Method of processing petroleum distillates

Details Method of processing petroleum distillates Method of processing petroleum distillates

C - Chemistry, Metallurgy

10

G

C10G 47/10 (2006.01) B01J 23/30 (2006.01) B01J 29/04 (2006.01) B01J 29/06 (2006.01) B01J 29/40 (2006.01) B01J 29/78 (2006.01) B01J 29/83 (2006.01) B01J 29/84 (2006.01) B01J 29/85 (2006.01) B01J 29/87 (2006.01) B01J 29/88 (2006.01) B01J 35/00 (2006.01) C10G 11/05 (2006.01) C10G 35/04 (2006.01) C10G 35/085 (2006.01) C10G 35/095 (2006.01) C10G 47/16 (2006.01) C10G 49/02 (2006.01)

Patent

CA 2444057

The invention relates to petroleum chemistry, in particular to method for producing high-octane gasoline fractions from straight petrol distillates. The inventive method for processing petrol distillates into gasoline fractions having an end boiling point equal to or less than 195 ~C and an octane number equal to or greater than 80 according to a motor method, consists in transforming a hydrocarbon material in a presence of a porous catalyst at a temperature ranging from 200 ~C to 250 ~C, a pressure equal to or less than 2 MPa and mass rates of a hydrocarbon mixture equal to or less than 10 h-1. Ceolite having an alumosilicate composition modified by metals having silicate or alumophosphate compositions is used as a catalyst. The inventive method makes it possible to simplify the process and increase the production of high- octane gasoline fractions using the straight petrol distillates having an extended hydrocarbon composition as a feed stock, said distillates not being pre-fractionated and cleaned from sulphur-containing combinations.

L'invention appartient au domaine de pétrochimie et se rapporte aux procédés de fabrication de fractions d'essence à indice d'octane élevé à partir des distillats directs de pétrole. Elle concerne un procédé de transformation des distillats directs en des fractions d'essence ayant un point d'ébullition final inférieur ou égal à 195 ·C et un indice d'octane moteur égal ou inférieur à 80; ce procédé consiste à transformer les matières premières hydrocarbonées en présence d'un catalyseur poreux à une température 250-500 ·C, une pression inférieure égale à 2 MPa, des débits massiques d'hydrocarbures ne dépassant pas 10 p(-1). En tant que matières premières on utilise des distillats de pétrole ayant un point d'ébullition final de 200-400 ·C, et on utilise en tant que catalyseur une zéolite composée de silicates d'aluminium, de silicates modifiés par métaux ou de phosphates d'aluminium.

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