| 摘要 |
The invention provides a process for producing a gas stream depleted of RSH from a feed gas stream comprising natural gas, RSH and aromatic compounds selected from the group of benzene, toluene, o-xylene, m-xylene and p-xylene, in the range of from 1 ppmv to 1 vol%, based on the total feed gas stream, the process comprising the steps of: (a) contacting the feed gas stream with absorbing liquid comprising a physical solvent in an aromatic compound removal zone to obtain loaded absorbing liquid comprising aromatic compounds selected from the group of benzene, toluene, o-xylene, m-xylene and p-xylene and a gas stream depleted of these aromatic compounds; (b) contacting the gas stream obtained in step (a) with solid adsorbent in a mercaptan removal zone to obtain solid adsorbent loaded with RSH and the gas stream depleted of RSH. |
