DEVICE FOR REMOVING OXYGEN-CONTAINING ORGANIC COMPOUNDS FROM MIXTURES OF VARIOUS HYDROCARBON COMPOUNDS

摘要

The aim of the invention is to provide a method for removing oxygen-containing organic compounds from mixtures of various hydrocarbon compounds. According to the inventive method, a liquid phase (1) containing hydrocarbons and oxygenates is supplied to a first column (3) where a light fraction, being the top product (5), is separated by distillation and where a heavier C4+ fraction is removed from the bottom of the column (3). The light fraction (5) and a gaseous mixture of hydrocarbons and oxygenates (2) are then supplied to a second column (7). A separation by distillation into a light and a heavy hydrocarbon fraction takes place, wherein an additional solvent (6) is fed to the upper part of the column (7), which dissolves the oxygenates prior to discharging them in the bottom product (9) of the column. As a result, an oxygenate-free hydrocarbon product exits the head of the column (7) and a mixture of oxygenates, solvents and remaining hydrocarbons (9) is removed from the bottom of the column. The solvent can be partially or completely regenerated and recycled to the extractive distillation column.