Zen Adsorptions Pvt. Ltd.

We are engaged in offering Falling Film Evaporator for API intermediate to our clients. Our range of all products is widely appreciated by our clients.

An Agitated Thin Film Dryer (ATFD) is widely used in industries for efficient drying of solids and evaporating liquids, especially when dealing with heat-sensitive or viscous materials. The design and operation of ATFD allow for gentle yet effective drying, ideal for products that are prone to degradation under harsh conditions.

• The ATFD consists of a centrally positioned high-speed rotor with blades that fit together precisely inside a jacketed heating casing.
  
  

• The feed material (solution, slurry, or wet cake) enters through a distributor and spreads into a thin film on the heated wall of the casing.
  
  

• As the rotor revolves, it vigorously agitates the film, ensuring uniform distribution and efficient contact with the heated surface.
  
  

• The material transitions through different stages—slurry → paste → wet powder → dry powder—before being discharged as a free-flowing amorphous or crystalline dry powder.
  
  

• Continuous scraping by the rotor renews the heating surface, promoting excellent heat transfer and preventing fouling.
  
  

• Accepts feed as slurry or wet cake: Flexible feedstock handling.
  
  

• Indirect heating: Suitable for oxygen-sensitive and thermally sensitive products.
  
  

• Low residence time: Ideal for heat-sensitive materials, minimizing degradation.
  
  

• Uniform powder consistency: Ensures high product quality.
  
  

• Wide operating pressure range, including vacuum operation down to 1 mbar: Facilitates drying of sensitive materials at lower temperatures.
  
  

1. Pharmaceutical Industry:
   
   

   • Drying of bulk drugs, intermediates, and pharmaceutical formulations.
     
     

2. Chemical Industry:
   
   

   • Handling organic and inorganic salt slurries, pigments, and dyes.
     
     

3. Food Industry:
   
   

   • Processing of flavors, nutrients, cocoa, sweeteners, etc.
     
     

4. Catalysts and Specialty Materials:
   
   

   • Drying of materials like catalysts, carbon, limestone, and other specialty powders.
     
     

• Capacity range: 0.05 sq.m to 30 sq.m surface area.
  
  

• Operating temperature: 30°C to 300°C.
  
  

• Operating pressure: From full vacuum up to 2 bar (g).
  
  

Additional Information:

• Delivery Time: 8 weeks

An Agitated Thin Film Dryer (ATFD) is widely used in industries for efficient drying of solids and evaporating liquids, especially when dealing with heat-sensitive or viscous materials. The design and operation of ATFD allow for gentle yet effective drying, ideal for products that are prone to degradation under harsh conditions.

• The ATFD consists of a centrally positioned high-speed rotor with blades that fit together precisely inside a jacketed heating casing.
  
  

• The feed material (solution, slurry, or wet cake) enters through a distributor and spreads into a thin film on the heated wall of the casing.
  
  

• As the rotor revolves, it vigorously agitates the film, ensuring uniform distribution and efficient contact with the heated surface.
  
  

• The material transitions through different stages—slurry → paste → wet powder → dry powder—before being discharged as a free-flowing amorphous or crystalline dry powder.
  
  

• Continuous scraping by the rotor renews the heating surface, promoting excellent heat transfer and preventing fouling.
  
  

• Accepts feed as slurry or wet cake: Flexible feedstock handling.
  
  

• Indirect heating: Suitable for oxygen-sensitive and thermally sensitive products.
  
  

• Low residence time: Ideal for heat-sensitive materials, minimizing degradation.
  
  

• Uniform powder consistency: Ensures high product quality.
  
  

• Wide operating pressure range, including vacuum operation down to 1 mbar: Facilitates drying of sensitive materials at lower temperatures.
  
  

1. Pharmaceutical Industry:
   
   

   • Drying of bulk drugs, intermediates, and pharmaceutical formulations.
     
     

2. Chemical Industry:
   
   

   • Handling organic and inorganic salt slurries, pigments, and dyes.
     
