_1 Dedini Field Testing Program Phase 1: Demonstration Unit (Start-up Sept/2008) 5 m³/day at Cosan plant in Sao Paulo State, Brazil  Two stage membrane module system  Vapor feed is a split stream of rectification column  Feed total pressure: kPa  Temperature: 105 ºC  99.5% fuel grade product.

_2 Rack and Module Assembly  2, 6, 12 et 24 modules per rack  Very flexible (in/out)  Compact design to minimize interconnection costs  Vertical mounting for easy access

_3 Process Energy Impact of Siftek™ Solution

_4 Energy Comparison Siftek TM vs Molecular Sieves Distillation & Molecular Sieves Siftek TM Membranes Steam (kg of steam/hL) ~250~100 Electricity (kWh/hL)615 Energy Savings 50 %

_5 Membranes for Dehydration (MSU Replacement)  Typical feed: wt%  Energy savings approximately 80%  Competitive CAPEX in comparison to MSU

_6 Thermal Energy to Recover Ethanol from Beer (CHEMCAD: two distillation columns + molecular sieve units to 99.3 wt%) Sugar cane Cellulosics Corn

_7 Award