Nutrition Characterization of Aqueous Phase Produced by the Hydrothermal Treatment of Microalgae
Nutrition Characterization of Aqueous Phase Produced by the Hydrothermal Treatment of Microalgae
复制标题
微藻水热处理产生的水相的营养特性
DOI：
10.3775/jie.95.289
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发表时间：
2016
影响因子：
0.2
通讯作者：
K. Yoshikawa
中科院分区：
文献类型：
--
作者：
Pengjie Lin;Tantiphiphatthana Manatchanok;K. Yoshikawa
为了缓解能源危机和从化石燃料开采到燃烧对环境的破坏，利用藻类生产液体生物燃料以减少二氧化碳排放和对石油的依赖受到了越来越多的关注。在现有的藻类生物燃料技术中，水热处理是一种很有吸引力的技术，因为所生产的生物油的含氧量比热解低，而且不需要原料的脱水步骤。然而，从藻类中提取石油会产生大量的生物质残留物，这些残留物应该作为废物排放。特别是含水馏分占产品的主要部分。本研究以从泰国科学技术研究所获得的编号为8511的绿色微藻为材料，在不同的水热条件下进行处理，以考察其水相产物的营养成分。水热处理在不同藻类浓度(从5%到30%)和不同温度范围(从210°C到290°C)下进行。对水相中的主要营养元素和痕量金属元素进行了定量分析。结果表明，在水中有相当大的营养恢复是可能的。
To mitigate the energy crisis and the environmental damage from fossil fuels exploration to combustion, much attention has been focused on liquid biofuel production from algae to reduce CO 2 emission and dependence on petroleum. Among the existing algae-to-biofuels technologies, the hydrothermal treatment has been proposed as an attractive one since the produced bio-oil has lower oxygen content than pyrolysis, and the dewatering step of the feedstock is not necessary. However, much biomass residue will be produced associated with the oil extraction from algae, which should be discharged as wastes. Especially the aqueous fraction accounts for the major part of the products. In this study, a green microalgae obtained from TISTR (Thai Institute of Science and Technology Research), named No.8511, was processed under different hydrothermal conditions to investigate the properties of aqueous phase products in terms of the nutrient content. Hydrothermal treatment was conducted at different concentrations of algae (from 5 % to 30 %) and temperature ranges (from 210 ° C to 290 ° C). The major nutrition elements and trace metal elements in the aqueous phase were quantified and analyzed. The results showed that a considerable nutrition recovery in aqueous part is possible.