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Kinetics and modeling of hydrogen iodide decomposition for a bench-scale sulfur–iodine cycle

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  • Nguyen, Thanh D.B.
  • Gho, Yun-Ki
  • Cho, Won Chul
  • Kang, Kyoung Soo
  • Jeong, Seong Uk
  • Kim, Chang Hee
  • Park, Chu-Sik
  • Bae, Ki-Kwang

Abstract

In this work, the decomposition of hydrogen iodide (HI) over platinum catalyst in a frame work of the development of a bench-scale Sulfur–Iodine (S–I) cycle is studied. The catalyst Pt/γ-alumina 1.0wt% is prepared by impregnation–calcination method. The experiments of HI decomposition over the as-prepared catalyst are conducted at the temperature range of 350–550°C and at the atmospheric pressure. The experimental data are then used to estimate new kinetic parameters for HI decomposition on the basis of Langmuir–Hinshelwood type where the surface reaction is considered as the rate-limiting step. The kinetics with the estimated parameters shows a reasonable agreement with the experimental data. It also reflects the fact that, HI conversion is significantly decreased with a small amount of iodine present in the feeding solution.

Suggested Citation

  • Nguyen, Thanh D.B. & Gho, Yun-Ki & Cho, Won Chul & Kang, Kyoung Soo & Jeong, Seong Uk & Kim, Chang Hee & Park, Chu-Sik & Bae, Ki-Kwang, 2014. "Kinetics and modeling of hydrogen iodide decomposition for a bench-scale sulfur–iodine cycle," Applied Energy, Elsevier, vol. 115(C), pages 531-539.
    • Handle: RePEc:eee:appene:v:115:y:2014:i:c:p:531-539
    DOI: 10.1016/j.apenergy.2013.09.041
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    References listed on IDEAS

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    1. Li, Hongqiang & Tan, Geng & Zhang, Wenyu & Suppiah, Sam, 2012. "Development of direct resistive heating method for SO3 decomposition in the S–I cycle for hydrogen production," Applied Energy, Elsevier, vol. 93(C), pages 59-64.
    2. Zhang, Yanwei & Zhu, Qiaoqiao & Lin, Xiangdong & Xu, Zemin & Liu, Jianbo & Wang, Zhihua & Zhou, Junhu & Cen, Kefa, 2013. "A novel thermochemical cycle for the dissociation of CO2 and H2O using sustainable energy sources," Applied Energy, Elsevier, vol. 108(C), pages 1-7.
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    Cited by:

    1. Shin, Youngjoon & Lee, Taehoon & Lee, Kiyoung & Kim, Minhwan, 2016. "Modeling and simulation of HI and H2SO4 thermal decomposers for a 50NL/h sulfur-iodine hydrogen production test facility," Applied Energy, Elsevier, vol. 173(C), pages 460-469.
    2. Shin, Youngjoon & Lim, Jihong & Lee, Taehoon & Lee, Kiyoung & Jo, Changkeun & Kim, Minhwan, 2017. "Designs and CFD analyses of H2SO4 and HI thermal decomposers for a semi-pilot scale SI hydrogen production test facility," Applied Energy, Elsevier, vol. 204(C), pages 390-402.

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