CHARACTERISTICS OF ULTRAFINE PM EMITTED DURING GASIFICATION OF BIOMASS

Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, DOI: https://doi.org/10.48365/ENVR-2020.1.11
Iliyana Naydenova, Tsvetelina Petrova, Ognyan Sandov, Ricardo Ferreira, Rositsa Velichkova, Mario Costa

Abstract:
The present work aims at characterising ultrafine particulate matter (PM) that was emitted during biomass gasification in a drop tube furnace (DTF). Three different types of agricultural residue were gasified using the following gasifying agents: O2/N2 and O2/N2/CO2. The PM in the flue gases were sampled, using 13 stage impactor. Particulates, having aerodynamic diameter of 1 and 0.65 μm (PM1 and PM0.65) had the highest mass fraction among all other particulates with aerodynamic diameter up to 10 μm. Thus, the effects of biomass and gasifying agent on particles’ mass distribution were studied. Besides, PM1 and PM0.65 were characterised using X-ray fluorescence (XRF) analysis. The PM elemental composition confirmed that volatile ash compounds, such as K and Cl are typical constituents of the ultrafine particulates, when biomass from agricultural residue (colza and sunflower husks) was gasified.

Keywords:
particulate matter, biomass, gasification

Acknowledgements:
The PM analysis was funded through the Internal Competition of Technical University of Sofia – 2020 for the scientific project “Perspective leaders”, Contract № 201ПР0017-10/26.05.2020. The authors would also like to acknowledge the financial support from the National Science Program “Environmental Protection and Reduction of Risks of Adverse Events and Natural Disasters”, approved by the Resolution of the Council of Ministers No 577/17.08.2018 and supported by the Ministry of Education and Science of Bulgaria (Agreement No D01-230/06.12.2018 and Agreement No Д01-322/18.12.2019).

Author information:
Author: Iliyana Naydenova
E-mail: inaydenova@tu-sofia.bg
Affiliation: College of Energy and Electronics, Technical University of Sofia

Author: Tsvetelina Petrova
https://orcid.org/0000-0001-8482-4792
E-mail: tzvetelina.petrova@tu-sofia.bg
Affiliation: College of Energy and Electronics, Technical University of Sofia

Author: Ognyan Sandov
https://orcid.org/0000-0001-7697-669X
E-mail: o.sandov@tu-sofia.bg
Affiliation: College of Energy and Electronics, Technical University of Sofia

Author: Ricardo Ferreira
E-mail: ricardo1995ferreira@gmail.com
Affiliation: Mechanical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa

Author: Rositsa Velichkova
http://orcid.org/0000-0003-3757-8685
E-mail: rvelichkova@tu-sofia.bg
Affiliation: Faculty of Power Engineering and Power Machines, Technical University of Sofia

Author: Mario Costa
E-mail:
Affiliation: Mechanical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa

How to cite:
Naydenova, I., Petrova, T., Sandov, O., Ferreira, R., Velichkova, R., & Costa, M. (2020). Characteristics of Ultrafine PM Emitted During Gazification of Biomass. Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 123-133. https://doi.org/10.48365/ENVR-2020.1.11