Investigation of Mannich reaction during co-liquefaction of microalgae and sweet potato waste
Investigation of Mannich reaction during co-liquefaction of microalgae and sweet potato waste
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DOI：
10.1016/j.biortech.2019.03.136
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发表时间：
2019-07-01
影响因子：
11.4
通讯作者：
Wang, Jingjing
中科院分区：
文献类型：
--
作者：
Chen, Xinfei;Peng, Xiaowei;Wang, Jingjing
生物油的反硝化是生物油质量提升的重要课题。以微藻（MA）和甘薯废弃物（SPW）为原料，研究了Mannich反应的反硝化作用。探讨了MA与SPW相互作用反应对产品质量的影响。结果表明，共液化生物油的N含量（4.44 ~ 7.19%）低于微藻油（7.60%）。此外，MA和SPW的酯含量（60.31 ~ 73.17%）高于MA（56.11%）和SPW（17.55%）。SPW的加入降低了润滑油和燃料油的含量。共液化过程的实验能量回收效率（66.82 ~ 70.16%）高于计算能量回收效率（65.68 ~ 66.69%）。根据产物的化学组成，提出了共液化过程中曼尼希反应可能的反应途径。本研究表明，微藻与甘薯废弃物共液化是提高生物油品质和能量回收效率的可行途径。
The denitrification of bio-oil remains an important challenge in bio-oil quality upgrading. Microalgae (MA) and sweet potato waste (SPW) were co-liquefied to investigate the denitrification of Mannich reaction. The influence of interaction reaction between MA and SPW on products qualifies was explored. The results showed that the N contents of bio-oils from co-liquefaction (4.44-7.19%) were lower than that from microalgae (7.60%). Besides, the ester contents from MA&SPW (60.31-73.17%) were higher than that from MA (56.11%) and SPW (17.55%).The addition of SPW decreased the lubricating oil and fuel oil content. The experimental energy recovery efficiency (66.82-70.16%) was higher than the calculated energy recovery efficiency (65.68-66.69%) during co-liquefaction processes. Based on chemical compositions of products, a possible reaction pathway of Mannich reaction during co-liquefaction process was proposed. The current study suggested that co-liquefaction of microalgae and sweet potato waste was a feasibility way to improve the bio-oil quality and energy recovery efficiency.