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 arrangement did not last long. After breaking his ties with Forstall, Rillieux and two colleagues built what is considered to be the first attempt at a multiple evaporator in 1834 at a plantation owned by Zenon Ramon. Rillieux built another multiple effect evaporator in 1841, but that device also did not succeed.