I assume the residue of crude oil distillation is exactly that, everything that's left after the distillation, so tars, asphalt, partially coked hydrocarbons, that kind of stuff.

And I suppose the residual gas is the same, a mixture of various light hydrocarbons. In real life, this stuff is often ...

Hello! I'm a Chemical Engineering Student and I've been playing around with this amazing mod for a while. It's incredible complex and a tough challenge, which I enjoy. Specially the petrochemical part, but there is something that I can't figure out. That is the residue of the crude oil distillation ...