Biofuels Production

1
Bio-fuels Production
Biomass
Canola
Biodiesel
Ethanol
2
Cellulosic Ethanol Production
Cellulosic Feedstock
2nd Pretreatment (convert cellulose into
Glucose)
Glucose fermentation
Lignin
1st Pretreatment (convert hemi-cellulose into
xylose and reduce size and open up structure of
cellulose)
Simultaneous saccharification fermentation
Distillation to recover ethanol
Ethanol
Fuel for heat and electricity
Lignin
Fermentation of xylose and other simple sugars
from hemi-cellulose
3
Grain Ethanol ProductionDry Milling Process
Grain
Grain
Fermentation
Fermentation
CO2
Denaturing
Beer
200
190
Ethanol
Distillation
Dehydration
Distillation
Dehydration
Grind
Grind
Proof
Proof
Whole
Stillage
Centrification
Centrification
Wet Grains
Thin
Stillage
Dried
Liquify
Cook
Liquify
Cook
Syrup
Distillers
Dryer
Dryer
Evaporation
Evaporation
Grains
Distillers
Saccharify
Saccharify
Distillers
Solubles
Distillers
Solubles
Grains
w/Solubles
Enzymes
4
Biodiesel Production Process
5
Biodiesel Fuel Characteristics
6
Ethanol Fuel Characteristics
Gasoline
Gasohol
E85
Ethanol
Gasoline
Gasohol
E85
Ethanol
10 Ethanol

85 Ethanol

10 Ethanol

85 Ethanol

E100
E100
90 Gasoline
15 Gasoline
90 Gasoline
15 Gasoline
125,000
120,900
90,000
84,400
BTU

s/Gal
125,000
120,900
90,000
84,400
BTU

s/Gal
87
-
93
92
100
Octane
87
-
93
Octane
98
Number
Number
3.00/gal
2.90/gal
2.16/gal
2.02/gal
Equitable
3.00/gal
2.90/gal
2.16/gal
2.02/gal
Equitable
Value
Value
(BTU)
(BTU)
7
Bio-fuel Information
1. 10-year average ND yields, ND Agricultural
Statistics Service. 2. National Renewable Energy
Laboratory, Bioethanol Multi-Year Technical Plan,
Preliminary Draft (Golden, CO,  July 1999). 3.
Iogen Corporation, Ottowa, CA