Abstract This study investigates the yield and quality of bio-oil produced from catalytic and non-catalytic pyrolysis of microalgae Chlorella vulgaris using Ni supported zeolite (Si/Al = 30) prepared by two different methods, ion exchange (IE) and wet impregnation (WI) to examine the effect of catalyst preparation methods on the bio-oil quality. The experiments were also conducted to investigate the effect of different temperatures (300–600 °C) and catalyst to algae ratio (1:5, 1:2, 1:1 and 2:1) on the yield and quality of bio-oil. The results showed that catalytic pyrolysis using Ni supported zeolites produced high hydrocarbon, less oxygenated and acid compounds compared to non-catalytic pyrolysis. The catalyst preparation method did not affect the yield but had an effect on the bio-oil composition. The results obtained from this study are useful in developing the catalytic pyrolysis process to refine bio-oils for commercial use.

中文翻译：

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微藻小球藻催化热解生物油的质量

摘要 本研究研究了使用离子交换 (IE) 和湿浸渍两种不同方法制备的 Ni 负载沸石 (Si/Al = 30) 对微藻小球藻进行催化和非催化热解生产的生物油的产量和质量。 WI) 来检查催化剂制备方法对生物油质量的影响。还进行了实验以研究不同温度（300-600 °C）和催化剂与藻类的比例（1:5、1:2、1:1 和 2:1）对生物油产量和质量的影响. 结果表明，与非催化热解相比，使用 Ni 负载沸石的催化热解产生了高烃、较少含氧化合物和酸性化合物。催化剂制备方法不影响收率，但对生物油组成有影响。