Process for the preparation of linear alpha-olefins from...

Details Process for the preparation of linear alpha-olefins from... Process for the preparation of linear alpha-olefins from...

C - Chemistry, Metallurgy

07

C

C07C 1/04 (2006.01) C07C 11/02 (2006.01)

Patent

CA 2507722

Linear alpha olefins having from four to twenty carbon atoms and low amounts of oxygenates are synthesized, by producing a synthesis gas containing H2 and CO from natural gas and passing it over a non-shifting cobalt catalyst at reaction conditions of temperature, % CO conversion, and gas feed H2:CO mole ratio and water vapor pressure, effective for the mathematical expression 200 - 0.6T + 0.03PH2O - 0.6XCO - 8(H2:CO) to have a numerical value greater than or equal to 50. This process can be integrated into a conventional Fischer- Tropsch hydrocarbon synthesis process producing fuels and lubricant oils.

L'invention concerne la synthèse d'oléfines alpha linéaires possédant 4 à 20 atomes de carbone et de faibles quantités de composés oxygénés, par production d'un gaz de synthèse contenant H¿2? and CO à partir d'un gaz naturel et en le passant dans un catalyseur de cobalt non suractivé dans des conditions de réaction de température, par conversion de CO %, par alimentation en gaz selon un rapport molaire de H¿2?:CO et de pression de vapeur d'eau, permettant à l'expression mathématique 200 - 0.6T + 0.03P<SB>H2O</SB> - 0.6X<SB>CO </SB>- 8(H¿2?:CO) d'avoir une valeur numérique supérieure ou égale à 50. Ce procédé peut faire partie d'un procédé de synthèse d'hydrocarbures Fischer-Tropsch conventionnel afin de produire des carburants et des huiles lubrifiantes.

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