HESC™ System Performance and Technical Specifications

The High Efficiency Stillage Concentration system uses mechanical vapor recompression (MVR) evaporation to remove water from stillage utilizing HPD's enhanced forced circulation technology (patent pending) to increase heat transfer rates and minimize fouling.

 

The table below describes the performance and technical specifications of the system:

Feed stillage flow rate:*

62,500 lb/hr (113 gpm)

Feed stillage concentration:

30% total solids

Feed stillage temperature:

180° F

Nominal evaporation capacity:

25,000 lb/hr

Evaporation pressure:

8.0 psia

Evaporation temperature:

183° F

Product stillage flow rate:

37,600 lb/hr (63 gpm)

Product stillage concentration:

50% total solids

Product stillage temperature:

192° F

Distillate production rate (less vent) :

24,300 lb/hr (49 gpm)

Distillate temperature:

183° F

Medium voltage (compressor):

4160V/60Hz/3-phase

Low voltage:

460V/60Hz/3-phase

Single phase:

115V/60Hz/1-phase

Rated/connected power:

1,128 HP (746kW)

Power consumption:

1,000 HP (746 kW)

Cooling water requirement:

25 gpm

Startup steam demand (30 psig, saturated):

3,000 lb/hr

Clean domestic water requirement (pump seals):

10 gpm

*Actual flow rates may vary in accordance with the plant's operation