As a fall-back response to the possibility of Global Warming due to increasing concentrations of greenhouse gases in the atmosphere, British Coal is investigating Low-CO2 Power Generation options. One of the most promising options is an Integrated Gasification Combined Cycle (IGCC) system using a membrane separation unit to separate H2 and CO2. However, the performance requirements cannot be met by currently available commercial membranes. A small-scale membrane permeation test rig has been designed and built at CRE to aid development of novel membranes.This paper describes tests carried out on Pd/Ag alloy membranes, which are the most promising for the separation of H2 and CO2. The tests examined the variation of permeation rate with pressure, temperature, and pressure drop. Results of the tests are reported, with recommendations for further work to improve performance.
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- Membrane Development for the Separation of H2 and CO2: Pd/Ag Alloy Membranes
I. R. Summerfield
A. P. Davidson
- Springer Netherlands