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Chin. Phys. B, 2019, Vol. 28(4): 048803    DOI: 10.1088/1674-1056/28/4/048803
INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY Prev   Next  

Plasma electrolytic liquefaction of sawdust

Cong-Cong Jiang(蒋匆聪)1, Shi-Yun Liu(刘诗筠)2, Zhe Feng(冯哲)1, Zhi Fang(方志)2, Xian-Hui Zhang(张先徽)1, Dan-Hua Mei(梅丹华)2, Deng-Ke Xi(席登科)1, Bing-Yu Luan(栾秉钰)1, Xing-Quan Wang(王兴权)3, Si-Ze Yang(杨思泽)4
1 Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Institute of Electromagnetics and Acoustics, Department of Electronic Science, College of Electronic Science and Technology, Xiamen University, Xiamen 361005, China;
2 College of Electrical Engineering and Control Science, Nanjing Technology University, Nanjing 211816, China;
3 School of Physics and Electronic Information;Institute of Low Temperature Plasma Technology, Gannan Normal University, Ganzhou 341000, China;
4 Department of Electronics, College of Information Engineering, Zhengzhou University, Zhengzhou 450001, China
Abstract  

As a renewable carbon resource, biomass can be converted into polyols, aromatic hydrocarbons, alkanes, and other products by traditional catalytic liquefaction method, which has been widely used in production and life. The efficient development and utilization of biomass energy will play a very positive role in solving the problems of energy and ecological environment. A way of combining the plasma electrolysis with traditional catalytic liquefaction realizes the efficient liquefaction of sawdust, which provides a new liquefaction way for traditional biomass conversion. In this experiment, the effects of solution composition, catalyst content and power supply on solution resistance and liquefaction rate are analyzed. It is found that solution composition and catalyst content have a great influence on solution resistance. The results show that the liquefaction rate is highest and the resistance is smallest when the solution resistance is 500 Ω. The liquefaction rate is greatly affected by the solution temperature, and the solution temperature is determined by the output power between the two electrodes. The output power includes the heating power of the electric field and the discharge power of the plasma. We measure the electric potential field distribution in the solution and the plasma power. It is found that the output power between the two poles increases nonlinearly (from 0 to 270 W) with time. In two minutes, the electric field heating power increases from 0 to 105 W and then decreases to 70 W, while the plasma power increases from 0 to 200 W. It is well known that in the first 70 seconds of the experiment the electric field heating is dominant, and then the plasma heating turns into a main thermal source. In this paper, plasma electrolysis and traditional catalytic liquefaction are combined to achieve the efficient liquefaction of sawdust, which provides a new way for biomass liquefaction.

Keywords:  biomass liquefaction      plasma electrolytic  
Received:  19 December 2018      Revised:  31 January 2019      Accepted manuscript online: 
PACS:  88.05.Ec (Renewable energy targets)  
  88.20.J- (Biomass conversion methods)  
  88.20.D- (Biomass energy sources)  
  52.80.Wq (Discharge in liquids and solids)  
Fund: 

Project supported by the National Natural Science Foundation of China (Grant No. 51877184).

Corresponding Authors:  Xian-Hui Zhang, Dan-Hua Mei     E-mail:  zhangxh@xmu.edu.cn;danhuam@126.com

Cite this article: 

Cong-Cong Jiang(蒋匆聪), Shi-Yun Liu(刘诗筠), Zhe Feng(冯哲), Zhi Fang(方志), Xian-Hui Zhang(张先徽), Dan-Hua Mei(梅丹华), Deng-Ke Xi(席登科), Bing-Yu Luan(栾秉钰), Xing-Quan Wang(王兴权), Si-Ze Yang(杨思泽) Plasma electrolytic liquefaction of sawdust 2019 Chin. Phys. B 28 048803

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