Peer-reviewed articles 17,970 +


Pedro Maldonado; Giane G. Lenzi; Helder T. Gomes; Paulo Brito
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
For many years, oil derivatives, natural coal, and natural gas were used and still are, as primary energy supply due to their calorific potential, and their great availability on the planet. However, the utilization of these feedstocks causes greenhouse effects and helped in global warming, creating a general concern about this issue, and leading to the creation of urgent measures to overcome these problems. Hence, guidelines and public policies were granted to guarantee the reduction of emissions and increase the portion of renewable sources in the energy system production, namely the use of biofuels produced from waste biomass such as straw, stover, husks, and shells. Thermochemical processes can convert biomass sources into energy and/or fuels with a high heating value through high-temperature treatments. It comprises combustion, pyrolysis and gasification, which can be employed together or separated, depending on the need. The product of gasification is Synthesis Gas, comprehended mainly by hydrogen gas and carbon monoxide, which can be used posteriorly to produce electric energy. In this process, many parameters as temperature, pressure, gasifying agent, biomass composition, gasifier configuration, etc, influence the final composition of the gas. A challenge to show the feasibility of Syngas production is trying to know the conversion yields and its composition to evaluate the efficiency of the process. Simulating Software helps in this task, bringing real processes closer to virtual ones. Through UniSim Design software, this work main objective is the creation and implementation of a hybrid model (Kinetic and Equilibrium approaches) able to predict the lignocellulosic biomass gasification products for Downdraft and Updraft gasifiers, using different sources such as olive and corn agricultural wastes, and grape bagasse residue from wine culture.
[1] Paiva, M., Vieira, A., Gomes, H.T., Brito P., Simulation of a downdraft gasifier for production of syngas from different biomass feedstocks, ChemEngineering, vol. 5/issue 2, p 20, 2021.
[2] Vassilev, S.V., Baxter, D., Andersen, L.K., Vassileva, C.G., An overview of the chemical composition of biomass, Fuel, vol. 89/issue 5, pp 913-933, 2010.
[3] Trninic, M., Stojiljkovic, D., Manic, N., Skreiberg, O., Wang, L., Jovovic, A., A mathematical model of biomass downdraft gasification with an integrated pyrolysis model, Fuel, vol. 265, p 116867, 2020.
[4] Ajorloo, M., Ghodrat, M., Scott, J., Strezov, V., Recent advances in thermodynamic analysis of biomass gasification: a review on numerical modelling and simulation, J. Energy Inst., vol. 102, pp 395-419, 2022.
[5] Demirbas, A., Effect of temperature on pyrolysis products from biomass, Energy Sources, Part A, vol. 29/issue 4, pp 329-336, 2010.
[6] Hanif, M. U., Zwawi, M., Capareda, S.C., Iqbal, H., Algarni, M., Felemban, B.F., Bahadar, A., Waqas, A., Influence of pyrolysis temperature on product distribution and characteristics of anaerobic sludge, Energies, vol. 13/issue 1, p 79, 2020.
[7] Dang, Q., Zhang, X., Zhou, Y., Jia, X., Prediction and optimization of syngas production from a kinetic-based biomass gasification process model, Fuel Process. Technol., vol. 212, p 106604, 2021.
This work was carried out within the framework of the SUBe Project, ref.: PCIF/GVB/0197/2017, funded by the Portuguese Foundation of Science and Technology (FCT). The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES (PIDDAC) to CIMO (UIDB/00690/2020 and UIDP/00690/2020) and SusTEC (LA/P/0007/2021).
Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 06-08 December, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
06-08 December, 2022
Biomass valorization, gasification, modeling, UniSim Design software