Effects of pyrolysis temperature and pressure on agronomic properties of biochar

Balmuk, Gizem ; Videgain, María (Universidad de Zaragoza) ; Manyà, Joan J. (Universidad de Zaragoza) ; Duman, Gozde ; Yanik, Jale

Resumen: This study focused on identifying the effect of pyrolysis temperature and pressure for lignocellulosic biomass on agronomic properties of biochar. For this purpose, two biomasses (vine shoots -VS and corn stover -CS) were pyrolyzed at different temperatures (350 and 500 °C) under different pressures (0.1 and 0.5 MPa) for a residence time of 60 min. Agronomic properties of biochars (including stability, pH, CEC, EC, bulk density, surface properties, and water holding capacity) were determined. Pyrolysis temperature impacted greatly on the biochar stability and the textural properties. The dependence of other properties of biochars on pressure and temperature varied as a function of the type of feedstock. In addition, the effects of pyrolysis temperature and pressure on 16 US EPA PAH concentration in biochar were also investigated. The PAH concentrations ranged between 0.822 and 5.112 mg kg−1. On average, VS-derived biochar had higher PAH concentrations than CS-derived one. The structural differences in biomass played a key role in determining the effect of pyrolysis conditions on total PAH concentration.

Idioma: Inglés

DOI: 10.1016/j.jaap.2023.105858

Año: 2023

Publicado en: JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 169 (2023), 105858 [8 pp.]
ISSN: 0165-2370

Factor impacto JCR: 5.8 (2023)

Categ. JCR: CHEMISTRY, ANALYTICAL rank: 10 / 106 = 0.094 (2023) - Q1 - T1
Categ. JCR: ENGINEERING, CHEMICAL rank: 29 / 170 = 0.171 (2023) - Q1 - T1
Categ. JCR: ENERGY & FUELS rank: 58 / 171 = 0.339 (2023) - Q2 - T2

Factor impacto CITESCORE: 9.1 - Fuel Technology (Q1) - Analytical Chemistry (Q1)

Factor impacto SCIMAGO: 1.146 - Fuel Technology (Q1) - Analytical Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MCIU-ERANET-MED/PCIN-2017-048/MEDWASTE

Tipo y forma: Article (PostPrint)

Área (Departamento): Area Ingeniería Agroforestal (Dpto. CC.Agrar.y Medio Natural)
Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)