Optimization of liquid-liquid phase separation characteristics in the Bunsen section of the sulfur-iodine hydrogen production process

被引：31

作者：

Zhu, Qiaoqiao ^{[1
]}

Zhang, Yanwei ^{[1
]}

Zhou, Chao ^{[1
]}

Wang, Zhihua ^{[1
]}

Zhou, Junhu ^{[1
]}

Cen, Kefa ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Sulfur-iodine thermochemical cycle; Liquid-liquid phase separation; Bunsen section; Hyper-azeotropic HI concentration;

D O I：

10.1016/j.ijhydene.2012.01.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to optimize the sulfur-iodine thermochemical cycle, a series of experiments were conducted to investigate the separation characteristics of the liquid-liquid phase in the H2SO4/HI/I-2/H2O quaternary solution produced by Bunsen reaction. The effects of the solution composition in the feed and the operating temperature on the separation characteristics were analyzed to determine the preferable operating conditions in the Bunsen section. The increases in both the iodine content and the operating temperature improved the separation characteristics of the liquid-liquid phase when the occurrence of secondary reactions was neglected. The amount of impurities in both phases obviously decreased as the iodine content increased. The effect of the iodine content was more significant relative to that of the operating temperature. The optimal operating conditions were proposed to achieve the concentrations of HI in the HIx phase in excess of the azeotropic composition. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：6407 / 6414

页数：8

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