Kettle Reboiler Heat Exchanger

Kettle type reboilers are a type of shell-and-tube heat exchangers. A tube bundle is a number of pipes containing a heating medium, commonly saturated steam, that provides heat to the fluid. Baffles are located along the length of the reboiler to help facilitate movement and heat transfer in the reboiler.A kettle reboiler is designed to allow a heating fluid to pass through tubes that are covered in the liquid you want to be distilled. As the liquid heats up and boils, it is sent to the distillation column and condensed by cooling liquid.For large size plants with a liquid hot source, evaporators are usually arranged as a kettle reboiler (see Fig. 3.3). These components are formed by a two-pass tube bundle where the hot fluid flows, surrounded by a plenum of liquid working fluid in equilibrium with its own vapor.