研究微藻与甘薯渣共液化过程中的Mannich 反应。
Investigation of Mannich reaction during co-liquefaction of microalgae and sweet potato waste.
机构信息
Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, School of Electric Power, South China University of Technology, Guangzhou 510640, China.
Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, School of Electric Power, South China University of Technology, Guangzhou 510640, China; Institute of Energy Innovation and Development, Shenzhen Energy Group Co., Ltd., Shenzhen 518031, China.
出版信息
Bioresour Technol. 2019 Jul;284:286-292. doi: 10.1016/j.biortech.2019.03.136. Epub 2019 Mar 28.
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 qualities 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.
生物油的脱氮仍然是生物油质量升级的一个重要挑战。本研究采用共液化的方法将微藻（MA）和甘薯废弃物（SPW）进行共液化，以考察曼尼希反应的脱氮作用。探讨了 MA 和 SPW 之间的相互作用反应对产物质量的影响。结果表明，共液化生物油（4.44-7.19%）的氮含量低于微藻（7.60%）。此外，MA&SPW 的酯含量（60.31-73.17%）高于 MA（56.11%）和 SPW（17.55%）。SPW 的添加降低了润滑油和燃料油的含量。共液化过程中的实验能量回收效率（66.82-70.16%）高于计算的能量回收效率（65.68-66.69%）。基于产物的化学组成，提出了曼尼希反应在共液化过程中的可能反应途径。本研究表明，微藻和甘薯废弃物的共液化是提高生物油质量和能量回收效率的一种可行方法。
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