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Dry-Milling Facility
Hammer
mills
Yeast Propagation
Tank(2)
Steam Jet
Cook Tube
Slurry
Tank
Flash Tank
Liquefaction
tank
Fermentation
Tank(4)
Plate & Frame HX
Beer
Well
Degasser
Stripper
Column
Centrifuges
Rectifier
Column
CWR
Stripper Column
Reboiler
To recycle
water tank
Rectifier
Thermo siphon
Reboiler
4 Bottle
molecules
sieve system
Thin
Stillage
Tank
200 Proof Product
To dryers or
wet feed
To syrup
tank
Byproduct Alternative Uses
To Cooker
Stripper
Column
Thin Stillage
Beer Bottom
(Whole Stillage)
Evaporator
Syrup
Centrifuge
Wet Distillers
Grain (WDG)
Dried Distillers
Grain with
Solubles (DDGS)
Dryer
Alternative Uses
Fiber
Separation
Pretreatment
Proteins
Soluble Fiber
Pure cellulsic
material
Animal supplement
Industrial polymers
Human dietary food
Industrial polymers
Ethanol
production
Oil
Extraction
Protein
Extraction
Oil
Biodiesel
Lignin
Oil Extraction
Beer Bottom
Blender or Grinder
Mixing
Centrifuge
Solvent (Hexane)
Top Liquid Phase (Solvent / Oil)
Solvent Evaporation
Substrates for
Protein Extraction
Oil
Oil Extraction - Composition
Hexane
(Hexane : Beer Bottom = 3 : 10)
Beer Bottom (BB)
Moisture : 84.14 %
Oil : 11.35 %
Protein : 24.74 %
Lignin : 7.32 %
Starch : 13.01 %
Cellulose : 14.60 %
Hemicellulose : 24.84 %
Other : 4.14 %
Oil Extraction
Oil
Defatted BB
Moisture : 85.74 %
Protein : 27.91 %
Lignin : 8.26 %
Starch : 14.68 %
Cellulose : 16.47 %
Hemicellulose : 28.02 %
Other : 4.67 %
Protein Extraction : Scheme I
Defatted BB
Centrifuge
Albumin
Isolation
Liquid
Albumin
Salt (NaCl) Solution
Solid
Mixing
Aqueous Alcohol
(Ethanol)
Centrifuge
Liquid
Globulin
Isolation
Globulin
Solid
Centrifuge
Mixing
Liquid
Prolamin
Isolation
Prolamin
Liquid
Glutelin
Isolation
Glutelin
Solid
Alkali solution
(NaOH)
Mixing
Centrifuge
Solid
Substrates for
Fiber Extraction
Protein Extraction : Scheme II
Defatted BB
Protein solubilization
Centrifuge
Ethanol
NaOH
pH control
Liquid
Solid
Protein Isolation
Centrifuge
Substrates for
Fiber Extraction
Protein
Fiber Separation
Substrate from
protein extraction
Treatment
(Acid or alkali)
Ethanol
Liquid
Centrifuge
Liquid
Fiber Isolation
(Precipitation)
Solid
Centrifuge
Insoluble Fiber
for Pretreatment
Solid
Soluble Fiber
Pretreatment & Lignin Separation
Substrates
(Insoluble Fiber)
Acid
Dilute-Acid
Pretreatment
pH control
Centrifuge
Lignin
Isolation
Centrifuge
Liquid
Solid
Pure cellulosic material
for enzymatic hydrolysis
Solid
Lignin