Thermal behavior characteristics of Adhesive residue.

Solid wastes from organic Adhesive production are identified as toxicant hazardous wastes in China's National Catalogue of Hazardous Wastes. The aim of this study is analyzing the thermal behavior of Adhesive residue. Its pyrolysis and combustion characteristics were investigated using thermogravimetric analysis (TGA). Experiments were carried out in the temperature range of 50-950 degrees C in both nitrogen and air. The results indicate that combustion under these experimental conditions largely occurs between 210 and 410 degrees C, whereas pyrolysis proceeds between 260 and 430 degrees C. Almost all weight lost takes place before 430 degrees C during both pyrolysis and combustion of the residue. Fourier transform infrared spectroscopy (FTIR) was used to characterize the emission characteristics during pyrolysis. When the sample is heated in an inert atmosphere, the evolution of volatiles starts around 260 degrees C, and reaches a peak rate at 394 degrees C. Most organic products evolve in a narrow temperature range during pyrolysis. The evolving gaseous products were identified as Butyraldehyde, Ether, Acetonitrile and CO2, accompanied with some CO.