Pumping wet steam against boiler pressure

What are the problems in pumping wet steam say at 0.2 kg/ sq. cm to boiler pressure? I think that instead of extracting steam to vacuum pressure( negative pressure to condense it & then pumping it Pumps can be designed to suck the wet steam from turbine exhaust & increase its pressure to boiler pressure. This will eliminate vacuum pump & its electrical consumption & thus increase in output.