Pyrolysis has been investigated as a technology to overcome environmental issues of waste tire disposal across the world. This study evaluates the economic viability of separating the tire-derived oil (TDO) that is produced by waste tire pyrolysis to obtain a high value chemical (limonene) together with a diesel-like fuel. A process was developed in Aspen Plus® for waste tire pyrolysis followed by limonene extraction from TDO, based on experimental data implementing optimum operating condition for maximum limonene production. Extractive distillation was applied for limonene recovery from TDO, while the TDO streams after limonene extraction demonstrated comparable properties to those of diesel fuel. However, the obtained fuel fraction from TDOs showed significantly smaller cetane number and higher sulfur content compared to diesel, which suggests it may be considered for blending with diesel fuel. The minimum selling price (MSP) of limonene was obtained 1505 $/tonne ($/t) in the best case scenario, compared to market price of about 12,000 $/t, which makes this plant an interesting investment. The worst case scenario, where the fuel product is considered as furnace fuel with a lower market price, also showed economic viability with a limonene-MSP of 4291 $/t. Co-production of limonene extraction significantly improved the economic performance of waste tire pyrolysis, while having a fuel product with a market price closer to diesel also had a substantial economic benefit.

热解已被研究作为一种技术来克服世界各地的废轮胎处理环境问题。本研究评估了分离由废轮胎热解产生的轮胎衍生油 (TDO) 以获得高价值化学品（柠檬烯）和类似柴油的燃料的经济可行性。在 Aspen Plus® 中开发了一种工艺，用于废轮胎热解，然后从 TDO 中提取柠檬烯，基于实施最佳操作条件以实现最大柠檬烯产量的实验数据。萃取蒸馏用于从 TDO 中回收柠檬烯，而柠檬烯萃取后的 TDO 流显示出与柴油燃料相当的特性。然而，与柴油相比，从 TDO 获得的燃料馏分显示出明显更小的十六烷值和更高的硫含量，这表明它可以考虑与柴油混合。在最佳情况下，柠檬烯的最低售价 (MSP) 为 1505 美元/吨 ($/t)，而市场价格约为 12,000 美元/吨，这使得该工厂成为一项有趣的投资。在最坏的情况下，燃料产品被视为具有较低市场价格的熔炉燃料，也显示出经济可行性，柠檬烯-MSP 为 4291 美元/吨。联产柠檬烯提取显着提高了废轮胎热解的经济性能，同时具有市场价格更接近柴油的燃料产品也具有可观的经济效益。这使该工厂成为一项有趣的投资。在最坏的情况下，燃料产品被视为具有较低市场价格的熔炉燃料，也显示出经济可行性，柠檬烯-MSP 为 4291 美元/吨。联产柠檬烯提取显着提高了废轮胎热解的经济性能，同时具有市场价格更接近柴油的燃料产品也具有可观的经济效益。这使该工厂成为一项有趣的投资。在最坏的情况下，燃料产品被视为具有较低市场价格的熔炉燃料，也显示出经济可行性，柠檬烯-MSP 为 4291 美元/吨。联产柠檬烯提取显着提高了废轮胎热解的经济性能，同时具有市场价格更接近柴油的燃料产品也具有可观的经济效益。