Fast pyrolysis of peanut shells: study of Volatile Organic Compounds identified in the gas phase and their atmospheric impact

FABRICO AGUIRRE, MARÍA L. NIEVA LOBOS; MARÍA A. LÓPEZ BASTO; MARIANO TERUEL, ELIZABETH L. MOYANO, MARÍA BELÉN BLANCO .

Bulletin of Environmental Contamination & Toxicology

Springer

Año: 2022

1432-0800

he biomass conversion technologies, especially different types of pyrolysis, have been intensively studied to improve biomass energy transformation suggesting a low impact on the environment. In particular, fast pyrolysis of biomass is considered to be a thermal process in which the starting material is converted to bio-oil, char and gas products. In this work, volatile organic compounds (VOCs) of the gaseous fraction of peanut shells fast pyrolysis were collected and identified at atmospheric pressure. Aromatic compounds, hydrocarbons, furans and other oxygenated compounds were identified using Solid Phase Microextraction (SPME) and Gas Chromatography coupled to Mass Spectrometry (CG-MS) as a detection system. The composition of volatiles was analyzed and compared with the constituents of liquid fraction for comparative purposes. Atmospheric implications of the main compounds identified in the gases fraction were assessed by determining tropospheric lifetimes of the VOCs identi