| 摘要 |
Gas streams (10) containing substantial concentrations of COS and H2S contaminants are cleansed by removing the bulk of the H2S in a first absorber (20), reacting the COS to form H2S in a hydrolysis unit (44), and then removing most or all of the remaining H2S using a second absorber (22). This reduces the total sulfur contained in the stream and/or reduce the number of trays required in the absorbers (20) and (22). |