     

3. Food Industry:
   
   

   • Processing of flavors, nutrients, cocoa, sweeteners, etc.
     
     

4. Catalysts and Specialty Materials:
   
   

   • Drying of materials like catalysts, carbon, limestone, and other specialty powders.
     
     

• Capacity range: 0.05 sq.m to 30 sq.m surface area.
  
  

• Operating temperature: 30°C to 300°C.
  
  

• Operating pressure: From full vacuum up to 2 bar (g).
  
  

Additional Information:

• Delivery Time: 8 weeks

An Agitated Thin Film Evaporator (ATFE), commonly referred to as a Wiped Film Evaporator (WFE), is a highly efficient rotary evaporation system designed for the controlled evaporation, concentration, or distillation of liquids. It is especially suitable for heat-sensitive, viscous, or fouling-prone materials.

• The core structure is a jacketed shell precisely machined for optimal heat transfer.
  
  

• The high-speed rotor with blades operates with minimal clearance from the shell.
  
  

• The liquid feed enters through a feed distributor and spreads into a thin film along the heated wall.
  
  

• The rotor continuously agitates the liquid film, promoting even distribution and maximizing contact with the heated surface.
  
  

• An integrally attached entrainment separator cleans the vapors, which flow counter-current to the liquid, improving separation efficiency and vapor quality.
  
  

• The process operates in a once-through mode without recirculation, reducing product degradation and minimizing hold-up.
  
  

1. Thin Film Formation:
   
   

   • Maximizes surface area for heat transfer, ensuring uniform heating.
     
     

2. Intense Agitation:
   
   

   • Prevents fouling, scaling, and local overheating.
     
     

   • Maintains turbulent flow even for highly viscous liquids.
     
     

   • Enhances heat transfer efficiency.
     
     

3. Short Residence Time:
   
   

   • The liquid spends only a few seconds in the heated zone, minimizing thermal degradation.
     
     

4. Low Product Hold-Up:
   
   

   • Reduces material loss and improves process control.
     
     

1. Pharmaceutical Industry:
   
   

   • Vacuum distillation of bulk drugs, intermediates, and fine chemicals.
     
     

2. Chemical Industry:
   
   

   • Distillation of glycols, used lubricating oils, fatty acids, and their derivatives.
     
     

   • Processing of rubber chemicals, amines, and esters.
     
     

3. Solvent Recovery:
   
   

   • Recovery of contaminated solvents and products from residues.
     
     

• Capacity range: 0.1 sq.m to 30 sq.m surface area.
  
  

• Operating temperature: 30°C to 300°C.
  
  

• Operating pressure: From full vacuum to 2 bar (g).
  
  

• Construction materials (MOC): SS304, SS316, Hastelloy for chemical compatibility.

Additional Information:

• Delivery Time: 8 weeks

Our Pilot-Scale Rising Film Evaporator (RFE) is specifically designed for concentration of heat-sensitive, low-viscosity liquids under controlled conditions. This equipment is ideal for process development, R&D trials, and small-scale production in industries such as pharmaceuticals, chemicals, food & beverage, and biotechnology.

• Vertical tubular evaporator design ensures efficient heat transfer

• Rising film mechanism allows thin film formation for gentle evaporation

• Steam or hot water jacketed heat exchanger for uniform heating

• Vapor-liquid separator at the top for efficient phase separation

• Feed and product tanks with integrated flow and level controls

• Skid-mounted compact structure for easy installation and mobility

• Customizable configurations for multi-effect or solvent recovery processes

• Automation-ready with temperature, pressure, and flow control instrumentation

• Solvent recovery

• Concentration of herbal extracts and APIs

• Wastewater minimization

• Evaporation of thermally sensitive solutions

The pilot-scale RFE is engineered for scalability, making it a valuable tool for bridging the gap between lab and full-scale industrial operations. We also offer trial services, process optimization support, and custom fabrication based on client-specific requirements.

Additional Information:

• Delivery Time: 8 Weeks