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A pressure swing adsorption process includes providing a pressure swing adsorption apparatus having six beds, and equalizing a pressure of each of the six beds in four steps, wherein at all times during the process, at least one of the six beds is providing offgas. The process is particularly suitab

A pressure swing adsorption process includes providing a pressure swing adsorption apparatus having six beds, and equalizing a pressure of each of the six beds in four steps, wherein at all times during the process, at least one of the six beds is providing offgas. The process is particularly suitable for purifying hydrogen from a feed gas mixture containing hydrogen and at least one of methane, carbon dioxide, carbon monoxide, nitrogen and water vapor.

대표청구항 ▼

1. A pressure swing adsorption process comprising providing a pressure swing adsorption apparatus having six beds, and equalizing a pressure of each of said six beds in four steps, wherein at all times during said process, at least one of said six beds is being counter-currently depressurized or cou

1. A pressure swing adsorption process comprising providing a pressure swing adsorption apparatus having six beds, and equalizing a pressure of each of said six beds in four steps, wherein at all times during said process, at least one of said six beds is being counter-currently depressurized or counter-currently purged to provide an offgas from a feed end of said at least one bed.