"The fuel used in ships is waste oil, basically what is left over after the crude oil refining process. It is the same as asphalt and is so thick that when cold it can be walked upon."
Not true. I used to work in the bunker fuel industry, and then at a refinery that produced primarily asphalt. Bunker C, while nasty and thick with a sometimes ambient pour point, isn't nearly as nasty as asphalt. Theres also IFO-380 which is commonly used. Not quite as viscous a Bunker C.
Asphalt has to be kept about 180 deg F in the tank farm if I remember, but it's been many years.
"The fuel used in ships is waste oil, basically what is left over after the crude oil refining process. It is the same as asphalt and is so thick that when cold it can be walked upon."
Not true. I used to work in the bunker fuel industry, and then at a refinery that produced primarily asphalt. Bunker C, while nasty and thick with a sometimes ambient pour point, isn't nearly as nasty as asphalt. Theres also IFO-380 which is commonly used. Not quite as viscous a Bunker C.
Asphalt has to be kept about 180 deg F in the tank farm if I remember, but it's been many years.