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Processes and Process Engineering 25

Table 1.4 Glucose Production Process Operations

Process Unit Process Conditions Process Operations

Hydrolyzer, R-1 Time -2 h Conversion
Feed - 30 - 40% solids Mixing
Temperature - 80 - 90 °C
pH - 5.5 - 7.0
Hydrolysis -15 -25%
Interchanger, H-1 Energy Transfer

Heater, H-2 Energy Transfer
Centrifuge, PS-1 Solids Removed Phase Separation
0.3 - 0.4 % protein
0.5 - 0.6 % fat

Hydrolyzer, R-2 Time -48- 72 h Conversion
Mixing
Temperature - 55 - 60 °C
pH -4.0-4.5
Dissolved Solids -
97.0 - 98.5 % glucose
Pump, P-1 Material Transfer

Adsorber, CS-1 Component Separation
Tank, S-1 Storage
Pump, P-2 Material Transfer

Evaporators (contains three effects or stages)
st
1 Effect Product - 40 - 58% solids
nd
2 Effect Product - 58 - 70% solids
rd
3 Effect Product - 70 - 78% solids
First Effect
Evaporator, CS-2 Component Separation
Flash Drum, PS-2 Phase Separation
Compressor, C-1 Material Transfer
Pump, P-3 Material Transfer
Adsorber, CS-3 Component Separation
Ion Exchanger, R-3 Conversion
Tank, S-2 Storage

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