Effect of FeCl3 Catalyst on Chemical Properties of Hydrochar Produced by Hydrothermal Carbonization of Dragon Fruit Stem (Hylocereus undatus).

Autor: Tran, Lien Thi, Hoang, Ha Trong, Nguyen, Minh Quang, Dao, Nam Duy, Vu, Thu Ha Thi
Předmět:
Zdroj: BioEnergy Research; Dec2022, Vol. 15 Issue 4, p1996-2005, 10p
Abstrakt: The effect of FeCl3 catalyst on the hydrothermal carbonization of dragon fruit stem (DFS) was investigated in reaction temperature range of 160 to 220 °C, in reaction time varying from 1 to 7 h. The obtained results showed that all properties of hydrochar were remarkably enhanced, in which the carbon content of non-catalyzed and FeCl3-catalyzed hydrochar increased about 12.65 and 29.37 wt.% compared to the raw material DFS. The higher heating value (HHV) and the mass yield of produced hydrochars were between 15.72–25.88 MJ kg−1 and 46.1–58.7%. The conditions for producing hydrochar as solid fuel were found optimized at 220 °C and retention time of 5 h with FeCl3 catalyst. The obtained results suggested that the presence of FeCl3 catalyst might help reduce reaction time and energy input. Besides, based on the characteristic results by FTIR, SEM, and TG/DTG analyses, the reaction temperature is the parameter having the most significant influence on the structural morphology and thermal stability of the final hydrochars. The HTC process of DFS with FeCl3 catalyst opens up a potential application direction in enhancing the value of agricultural by-products into a carbon-rich solid fuel source. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index