A pilot test plan of the thermochemical water-splitting iodine–sulfur process

Kubo, S.; Kasahara, Seiji; Okuda, Hiroyuki; Terada, Atsuhiko; Tanaka, Nobuyuki; Inaba, Yoshitomo; Ohashi, Hirofumi; Inagaki, Yoshiyuki; Onuki, Kaoru; Hino, Ryutaro

doi:10.1016/j.nucengdes.2004.08.018

Cited by 71 publications

(38 citation statements)

References 5 publications

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“…Approximately 200 thermochemical cycles of thermal water splitting that utilize various heat sources have been reported previously [3]. Among these cycles, the sulfureiodine (SeI) cycle is a leading example of exclusively thermal cycles that has been scaled up from proof-of-principle tests to a larger engineering scale facility by the Japan Atomic Energy Agency (JAEA [4]). General Atomics (GA [5]) developed an SeI hydrogen production cycle capable of producing 2 kg of hydrogen per day.…”

Section: Introductionmentioning

confidence: 99%

Towards integration of hydrolysis, decomposition and electrolysis processes of the Cu–Cl thermochemical water splitting cycle

Wang

Daggupati

Marin

et al. 2012

International Journal of Hydrogen Energy

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Section: Introductionmentioning

confidence: 99%

Towards integration of hydrolysis, decomposition and electrolysis processes of the Cu–Cl thermochemical water splitting cycle

Wang

Daggupati

Marin

et al. 2012

International Journal of Hydrogen Energy

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“…The ratio of the reaction rate of parallel reaction forming SO 2 , S, and H 2 S to that of the overall reaction, respectively n 1, n 2, n 3 Reaction order of iodine ion, sulfate ion, and hydrogen ion r I − Reaction rate denoted with iodine ion τ…”

Section: Discussionmentioning

confidence: 99%

Study on Apparent Kinetics of the Reaction between Sulfuric and Hydriodic Acids in the Iodine-Sulfur Process

Zhang

Chen

et al. 2013

Int. J. Chem. Kinet.

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The iodine-sulfur (IS) thermochemical process for hydrogen production is one of the most promising approaches in using high-temperature process heat supplied by a nuclear reactor. This process includes three reactions that form a closed cycle: the Bunsen reaction, in which iodine, water, and sulfur dioxide react to form sulfuric acid and hydriodic acid (HI); HI decomposition; and sulfuric acid decomposition. However, the side reactions between H 2 SO 4 and HI may disturb the operation of the IS closed cycle. For optimal process conditions, the reaction kinetics between H 2 SO 4 and HI should be examined. In this work, a preliminary kinetic study was conducted. Using the initial reaction rate method, the kinetic parameters of the reaction between sulfuric acid and HI, such as the apparent reaction orders and rate constant were determined. For I − , the apparent reaction order was approximately 1.77, whereas the orders for H + and SO 4 2− were 7.78 and 1.29, respectively. The apparent rate constant at 85 ± 1 • C was approximately 2.949 × 10 −11 min −1 (mol/L) −9.84 . The H + concentration had more significant influence on the reaction rate than those of SO 4 2− and I − . Such basic data provide useful information for related process design and further kinetics study. C 2013 Wiley Periodicals, Inc. Int J Chem Kinet 45: 588-

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“…Table 4 shows the temperatures of some thermochemical cycles and nuclear reactors. Among these cycles, the sulfur-iodine (S-I) cycle is a leading example of purely thermal cycles that has been scaled up from proof-ofprinciple tests to a large engineering scale by the Japan Atomic Energy Agency (JAEA, [Kubo et al, 2004]). Among the hybrid thermal cycles, the copper-chlorine (Cu-Cl) cycle is a leading example and its scale-up is underway at the University of Ontario Institute of Technology in collaboration with its partners that include Atomic Energy of Canada Limited (AECL).…”

Section: Thermal Integration Of Thermochemical Cycles and Nuclear Reamentioning

confidence: 99%

Water Splitting Technologies for Hydrogen Cogeneration from Nuclear Energy

Wang¹,

Naterer²

2011

Nuclear Power - Deployment, Operation and Sustainability

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A pilot test plan of the thermochemical water-splitting iodine–sulfur process

Cited by 71 publications

References 5 publications

Towards integration of hydrolysis, decomposition and electrolysis processes of the Cu–Cl thermochemical water splitting cycle

Towards integration of hydrolysis, decomposition and electrolysis processes of the Cu–Cl thermochemical water splitting cycle

Study on Apparent Kinetics of the Reaction between Sulfuric and Hydriodic Acids in the Iodine-Sulfur Process

Water Splitting Technologies for Hydrogen Cogeneration from Nuclear Energy

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