Raynard Christianson Sanito1,2, Ya-Wen Chen2, Sheng-Jie You2,3,4, Hsi-Hsien Yang5, Yen-Kung Hsieh6, Ya-Fen Wang This email address is being protected from spambots. You need JavaScript enabled to view it.2,3,4

1 Department of Civil Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
2 Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
3 R & D Centre for Membrane Technology, Chung Yuan Christian University, Taoyuan 32023, Taiwan
4 Center for Environmental Risk Management, Chung Yuan Christian University, Taoyuan 32023, Taiwan
5 Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung 413310, Taiwan
6 Marine ecology and conservation research center, National Academy of Marine Research, Kaohsiung 80661, Taiwan


 

Received: May 22, 2020
Revised: July 14, 2020
Accepted: July 14, 2020

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.4209/aaqr.2020.05.0252 


Cite this article:

Sanito, R. C., Chen, Y. W., You, S. J., Yang, H. H., Hsieh, Y. K. and Wang, Y. F. (2020). Hydrogen and Methane Production from Styrofoam Waste Using an Atmospheric-pressure Microwave Plasma Reactor. Aerosol Air Qual. Res. https://doi.org/10.4209/aaqr.2020.05.0252


HIGHLIGHTS

  • Hydrogen and methane production from PSF waste are discussed in this manuscript.
  • PSF waste can be recycled as gases in an atmospheric-pressure microwave plasma reactor.
  • Nitrogen gas produces better concentration of hydrogen and methane compared to argon gas.
  • Microwave power plays an important role to generate an optimum hydrogen and methane.
 

ABSTRACT


Polystyrene foam (PSF), has been used widely in oyster farming in Taiwan and is responsible for generate approximately 120,000 – 200,000 pieces floating PSF waste every year, this causes some issues related to its treatment, including, clogging during incineration, lack of economic benefits, and carcinogenic, and non-biodegradable components, and it also a menace to the seashore due to becoming debris. In this study, PSF waste was treated via an atmospheric-pressure microwave plasma reactor to obtain methane (CH4) and hydrogen (H2). The using of nitrogen as the carrier gas and higher microwave power (1200 W) show greater results as compared to argon in the production of H2 at concentrations of 4739 ppm, while the results for CH4 were less than 300 ppm. Higher amounts of PSF waste (0.2 g) indicate the production of CH4 and H2 at concentrations of 19,657 ppm and 440 ppm, respectively. The results of SEM-EDX and XRD testing confirmed the transformation of the PSF structure and a reduction of carbon (C) in the final residue. The application of atmospheric-pressure microwave plasma not only treats PSF waste but produces H2 and CH4 that recycles PSF waste as energy gases. This research contributed to an understanding of how plasma technology can be used to treat solid waste and produce valuable gases.


Keywords: CH4; H2; Microwave power; Nitrogen; PSF.



Aerosol Air Qual. Res. 20:-. https://doi.org/10.4209/aaqr.2020.05.0252 


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