Fuel oil composition

A marine fuel oil composition, said marine fuel oil composition comprising an acid number of less than about 2.5 mg KOH/g, a flash point temperature greater than about 140° F., and a T5 temperature of at least (−21.6×(wt % oxygen in said marine fuel oil composition)+432)° F. when said marine fuel oil composition comprises an oxygen concentration of greater than about 4.44 wt % and the T5 temperature is at least about 337° F. when said marine fuel oil composition comprises an oxygen concentration of no more than about 4.44 wt %.

A process for producing marine fuel oil, comprising:

• reacting a bio-oil stream with hydrogen in the presence of a catalyst in a reactor to produce an upgraded bio-oil stream;
• and
• separating a marine fuel oil stream from said upgraded bio-oil stream, said marine fuel oil comprising an acid number of less than about 2.5 mg KOH/g and a flash point temperature greater than about 140° F.

A marine fuel oil composition having a density of no more than about 1.01 grams per cm3 at 15° C., a flashpoint of at least about 60° C. and a carbon mole % of a hydroxyl, an ether, a sugar, or an alcohol in said marine fuel oil composition is greater than about 0.2 mole % of a total carbon, the marine fuel oil composition is produced by:

• blending a bio-derived marine fuel oil blend stock comprising an oxygen content of at least about 2 wt % and at least one phenolic compound of more than about 0.0010 moles/g with a petroleum-derived marine fuel oil blend stock having a total acid number less than about 2.5 mg KOH/g.