Plastic waste is on the rise and continues to enter in every consumer product. Their recycling, however poses challenges due to their compositions and inhomogeneity. Gasification is an energy conversion route of hydrocarbon and is a well-developed technology for coal, but not for municipal-solid-waste (MSW) derivatives (plastic/tires/wood). Polyethylene (PE), polypropylene (PP), polystyrene (PS) holds about 12% of our daily MSW fraction and are characterized with high calorific value (~40 MJ/kg). In this work, TGA/DSC analysis was firstly done for sample plastic waste to capture their degradation kinetics needed for successful gasification. These parameters were evaluated using Arrhenius and Coat-Redfern methods. The best-fitted-values were implemented in a high-fidelity entrained-flow-gasification model for comparative analysis. Gasification was conducted based on the drop-tube-reactor (0.066 m diameter & 1.54 m length) with an equivalence ratio of 1.8. Wall temperature was fixed at 1000 °C under atmospheric pressure. Activation energy results for PE, PP, PS and their mixture are 340, 220, 320 and 85 kJ/mol, respectively and rate constants vary between E¹⁰ to E²² min⁻¹. Air gasification results in efficiencies of 59.03%, 62.73%, and 73.13% for PE, PP, and PS, respectively. Their co-gasification reached 89% due to lower activation-energy which emphasized their usage as mixture and saves their segregation.

塑料废料呈上升趋势，并继续进入每种消费品。然而，由于它们的成分和不均匀性，它们的再循环提出了挑战。气化是碳氢化合物的能量转化途径，并且是用于煤炭的成熟技术，但不适用于市政固体废物（MSW）衍生物（塑料/轮胎/木材）。聚乙烯（PE），聚丙烯（PP），聚苯乙烯（PS）占我们日常城市生活垃圾的约12％，并且具有很高的发热量（〜40 MJ / kg）。在这项工作中，首先对样品塑料废物进行了TGA / DSC分析，以捕获成功气化所需的降解动力学。这些参数使用Arrhenius和Coat-Redfern方法进行评估。最适合的值在高保真气流床气化模型中实现，以进行比较分析。基于滴管式反应器（直径0.066 m，长度1.54 m）进行气化，当量比为1.8。壁温在大气压下固定为1000°C。PE，PP，PS及其混合物的活化能结果分别为340、220、320和85 kJ / mol，速率常数在E之间变化¹⁰至E ²² min ^-1。空气气化对PE，PP和PS的效率分别为59.03％，62.73％和73.13％。由于较低的活化能，它们的共气化达到89％，这强调了它们作为混合物使用并节省了分离。