Natural Circulation Evaporators

Natural Circulation Evaporators are very simple and are normally used where the effluent has a high viscosity, higher levels of hardening agents, un-dissolved solids, for products which are affected by their own high temperatures and longer residual times. The operation could be continuous, batch or semi-batch and do not require pumps for recirculation or intermediate product transfer. Natural circulation evaporators are based on the natural circulation of the product caused by the density differences that arise from heating.