Pressure swing adsorption with intermediate product recovery usi

Details Pressure swing adsorption with intermediate product recovery usi Pressure swing adsorption with intermediate product recovery usi

1989-12-28

1991-08-27

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 31, 55 58, 55 62, 55 68, 55 74, B01D 5304

Patent

active

050429957

ABSTRACT:
A pressure swing adsorption process is provided for the separation of a feedstream containing less readily, intermediately readily, and more readily adsorbable components using first and second adsorption zones. The second adsorption zone utilizes a cycle that includes a cocurrent displacement step and the intermediately adsorbable components are recovered therefrom by countercurrent depressurization. The first adsorption zone is purged with a stream from the second adsorption zone to recover the more readily adsorbable component. In one aspect of the invention, there is provided a methanol reforming process wherein hydrogen and carbon monoxide product streams are recovered from a methanol reactor effluent stream also containing components selected from methanol, methane, dimethyl ether, carbon dioxide, oxygen and water.

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