WHITEFOX ICE XL
Membrane solution replacing molecular sieves by dehydrating distillates to the final product.
THE CHALLENGE
Molecular Sieve Dehydration is a Pressure Swing Adsorption (PSA) technology commonly used in ethanol production.
- Operation is cyclical with a variety of recycle streams, creating bottlenecks in Distillation, Dehydration & Evaporation (DD&E)
- The conventional MSU dehydration method is energy intensive as 184 – 190 Proof is required as the MSU feed
THE WHITEFOX SOLUTION
Whitefox ICE® XL is a proprietary integrated solution which fully replaces the existing molecular sieves, establishes continuous dehydration and reduces the energy consumption per gallon of ethanol produced.
It does this through:
- Reconfiguration of existing distillation
- Installation of a 100% energy neutral ICE XL system
Reducing energy consumption by up to 50% which is close to 7 carbon intensity (CI) points
- Elimination of 190P condensation and revaporization steps
- Steam reduction in evaporation due to 25% lower water load
Better use of capital employed by avoiding cost associated with broken or cracked MSU
The Benefits
- Reduce steam consumption of DD&E to 8,000 BTU/gal
Stable, continuous operation (no pressure swings)
- Cooling water reduction
- Elimination of molecular sieve dust contamination
- Diversify to lower moisture for export
- Cooling water reduction dust contamination
Reduce natural gas consumption by up to 8,000 BTU/gallon
- Emission saving – Carbon Intensity (CI) point reduction up to 7 points
- Reduction in operational and maintenance cost
Whitefox membrane technology provides the following benefits
Capacity increase up to 25%
Diversify to lower moisture for export
Energy saving up to 50%
Cooling Water reduction up to 15%
Reduction in operational and maintenance cost
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ICE XL
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