Experimental study on the purification of HIx phase in the iodine–sulfur thermochemical hydrogen production process

Bai, Shangkui; Wang, Laijun; Han, Qi; Zhang, Ping; Chen, Songzhe; Meng, Xianghai; Xu, Jingming

doi:10.1016/j.ijhydene.2012.10.035

Cited by 17 publications

(1 citation statement)

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“…Bai et al (2009Bai et al ( , 2013 have studied reverse Bunsen reaction and have concluded that higher temperature favor formation of SO2 and I2 by reverse Bunsen reaction compared to sulfur or H2S formation in the side reaction. So it can be concluded that low temperature and high iodine content will subsidies reverse Bunsen reaction and side reaction.…”

Section: Reverse Bunsen Reactionmentioning

confidence: 99%

Effects of Excess Iodine and Water on Bunsen Reaction for Over-Azeotropic Limit

Satpute¹,

Park

Revankar

2015

ACER

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Phase separation is of major importance in a Bunsen reaction in sulfur-iodine thermochemical cycle for hydrogen generation. Extensive experimental data on Bunsen reaction was collected and assembled over range of reaction temperature 293 -393.5 K, excess iodine in the range of 1-16 moles, and excess water in the range of 1-22 moles. The data was systematically analyzed to see key parametric effects on the reaction. The effects of iodine, water and temperature were studied on density ratio, distribution of components in two phases, reverse Bunsen reaction, SO2 dissolution, and azeotrope limits. Best operating conditions were obtained to for which Bunsen reaction would be economical. The analysis indicated that iodine excess of 4 to 6 moles, water excess of 10.5 to 12.5 moles, and temperature range of 345-360 K are the best operating range for the Bunsen reaction. These operating ranges ensure no side reaction, economical operation by avoiding excess iodine, water and complicated options to break or bypass azeotrope. In addition reverse Bunsen and SO2 solubility study are also considered for better understanding of process. Based on this study unique points of operation are recommended.

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Section: Reverse Bunsen Reactionmentioning

confidence: 99%