Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/105561
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Gasification reactivity and physicochemical properties of the chars from raw and torrefied wood, grape marc, and macroalgae
Author: Guo, P.
Saw, W.
Van Eyk, P.
Stechel, E.
De Nys, R.
Ashman, P.
Nathan, G.
Citation: Energy and Fuels, 2017; 31(3):2246-2259
Publisher: American Chemical Society
Issue Date: 2017
ISSN: 0887-0624
1520-5029
Statement of
Responsibility: 
Peijun Guo, Woei L. Saw, Philip J. van Eyk, Ellen B. Stechel, Rocky de Nys, Peter J. Ashman and Graham J. Nathan
Abstract: The gasification reactivity of the chars from both raw and torrefied wood, grape marc, and macroalgae has been investigated in this paper. The variations in char gasification reactivity were explained using further investigation of the physicochemical characteristics of the char that can influence the gasification reactivity, i.e., specific surface area, uniformity of the carbonaceous structure, and concentration of alkali metals (Na and K). It was found that the influence of the torrefaction process on the char gasification reactivity strongly depends upon the solid fuel properties and pyrolysis conditions. For a pyrolysis temperature of 800 °C, the gasification reactivity of the chars from both the torrefied grape marc and the torrefied macroalgae was lower than that of the chars from their corresponding raw fuels. This is mainly due to a lower specific surface area and a lower content of alkali metals (Na and/or K) in the chars produced from both the torrefied grape marc and the torrefied macroalgae than for those chars produced from their corresponding raw fuels. However, the opposite influence of torrefaction was found for the macroalgae char when the pyrolysis temperature was increased to 1000 °C. This is attributed mostly to the higher Na content and the more amorphous carbonaceous structure for the torrefied macroalgae char than for the raw macroalgae char.
Rights: © 2017 American Chemical Society
RMID: 0030065975
DOI: 10.1021/acs.energyfuels.6b02215
Appears in Collections:Chemical Engineering publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.