IGPC Ethanol Inc.

IGPC Ethanol Inc.
Applying the biorefinery concept to a
first generation corn to ethanol plant
Rachel Murdy, PhD
IGPC Ethanol Facility
• Located in the Town of Aylmer in Elgin County (ON)
• First generation corn to ethanol plant
• Production rate of 200M litres of undenatured ethanol per year,
and 170k tonnes of distillers grains
– Rate increase of over 15% with the adoption of ICM’s Fiber
Separation Technology™
IGPC Timeline
• Plant commissioning in September 2008
– Preparation for operating grant expiration 2016/17
– Capital projects completed
• Oil extraction, Selective Milling, Fiber Separation, Steam
Turbine, Cogeneration
Typical Ethanol Plants
Corn Oil
Chemistry Optimization
• Corn
– Varieties dedicated to high starch content
– Farming practices (20% increase in yield in last 15 years)
• Enzyme technology
– Improvement in alpha-amylases offers functionality over
wider pH range – eliminates need for ammonia
– New glucoamylases offer higher starch conversion efficiency
with improved ethanol yields
• Chemicals
– Demulsifiers improve oil separation from Condensed
Distillers Solubles (CDS)
Process Improvements
ICM’s AOS™ System for corn oil extraction
• Removes 4,000 MT corn oil from CDS using a Flottweg
Tricanter®
Stillage from
Evaporator
Additive
Centrifuge Feed Tank
TRICANTER
Solids
Water (heavy)
ASPR Tank
(solids tank)
Oil (light)
Next Evap
Oil Tank
Process Improvements
ICM’s FST™ System for fibre separation
• Removes the fibre from the mash ahead of fermentation
• The starch is cleaned from the fibre using countercurrent washing and mechanical separation
• Clean fibre is combined with wetcake to produce DGs
FST – Wash and S/L Separation
• Starch is progressively washed off the fibre through
3 washing and solid/liquid separation steps
• Liquid stream is recycled through system for
washing, and eventually sent to fermentation
Dewatering Step
• Clean fibre goes to Rotary Press (Fournier) for final
dewatering to 35-40% solids
• Fibre is sent to Centrifuge Conveyor, and to
wetpad for WDGS or dryers for DDGS
FST™ Benefits
• > 15% increase in ethanol
production annually
• Greater corn oil extraction
• Energy benefits
• Co-Product Diversification
– Separation of the fibre allows
production of higher protein
distillers grains
Power Generation
• Steam Turbine Generator
– 800 kW/h power from internally generated steam
• Internal Combustion Engine
– Up to 3 MW/h power from natural gas
Summary
Utilities
Corn
Core Ethanol Platform
FST
CO2
Corn Oil
High Energy
Fibre
Biodiesel
Feed
HiPro DGs
DGs
Ethanol
IGPC Ethanol Inc.
Thank You