Method for producing a synthetic kerosene, comprising the steps of: I) catalytical olefin production by reacting oxygenates to an olefin-containing substance mixture, II) separating an olefin-containing fraction, comprising C3/C4 olefins and C5+ hydrocarbons, from the olefin-containing substance mixture by absorption using an unloaded absorbent from a separation unit (Vb), comprising a hydrogenated fraction of C9+ paraffins and C9+ naphthenes, wherein - the unloaded absorbent is brought into contact with the olefin-containing substance mixture in an absorption column to produce an absorbent loaded with olefins and for the separation of a recycle gas, and - the olefin-containing fraction is then removed from the loaded absorbent in a desorption column, and a partially loaded absorbent, also comprising C3/C4/C5+ olefins, remains, which is either passed directly to an oligomerisation in step III) or to a separation unit (Va), and C3-C8 hydrocarbons separated there are passed to the oligomerisation in step III), and wherein a remaining recycle gas is returned to step I), wherein, during the absorption in step II), ethylene is returned with the recycle gas, III) catalytically oligomerising the olefin-containing fraction obtained in step II) to form an oligomerisate, IV) catalytically hydrogenating the oligomerisate, V) separating the unloaded absorbent after step IV) in a separation unit (Vb), wherein the unloaded absorbent is removed therefrom for absorption in step II). I) catalytical olefin production by reacting oxygenates to an olefin-containing substance mixture, II) separating an olefin-containing fraction, comprising C3/C4 olefins and C5+ hydrocarbons, from the olefin-containing substance mixture by absorption using an unloaded absorbent from a separation unit (Vb), comprising a hydrogenated fraction of C9+ paraffins and C9+ naphthenes, wherein - the unloaded absorbent is brought into contact with the olefin-containing substance mixture in an absorption column to produce an absorbent loaded with olefins and for the separation of a recycle gas, and - the olefin-containing fraction is then removed from the loaded absorbent in a desorption column, and a partially loaded absorbent, also comprising C3/C4/C5+ olefins, remains, which is either passed directly to an oligomerisation in step III) or to a separation unit (Va), and C3-C8 hydrocarbons separated there are passed to the oligomerisation in step III), and wherein a remaining recycle gas is returned to step I), wherein, during the absorption in step II), ethylene is returned with the recycle gas, - the unloaded absorbent is brought into contact with the olefin-containing substance mixture in an absorption column to produce an absorbent loaded with olefins and for the separation of a recycle gas, and - the olefin-containing fraction is then removed from the loaded absorbent in a desorption column, and a partially loaded absorbent, also comprising C3/C4/C5+ olefins, remains, which is either passed directly to an oligomerisation in step III) or to a separation unit (Va), and C3-C8 hydrocarbons separated there are passed to the oligomerisation in step III), and wherein a remaining recycle gas is returned to step I), wherein, during the absorption in step II), ethylene is returned with the recycle gas, a partially loaded absorbent, also comprising C3/C4/C5+ olefins, remains, which is either passed directly to an oligomerisation in step III) or to a separation unit (Va), and C3-C8 hydrocarbons separated there are passed to the oligomerisation in step III), and wherein a remaining recycle gas is returned to step I), wherein, during the absorption in step II), ethylene is returned with the recycle gas, III) catalytically oligomerising the olefin-containing fraction obtained in step II) to form an oligomerisate, IV) catalytically hydrogenating the oligomerisate, V) separating the unloaded absorbent after step IV) in a separation unit (Vb), wherein the unloaded absorbent is removed therefrom for absorption in step II).