Modern factory - oil refinery - power plant 3D model is available on CGTrader for $29.7. Original author: tt741852md. Specs: 629119 polys, 5614944 verts.
OBJ (OBJ, filesize: 555 MB), MAX (Autodesk 3ds Max, filesize: 344 MB), JPG (JPG, filesize: 655 MB), PNG (PNG, filesize: 229 MB), SKP (Sketchup, filesize: 148 MB), BLEND (Blender, filesize: 277 MB), FBX (Autodesk FBX, filesize: 555 MB)