Simulation of sulfur-iodine thermochemical hydrogen production plant coupled to high-temperature heat source

Nicholas Brown, Seungmin Oh, Shripad T. Revankar, Karen Vierow, Salvador Rodriguez, Randall Cole, Randall Gauntt

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    The sulfur-iodine (SI) cycle is one of the leading candidates in thermochemical processes for hydrogen production. In this paper a simplified model for the SI cycle is developed with chemical kinetics models of the three main SI reactions: the Bunsen reaction, sulfuric acid decomposition, and hydriodic acid decomposition. Each reaction was modeled with a single control volume reaction chamber. The simplWed model uses basic heat and mass balance for each of the main three reactions. For sulfuric acid decomposition and hydriodic acid decomposition, reaction heat, latent heat, and sensible heat were considered. Since the Bunsen reaction is exother mic and its overall energy contribution is small, its heat energy is neglected. However, the input and output streams from the Bunsen reaction are accounted for in balancing the total stream mass flow rates from the SI cycle. The heat transfer between the reactor coolant (in this case helium) and the chemical reaction chamber was modeled with transient energy balance equations. The steady- state and transient behavior of the coupled system is studied with the model, and the results of the study are presented. It was determined from the study that the hydriodic acid decomposition step is the rate-limiting step of the entire SI cycle.

    Original languageEnglish (US)
    Pages (from-to)95-106
    Number of pages12
    JournalNuclear Technology
    Volume167
    Issue number1
    DOIs
    StatePublished - Jan 1 2009

    Fingerprint

    hydrogen production
    Hydrogen production
    heat sources
    Iodine
    iodine
    sulfur
    Sulfur
    Decomposition
    decomposition
    Sulfuric acid
    simulation
    Acids
    Temperature
    cycles
    sulfuric acid
    heat
    acids
    Latent heat
    Energy balance
    Reaction kinetics

    All Science Journal Classification (ASJC) codes

    • Nuclear and High Energy Physics
    • Nuclear Energy and Engineering
    • Condensed Matter Physics

    Cite this

    Brown, N., Oh, S., Revankar, S. T., Vierow, K., Rodriguez, S., Cole, R., & Gauntt, R. (2009). Simulation of sulfur-iodine thermochemical hydrogen production plant coupled to high-temperature heat source. Nuclear Technology, 167(1), 95-106. https://doi.org/10.13182/NT09-A8854
    Brown, Nicholas ; Oh, Seungmin ; Revankar, Shripad T. ; Vierow, Karen ; Rodriguez, Salvador ; Cole, Randall ; Gauntt, Randall. / Simulation of sulfur-iodine thermochemical hydrogen production plant coupled to high-temperature heat source. In: Nuclear Technology. 2009 ; Vol. 167, No. 1. pp. 95-106.
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    abstract = "The sulfur-iodine (SI) cycle is one of the leading candidates in thermochemical processes for hydrogen production. In this paper a simplified model for the SI cycle is developed with chemical kinetics models of the three main SI reactions: the Bunsen reaction, sulfuric acid decomposition, and hydriodic acid decomposition. Each reaction was modeled with a single control volume reaction chamber. The simplWed model uses basic heat and mass balance for each of the main three reactions. For sulfuric acid decomposition and hydriodic acid decomposition, reaction heat, latent heat, and sensible heat were considered. Since the Bunsen reaction is exother mic and its overall energy contribution is small, its heat energy is neglected. However, the input and output streams from the Bunsen reaction are accounted for in balancing the total stream mass flow rates from the SI cycle. The heat transfer between the reactor coolant (in this case helium) and the chemical reaction chamber was modeled with transient energy balance equations. The steady- state and transient behavior of the coupled system is studied with the model, and the results of the study are presented. It was determined from the study that the hydriodic acid decomposition step is the rate-limiting step of the entire SI cycle.",
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    Brown, N, Oh, S, Revankar, ST, Vierow, K, Rodriguez, S, Cole, R & Gauntt, R 2009, 'Simulation of sulfur-iodine thermochemical hydrogen production plant coupled to high-temperature heat source', Nuclear Technology, vol. 167, no. 1, pp. 95-106. https://doi.org/10.13182/NT09-A8854

    Simulation of sulfur-iodine thermochemical hydrogen production plant coupled to high-temperature heat source. / Brown, Nicholas; Oh, Seungmin; Revankar, Shripad T.; Vierow, Karen; Rodriguez, Salvador; Cole, Randall; Gauntt, Randall.

    In: Nuclear Technology, Vol. 167, No. 1, 01.01.2009, p. 95-106.

    Research output: Contribution to journalArticle

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