Method for producing a base for fuels using an ethylene feedstock performing at least one oligomerisation step in the presence of a homogeneous catalytic system

• Main Authors: Touchais, Natacha, Magna, Lionel, Popelin, Cedrik, Proriol, David, Olivier-Bourbigou, Hélène, Harry, Stéphane, Berard, Sandrine, Saussine, Lucien
• Format: Patent
• Language: English; French; German
• Published: 13.03.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

Producing bases from a C2 ethylene charge, comprises: (a) first step of oligomerization of the charge into at least one hydrocarbon effluent comprising a mixture of 4-30C olefins in the presence of a homogeneous catalyst system comprising at least one metal precursor formed by e.g. titanium; and (b) second step of oligomerization of at least a portion of the effluent from step (a), into at least one hydrocarbon effluent comprising a mixture of 4-30C olefins in the presence of a homogeneous catalyst system identical or different from that used in step (a). Producing bases from a C2 ethylene charge, comprises: (a) first step of oligomerization of the charge into at least one hydrocarbon effluent comprising a mixture of olefins having a carbon number predominantly 4-30, where the mixture of olefins comprises 10-24C cut having an average linearity of greater than 60%, in the presence of a homogeneous catalyst system comprising at least one metal precursor formed by titanium, zirconium, hafnium, nickel and/or iron; and (b) second step of oligomerization of at least a portion of the effluent from step (a), to at least one hydrocarbon effluent comprising a mixture of 4-30C olefins, where the olefin mixture comprises 10-24C cut having an average linearity of less than 50%, in the presence of a homogeneous catalyst system identical or different from that used in step (a).