Low sulfur marine bunker fuels and methods of making same
AssigneeExxonMobil Research and Engineering Company
InventorsChristopher E. Robinson, Sara Dawe, Erik Karlsson, Hédi Grati
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Abstract
This invention relates to low sulfur marine bunker fuel compositions and methods of making the same. The invention also relates to an uncracked, hydrotreated vacuum resid for use in making the low sulfur marine bunker fuel composition. Contrary to conventional marine/bunker fuel compositions, the low sulfur marine/bunker fuel composition uses mostly uncracked components, including a (cat feed) hydrotreated vacuum resid. The low sulfur marine/bunker fuel composition can also have reduced contents of residual components.
Claims32
A low sulfur bunker fuel composition comprising:
- about 50 vol % to about 100 vol % of an uncracked, hydrotreated vacuum resid having at most about 1500 wppm sulfur and a kinematic viscosity of at least about 350 cSt at 50° C.;
- up to about 40 vol % of a first diesel boiling range hydrocarbon stream;
- and up to about 50 vol % of a second diesel boiling range hydrocarbon stream,
- wherein the first diesel boiling range hydrocarbon stream has from about 15 to about 30 wppm sulfur, and the second diesel boiling range hydrocarbon stream has from about 2 to about 10 wppm sulfur, and
- wherein the fuel composition has one or more properties selected from the group consisting of:
- (1) a kinematic viscosity of about 20 cSt to about 350 cSt at 50° C.;
- (2) a density of about 800 kg/m3 to 1000 kg/m3 at 15° C.;
- (3) and a pour point of 25° C. to 35° C.
An uncracked hydrotreated vacuum resid comprising a T50 of at least 600° C. and no more than about 1500 wppm sulfur.
Dependencies are inferred from the claim text.