METHODS OF PRODUCING SUBSTANTIALLY LINEAR PARAFFINS AND APPARATUS THEREFOR Russian patent published in 2015 - IPC C07C7/10 C07C7/13 C07C9/15 C07C9/22 C10G25/03 C10G21/00 C10G53/04 C10G53/08 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing substantially linear paraffins from raw material which contains normal hydrocarbons, weakly branched hydrocarbons, highly branched hydrocarbons and contaminant components. The method includes: bringing said raw material into contact with an ionic liquid stream and extracting contaminant components to obtain a purified hydrocarbon stream; cleaning the purified hydrocarbon stream using a solvent stream to extract any ionic liquid from the purified hydrocarbon stream; treating the purified hydrocarbon stream in mild hydrofining conditions to remove the remaining portion of contaminant components; selective adsorption of normal hydrocarbons and weakly branched hydrocarbons from the purified hydrocarbon stream using a molecular sieve to separate normal hydrocarbons and weakly branched hydrocarbons from highly branched hydrocarbons; extracting the normal hydrocarbons and weakly branched hydrocarbons from the molecular sieve using a desorbent, wherein adsorption/desorption is carried out in a system which is a system with a simulated moving bed; and separating the normal hydrocarbons and weakly branched hydrocarbons from the desorbent to obtain substantially linear paraffins.

EFFECT: use of the present method enables to avoid hydrofining in rigid conditions.

8 cl, 1 dwg