HYDROGEN-PRODUCTION FROM HYDROGEN-SULFIDE BY THE FE-CL HYBRID PROCESS

被引:47
作者
MIZUTA, S
KONDO, W
FUJII, K
IIDA, H
ISSHIKI, S
NOGUCHI, H
KIKUCHI, T
SUE, H
SAKAI, K
机构
[1] IDEMITSU KOSAN CO LTD,CENT RES LABS,KIMITSU,CHIBA 22902,JAPAN
[2] EBARA CO,MINATO KU,TOKYO 108,JAPAN
关键词
D O I
10.1021/ie00055a028
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The Fe-Cl hybrid process consisting of the absorption of H2S gas by FeCl3 aqueous solution and subsequent electrolysis of FeCl2 aqueous solution was proposed as a process for decomposing H2S to H2 and S. From the fundamental study, H2S absorption with almost 100% yield at 75-degrees-C and satisfactorily low electrolysis voltage (0.7 V) at a current density of 100 mA cm-2 at 70-degrees-C were obtained. In the chemical engineering study for process development, a bubble-column H2S absorber with a rotating-cup type gas feeder and a bipolar type electrolysis cell (5 or 20 cells with an electrode area of 432 cm2) were developed. A bench-scale plant for the whole Fe-Cl hybrid process with a production capacity of 2.1 N m3 of H2 day-1 and 3 kg of S day-1 was constructed, and intermittent operation of the plant was successfully performed for 1000 h.
引用
收藏
页码:1601 / 1608
页数:8
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