Fast Pyrolysis Characteristics of Sugarcane Bagasse Hemicellulose

The pyrolysis characteristics of sugarcane bagasse hemicellulose were investigated using a tubular furnace. The total gas yield and the releasing behavior of the main gas products were measured by GC analysis. The liquid products were analyzed by GC-MS and ion chromatography. The chars were investigated by elemental analysis and proximate analysis. The volatile remaining in the char extracted by isopropanol was observed by GC-MS analysis. The main gas products from hemicellulose mainly consisted of H2, CO2, CO, CH4. It was observed that the yield of CO2 and CO was higher at lower temperatures, such as 550 °C, as well as that of H2 and CH4 at higher temperatures. The liquid products mainly contained furfural, cyclopentene-1 (2-methyl-2-cyclopentene-1, 2-cyclopentene-1, 3-methyl-2-cyclopentene), alcohols (1-butanol), organic acids (acetic acid, 4-hydroxy-butanoic acid, propanoic acid), aromatic series (phenol, ethylbenzene), besides some amounts of sugars. The products remaining in the char were mainly alcohols, cyclopentenes and complex aromatic char.