Hi,
The best to exchange something between to distinct Softwares is to use a
common format of exchange.
In this case, Revit has tools to import .SAT, .DWG, .DGN with ease. So you
can export your blender file into one of these formats and then import them
in to Revit. Meanwhile do remember that Revit works on the concept of
Solids and Voids and not Surfaces (like some modelling software). So if the
file being brought into Revit isn't a Solid Mass, it might fail. Also the
on materials, Revit doesn't support individual materials on surfaces.
Alternatively you can try to take your file into Autodesk Fomit using .OBJ
or .STL. Doing so most of the import related errors would be fixed. Further
FormIT and Revit have a connectivity using which you can easily get the
object into Revit as a Mass Family or families.
BIM Evangelist