| 高性能钯膜及其在氨分解制氢中的应用 |
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| 引用本文： | 王晓光,韦永德,张建,侯守福,徐恒泳,李文钊. 高性能钯膜及其在氨分解制氢中的应用[J]. 化工学报, 2006, 57(12): 2897-2901 |
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| 作者姓名： | 王晓光 韦永德 张建 侯守福 徐恒泳 李文钊 |
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| 作者单位： | 哈尔滨工业大学应用化学系,黑龙江,哈尔滨,150001;中国科学院大连化学物理研究所,辽宁,大连,116023 |
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| 基金项目： | 中国石油集团公司资助项目 |
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| 摘 要： | 引 言 液氨催化分解制氢工艺具有价格低廉、安全性好、附加值低、产物不含COx杂质等优点[1].此外,氨分解制氢体系的理论质量储氢量是17.6%,明显高于电解水(11.1%)、甲醇-水蒸气重整(12%)、汽油-水蒸气重整(12.4%)、氢化物水解(5.2%～8.6%)等制氢体系.但是,以纯氨为原料分解后只能得到含氢75%的混合气,而燃料电池只有在使用纯氢为原料气时才具有最高的工作效率,因此应当对氨分解产物中的氢进行提纯.
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| 关 键 词： | 钯膜 氨分解 现场制氢 膜分离 |
| 文章编号： | 0438-1157（2006）12-2897-05 |
| 收稿时间： | 2006-01-06 |
| 修稿时间： | 2006-01-062006-03-02 |
High-performance Pd membrane and its application in H2 production from NH3 decomposition |
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| WANG Xiaoguang,WEI Yongde,ZHANG Jian,HOU Shoufu,XU Hengyong,LI Wenzhao. High-performance Pd membrane and its application in H2 production from NH3 decomposition[J]. Journal of Chemical Industry and Engineering(China), 2006, 57(12): 2897-2901 |
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| Authors: | WANG Xiaoguang WEI Yongde ZHANG Jian HOU Shoufu XU Hengyong LI Wenzhao |
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| Affiliation: | 1. Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China; 2 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China |
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| Abstract: | A high-performance Pd membrane for H2 separation was prepared by the modified electroless plating method.In order to obtain pure H2 for fuel cell use,the NH3 cracker was integrated with a Pd membrane-based purifier and the permeation performance of Pd membrane (H2 flux, recovery yield and purity)was investigated at 510℃ and a pressure range from 0.1 MPa to 0.5 MPa.High separation efficiency was achieved with such an intergrated system.A 75 cm3·cm-2·min-1H2 flow with purity as high as 99.93% could be obtained.Throughout a 120 h stability test, the H2 flux and recovery yield were maintained at 63 cm3·cm-2·min-1and 85% respectively. |
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| Keywords: | palladium membrane ammonia decomposition on-site H2 production membrane separation |
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