Brill and Thurlow: Alcohol from Molasses 



289 



Table XVIII. — Results of fermenting molasses on a large scale with 

 temperature control. 



Fermen- 

 tation. 



Temper- 

 ature. 



Cell 

 count. 



Alcohol, 



by 

 volume. 



Density, 

 degree 

 brix. 



Alcohol. 



Maxi Yield. 



""^i Per cent 

 mum nC .. 

 vield of theo_ 

 ylem - retical. 



Hours. 

 24 

 48 

 72 

 96 

 120 

 136 



°C. 

 30 

 33 

 30 

 31 

 29 

 28 



10.6 

 120.0 

 76.0 

 71.0 

 63.0 

 47.0 



2.98 

 6.91 

 7.01 

 7.25 

 7.16 

 6.92 



•12.2 

 6.4 

 4.2 

 3.9 

 3.8 

 3.8 















7.25 



89.8 











' Original density, 16.5 brix. 



Table XIX. — Data on ferment, results of which are recorded in 

 Table XX. 



Liters. 



Water 12,021 



Molasses 2,181 



Inoculating solution 150 



Total initial volume 14,350 



Total final volume 14,150 



Note. — Sulphuric acid, 2 grams per liter ; ammonium sulphate, 0.4 gram per liter ; initial 

 brix, 16.5. 



Table XX. — Results of second trial of fermenting molasses with temper- 

 ature control. 



Fermen- 

 tation. 



Temper- 

 ature. 



Cell 

 count. 



Alcohol. 



by 

 volume. 



Density. 



Alcohol. 



Maxi- 

 mum 

 yield. 



Yield, 



per cent 

 of theo- 

 retical. 



Hours. 

 16 

 40 



s 



112 



°C. 

 33 

 33 



31.5 

 31 

 30 



35 

 90 

 80 

 76 

 72 





16.3 

 9.7 

 4.9 

 3.8 

 3.7 







3.84 

 6.27 

 6.81 











6.81 



90.7? 







This result is very slightly superior to that of Table XVIII 

 and shows that consistent yields can be procured by exercising 

 the precautions used in these two experiments. 



A control test in an adjoining vat was run to determine the 

 yield under present distillery methods. This vat had no cooling 

 coil, and the ferment was not inoculated. 



