Module design of silica membrane reactor for hydrogen production via thermochemical IS process

Odtsetseg Myagmarjav, Nobuyuki Tanaka, Mikihiro Nomura, Shinji Kubo

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The potential of the silica membrane reactors for use in the decomposition of hydrogen iodide (HI) was investigated by simulation with the aim of producing CO 2 -free hydrogen via the thermochemical water-splitting iodine-sulfur process. Simulation model validation was done using the data derived from an experimental membrane reactor. The simulated results showed good agreement with the experimental findings. The important process parameters determining the performance of the membrane reactor used for HI decomposition, namely, reaction temperature, total pressures on both the feed side and the permeate side, and HI feed flow rate were investigated theoritically by means of a simulation. It was found that the conversion of HI decomposition can be improved by up to four times (80%) or greater than the equilibrium conversion (20%) at 400 °C by employing a membrane reactor equipped with a tubular silica membrane. The features to design the membrane reactor module for HI decomposition of the thermochemical iodine-sulfur process were discussed under a wide range of operation conditions by evaluating the relationship between HI conversion and number of membrane tubes.

Original languageEnglish
Pages (from-to)10207-10217
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume44
Issue number21
DOIs
Publication statusPublished - 2019 Apr 23

Fingerprint

hydrogen production
Hydrogen production
iodides
modules
Silica
reactors
silicon dioxide
membranes
Membranes
Hydrogen
hydrogen
Decomposition
decomposition
Iodine
iodine
sulfur
Sulfur
water splitting
simulation
flow velocity

Keywords

  • HI decomposition
  • Hydrogen production
  • IS process
  • Membrane reactor
  • Silica membrane
  • Thermochemical cycle

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Module design of silica membrane reactor for hydrogen production via thermochemical IS process. / Myagmarjav, Odtsetseg; Tanaka, Nobuyuki; Nomura, Mikihiro; Kubo, Shinji.

In: International Journal of Hydrogen Energy, Vol. 44, No. 21, 23.04.2019, p. 10207-10217.

Research output: Contribution to journalArticle

Myagmarjav, Odtsetseg ; Tanaka, Nobuyuki ; Nomura, Mikihiro ; Kubo, Shinji. / Module design of silica membrane reactor for hydrogen production via thermochemical IS process. In: International Journal of Hydrogen Energy. 2019 ; Vol. 44, No. 21. pp. 10207-10217.
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