Analysis Of Eucalyptus (Melaleuca Cajuputi) Characteristics Of Post Coal Mining Land For Bioenergy

Eucalyptus (Melaleuca cajuputi) is planted in a post-coal reclamation field, including a type of pioneer due to its rapid growth, ability to live in dry soil, lack of specific growing requirements, and capacity to improve the physical characteristics, chemistry, and biology of the soil. It belongs to a group of plants that provide numerous benefits through the wood or extraction of essential oil from the leaves. This study aimed to analyze the physical properties of the kayu putih as the raw material of bioenergy. The gravimetric analysis method was used based on the SNI standard, and the result of the charcoal briquette and wood pellets was 0.99%. Furthermore, the water content of 33.67% met the charcoal briquins standard. The fixed carbon value was bound to 16.66%, and the calorific value of 4,535 cal/g met the wood SNI standard. The value of the volatile matter was 83.35%, and the analysis results of specific gravity was 0.73 g/cm3, lignin content 31.77%, cellulose 49.68%, and the extractive substance in NaOH, benzene, hot water, and cold water solutions at 16.45%, 4.01%, 8.73%, and 4.68%, respectively.