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Membranes
CRI/Criterion’s high temperature H2 separation membrane technology is maturing rapidly and stands at the threshold of commercialisation. The membrane reactor is used in the production of pure hydrogen by steam reforming of hydrocarbons.
The hydrogen produced is of sufficiently high purity for use in refinery units producing low-sulphur fuels, as well as clean power utilities and various high temperature fuel cell applications.
The highly intensified and compact reactor integrates steam reforming, water gas-shift reaction, purification and separation in one unit to produce separate streams of pure hydrogen and compressed CO2. The unit operates at significantly lower temperature and is more energy efficient than the current state-of-the-art methods.
Exciting new milestones have recently been reached in advancement of the membrane technology. These include the demonstration of commercial longevity for Pd, Pd-Au and Pd-Ag alloy membranes at process conditions. The new alloy membranes are expected to provide more robust membranes with higher flux and are likely to achieve greater acceptance among early adopters in an emerging high temperature H2 membrane market.