Global Technology, SK innovation, 325 Exporo, Yuseong-gu, Daejeon 305-712, Republic of Korea.
Department of Chemical Engineering, Sungkyunkwan University, 300 Chunchun, Jangan, Suwon 440-746, Republic of Korea.
Bioresour Technol. 2014 Jun;162:96-102. doi: 10.1016/j.biortech.2014.03.136. Epub 2014 Apr 3.
The pyrolysis of Scenedesmus sp. and Jatropha seedshell cake (JSC) was investigated under similar operating condition in a fluidized bed reactor for comparison of pyrolytic behaviors from different species of lipids-containing biomass. Microalgae showed a narrower main peak in differential thermogravimetric curve compared to JSC due to different constituents. Pyrolysis liquid yields were similar; liquid's oil proportion of microalgae is higher than JSC. Microalgae bio-oil was characterized by similar carbon and hydrogen contents and higher H/C and O/C molar ratios compared to JSC due to compositional difference. The pyrolytic oils from microalgae and JSC contained more oxygen and nitrogen and less sulfur than petroleum and palm oils. The pyrolytic oils showed high yields of fatty oxygenates and nitrogenous compounds. The microalgae bio-oil features in high concentrations of aliphatic compounds, fatty acid alkyl ester, alcohols and nitriles. Microalgae showed potentials for alternative feedstock for green diesel, and commodity and valuable chemicals.
研究了在类似操作条件下，利用流化床反应器对栅藻和麻疯树籽壳饼（Jatropha seedshell cake，JSC）进行热解，以比较不同种类含脂生物质的热解行为。与 JSC 相比，微藻在差示热重曲线上的主峰较窄，这是由于其组成成分不同。热解液体产率相似，但微藻液体油的比例高于 JSC。由于组成差异，微藻生物油的碳氢含量相似，但 H/C 和 O/C 摩尔比更高。与石油和棕榈油相比，微藻和 JSC 的热解油含氧和含氮量更高，含硫量更低。热解油中含有更多的脂肪酸酯、含氮化合物和脂肪族化合物。微藻生物油的特点是含有高浓度的脂肪族化合物、脂肪酸烷基酯、醇和腈。微藻作为绿色柴油、商品和有价值化学品的替代原料具有潜力。
