Glucose Evaporation & Extraction

Key words: Glucose production, multi effect falling film evaporator

System inlet mass: 17000kg/h, evaporation: 12000kg/h, discharge: 5000kg/h

Inlet concentration: 26%, outlet concentration: 86%

Glucose Evaporation & Extraction Process:

Glucose evaporation with one set 4 effect direct flow falling film evaporation system.

After measured by electromagnetic flow meter, 26% glucose solution will reach the boiling temperature after heated by the 1st and 2nd stage heat exchanger. The glucose solution will be pumped into first effect heat exchanger and be concentrated to 31%.

Next, the glucose solution will be pumped into second effect heat exchanger, concentrating to 38%.

Next, the glucose solution will be pumped into third effect heat exchanger, concentrating to 52.5%.

Next, the glucose solution will be pumped into fourth effect heat exchanger, concentrating to 86%.Finally, the final glucose will be discharged out of evaporation system.

Utilities and Energy Consumption Analysis

Energy consumption is decide by elevation of material boiling point, energy consumption equipment include steam, vacuum pump and circulation pump etc.

Four effect falling film evaporator (direct flow)
S/N	Purpose	Qty	Operation cost(RMB)
Electricity (KW/h)	Pumping	64.5	45.15
fresh steam（ton/h）	Evaporation	3.6	720
Cooling water (ton/h)	Seal cooling	8	4
	Secondary steam cooling	245	122.5
operation cost Per hour(RMB)	891.65
operation cost Per Ton (RMB)	74.3
operation cost Per day(RMB)	21399.6
operation cost Per year (RMB)	7133200
Remark:	Electricity price: 0. 7RMB/kw.hSteam price: 200RMB/TonCooling water price : 0.5RMB/ton