2. Methodology
The OPS waste biomass was acquired from Felda Kulai Palm Oil Mill located in Johor Bahru, Malaysia. The as-received OPS nuts were grinded to 0.00118–0.0003 m. The inherent moisture content of as-received OPS was 8.2 wt%. The volatile matter, fixed carbon and ash content of as-received OPS was 69.5 wt%, 20.3 wt% and 2.3 wt% respectively, whereas carbon, hydrogen, nitrogen and oxygen content was 55.4 wt%, 6.3 wt%, 0.4 wt% and 38 wt%, respectively. The microwave heating material of commercial grade CAC 0.002 m particle size was obtained from Kekwa Indah Snd Bhd, Malaysia.