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Abstract：
Fossil sourced chemicals such as aromatics, are widely employed in the chemical industry for the production of commodity items. Recognizing the un-sustainability of existing approaches in the production of these chemicals, the current study investigated the valorization of apple pomace (AP) for their production. The present study assessed AP valorization by imposing variations in processing conditions of temperature (100-260 °C), time (0.5-12 h), alcohol/water ratio v/v (0:1-1:0), and Fe3+/H2O2 molar ratio (10:1-100-1), in accordance to the Box-Behnken experimental design. The optimal yield of the oil was 24.6 wt.%, at the temperature, time, alcohol/water ratio v/v, and Fe3+/H2O2 molar ratio of 260 °C, 4.7 h, 1, and 100, respectively. Notably, the application of gas chromatography-mass spectroscopy showed that the oil product contained mainly aromatics and interestingly also alkanes, indicating that the experimental conditions imposed promoted secondary hydrogenation reactions of oxygen-containing species during AP valorization. A consideration of the comparative economics of the proposed AP valorization and the existing AP management approach, using approximate estimation techniques, highlighted the potential of a ~ 59% reduction in the unit cost of AP management. The study therefore presents a compelling basis for future investigations into AP waste management using the thermochemical liquefaction technology.
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摘要：
化石来源的化学品，如芳烃，在化学工业中广泛用于生产商品。认识到生产这些化学品的现有方法不可持续性，当前的研究调查了苹果渣（AP）的生产价值。本研究通过施加温度（100-260°C）的加工条件变化来评估AP的价值，时间（0.5-12小时），酒精/水比v/v（0：1-1：0），和Fe3+/H2O2摩尔比(10:1-100-1)，按照Box-Behnken实验设计。油的最佳产率为24.6wt。%,在温度下，时间,酒精/水比v/v，Fe3+/H2O2摩尔比为260℃，4.7h,分别为1和100。值得注意的是,气相色谱-质谱法的应用表明，油品主要含有芳烃，有趣的是还含有烷烃，表明所施加的实验条件促进了AP增值过程中含氧物种的二次氢化反应。考虑到拟议的AP估值和现有的AP管理方法的比较经济学，使用近似估计技术，强调了AP管理单位成本降低约59%的潜力。因此，该研究为将来使用热化学液化技术对AP废物管理进行研究提供了令人信服的基础。
