Power+Energy Hydrogen Separator Operating Parameters

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Basic Terms:

Reformate: Outlet gas mixture from Fuel Reformer

Raffinate: Waste gas stream out from separator

Permeate: Ultra-pure hydrogen stream from the separator

Operating Parameters:

Maximum reformate inlet pressure = 250 psig

Operating temp range = 300-500 °C, recommended temperature = 425C

Maximum pressure differential = 250 psi (reformate press – permeate press)

Maximum reverse pressure differential = 50 psi (permeate press. – reformate press.)

Membranes should not be exposed to H2 when below (300 °C) to avoid embrittlement.

• It is recommended that a backpressure regulator is installed in the raffinate line.
• Preheat membranes with steam, hot air or hot inert gas prior to flow of H2 or reformate.
• Purge membranes with steam or inert gas prior to allowing membranes to cool below 300°C.

It is recommended to monitor the raffinate outlet gas temperature in order to ensure that the membrane temperature remains above 300 C while h2 containing gases are flowing through the separator.

Caution: It is essential that catalyst particles from the reformer are prevented from entering the hydrogen separator.

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