Innovations in Continuous Lecithin Drying

Capacity • Up to 1980, most evaporators sold were for Soybean plants processing 500-1200 short tons/day. • This = 225-500 kg/hr dry Gums. • This = 2-6M2 Evaporators

History Capacity • Non-GMO applications use up to 10 M2 Evaporators • Latin American applications use up to 26 M2 Evaporator

Moisture Contents • Wet Gums are normally 30-50% Water. • Dry Gums requirements were <1% prior to 2000. • Current requirements are <0.5% and often <0.2%.

GMO • GMO applications were normal until 2000. • Non-GMO are normally smaller capacities. • Non-GMO applications are often from non-soy oilseeds, such as sunflower. • Special evaporator specifications are required for Sunflower.

Evaporator Orientation • Most are vertical, but some are horizontal. • Vertical-Lowest Heat History • Horizontal-Potentially lower moisture in single stage • Future R&D-Side by side testing.

What is Thin Film Evaporation? • Thin-Film Evaporation separates water from Dry Gums/Oil using: • Indirect heat transfer • Mechanical agitation of a thin product film • Vacuum

What is Thin Film Evaporation? • Short residence time • Open low pressure-drop configuration • Allows continuous, reliable processing of • viscous materials • heat sensitive products without degradation.

Batch-Advantages •Not sensitive to incoming moisture. • Good Color • Low Dry Gum Moistures Possible

Batch-Disadvantages • Long Batch Processing Times • Limited Capacities • High Operator Supervision • Process upsets damage entire batch.

Batch vs. Continuous Continuous-Advantages • High Capacities • Good Color • Low Dry Gum Moistures Possible • Low Operator Supervision • Minimal Off-spec Product w/ Upsets • Lower Peak Utility Usage

Batch vs. Continuous Continuous-Disadvantages • Installed Cost-For low capacities • Sensitive to feed fluctuations (one stage operation

• Dry Gums Moisture-as low as 0.2% • Non-GMO Capable • Acetone Insoluble and Acid # Online Adjustments. • Environmentally Compliant. • High Capacities

Design Basis 69 mt/day dry basis Feed Rate 4423 kg/hr Moisture 35% Temperature 80°C AI 68 AV 20 Oil added to feed Evaporator Bottoms 19 kg/hr

• Feed rate - 4423 kg/hr • Heating Temperature - 162°C • Product Temperature - 110°C • Steam Pressure - 5.5 bar • Vacuum - 50 mmHg absolute • Rotor Speed - 12 m/sec

Water Cleanu

Product Coolers