Oil palm industry discharges a large amount of biomass waste which can be converted into energy and chemicals. Hence, several biomass conversion methods are available, such as fermentation, pyrolysis, and gasification. In this work, the hot-compressed water method was proposed to produce valuable chemicals from oil palm biomass (oil palm fiber, shell, and empty fruit bunches). Each material was individually treated in a batch autoclave reactor at 200–300 °C for 30 min. After separation, the total organic carbon of the liquid product was measured by a Shimadzu TOC-5000A instrument, while its composition was analyzed by HPLC and GC/MC apparatus. Experimental results showed that liquid product of oil palm wastes contains various chemicals such as glucose, xylose, 5-HMF, furfural, acetic acid, formic acid, phenol, catechol, and phenol 2,6-di-methoxy. This liquid product composition was strongly dependent on the temperature treatment. In general, sugar-derived compounds (glucose, xylose, 5-HMF, furfural, acetic acid, formic acid) were primarily found in lower temperature; meanwhile, lignin-derived compounds (phenol, catechol, and phenol 2,6-di-methoxy) were mainly obtained in higher temperature.

油棕工业排放大量可转化为能源和化学物质的生物质废物。因此，有几种生物质转化方法可用，例如发酵，热解和气化。在这项工作中，提出了热压水法，以从油棕生物质（油棕纤维，壳和空果串）中生产有价值的化学物质。每种材料分别在200-300°C的间歇式高压釜中处理30分钟。分离后，通过Shimadzu TOC-5000A仪器测量液体产物的总有机碳，同时通过HPLC和GC / MC设备分析其组成。实验结果表明，油棕废料的液体产品包含各种化学物质，例如葡萄糖，木糖，5-HMF，糠醛，乙酸，甲酸，苯酚，儿茶酚和苯酚2,6-二甲氧基。该液体产物的组成强烈依赖于温度处理。通常，主要在较低温度下发现糖衍生的化合物（葡萄糖，木糖，5-HMF，糠醛，乙酸，甲酸）。同时，木质素衍生的化合物（苯酚，儿茶酚和苯酚2,6-二甲氧基）主要在较高温度下获得。