Combustion of furniture wood waste and solid wood: Kinetic study and evolution of pollutants. (15th March 2017)

• Record Type: Journal Article
• Authors: Moreno, Ana Isabel; Font, Rafael; Conesa, Juan A.
• Is Part Of: Fuel. Volume 192(2017)
• Page Start: 169
• Page End: 177
• Publication Date: 2017-03-15
• Subjects: Wood waste -- Thermogravimetric analysis (TGA) -- Kinetic study -- Combustion -- Gases evolved; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2016.12.022
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: The burnout temperature of furniture wood waste is higher than untreated wood. Satisfactory combustion kinetic models are obtained from dynamic and isothermal runs. More than 100 volatile and semi-volatile compounds evolved in fuel-rich combustions at 850 °C are analyzed. Some nitrogenated organic compounds have been found in the combustion of furniture wood waste. Abstract: This work is focused on the combustion processes of wood waste. Two kinds of waste have been studied: furniture wood waste (treated and used wood) and solid wood from factories (untreated wood). A kinetic study has been carried out for each material in air and an N2 :O2 9:1 atmosphere with dynamic and dynamic + isothermal runs at different heating rates, considering the decomposition of the three main components of the wood and also the combustion of the char obtained. Satisfactory kinetic models were obtained for each kind of wood. Significant differences in thermal behavior were found between furniture wood waste and solid wood, probably due to the presence of additives and inorganic compounds in the furniture wood waste, which modifies the kinetic parameters of the thermal process. Moreover, combustion runs at 850 °C of both kinds of woods were also carried out in a laboratory scale tubular reactor in order to analyze the volatile and semivolatile compounds. The main differences were found in the higher yield of nitrogenated compounds found during the combustion of the furniture wood waste.