Efika, Chidi E., Onwudili, Jude A. and Williams, Paul T. (2018). Influence of heating rates on the products of high-temperature pyrolysis of waste wood pellets and biomass model compounds. Waste Management, 76 , pp. 497-506.
Abstract
The effect of heating rates ranging from 5 °C min−1 to 350 °C min−1 on the yields of pyrolysis products of wood and its main pseudo-components (cellulose, hemicellulose and lignin) have been investigated at a temperature of 800 °C in a horizontal fixed bed reactor. Results showed a successive dramatic increase and decrease in gas and liquid yields, respectively, while the yields of solid products showed a gradual decrease as heating rates increased. Increased gas formation and an increasingly aromatic oil/tar support the theory of rapid devolatilization of degradation products with increasing heating rate, leading to extensive cracking of primary pyrolysis vapours. Solid products with coal-like calorific value and large surface areas were obtained. CO became the dominant gas both on a mass and volume basis, at the heating rate of 350 °C min−1 for all samples except xylan, which also produced a significant yield of CO2 (20.3 wt% and 25.4 vol%) compared to the other samples. Cellulose produced a gas product with highest calorific value of 35 MJ kg−1 at the highest heating rate. Results also indicate that the three main pseudo-components of biomass each exert a different influence on the products of high temperature pyrolysis of woody biomass.
Divisions: | College of Engineering & Physical Sciences College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI) |
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Additional Information: | © 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International |
Publication ISSN: | 1879-2456 |
Last Modified: | 29 Nov 2023 11:53 |
Date Deposited: | 26 Mar 2018 07:30 |
Full Text Link: |
http://linkingh ... 956053X18301636 10.1016/j.wasman.2018.03.021 |
Related URLs: | PURE Output Type: | Article |
Published Date: | 2018-06 |
Published Online Date: | 2018-03-17 |
Accepted Date: | 2018-03-09 |
Authors: |
Efika, Chidi E.
Onwudili, Jude A. Williams, Paul T. |
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