Development of a MEMS channel device for hydrogen gas separation based on the soret effect

Takahiro Wako, Masae Shimizu, Sohei Matsumoto, Naoki Ono

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Energy sources independent of fossil fuels or atomic power are of great importance to achieve a sustainable society from the viewpoint of environmental conservation and benefits. Hydrogen is considered as one of the main candidates for new sources. The steam reforming method is a major contemporary process for manufacturing hydrogen, during which carbon dioxide is simultaneously generated. Therefore, an additional process that can separate hydrogen from carbon dioxide is necessary. For this reason, we proposed the use of a new method based on the Soret effect for the separation of hydrogen and carbon dioxide. The Soret effect is capable of producing a concentration difference only by imposing a temperature difference. However, in previous studies, our group found that a single-step separation process could increase the concentration by only a few percent. Thus, a multi-step separation process is necessary for obtaining high gas concentration. In this study, we adopted micro-electromechanical system (MEMS) fabrication technology to develop a separation device and performed single-step hydrogen-separation experiments. The MEMS technology applied in this study has shown potential for the miniaturization of the device and enhancement of separation cycle number for future experiments.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalJournal of Thermal Science and Technology
Volume9
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

microelectromechanical systems
MEMS
Hydrogen
Gases
hydrogen
gases
Carbon Dioxide
carbon dioxide
Carbon dioxide
fossil fuels
Steam reforming
miniaturization
energy sources
dioxides
Fossil fuels
steam
conservation
Conservation
temperature gradients
manufacturing

Keywords

  • Concentration difference
  • Hydrogen separation
  • MEMS
  • Micro-channel
  • Soret effect
  • Temperature difference

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Instrumentation
  • Engineering (miscellaneous)

Cite this

Development of a MEMS channel device for hydrogen gas separation based on the soret effect. / Wako, Takahiro; Shimizu, Masae; Matsumoto, Sohei; Ono, Naoki.

In: Journal of Thermal Science and Technology, Vol. 9, No. 1, 01.01.2014, p. 1-12.

Research output: Contribution to journalArticle

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