发明名称 |
Pressure swing adsorption process for chlorine plant offgas |
摘要 |
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 The vent gas withdrawn from the process is essentially free of chlorine.
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申请公布号 |
US5376164(A) |
申请公布日期 |
1994.12.27 |
申请号 |
US19930103368 |
申请日期 |
1993.08.09 |
申请人 |
UOP |
发明人 |
ZARCHY, ANDREW S.;CHAO, CHIEN C.;MAURER, RICHARD T. |
分类号 |
B01D53/047;C01B3/56;C01B7/07;(IPC1-7):B01D53/04 |
主分类号 |
B01D53/047 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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