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D‐Velpac® Evaporator

D‐Velpac® Evaporator

D‐Velpac® Evaporator

Product catalog summary
Overview
LCI Corporation offers the D-Velpac® Evaporator, a pilot-scale thin-film evaporator system designed for development and testing purposes. It features a robust stainless steel construction and is mounted on a free-standing support frame. The system is customizable and can be leased or purchased.

Specifications
  • Feed Rate: 25-250 lb/hr (11-113 kg/hr)
  • Evaporator Area: 1.4 ft²
  • Materials of Construction: 316SS
  • Design Pressure/Temperature: Process: FV to 50 psig @ 650°F; Jacket: 200 psig @ 394°F/100 psig @ 650°F
  • Viscosity: 50,000 cP max.

Key Features
  • Fixed clearance rotor with optional wiper blade
  • Variable rotor speed with step-down sheaves
  • Quick disassembly for cleaning and inspection
  • Counter-current vapor-liquid flow operation
  • Explosion-proof motor

Customization Options
The system can be upgraded with additional components such as concentrate and distillate tanks, sight glasses, process valves, local instrumentation, and a vacuum pump.

Applications
  • Concentration of aqueous or organic solutions
  • Dehydration/devolatilization of organics
  • Distillation of organics
  • Stripping VOCs, monomers, residual reactants
  • Column reboiling
  • Solvent reclaiming
  • Deodorization
  • Reaction of heat-sensitive, viscous, and fouling materials

Process Flow
The feed material is metered into the evaporator and distributed onto the thermal wall. The rotor maintains a turbulent thin liquid film, facilitating rapid evaporation. Vapor exits through the top vapor pipe and is condensed in the surface condenser. The concentrate exits through the bottom cone into a batch receiver. Capacity can be adjusted by changing process conditions such as feed rate and internal pressure.

Conclusion
The D-Velpac® Evaporator is ideal for R&D and pilot-scale trials, allowing for process validation and scale-up to production-scale evaporators.
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Catalog excerpts

D‐Velpac® Evaporator-1

Your ideal development tool! LCI's D‐Velpac® evaporator system includes a pilot‐ scale thin‐film evaporator with packaged components mounted on a free‐standing support frame. • • • • • • • Sturdy, stainless steel construction Fixed clearance rotor (wiper blade option available upon request) Step‐down sheaves for variable rotor speed Quick disassembly/assembly for ease in cleaning and inspection Counter‐current vapor‐liquid flow operation 150# ANSI Flanges for all process connections Explosion‐proof motor Customize your solution! In addition to the thin film evaporator, the basic D‐ Velpac® system includes a rotor drive, vapor pipe/condenser bonnet, and condenser. Upgrades are also available to add concentrate and distillate tanks, sight glasses, process valves, local instrumentation, and a vacuum pump as needed. Lease or purchase today! LCI's D‐Velpac® system provides an inexpensive means to evaluate thin film evaporation on pilot‐ scale quantities of material for your development or existing products within your own facility. Perfect for Scale‐up! Process data collected from the D‐Velpac® can be used to scale‐up to production‐scale thin‐film evaporators in your existing plant or for new capital project. Samples taken during processing on the D‐ Velpac® can be analyzed and used to validate the process. Pilot‐scale trials enable you to fine‐tune your evaporation/concentration process with minimal product loss and downtime.

 Open the catalog to page 1
D‐Velpac® Evaporator-2

D‐Velpac® Thin‐film Evaporator How it works… The feed material is metered into the thin‐film evaporator at a steadily controlled rate by a feed system suitable for the particular feed material. Upon entering the evaporator, the feed is immediately distributed onto the thermal wall by the feed distribution ring. The descending product is maintained in a turbulent, thin liquid film by rotor action. Under these very favorable heat and mass transfer conditions, rapid evaporation occurs. Vapor travels counter‐current to the liquid flow through the open vapor channels of the rotor and exits at the top vapor pipe. Vapor is ...

 Open the catalog to page 2
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