Roman Kamil, Dasiewicz Julia, Marchwicka Monika
Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences-SGGW, 02-787 Warsaw, Poland.
Faculty of Wood Technology, Warsaw University of Life Sciences-SGGW, 02-787 Warsaw, Poland.
Materials (Basel). 2024 Dec 15;17(24):6137. doi: 10.3390/ma17246137.
The present study aimed to determine the effect of material modification by hot water extraction (HWE) on the compaction efficiency of shredded stalks in the pellet production process. Samples were prepared to differ in the number of HWE cycles: HWE I was subjected to a single cycle, HWE II was subjected to two cycles, and HWE III was subjected to three cycles and unmodified material. An analysis of the compaction process was carried out to evaluate the effect of HWE on density and energy consumption. In this study, HWE pre-treatment was applied to improve biomass compaction efficiency and material properties, improving biofuel production's sustainability and efficiency. A small change was found in glucose and xylose content, suggesting that HWE slightly affects these sugars. It was found that HWE significantly increased the density of compacted biomass, with a peak density of 388.7 kg·m after the first HWE cycle. Ash content was reduced by 50% after one HWE cycle, making the biomass more suitable for biofuel applications. Furthermore, pretreatment with HWE reduced energy consumption during compaction, enhancing process efficiency. This study highlights the role of hot water extraction (HWE) in improving miscanthus compaction, enhancing density, reducing ash, and lowering energy use.
本研究旨在确定热水萃取（HWE）对颗粒生产过程中切碎秸秆压实效率的材料改性效果。制备的样品在HWE循环次数上有所不同：HWE I进行单次循环，HWE II进行两次循环，HWE III进行三次循环以及未改性材料。对压实过程进行了分析，以评估HWE对密度和能量消耗的影响。在本研究中，应用HWE预处理来提高生物质压实效率和材料性能，改善生物燃料生产的可持续性和效率。发现葡萄糖和木糖含量有微小变化，表明HWE对这些糖类有轻微影响。发现HWE显著提高了压实生物质的密度，第一次HWE循环后峰值密度为388.7 kg·m。经过一次HWE循环后，灰分含量降低了50%，使生物质更适合用于生物燃料应用。此外，HWE预处理降低了压实过程中的能量消耗，提高了工艺效率。本研究突出了热水萃取（HWE）在改善芒草压实、提高密度、减少灰分和降低能源使用方面的作用。
