木屑等离子体电解液化的机理与优化。
Mechanism and optimization for plasma electrolytic liquefaction of sawdust.
机构信息
Department of Physics, College of Physical Science and Technology, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Institute of Electromagnetics and Acoustics, Xiamen University, Xiamen 361005, China.
Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
出版信息
Bioresour Technol. 2017 Oct;241:545-551. doi: 10.1016/j.biortech.2017.05.132. Epub 2017 May 24.
In this work, plasma electrolytic technology was successfully employed to achieve fast liquefaction of sawdust when polyethylene glycol 200 (PEG 200) and glycerol were used as liquefacient in the presence of the catalyst sulfuric acid. Results showed that H ions could heat the solution effectively during the plasma electrolytic liquefaction (PEL) process. The influence of some key parameters including liquefaction time, catalyst percentage, liquefacient/sawdust mass ratio, and PEG 200/glycerol molar ratio on the liquefaction yield were investigated. Based on the results of single factor experiments, response surface methodology (RSM) was applied to optimize the liquefaction process. Under the optimal conditions that is liquefaction time of 5.10min, catalyst percentage of 1.05%, liquefacient/sawdust mass ratio of 7.12/1 and PEG 200/glycerol molar ratio of 1.40/1, the liquefaction yield reached 99.48%. Hence, it could be concluded that PEL has good application potential for biomass fast liquefaction.
在这项工作中，当聚乙二醇 200（PEG 200）和甘油在催化剂硫酸的存在下用作液化剂时，成功地利用等离子体电解技术实现了木屑的快速液化。结果表明，氢离子在等离子体电解液化（PEL）过程中可以有效地加热溶液。研究了一些关键参数对液化产率的影响，包括液化时间、催化剂百分比、液化剂/木屑质量比和 PEG 200/甘油摩尔比。基于单因素实验的结果，应用响应面法（RSM）对液化工艺进行了优化。在液化时间为 5.10min、催化剂百分比为 1.05%、液化剂/木屑质量比为 7.12/1 和 PEG 200/甘油摩尔比为 1.40/1 的最佳条件下，液化产率达到 99.48%。因此，可以得出结论，PEL 对生物质的快速液化具有良好的应用潜力。
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