A method of distillation employing a heat pump using a vapor stream from within the distillation system as a heat source and {HEAD ~ a liquid stream} from within {TAIL ~ the distillation system} as a heat sink 
from within
A method of distillation employing a heat pump using a vapor stream from within the distillation system as a heat source and { HEAD ~ a liquid stream } from within { TAIL ~ the distillation system } as a heat sink
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH