Marine Gasoil is similar to diesel fuel but with a higher density. Typically, this type of oil is used in ships’ engines and small medium-to-high-speed auxiliary units. Its low-viscosity properties make it easy to pump into an engine. Another advantage of marine gasoil is that it is cheaper than full hydrocarbon fuel. But before you decide to switch to this type of oil, make sure you are aware of marine lubricant equivalent tables.
HFO is cheaper than full hydrocarbon fuel:
Heavy fuel oil, or HFO, is a by-product of the refinery process that produces a low-priced, high-energy fuel. While full hydrocarbon fuels are more expensive, they’re not the only difference between the two. HFO has several advantages, including cost and environmental benefits. A typical HFO blend contains 25 to 40 percent of the oil content of petroleum crude. Its viscosity is 300 x 10-6 m2/s at 50-100 degC. It has a higher heating value of 43 MJ/kg, and its flash point ranges from 60 to 80 degrees Celsius.
Marine Gasoil is similar to diesel fuel but has a higher density:
Like diesel fuel, marine fuel oils are distillates. In distillation, a fraction of crude oil is evaporated and condensed into liquid fractions. A marine gasoil is a mixture of these distillates. It is similar to diesel fuel but has a higher density and does not need to be heated. These characteristics allow it to be used in engines for both small and large vessels.
Methanol is a marine fuel oil:
Methanol is the simplest alcohol with a molecular structure of four hydrogen atoms, one oxygen atom, and one carbon atom. It burns at room temperature in an invisible blue smokeless flame. The sulphur content in marine fuels will be lowered from 1, 0 to 0.1 % starting in 2015. Methanol will have to be used in higher proportions in the future, and vessels that use it now will need to change their fuels or install a scrubber unit to reduce the sulphur content in the exhaust gas.
Residual oil breaks up into patches or tarballs:
As crude oil floats in the sea, it undergoes many chemical and physical processes. The physical processes are evaporation, spreading, dispersion, sinking, and bioavailability. These chemical and physical processes can break up crude oil into patches and tarballs. As a result, the oil is transported on ships and shorelines. The oil is deposited in tarballs, which are not only a hazard to marine life, but also pose an environmental threat.
