水热液化
热液循环
化学
热解
糖
碳纤维
溶剂
水热碳化
纤维素
核化学
有机化学
化学工程
吸附
碳化
材料科学
催化作用
复合材料
工程类
复合数
作者
Linghao Li,Fan Zhang,Ting Ren,Haipeng Yu,Hong Wang,Youhong Sun,Enchen Jiang,Xinhua Xu
标识
DOI:10.1016/j.biortech.2021.126143
摘要
Microalgae are considered as a promising alternative to fossil fuels due to their ease of cultivation, short growth cycle and no occupation of cultivated land. In this study, N,N-Dimethylformamide (DMF) solvent was employed to assist hydrothermal pretreatment of Chlorella for coproduction of sugar, nitrogenous compounds and carbon dots (CDs). The effect of pretreatment conditions on the composition and pyrolysis bio-oil distribution of hydrothermal solid residues as well as CDs characteristic were investigated by varying the temperature (180-220 ℃) and reaction time (1-9 h). The results showed that pretreated residues had higher cellulose. And the yield of sugar and N-contained compounds reached 41.59% and 63.57% in the pyrolysis bio-oil of pretreated algae residues, respectively. Moreover, CDs obtained from hydrothermal solution fluoresced red under 365 nm excitation. The paper provides a new method for the complete utilization of microalgae.
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