Abstract: “Pyrolysis of dried pulverized BL was carried out using a microwave. Microwave method offers several advantages such as volumetric heating, rapid turnover as well as efficient energy conversion. The objectives this works were to study microwave heating pyrolysis technique and resulting products as well as conversion efficiency. Weak BL used in this experiment was taken from soda and kraft pulping process from local pulp mill which was then dried and sieved. Pyrolysis was performed in quartz reactor heated in microwave using silicon carbide as microwave receptor. It was found that the reaction temperature may reach 545-1120°C within 10 min by employing microwave heating depending on the amount of dried BL used. The obtained gas products were quantified by gas analyzer. Char and tar were collectively analyzed by weight measuring. Results indicated that optimum operating conditions were pyrolysis of BL achieved at microwave power of 625 W (1120ºC), BL 10 g., silicon carbide ratio 1:1 and r”

Keywords: volumetric heating, rapid turnover , efficient