Oil composition
AssigneeInfineum International Limited
InventorsRinaldo Caprotti, Christophe Ledeore
Life of this patent
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Abstract
An improved fuel oil composition comprises fuel oil and specific acylated polyalkylene polyamine.
Claims10
A fuel oil composition comprising a fuel oil and a minor proportion of an additive, wherein the additive comprises the product obtainable by the reaction between;
- (i) a hydrocarbyl-substituted succinic acylating agent, wherein the hydrocarbyl substituent has a number-average molecular weight (Mn) of 250 to 2500, and
- (ii) one or more polyalkylene polyamines,
- characterised in that the polyamine component (ii) contains greater than 35% by weight of polyamines having more than six nitrogen atoms per molecule, based on the total weight of polyamines, and in that (i) and (ii) are reacted in a molar ratio in the range of 1.4:1 to 1:1 ((i):(ii))
The composition of any preceding claim wherein the polyamine component (ii) is a mixture comprising at least 45% by weight of polyamines having seven nitrogen atoms per molecule, based on the total weight of polyamines.
The composition of any preceding claim, wherein the average number of nitrogen atoms per molecule of the polyamine component (ii) is in the range of 6.5 to 8.5 nitrogens.
The composition of any preceding claim, wherein the molar ratio of (i):(ii) is in the range of 1.3:1 to 1.15:1.
The composition of any preceding claim, wherein the fuel oil is a middle distillate fuel oil.
Dependencies are inferred from the claim text.