- Authors: Mulhidin
- From: Graduate School of Environmental Science, Technology for Sustainable Development, Universitas Gadjah Mada
Abstract:
Mahogany sawdust is one of the most promising biomass waste due to its abundant and untapped existence. Utilization of mahogany waste is currently limited to solid fuels and a small portion for the mixture in particle board manufacturing. In this research, conversion waste of mahogany sawdust (Swietenia macrophylla) using hydrothermal liquefaction (HTL) method will be done to produce solid and liquid product. The liquid product will be characterized to find derivative compounds which may act as natural textile dyes. On the other hand, solid products are characterized to determine their properties as solid fuels. Experiments were conducted in temperature of 200oC, 240oC, 270oC, and 300oC at an initial pressure 1 MPa for 30 minutes. In addition, there was also a variation of biomass-water ratio (B/W ratio) with a ratio1:20, 2:20 and 3:20 (at temperature of 250 oC). The characterization of solid product was carried out by proximate analysis while the liquid product was characterized using HPLC and GC-MS. The last one is color testing by coloring the fabric, color quality test and color naming using Munsell color chart.
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