高性能钯膜及其在氨分解制氢中的应用  

High-performance Pd membrane and its application in H_2 production from NH_3 decomposition

作　　者：王晓光[1] 韦永德[1] 张建[2] 侯守福[2] 徐恒泳[2] 李文钊[2] 

机构地区：[1]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001 [2]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《化工学报》2006年第12期2897-2901,共5页CIESC Journal

基　　金：中国石油资助项目(M-2003102)~~

摘　　要：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 -1 H2 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 -1 and 85% respectively.A high-performance Pd membrane for H2 separation was prepared by the modified electroless plating method. In order to obtain pure He 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 cm^3·cm^-2 ·min^-1 H2 flow with purity as high as 99.93% could be obtained. Throughout a 120 h stability test, the Hz flux and recovery yield were maintained at 63 cm^3·cm^-2·min^-1 and 85% respectively.

关 键 词：钯膜 氨分解 现场制氢 膜分离 

分 类 号：O643[理学—物理化学]