate and, in the meantime, due to its high concentration in C (70.2%-84.1%), low electrical conductivity (0.28 dS m(-1)-0.47 dS m(-1)) and the lack of phytotoxicity it is suitable for amendment in agricultural soils and for long term carbon sequestration. (literal)

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