Studies of self-supported 1.6 μm Pd/23 wt.% Ag membranes during and after hydrogen production in a catalytic membrane reactor

被引：36

作者：

Arstad, B.

Venvik, H.

Klette, H.

Walmsley, J. C.

Tucho, W. M.

Holmestad, R.

Holmen, A.

Bredesen, R.

机构：

[1] Norwegian Univ Sci & Technol, Dept Chem Engn, NO-7491 Trondheim, Norway

[2] SINTEF Mat & Chem, N-7465 Trondheim, Norway

[3] SINTEF Mat & Chem, N-0314 Oslo, Norway

[4] NTNU, Dept Phys, N-7491 Trondheim, Norway

来源：

CATALYSIS TODAY | 2006年 / 118卷 / 1-2期

关键词：

water-gas shift; palladium; methanol steam reforming; membrane reactor;

D O I：

10.1016/j.cattod.2006.01.041

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Water-gas shift (WGS) and methanol steam reforming (MSR) were performed in a catalytic membrane reactor configuration using self-supported Pd/23 wt.% Ag membranes of 1.6 mu m thickness. A commercial Cu/ZnO/support catalyst was used. Effects on hydrogen permeation and membrane stability were investigated under the application of relevant conditions. The membranes were studied with X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) before and after usage to characterize the surface composition, microstructure and texture. The self-supported membrane configuration allows exploration of the membrane bulk and surface effects without any influence of a porous support. The extremely low membrane thickness means a greater influence of surface processes compared to thicker membranes. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：63 / 72

页数：10

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