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Article

Biomass Thermochemical Conversion via Pyrolysis with Integrated CO2 Capture

1
AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Krakow, Poland
2
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
*
Authors to whom correspondence should be addressed.
Energies 2020, 13(5), 1050; https://doi.org/10.3390/en13051050
Received: 30 January 2020 / Revised: 18 February 2020 / Accepted: 25 February 2020 / Published: 26 February 2020
The presented work is focused on biomass thermochemical conversion with integrated CO2 capture. The main aim of this study was the in-depth investigation of the impact of pyrolysis temperature (500, 600 and 700 °C) and CaO sorbent addition on the chemical and physical properties of obtained char and syngas. Under the effect of the pyrolysis temperature, the properties of biomass chars were gradually changed, and this was confirmed by examination using thermal analysis, scanning electron microscopy, X-ray diffraction, and porosimetry methods. The chars were characterised by a noticeable carbon content (two times at 700 °C) resulting in a lower O/C ratio. The calculated combustion indexes indicated the better combustible properties of chars. In addition, structural morphology changes were observed. However, the increasing pyrolysis temperature resulted in changes of solid products; the differences of char properties were not significant in the range of 500 to 700 °C. Syngas was analysed using a gas chromatograph. The following main components were identified: CO, CO2, CH4, H2 and C2H4, C2H6, C3H6, C3H8. A significant impact of CaO on CO2 adsorption was found. The concentration of CO2 in syngas decreased with increased temperature, and the highest decrease occurred in the presence of CaO from above 60% to below 30% at 600 °C. View Full-Text
Keywords: pyrolysis; biomass; pine wood; CO2 capture; CaO solid sorbent; chars; syngas; hydrogen; physicochemical structure pyrolysis; biomass; pine wood; CO2 capture; CaO solid sorbent; chars; syngas; hydrogen; physicochemical structure
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MDPI and ACS Style

Sieradzka, M.; Gao, N.; Quan, C.; Mlonka-Mędrala, A.; Magdziarz, A. Biomass Thermochemical Conversion via Pyrolysis with Integrated CO2 Capture. Energies 2020, 13, 1050. https://doi.org/10.3390/en13051050

AMA Style

Sieradzka M, Gao N, Quan C, Mlonka-Mędrala A, Magdziarz A. Biomass Thermochemical Conversion via Pyrolysis with Integrated CO2 Capture. Energies. 2020; 13(5):1050. https://doi.org/10.3390/en13051050

Chicago/Turabian Style

Sieradzka, Małgorzata, Ningbo Gao, Cui Quan, Agata Mlonka-Mędrala, and Aneta Magdziarz. 2020. "Biomass Thermochemical Conversion via Pyrolysis with Integrated CO2 Capture" Energies 13, no. 5: 1050. https://doi.org/10.3390/en13051050

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