TOPSE has expertise in design of Evaporation System that guarantees high process quality, resource conservation and the lowest possible operating costs. Our activities focus on the construction of new plants and the optimization of existing plants and processes. Considering your requirements, we develop a balanced concept that brings investment costs and operating costs into an efficient balance. Evaporation technology is used in any process that requires concentration of a stream by removal of water or other solvent. It is used extensively in processing foods, chemicals, pharmaceuticals, fruit juices, dairy products, paper and pulp, and both malt and grain beverages
Gentle evaporation for heat sensitive products The falling film evaporator is a type of film evaporator which is used most commonly because of its wide operating range. A Falling Film Evaporator (FFE) is a vertical shell & tube type of heat exchanger with vapor liquid separator (VLS) mounted at the bottom. The liquid to be concentrated is fed at the top of heated tubes and distributed in a way that it flows down on the inside surface of the tubes as at thin film. The liquid distributor at the top assures uniform liquid loading of all tubes. As the film gets heated, the vapors generated flow downwards through the tube bundle in co current with the concentrate. The drag of the vapors increases the turbulence & improves heat transfer performance. Subsequently, the vapor phase is separated from the liquid phase in vapor liquid separator (VLS)
Evaporation technology for concentration of moderately heat sensitive liquids The rising/climbing film evaporator is a type of film evaporator which can achieve moderate evaporation, suitable for high viscosity and heat sensitive materials. A Rising Film Evaporator (RFE) is a vertical shell & tube type of heat exchanger with vapor-liquid separator (VLS) mounted at the top. The rising film evaporator operates with the density difference of liquid / liquid-vapor mixture inside the tubes. The liquid to be concentrated is fed at the bottom of heated tube bundle. As the liquid feed receives the heat, the vapors generated lift the liquid upwards. The vapor and balance liquid are separated in vapor-liquid separator (VLS
Forced Circulation Evaporator with axial flow pump experience reduced scaling The forced circulation evaporator is designed for liquids with a high solids content, high viscosity & tendency to foul. A Forced Circulation Evaporator (FCE) has Horizontal or vertical shell-and-tube heat exchanger as the calandria, with flash vessel/separator & a circulation pump for circulation of slurry through the tubes. Use of axial flow pump ensures good velocity in the tubes with minimum power requirement. Forced circulation leads to high tube side velocities (6-18 ft/s), and hence higher heat transfer coefficients and smaller heating surfaces. Boiling in the forced circulation evaporator is suppressed in the heat exchanger by backpressure and takes place when the liquid enters the flash vessel/separator.
Best solution for molecular distillation and purification of extremely heat-sensitive substances and products with very high boiling point, under extreme vacuum conditions. Short path evaporation / distillation is a thermal separation technique that provides minimal pressure drop, permitting deep vacuum operation down to 0.001 mbar.
Best solution for Highly Viscous, Heat sensitive, Fouling & High Boiling point liquids. Due to its inherent design features, ATFD/ATFE is ideal for thermal treatment of solutions that are highly viscous (viscosities of several million centipoise), heat sensitive, fouling & high Boiling products, where reduced operating temperatures and vacuum operating pressures are desirable