Hydrogen Palladium Membrane:

HP Series Systems, Model HP2-HP150
V-Purge System, HP200-HP 480
HP Series Repl. Palladium Cells, HP2-HP480

Heated Getter and Catalytic:

Heated Getter Purifiers, Wall Mount I&II
Heated Getter Purifiers, Wall Mount III
Catalytic Purifiers
Oxygen Purifiers

Bulk Purification:

GPT Series Bulk Palladium Purifiers
Heated Getter Bulk Purifier
Regenerable Catalytic Purifier
Getter Weld Argon Purification Systems

Special Applications:

Tritum Purifiers
Oxygen Removing Purifiers

Johnson Matthey OR series Oxygen Removing Purifiers catalytically combine hydrogen and oxygen to form water vapor. The water vapor passes off with the purified gas and can be removed, if necessary, with a desiccant or a Johnson Matthey HP series Hydrogen Purifier.

Theory
Johnson Matthey Oxygen Removing Purifiers contain a precious metal catalyst that promotes the reaction of hydrogen and oxygen gases to form water vapor, normally at ambient temperature. The two gases combine in a stoichiometric ratio of two units of hydrogen to one unit of oxygen. In order to completely eliminate hydrogen or oxygen, the other gas must be present in excess (roughly 110%) of the stoichiometric ratio to ensure the reaction is driven to completion.

Typical Applications
The Johnson Matthey OR series are most commonly used to remove oxygen from hydrogen gas streams. They provide excellent protection against local overheating of the palladium-alloy membrane in Johnson Matthey HP series Hydrogen Purifier. They are also ideal for purifying electrolytic hydrogen to be used in analytical or metallurgical applications.

In addition, Johnson Matthey OR series purifiers can also be used to remove hydrogen from oxygen or air streams. And either hydrogen or oxygen can be removed from other industrial gases, including nitrogen, argon, helium, and carbon dioxide, provided the other gas is present in the proper stoichiometric ratio.

For more information, click here to view the datasheet pdf.