I suspect a bit of sensationalism as I find it interesting that no photos are included of the other end.
That is what is frustrating to me as well, no photos of the end higher apparently up on the beach.
If it wasn’t 90ft in length, it might have been something from a Container vessel were my first thoughts, but the mounting flanges around what appears to be the bottom of a silo storage type tank tell me that is off thinking.
It appears to be some form of storage tank for apparently either a liquid, or something refined be it a powder, whatever as the portal at the bottom is quite small and apparently concentrated.