Fuel oil compositions with improved cold flow properties

Details Fuel oil compositions with improved cold flow properties Fuel oil compositions with improved cold flow properties

C - Chemistry, Metallurgy

10

L

C10L 1/04 (2006.01) C10L 1/02 (2006.01) C10L 1/08 (2006.01) C10L 1/197 (2006.01)

Patent

CA 2388616

This invention relates to a fuel oil composition having improved cold-flow properties and comprising a cold flow additive and streams from various pipestills of a petroleum crude refinery process: a) a relatively heavy fraction from a catalytically cracked heavy gasoil in turn derived from an atmospheric or vacuum pipestill, said fraction having a boiling range of 170 to 380 ~C in an amount of 3 to 20 % by weight and b) a gasoil product from an atmospheric pipestill, said product having a boiling range of 225 to 360 ~C in an amount of 30-50 % by weight, whereby components (a) and/or (b) is at least partially replaced by at least one relatively light naphtha fraction (c) from the atmospheric or vacuum pipestills, fraction (c) having a boiling range of 130 to 235 ~C and being present in an amount of 3 to 20 % by weight.

La présente invention concerne une composition de produit pétrolier, présentant des propriétés de fluage à froid améliorées et comprenant un additif de fluage à froid et des arrivées provenant de différents fours tubulaires d'un procédé de raffinage de pétrole brut caractérisé en ce que: a) une fraction relativement lourde issue d'un gazole lourd ayant subi un craquage catalytique, provenant d'un four tubulaire atmosphérique ou sous vide, ladite fraction possédant un domaine d'ébullition compris entre 170 ·C et 380 ·C et étant présente à raison de 3 à 20 % en poids; et b) un produit du gazole provenant d'un four tubulaire atmosphérique, ce produit possédant un domaine d'ébullition compris entre 225 ·C et 360 ·C et étant présent à raison de 30 à 50 % en poids, les composants (a) et/ou (b) sont au moins partiellement remplacés par au moins une fraction naphta (c) relativement légère provenant des fours tubulaires atmosphériques ou sous vide, la fraction (c) possédant un domaine d'ébullition compris entre 130 ·C et 235 ·C et étant présente en une quantité comprise entre 3 et 20 % en poids.

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