Process for reduction of asphaltenes from marine fuels
AssigneeBASF SE
InventorsJochen Wagner, Silvia Hoffmann, Ingo Gottschling, Markus Hansch, Timo Baumgaertner
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Abstract
A process dissolves or disperses asphaltenes from marine fuels by using at least one quaternary ammonium compound. A weight ratio of saturates to asphaltenes in the marine fuel is at least 4.0. A marine fuel is produced that includes saturates, aromatics, and asphaltenes in addition to at least one quaternary ammonium compound. Another process reduces or prevents fouling caused by asphaltenes in a marine fuel.
Claims20
A process, comprising:
- dissolving or dispersing asphaltenes in a marine fuel by adding at least one quaternary ammonium compound, the marine fuel comprising
- 5 to 70 wt % saturates (determined according to SARA analysis using TLC-FID, IP 469), 10 to 85 wt % aromatics (determined according to SARA analysis using TLC-FID, IP 469), and
- 1 to 30 wt % asphaltenes (determined according to ASTM D3279),
- with the proviso that a sum of the saturates, the aromatics, and the asphaltenes is less than 100 wt %,
- wherein a weight ratio of the saturates to the asphaltenes is at least 4.0.
A marine fuel composition, comprising:
- 5 to 70 wt % saturates (determined according to SARA analysis using TLC-FID, IP 469), 10 to 85 wt % aromatics (determined according to SARA analysis using TLC-FID, IP 469),
- 1 to 30 wt % asphaltenes (determined according to ASTM D3279), and
- 50 to 2000 ppm by weight of at least one quaternary ammonium compound,
- wherein
- a weight ratio of the saturates to the asphaltenes is at least 4.0.
A process for reducing or preventing fouling caused by asphaltenes in a marine fuel, the marine fuel comprising:
- 5 to 70 wt % saturates (determined according to SARA analysis using TLC-FID, IP 469),
- 10 to 85 wt % aromatics (determined according to SARA analysis using TLC-FID, IP 469),
- 1 to 30 wt % asphaltenes (determined according to ASTM D3279), and
- wherein
- a weight ratio of the saturates to the asphaltenes is at least 4.0,
- wherein the process comprises
- adding 50 to 2000 ppm by weight of at least one quaternary ammonium compound to the said marine fuel.
Dependencies are inferred from the claim text.