Element and chemical compounds transfer in bio-crude from hydrothermal liquefaction of microalgae

被引：61
作者：
Tang, Xiaohan [1 ]
Zhang, Chao [1 ]
Li, Zeyu [1 ]
Yang, Xiaoyi [1 ]
机构：
[1] Beihang Univ, Sch Energy & Power Engn, Energy & Environm Int Ctr, Beijing 100191, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2016年 / 202卷
关键词：
Microalgae; HTL; Element transfer; Compounds transfer; BIOFUEL PRODUCTION; CHLORELLA-PYRENOIDOSA; WATER TECHNOLOGIES; NANNOCHLOROPSIS SP; LIPID-CONTENT; OIL; CONVERSION; SPIRULINA; BIOCRUDE; QUALITY;
D O I：
10.1016/j.biortech.2015.11.076
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
In this study, hydrothermal liquefaction (HTL) experiments of Nannochloropsis and Spirulina were carried out at different temperatures (220-300 degrees C) to explore the effects of temperature on bio-crude yield and properties. The optimal temperature for bio-crude yield was around 260-280 degrees C. Transfers of element and chemical compounds in bio-crude were discussed in detail to deduce the reaction mechanism. The hydrogen and carbon recoveries were consistent with the results of bio-crude yields at every temperature point. The relative percentage of fatty acid in bio-crude decreased and the amine and amide increased for both microalgae with temperature rising. The N-heterocyclic compounds in bio-crude increased with temperature rising for Nannochloropsis, while decreased when temperature increased from 220 degrees C to 280 degrees C for Spirulina. Bio-crude gained at higher temperature or from microalgae with high protein content may contain high heteroatom compounds. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：8 / 14
页数：7
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