发明名称 |
FREMGANGSMAADE TIL FJERNELSE AF H2S OG CO2 FRA EN GASBLANDING |
摘要 |
<p>The present invention deals with a process for removal of H2S and CO2 from a gas mixture in which: (a) the gas mixture is contacted at elevated pressure countercurrently with lean solvent which comprises a tertiary amine and a physical absorbent; (b) the loaded solvent obtained is flashed; (c) the flash gas set free in step (b) is contacted countercurrently with lean solvent under conditions which are selective for H2S removal; (d) part of the loaded solvent obtained after flashing is stripped with the gas obtained in step (c); (e) the stripped solvent obtained in step (d) is introduced as semilean solvent in step (a); (f) the gas obtained in step (d) is contacted countercurrently with lean solvent under conditions which are selective for H2S removal; and (g) loaded solvent obtained in steps (c), (b) and (f) is regenerated to yield lean solvent, wherein a gas with an H2S concentration suitable to be used in a Claus process is obtained.</p> |
申请公布号 |
DK266482(A) |
申请公布日期 |
1982.12.16 |
申请号 |
DK19820002664 |
申请日期 |
1982.06.14 |
申请人 |
SHELL INTERNATIONALE RESEARCH |
发明人 |
PAS-TOORNSTRA H M V D |
分类号 |
B01D53/14;B01D53/40;B01D53/52;B01D53/62;B01D53/64;B01D53/77;C01B17/04;C01B17/16;C10K1/14;C10K1/16;(IPC1-7):B01D/ |
主分类号 |
B01D53/14 |
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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