The Effect of Competitive Adsorption and External Mass Transfer on Hydrogen Permeation through Pd/Ag Membranes

摘要

Pd/Ag composite membranes have been to study the water gas shift and steam reforming reactions with apparaent beneficial effects in terms of increased conversion of the feed gases CO and CH_4 respectively (1-4). However, there have been few investigations concerned with possible retardation of the permeation rates of hydrogen thorugh Pd/Ag membranes by gaseous components of these reaction mixtures or of pouisoning of the Pd as such.