The effect of Kankara zeolite-Y-based catalyst on some physical properties of liquid fuel obtained from the pyrolysis of mixed waste plastics has been investigated. Combination of zeolite-Y, metakaolin, aluminum hydroxide and sodium silicate all synthesized from Kankara kaolin from Kankara in Katsina State, Nigeria, was used as catalysts. In this study, fifteen experiments were conducted: fourteen set of 200 g of the mixed waste plastics comprising 27 wt% HDPE, 33 wt% LDPE, 13 wt% PP, 18 wt% PS, 9 wt% PET were de-polymerized with catalyst and a set without catalyst (thermal pyrolysis) in a batch reactor. The maximum temperatures for catalyzed and thermal pyrolysis in this study are 350 °C and 490 °C, respectively. The catalyst components were characterized by XRF analysis, while their textural properties were determined from BET technique by N 2 adsorption at − 196 °C. A constant catalyst-to-plastic ratio of 1:10 was used for all the catalyzed reactions. The catalyzed liquid sample with the optimum yield of 46.7 wt% was obtained using 10.49 wt%, 32.42 wt%, 27.09 wt% and 30 wt%, of zeolite-Y, metakaolin, aluminumhydroxide and sodium silicate, respectively, while the thermal pyrolysis gave a liquid yield of 66.9 wt%. Furthermore, the liquid products obtained for both thermal and catalytic cracking at optimum yield were characterized for their suitability as fuel. The properties determined were density, viscosity, fire point, and calorific value. The results suggest that catalytic pyrolysis produced liquid products whose properties are comparable to conventional fuels (gasoline and diesel oil) and more suitable for use as liquid fuel than that produced through thermal pyrolysis.

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Kankara沸石-Y基催化剂对混合废塑料（MWPs）热解液体燃料物理性质的影响

研究了 Kankara 沸石-Y 基催化剂对混合废塑料热解得到的液体燃料的一些物理性质的影响。使用来自尼日利亚卡齐纳州坎卡拉的坎卡拉高岭土合成的 Y 型沸石、偏高岭土、氢氧化铝和硅酸钠的组合作为催化剂。在本研究中，进行了 15 次实验：14 组 200 g 混合废塑料，包括 27 wt% HDPE、33 wt% LDPE、13 wt% PP、18 wt% PS、9 wt% PET 用催化剂进行解聚和一组在间歇反应器中没有催化剂（热裂解）的装置。本研究中催化和热解的最高温度分别为 350 °C 和 490 °C。催化剂组分通过 XRF 分析表征，而它们的质地特性是通过 BET 技术在 - 196 °C 下通过 N 2 吸附确定的。所有催化反应均使用 1:10 的恒定催化剂与塑料比。分别使用 10.49 wt%、32.42 wt%、27.09 wt% 和 30 wt% 的沸石-Y、偏高岭土、氢氧化铝和硅酸钠获得了最佳产率为 46.7 wt% 的催化液体样品，而热解得到了液体收率为 66.9 wt%。此外，以最佳产率进行热裂化和催化裂化所获得的液体产物的特点是它们适合作为燃料。测定的特性是密度、粘度、燃点和热值。