Autors: Ferreira R., Petrova, T. S., Ferreira A.F., Costa M., Naydenova, I. I., Atanasova-Vladimirova S., Ranguelov B.
Title: Size-segregated particulate matter from gasification of Bulgarian agro-forest biomass residue
Keywords: gasification; rapeseed; sunflower husk; softwood; particulat

Abstract: The main purpose of the present work was to evaluate the efficiency of the gasification process of three different types of agro-forest biomass residue (rapeseed, softwood, and sunflower husks) along with the characterization of size-segregated particulates’ emissions. The experiments were carried out in a drop tube furnace (DTF), using two different gasifying agents (O2/N2 and O2/N2/CO2) at atmospheric pressure and a constant temperature of 1000 °C. In focus was the effect of biomass and the gasifying agent on syngas composition (CO, H2, CH4, and CO2), cold gas and carbon conversion efficiency, and on the emissions of by-products, such as particulate matter (PM), known for having negative environmental and health impacts. The collected particulates were characterized by SEM/EDS and XPS analysis. The results reveal that: (i) the introduction of CO2 increased the production of CO and CH4 and syngas’ lower heating value (LHV), thus leading to higher cold gas and carbon conversion effici

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    , vol. 14, issue 2, 2021, Switzerland, DOI 10.3390/en14020385

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