In cosmetics, the most common use of acetone is in nail polish remover. Acetone is a colorless, flammable liquid that evaporates easily. It is an organic compound because carbon atoms are present in acetone's chemical formula, which is (CH3)2O.
Swenson thermal vapor recompression (TVR) evaporators use a thermocompressor to reduce the steam required per pound of evaporation. To reduce energy consumption, water vapor from an evaporator is entrained and compressed with high pressure steam in a thermocompressor so it can be condensed in the evaporator heat exchanger. The resultant pressure is intermediate to that of the motive steam and the water vapor.
That evaporator is considered the first successful, commercial-scale, multiple effect evaporator put into practical use. It was operating by 1845. A Successful Invention. In 1843, while overseeing the building of the device for Packwood, Rillieux received a patent, U.S. 3,237 (1843), for a double-effect evaporator.