Centre for Thermal Energy and Materials, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK.
Cranfield Soil and Agrifood Institute, Cranfield University, Cranfield MK43 0AL, UK.
Molecules. 2020 Oct 29;25(21):5028. doi: 10.3390/molecules25215028.
This study explores the use of a novel activating agent and demonstrates the production and characterisation of activated carbon (AC) from a combine palm waste (CPW) in 3:2:1 proportion by weight of empty fruit bunch, mesocarp fibre and palm kernel shell. The resulting biomass was processed by a microwave-assisted method using trona and compared with material produced by conventional routes. These results demonstrate the potential of trona ore as an activating agent and the effectiveness of using a combined palm waste for a single stream activation process. It also assesses the effectiveness of trona ore in the elimination of alcohol, acids and aldehydes; with a focus on increasing the hydrophilicity of the resultant AC. The optimum results for the conventional production technique at 800 °C yielded a material with S 920 m/g, V 0.840 cm/g, a mean pore diameter of 2.2 nm and an AC yield 40%. The optimum outcome of the microwave assisted technique for CPW was achieved at 600 W, S is 980 m/g; V 0.865 cm/g; a mean pore diameter 2.2 nm and an AC yield of 42%. Fourier transform infrared spectrometry analyses showed that palm waste can be combined to produce AC and that trona ore has the capacity to significantly enhance biomass activation.
本研究探索了一种新型活化剂的应用,并展示了在 3:2:1 的重量比下,由空果串、中果皮纤维和棕榈仁壳组成的组合棕榈废料(CPW)制备和表征活性炭(AC)的过程。所得生物质通过微波辅助法用天然碱处理,并与常规方法生产的材料进行比较。这些结果表明天然碱矿作为活化剂的潜力以及使用组合棕榈废料进行单一流活化过程的有效性。它还评估了天然碱矿在消除醇、酸和醛方面的有效性,重点是提高所得 AC 的亲水性。在 800°C 下,常规生产技术的最佳结果得到了一种 S 为 920 m/g、V 为 0.840 cm/g、平均孔径为 2.2nm 和 AC 收率为 40%的材料。微波辅助 CPW 技术的最佳结果是在 600 W 时获得的,S 为 980 m/g、V 为 0.865 cm/g、平均孔径为 2.2nm 和 AC 收率为 42%。傅里叶变换红外光谱分析表明,棕榈废料可以组合起来生产 AC,并且天然碱矿有能力显著增强生物质的活化。