Abstract Bio-oil from microalgae has attracted attention for its extraordinary raw material utilization advantages and environmentally friendly characteristics. In order to increase the renewable energy utilization efficiency of microalgae biomass, research on the production line of microalgae cultivation and pyrolysis is essential. In this study, three high lipid content microalgae strains, including Micractinium reisseri, Scenedesmus obliquus SAG276-10 and Scenedesmus obliquus FACHB-276, have been selected to examine their capacity for crude bio-oil production under different pyrolysis conditions. The calculation of economic feasibility showed that M. reisseri comprised the most efficient energy conversion among considered strains. Gas Chromatography-Mass Spectrometry (GC–MS) analysis revealed a significant difference in the composition of crude bio-oil produced by non-catalytic and catalytic pyrolysis. The application of HZSM-5 increased the hydrocarbon content of the M. reisseri and S. obliquus FACHB-276 and decreased the ether and ester content of S. obliquus SAG276-10 upon pyrolysis when compared with non-catalytic pyrolysis. Although the use of MCM-41 was detrimental to the formation of hydrocarbons and increased the content of nitrogen-containing compounds, the mixture of HZSM-5 and MCM-41 greatly elevated the hydrocarbon content of S. obliquus SAG276-10 and S. obliquus FACHB-276.

中文翻译：

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三种微藻催化裂化生产生物油的实验研究及经济可行性分析

摘要 微藻生物油以其非凡的原料利用优势和环境友好特性而备受关注。为了提高微藻生物质的可再生能源利用效率，对微藻培养和热解生产线的研究必不可少。在这项研究中，选择了三种高脂质含量的微藻菌株，包括 Micractinium reisseri、Scenedesmusobliquus SAG276-10 和 Scenedesmusobliquus FACHB-276，以检查它们在不同热解条件下生产粗生物油的能力。经济可行性的计算表明，M. reisseri 在考虑的菌株中包含最有效的能量转换。气相色谱-质谱 (GC-MS) 分析显示，通过非催化和催化热解生产的粗生物油的组成存在显着差异。与非催化热解相比，HZSM-5的应用增加了M. reisseri和S.obliquus FACHB-276的烃含量，降低了S.obliquus SAG276-10的醚和酯含量。虽然MCM-41的使用不利于烃类的形成并增加了含氮化合物的含量，但HZSM-5和MCM-41的混合物大大提高了S.obliquus SAG276-10和S.obliquus的烃含量FACHB-276。与非催化热解相比，obliquus FACHB-276 在热解时降低了 S.obliquus SAG276-10 的醚和酯含量。虽然MCM-41的使用不利于烃类的形成并增加了含氮化合物的含量，但HZSM-5和MCM-41的混合物大大提高了S.obliquus SAG276-10和S.obliquus的烃含量FACHB-276。与非催化热解相比，obliquus FACHB-276 在热解时降低了 S.obliquus SAG276-10 的醚和酯含量。虽然MCM-41的使用不利于烃类的形成并增加了含氮化合物的含量，但HZSM-5和MCM-41的混合物大大提高了S.obliquus SAG276-10和S.obliquus的烃含量FACHB-276。