Organo Corporation
Liquid Sugar Refining ProcessIon Exchange Resin
Demineralization System
JUNE 16, 2011
Organo THAILAND CO.
Organo Corporation
1.1. IntroductionIntroduction Ion exchange resins (IER) have been employed in the sugar refin
ery process for the purpose of decolorization and demineralization
(deashing) of sugar liquor. Compared to the remelting of white sug
ar, higher decolorization rate and extremely high sugar yield can be
obtained by the direct demineralization of clear liquor or fine liquor.
Organo has developed an efficient IER system the “SUPER FINE L
IQUOR SYSTEM” (A-MB system), which consists of an anion exch
ange resin tower and a mixed bed tower of anion exchange resin a
nd cation exchange resins. This system has been applied to many
sugar refinery factories in Japan and has an excellent reputation for
the high quality.
Organo Corporation
・ Low cost
( Ingredient of sauce)
(demineralization)
(Hydrolyzed sugar syrup)
2. Liquid Sugar Products in Japan2. Liquid Sugar Products in Japan
Ion exchange resin refined liquid sugar
Sucrose type
Liquid Sugar
・ High quality
Large scale production
Molasses type
Liquid Sugar
・ Distinct flavor
・ Nongenetically modified
(compared to isomerized sugar made from cornstarch)
Invert Syrup
Remelt liquid sugar
( granulated sugar )
・ Quality depends on granulated sugar and water.
Small scale production
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3. Refining Process (Japan)3. Refining Process (Japan)
A-MB System
Remelt
Carbonation
Filtration
Active carbon or
Bone char
Ion Exchange ResinDecolorization
Crystalization
Raw Sugar
Affination
Concentration
Ion Exchange ResinDeminiralization
Concentration
SterilizationFiltration
Liquid Sugar
B sugar from Australia, Thailand etc.
Crystalline Sugar
600 ~ 1000 I.U.
60 ~ 150 I.U.
20 ~ 50 I.U.
<10 I.U.
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4. Required Quality of Liquid Sugar4. Required Quality of Liquid Sugar (Example) (Example)
Bx 68+0.3,-0pH 6.0 7.0~particles < 1μ mpurity > 99%yeast < 5/ 10mlmold < 5/ 10mlbacteria < 25/ 10mlreducing sugar < 0.5%ash < 0.05%color <12RBU
arsenic (As) < 1.0mg/ kgcopper (Cu) < 1.5mg/ kglead (Pb) < 0.5mg/ kgsulfite (SO3
2-) < 6.0mg/ kgflavor, odor not abnormalacidic taste not abnormalcarbonate floc no formationalcohol floc no formationinsoluble content < 1mg/ kg
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5. Refining Process (Thailand)5. Refining Process (Thailand)
Sugar cane
B sugarC sugar
Ion Exchange Resin2 steps
Crystallization
Refined sugar
Brown sugar
White sugar<
300 ~ 600 I.U.
100 ~ 300 I.U.
~ 45 I.U.
45 ~ 100 I.U. 400 ~ 1000 I.U.
Concentration
Filtration
CarbonationCrushing &Extraction
Carbonation
Filtration
Concentration
A sugar
Crystallization
Remelt
Affination
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6.6. Liquid Sugar Production ProcessLiquid Sugar Production Process
A-MB System
Liquid sugar
Present process
Proposed process
Concentration< 20 IU< 1.0S/cm
Crystallization
Concentration
Carbonation
Remelt
Affination
Ion Exchange ResinDemineralization
Ion Exchange Resin2 steps
SterilizationFiltration
Filtration
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7.7. Total Demineralization ProcessTotal Demineralization Process
A-MB System
Refined sugar
Brown sugarWhite
sugar>
Present process
Proposed process
Concentration
Crystallization
< 20 ICUMSA< 1.0S/cm
Crystallization
Concentration
Carbonation
Remelt
Affination
Ion Exchange ResinDemineralization
Ion Exchange Resin2 steps
Filtration
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8.8. Principles of Demineralization Principles of Demineralization
Anion exchange
resin
Cation exchange re
sin
Clear liquor or Fine liquor
Liquid sugar( Super
fine)
Adsorption of color, ions, organic acids etc.
NaOH HCl
NaOH + NaClOrganic acidsNaCO3
Color etc.
HCl + CaCl2NaCl, KCl etc.
RegenerationDemineralization
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9.9. Conventional Ion Exchange SystemConventional Ion Exchange Systemss
Cation exchange tower
Anion exchange tower
Reverse system(A-K)
Mixed Bed system (MB)
Mixed bed tower
・ High total throughput
・ Low quality
・ High quality
・ Low total throughput
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10.10. A-MB System A-MB System
Anion exchange tower
Mixed bed tower
・ High quality
・ High total throughput
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Graph 1 Outlet color analysis of conventional systems and A-MB system
Conditions: 50℃, Flow rate 4 L/L-SBAER ・ h
Feed: Fine Liquor (Brix 50%, EC 98 mS/cm, pH 7.3, 71 I.U.)
11.11. Comparison of Ion Exchange SystemComparison of Ion Exchange Systemss
0
5
10
15
20
25
30
0 10 20 30 40Throughput (BV-total resin)
Col
or (
ICUM
SA u
nit)
A-K reverse systemMB mixed bed systemA-MB system
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Factory A Factory B Factory C Factory D
System Softening-A-MB
A-MB A-MB A-MB
Clear
Liquor
(Feed)
Color (I.U.) 854 450 ~ 600 380 580
Conductivity
(S/cm)
137 80 ~ 100 33 100
Super fine
Liquor
(Outlet)
Color (I.U.) 3 ~ 15 3 ~ 10 2 ~ 7 10 ~ 20
Conductivity
(S/cm)
0.3 ~ 1.0 0.5 ~ 1.5 0.2 ~ 0.5 0.2 ~ 0.8
12.12. Column Test Results (Thailand)Column Test Results (Thailand)
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13.13. Column Test Results (Example Column Test Results (Example 11 ))Feed Analysis ( Clear liquor) Brix 55% pH 7.8 Conductivity 90 S/cm Color Value 600 ICUMSA Unit
A(OH)- MB Used Resin( )
0
5
10
15
20
25
30
35
40
45
50
0 5 10 15 20 25 30 35 40 45 50
Feed Volume (BV)
Col
or (
I.U.)
0
1
2
3
4
5
6
7
8
9
10
H, C
ondu
ctiv
ity
(μS/c
m)
p
Color
pH
Conductivity
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14.14. Column Test Results (Example Column Test Results (Example 2)2)Feed Analysis ( Clear liquor) Brix 54% pH 8.2 Conductivity 137 S/cm Color Value 854 ICUMSA Unit
A-MB column test result
0
2
4
6
8
10
12
14
16
0 10 20 30
Bed volume ( against total anion exchange resin)
Col
or (
ICU
MS
A u
nit)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Con
duct
ivity
(uS
/cm
)
colorconductivity
Organo Corporation
15.15. Column Test Results (Example Column Test Results (Example 3)3)Feed Analysis ( Fine liquor) Brix 60% pH 7.2 Conductivity 60 S/cm Color Value 145 ICUMSA Unit
0
10
20
30
40
50
0 5 10 15 20 25Bed Volume (L/L-anion resin)
Co
lor
(IC
UM
SA
Un
it)
Fine liquor Column outlet