Process for the removal of organic interfering components from an alpha-olefin crude product

摘要

The invention relates to a process for the removal organic interfering components from an alpha olefin crude product recovered in a Fischer-Tropsch synthesis plant by extractive distillation using a scrubbing agent containing N-Methyl-2-Pyrrolidon (NMP), wherein the NMP is loaded with the organic interfering components, is then regenerated and subsequently reused in the extractive distillation. The alpha olefin crude product contains water in addition to the organic interfering components, optionally to saturation point and the scrubbing agent is freed of water during regeneration to a maximum content of 1000 ppm by weight.