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US 12,031,099 B2Granted
Marine fuels
AssigneeInfineum International Limited
InventorsAndrea Pastorino, Charlotte Carlisle, Amy J. Challinor
Life of this patent
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Abstract
An additive composition for a marine fuel or a heating oil comprising a stabilized colloidal dispersion of catalytic metal particles, a neutral or overbased alkaline earth metal detergent and a carrier fluid miscible with a marine fuel oil, a heavy fuel oil, a marine distillate fuel, and/or a residual fuel oil. Also provided are marine fuel and/or heating oil compositions having the additive composition described above and associated methods and uses.
Claims14
An additive composition for a marine fuel or a heating oil comprising:
- a. a colloidal dispersion of catalytic metal particles, the particles comprising:
- i. a metal compound core, the metal compound comprising iron (III) oxide and/or iron (II,III) oxide;
- and
- ii. a polyalkenyl-substituted carboxylic acid or anhydride, or a derivative thereof;
- wherein the polyalkenyl moiety has a number average molecular weight of from 100 to 4000 g/mol, and wherein the polyalkenyl-substituted carboxylic acid or anhydride, or a derivative thereof, is oleic acid, poly(isobutenyl) succinic acid, or poly(isobutenyl) succinic anhydride, or a derivative thereof;
- b. an overbased alkaline earth metal detergent comprising calcium salicylate;and
- c. a carrier fluid miscible with a marine fuel oil, a heavy fuel oil, a marine distillate fuel and/or a residual fuel oil.
4 more elements
Dependencies are inferred from the claim text.