<i>Acacia Holosericea</i>: An Invasive Species for Bio-char, Bio-oil, and Biogas Production
Md Sumon Reza | Ashfaq Ahmed | Wahyu Caesarendra | Muhammad S. Abu Bakar | Shahriar Shams | R. Saidur | Navid Aslfattahi | Abul K. Azad
To evaluate the possibilities for biofuel and bioenergy production <i>Acacia Holosericea</i>, which is an invasive plant available in Brunei Darussalam, was investigated. Proximate analysis of <i>Acacia Holosericea</i> shows that the moisture content, volatile matters, fixed carbon, and ash contents were 9.56%, 65.12%, 21.21%, and 3.91%, respectively. Ultimate analysis shows carbon, hydrogen, and nitrogen as 44.03%, 5.67%, and 0.25%, respectively. The thermogravimetric analysis (TGA) results have shown that maximum weight loss occurred for this biomass at 357 °C for pyrolysis and 287 °C for combustion conditions. Low moisture content (<10%), high hydrogen content, and higher heating value (about 18.13 MJ/kg) makes this species a potential biomass. The production of bio-char, bio-oil, and biogas from <i>Acacia Holosericea</i> was found 34.45%, 32.56%, 33.09% for 500 °C with a heating rate 5 °C/min and 25.81%, 37.61%, 36.58% with a heating rate 10 °C/min, respectively, in this research. From Fourier transform infrared (FTIR) spectroscopy it was shown that a strong C–H, C–O, and C=C bond exists in the bio-char of the sample.
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