Towards biochar and hydrochar engineering-influence of process conditions on surface physical and chemical properties, thermal stability, nutrient availability, toxicity and wettability

The impact of conversion process parameters in pyrolysis (maximum temperature, inert gas flow rate) and hydrothermal carbonization (maximum temperature, residence time and post-washing) on biochar and hydrochar properties is investigated. Pine wood (PW) and corn digestate (CD), with low and high ino...

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Detalles Bibliográficos
Autores: Diéguez Alonso, Alba|||0000-0002-4020-6594, Funke, Axel|||0000-0002-8425-1346, Anca-Couce, Andrés|||0000-0001-9261-0698, Rombolà, Alessandro Girolamo, Ojeda Castro, Franklin Gerardo, Bachmann, Jörg, Behrendt, Frank
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:201568
Acceso en línea:https://ddd.uab.cat/record/201568
https://dx.doi.org/urn:doi:10.3390/en11030496
Access Level:acceso abierto
Palabra clave:Pyrolysis
Hydrothermal carbonization
Biochar engineering
Porosity
Nutrients
Polycyclic aromatic hydrocarbon (PAH)
Descripción
Sumario:The impact of conversion process parameters in pyrolysis (maximum temperature, inert gas flow rate) and hydrothermal carbonization (maximum temperature, residence time and post-washing) on biochar and hydrochar properties is investigated. Pine wood (PW) and corn digestate (CD), with low and high inorganic species content respectively, are used as feedstock. CD biochars show lower H/C ratios, thermal recalcitrance and total specific surface area than PW biochars, but higher mesoporosity. CD and PW biochars present higher naphthalene and phenanthrene contents, respectively, which may indicate different reaction pathways. High temperatures (.

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