The global presence of plastic debris has become an indisputable environmental issue. While it is useful to recycle used plastic materials, contaminated plastics require a series of pretreatments prior to the process. Here, we offer a viable thermochemical conversion (pyrolysis) platform to directly valorize fishing net waste (FNW). Prior to the pyrolysis of FNW that was collected at a Korean seaport, its chemical composition (polyethylene) was examined using thermogravimetric analysis, ultimate analysis, and Fourier-transform infrared spectroscopy measurements. Pyrolysis of FNW was conducted to produce value-added syngas and C_1-2 hydrocarbons (HCs) in both CO₂ and N₂ environments with a variety of pyrolysis setups. The pyrolysis temperature significantly contributed to the thermal cracking of long-chain liquid HCs into H₂ and C_1-2 HCs under the N₂ and CO₂ conditions. In the presence of cobalt-based catalysts, an additional improvement of the reaction kinetics for producing H₂ and C_1-2 HCs was shown in the N₂ environment. However, the synergistic effectiveness of Co-based catalysts and CO₂ resulted in CO formation, because CO₂ provided additional C and O sources over the Co-based catalysts. Thus, it allowed control of the H₂/CO ratio in the CO₂ and N₂ atmospheres. The compositional matrix of the liquid HCs after pyrolysis also confirmed that CO₂ controlled their aromaticity. Thus, the CO₂-cofeeding pyrolysis of FNW can be considered a viable platform for the direct treatment of plastic wastes by harvesting energy as a form of syngas.

塑料碎片的全球存在已成为无可争议的环境问题。虽然回收用过的塑料材料很有用，但受污染的塑料在处理之前需要进行一系列预处理。在这里，我们提供了可行的热化学转化（热解）平台，可直接对渔网废物（FNW）进行增值。在韩国港口收集的FNW进行热解之前，先使用热重分析，极限分析和傅里叶变换红外光谱法对其化学成分（聚乙烯）进行了检查。进行FNW的热解以在CO ₂和N _2中产生增值合成气和C _1-2烃（HCs）具有多种热解设置的环境。 在N ₂和CO ₂条件下，热解温度显着促进了长链液态HCs热裂解为H ₂和C _1-2 HCs 。在钴基催化剂的存在下， 在N ₂环境中显示出用于生产H ₂和C _1-2 HCs的反应动力学的其他改进。然而，Co基催化剂和CO ₂的协同效力导致形成CO，这是因为CO ₂提供了比Co基催化剂更多的C和O源。因此，可以控制CO中的H ₂ / CO比。₂和N ₂气氛。热解后液态HC的组成矩阵也证实CO ₂控制了它们的芳香性。因此，FNW的CO _2-共进料热解可以被认为是通过收集能量作为合成气形式直接处理塑料废物的可行平台。