Abstract: A method for distilling a fluid includes moving a fluid to be distilled into a distilling column. A motive fluid is pumped into a liquid-driven gas ejector. Gas from a vapor outlet of the distilling column is discharged into a gas inlet of the ejector. Fluid is conducted from an outlet of the ejector into a heat exchanger. Heat from fluid conducted from the ejector is transferred to at least one of the fluid moved into the distilling column and an interior of the distilling column.

Abstract: A distilling heat pump includes a distilling column, a heat exchanger, a pump and a liquid-driven gas ejector. A liquid inlet of the ejector is in fluid communication with an outlet of the pump. A gas inlet of the ejector is in fluid communication with a vapor outlet of the distilling column. An outlet of the ejector is in fluid communication with a fluid inlet of the heat exchanger. A fluid outlet of the heat exchanger is in fluid communication with an inlet of the pump. The heat exchanger is in thermal communication with at least one of a fluid inlet to the distilling column and an interior of the distilling column.