How It Works:

• Feed enters at bottom of calandria
• Heating medium on shell side provides heat
• Vapor generation pushes liquid upward as a film
• Mixture separates in vapor-liquid separator at top
• Good thermal performance from high vapor velocity
  
  

Features:

✓ No circulation pump needed (thermosiphon action)
✓ Multiple effect arrangements available
✓ Can handle small quantities of suspended particles
✓ Effective for moderately heat-sensitive liquids

Applications:

• Concentration of dilute plant extracts (water or organic solvent)
• Re-boiler to distillation columns
• Pre-concentration before final drying
• Solvent recovery from product or waste streams
  
  

Pilot Plant Available:

Test with your materials before full-scale investment

How It Works:

• Feed enters at top through distributor
• Liquid flows down as thin film on inside tube surface
• Heating medium on shell side provides heat
• Vapor moves co-currently with liquid at tube center
• Vapor drag increases turbulence and heat transfer
• Separation occurs at bottom
  
  

Features:

✓ Gentle evaporation with short residence time
✓ Small hold-up for quick response to changes
✓ Suitable for heat-sensitive products
✓ Multiple effect arrangements available
✓ Circulation pump maintains proper wetting rate

Applications:

• Concentration of heat-sensitive pharmaceutical products
• Solvent recovery from heat-sensitive streams
• Re-boiler to distillation columns
• Pre-concentrator before thin film evaporator
• Dehydration of lubricating oils
  
  

Note: Pilot plant testing available to validate performance

How It Works:

• Axial flow pump with high discharge, low head
• High velocity maintained in heat exchanger tubes
• Hydrostatic head above tube sheet suppresses boiling
• Minimal scaling during evaporation
• Separation occurs in dedicated vapor-liquid separator
  
  

Features:

✓ Can handle slurries with 30-40% suspended solids
✓ High tube velocity with minimum power consumption
✓ Correct separator design ensures clear distillate
✓ Minimized tube scaling
✓ Multiple effect arrangements available

Applications:

• Pre-concentration of effluent streams before drying
• Wastewater concentration (organic and inorganic salts)
• Evaporative crystallization
• Handling of viscous and fouling liquids
  
  

Process Design:

Multiple effect systems designed to reduce steam consumption

How It Works:

• Feed enters tangentially at top
• Rotor blades spread feed evenly into thin film
• Heating medium in jacket evaporates volatiles
• Vapor flows counter-currently and exits through top
• Concentrate exits at bottom
• Entrainment separator ensures clean vapor
  
  

Features:

✓ Residence time of only seconds - ideal for heat-sensitive products
✓ Single pass evaporation without recirculation
✓ Intense agitation prevents scaling
✓ Good turndown capability, low product hold-up
✓ Operating pressure down to 1 mbar(a)
✓ Different rotor designs for various applications

Applications:

• Concentration of bulk drugs, fine chemicals, agrochemicals
• Re-refining of lubricating & transformer oils
• Vacuum distillation of fatty acids, amines, esters
• Concentration of oleo-resins & plant extracts
• Stripping of monomers and silicone oils
• Solvent and product recovery from residues
• Glycerin recovery

Pilot Plant Facility Available

How It Works:

• Feed distributed into thin film on shell inside surface
• Heating medium in jacket evaporates volatiles
• Vapor travels short distance across rotor to internal condenser
• Minimal pressure drop enables ultra-high vacuum
• Distillate and bottoms collected separately
  
  

Rotor Blade Options:

• PTFE or Graphite Wiper Elements
• Metal Wiper Elements
• PTFE or Graphite Rollers
  
  

Features:

✓ Operating pressure as low as 0.001 mbar(a)
✓ Distillation at lower temperature prevents degradation
✓ Very high boiling components can be distilled
✓ Residence time of few seconds
✓ Single pass operation
✓ Good turndown capability
✓ Metal blades at high temperature offer flexibility

Applications:

• High vacuum distillation of bulk drugs
• Natural or synthetic vitamins, esters, epoxy resins
• Fatty acids, glycerides, tocopherols
• Re-refining of lubrication oils
• Purification of natural and synthetic waxes
  
  

Pilot Testing: Validate your process parameters before full scale

System Design:

• 2 to 6 effects in series
• Optional thermo-vapor compressor (TVC)
• Steam economy optimization
• Forward, backward, or mixed feed flow
  
  

Benefits:

✓ Reduces steam consumption by 50-85%
✓ Lower operating costs
✓ Suitable for large evaporation loads
✓ Optimized based on steam and power costs at site

Applications:

• Zero liquid discharge (ZLD) systems
• Wastewater concentration
• Large-scale pharmaceutical production
• Chemical effluent treatment
  
  

Custom Engineering: Each system designed for specific requirements