| 摘要 |
For recovery of low-boiling hydrocarbons by scrubbing, the crude gas mixture which contains lowboiling and high-boiling hydrocarbons, is treated with a scrubbing agent, by which the high-boiling components are scrubbed-out of the gas mixture. The loaded scrubbing agent, with the addition of liquid medium miscible with the scrubbing agent and which reduces the solubility for the scrubbed-out hydrocarbons, is regenerated and the completely regenerated scrubbing agent is recycled to the scrubbing. The regeneration is preferably divided into the following individual steps: (a) stripping of the loaded scrubbing agent, optionally with addition of medium, (b) addition of the liquid medium to partially regenerate scrubbing agent, decanting of the split phases, (c) stripping of the resultant decanted scrubbing agent/medium mixture, and (d) rectifying the scrubbing agent/medium mixture to separate the scrubbing agent.
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