Wet Torrefaction of forest Residues – Combustion Kinetics. (August 2015)

• Record Type: Journal Article
• Authors: Bach, Quang-Vu; Tran, Khanh-Quang
• Is Part Of: Energy procedia. Volume 75(2015)
• Page Start: 168
• Page End: 173
• Publication Date: 2015-08
• Subjects: Combustion kinetics -- Kinetic modelling -- Wet torrefaction -- Forest residues.; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2015.07.279
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: Fresh branches of Norway spruce and birch were torrefied in hot compressed water at varied temperatures(175, 200, or 225°C) and for 30 minutes. The combustion of untreated and torrefied branchesin synthetic air (21% O2 and 79% N2 ) wasexperimentally studied by means ofa thermogravimetric analyzer, followed by a kinetic analysis adopting the distributed activation energy model. It appears that, wet torrefaction has significant effects on the combustion reactivity of forest residues. Compared with the raw materials, wet-torrefied branches are less reactive during devolatilization, but more reactive in the char combustion stage.