Operational Details of the QUAKER OATS Batch Process

A typical QUAKER OATS batch process as described in chapter 10.1 can be characterized by the following figures [122]  

Rotary digester 12 feet long by 8 feet in diameter (3.65 m long by 2.45 m in diameter). Operating temperature 153 °C corresponding to 5.0853 ATM. 

Specific heats of the charge components Solids .0.370 kcal kg C  

heating of the charge to the reaction temperature generates the condensate quantity AW = (178144.533/501.9) kg = 354.940 kg 

Due to this heat-up condensate , the acid strength after reaching the reaction temperature (if the equipment has the heat capacity zero and if no reactions have taken place) is found to be 4.036 % by weight (as compared to 6.051 % by weight at the start), and in reality the acid strength is even lower because of the sizable heat capacity of the equipment. 

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