*2.2. Pre-Pyrolysis Test via Thermogravimetric Analysis (TGA)*

In order to obtain the proper pyrolysis temperature range of the dried RH, a thermal analyzer (TGA-51; Shimadzu Co., Japan) was used to obtain the TGA data. Around 0.2 g of the RH sample was placed on a quartz crucible and then heated externally to a maximum temperature of 1000 ◦C at a fixed rate of 10 ◦C/min under a nitrogen (N2) flow rate of 50 cm3/min. During the TGA operation, ongoing data on the sample weight and temperature were collected to determine the thermal stability and reaction mechanism by the curves of TGA and its derivative thermogravimetry (DTG). The TGA curve was normalized based on the weight of RH sample fed.
