Gas separation: processes – Compressing and indirect cooling of gaseous fluid mixture to... – And solid sorption
Patent
1993-08-09
1994-12-27
Spitzer, Robert
Gas separation: processes
Compressing and indirect cooling of gaseous fluid mixture to...
And solid sorption
95 96, 95132, 95902, B01D 5304
Patent
active
053761642
ABSTRACT:
A process is provided for the removal and recovery of chlorine from a chlorine plant offgas stream. A pressure swing adsorption (PSA) process is used to remove from the chlorine plant offgas a vent gas stream comprising hydrogen and a tail gas stream comprising chlorine which is subsequently liquefied. The PSA zone comprises at least 2 adsorption beds, wherein each of the adsorption beds comprises a first adsorption layer and at least a second adsorption layer. The first adsorption layer contains a weak adsorbent selective for the adsorption of chlorine and has a large pore structure with 12 member rings or more. The second adsorption layer contains a strong adsorbent selective for the adsorption of chlorine and has a small pore structure with 10 member rings, or less. The vent gas withdrawn from the process is essentially free of chlorine.
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Chao Chien C.
Maurer Richard T.
Zarchy Andrew S.
McBride Thomas K.
Silverman Richard P.
Spitzer Robert
Tolomei John G.
UOP
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