1 This manuscript was accepted and published by Energy & Fuels, a journal of the American Chemical Society. DOI: 10.1021/ef4016075 ( http://dx.doi.org/10.1021/ef4016075 ). This manuscript was placed into the present public repository with the consent of the Editor of Energy & Fuels. Publication data of the final, corrected work: Tapasvi, D.; Khalil, R.; Várhegyi, G.; Tran, K.-Q.; Grønli, M.; Skreiberg, Ø.: Thermal decomposition kinetics of woods with an emphasis on torrefaction. Energy Fuels, 2013, 27, 6134-6145. doi: 10.1021/ef4016075 Thermal Decomposition Kinetics of Woods with Emphasis on Torrefaction Dhruv Tapasvi, † Roger Khalil, ‡ Gábor Várhegyi, *,§ Khanh-Quang Tran, † Morten Grønli, † and Øyvind Skreiberg ‡ † Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway ‡ SINTEF Energy Research, Postboks 4761 Sluppen, NO-7465 Trondheim, Norway § Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, PO Box 17, Budapest, Hungary 1525 KEYWORDS: Birch; spruce; pyrolysis kinetics; thermogravimetry; torrefied wood; distributed activation energy model. ABSTRACT. The pyrolysis kinetics of Norwegian spruce and birch wood was studied to obtain information on the kinetics of torrefaction. Thermogravimetry (TGA) was employed with nine different heating programs, including linear, stepwise, modulated and constant reaction rate (CRR) experiments. The 18 experiments on the two feedstocks were evaluated simultaneously by the