| 摘要 |
<p>H2S or CO2 are removed on an industrial scale from the compressed gases, obtained in the degassing of solid fuels or in the gasification of solid and liquid fuels and in conversion and methane cracking, by potash scrubbing and potash lye regeneration, in which case the regeneration has been carried out in relatively thick bubble-cap plate columns having a low plate number. The novel process is to achieve, in H2S removal, limit concentrations of 2 mg/Nm<3> (S.T.P.) without the inclusion of additional H2S fine purification. The desorber stage is designed with a theoretical plate number or separation stage number which roughly corresponds to the plate number or separation stage number installed in the absorber stage. The residual H2S content of a regenerated lye was significantly increased. Purification of coke gas.</p> |
