Absorption of Hydrogen Sulfide into Aqueous Ferric Chloride Solutions
Absorption of Hydrogen Sulfide into Aqueous Ferric Chloride Solutions
复制标题
氯化铁水溶液吸收硫化氢
DOI：
10.1252/jcej.30.500
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
H. Aikawa
中科院分区：
文献类型：
--
作者：
S. Asai;Hidemi Nakamura;H. Aikawa
在界面平坦的搅拌槽中进行了FeCl3水溶液对H_2S的吸收实验，利用测定的大范围离子强度、pH和温度范围内的吸收速率数据，分析了该体系的反应动力学和机理。结果表明，与H_2S反应的物种为FeOH~(2+)，其吸收速率可用H_2S与FeO_2~+之间的不可逆(1，1)级反应的气体吸收理论来定量解释。通过对H_2S-Fe_2(SO_4)_3水溶液体系的比较，推测在Fe(III)水溶液中吸收H_2S时，与H_2S反应的物种是FeOH_2+，与生成铁盐的阴离子种类无关，反应动力学和反应机理骨架是一致的。
Absorption experiments of H2S into aqueous FeCl3 solutions were performed in an agitated vessel with a flat interface, and the reaction kinetics and mechanism for this system were analyzed using the data of the absorption rates measured over wide ranges of ionic strength, pH and temperature. It was found that the species which reacts with H2S is FeOH2+, and the absorption rates could be explained quantitatively by the theory of gas absorption with an irreversible (1,1)-th order reaction between H2S and FeOH2+. From the comparison with our previous data for a H2S-aqueous Fe2(SO4)3 solution system, it was inferred that the species reacting with H2S in the absorption of H2S into aqueous Fe(III) solutions is FeOH2+, independent of the kind of anion to form iron salt, and the reaction kinetics and skeleton of reaction mechanism are identical.