DRD – Dedini Refinado Direto (Dedini Direct Refined)

DRD – Dedini Refinado Direto (Dedini Direct Refined)

DRD – Dedini Refinado Direto
(Dedini Direct Refined)
Improvements In Refined
and Crystal White Sugar
Production
Fernando C. Boscariol / Paulo E. Mantelatto
Dedini S/A Indústrias de Base
[email protected]
DRD Process for Direct Refined Sugar
(Original Purpose)
Olivério, J. L. and Boscariol, F.C. (2006). DRD – DEDINI Direct Refined – The refined sugar without a refinery, International
Sugar Journal, 108: 1289, 239-246.
DRD application to assist the production of white
crystal sugar
14.000 IU
70%
11.500 IU
3.500 IU
Syrup
Clarified
Syrup
11.500 IU
Clarified juice
A
MASSECUITE
Crystal White Sugar
30%
B
MASSECUITE
A
runoff
B
runoff
syrup
syrup
C
MASSECUITE
<150 IU
B-SUGAR
C-SUGAR
MOLASSES
Flow Sheet of DRD Process
FO
F1
F2
F3
Over View of DRD Process Pilot Plant
Basic characteristics of the ion
exchange resins
DRD Application to Clarifier Syrup Obtained from
High Coloured Clarified juice from RB-92579
Aspect of Clarified Juice from
RB-92579 Dark Colored
Objective: Production of
Crystal White Sugar <150 IU
DRD Application to Clarifier Syrup Obtained from
High Coloured Clarified juice from RB-92579
16 000 to 18 000 IU
Syrup
Aspect of Clarified Juice from
RB-92579 Dark Colored
<150 IU
Objective: Production of
Crystal White Sugar <150 IU
Trial DRD Test in Caeté and União Sugar and
Ethanol Mill – NE of Brazil
16 000 to 18 000 IU
Caeté and União
DRD pilot trials
Syrup
<150 IU
Trial to evaluate the DRD -System in the Caeté and
União Sugar and Ethanol Mill – Northeast of Brazil
Objective: To study the behavior of the
DRD process in the colour removal of
high coloured syrup that were obtained of
different quantity of RB-92579 milled.
Apply this system to assist production of
white crystal sugar, with colour < 150 IU
Variation of Syrup Colour vs. Quantity of Cane
RB-92579 Milled – Caeté Sugar and Ethanol Mill
19
/9/
2
26 006
/9/
2
3/1 006
0/
10 200
6
/10
/20
17
/10 06
/
24 200
6
/10
/20
31
/10 06
/2
7/1 006
1/
14 200
6
/11
/20
21
/11 06
/
28 200
6
/11
/20
06
5/1
2/
12 200
6
/12
/20
19
/12 06
/
26 200
6
/12
/20
2/1 06
/2
0
9/1 07
/2
16 007
/1/
2
23 007
/1/
2
30 007
/1/
20
6/2 07
/2
13 007
/2/
20
07
A-Sugar Colour (IU)
300
250
80%
200
70%
60%
150
50%
40%
100
30%
50
20%
10%
0%
Sugar Colour Daly
Quantity RB92579
Quantity RB92579 (%)
Variation of A-Sugar Colour vs Quantity of Cane
RB-92579 Milled – Caeté Sugar and Ethanol Mill
100%
90%
Colour Syrup, Magma and White Sugar –
Caeté Sugar and Ethanol Mill - Season 2008
25.000
Raw Syrup
Clarified Syrup
MAGMA
White Sugar
Colour (IU)
20.000
15.000
10.000
5.000
0
22
4-0
8
0
20
12
5-0
8
0
20
01
6-0
8
0
20
21
6-0
8
0
20
11
7-0
8
0
20
31
7-0
8
0
20
20
8-0
8
0
20
Date
09
9-0
8
0
20
29
9-0
8
0
20
19
0-1
8
0
20
08
1-1
8
0
20
28
1-1
8
0
20
Flow Sheet of DRD Process
F0
F1
F2
LEGEND of SAMPLES
F3
F4
Variation of Syrup Colour and Quantity of Cane
RB-92579 Milled – Caeté Sugar and
Ethanol
Mill
DRD
Experiments
in
Caeté Sugar and Ethanol Mill
Some Examples
Obs: The analysis
presented problems.
of
turbidity
DRD Experiments in the Caeté Sugar and
Ethanol Mill (São Miguel – AL- Brazil)
V = syrup feed volume (cumulative);
F0 = colour of syrup feed to the sand press filter;
F1 = output syrup colour from the sand press filter (filled with sand);
F2 = output syrup colour from cationic column DRD1 (filled with 200 L resin);
F3 = output of first anionic column DRD2 (filled with 200 L resin); and
F4 = output of second anionic column DRD3 (filled with 150L of DRD3 resin).
DRD Experiments in the Caeté Sugar and
Ethanol Mill (São Miguel – AL- Brazil)
DRD Operation System in the Caeté Sugar and Ethanol Mill
100
18000
Efficiency
16000
Inlet Colour
Outlet Colour
Average Efficiency
90
80
70
12000
60
10000
50
8000
40
6000
30
4000
20
2000
10
Cycles
67
64
61
58
55
52
49
46
43
40
37
34
31
28
25
22
19
16
13
10
7
0
4
1
0
Efficiency(%)
Colour (IU)
14000
Visual Aspects of the syrup treated with DRD
System – Step by Step
F1
8 856 IU
F2
6 647 IU
F3
3 808 IU
F4
1 846 IU
Colour vs. Bed Volumes fed along of DRD
Process- Caeté Sugar and Ethanol Mill.
Test to determine
the capacity
of colour
adsorption
in resin 1/68
cycles
Determine
the capacity
of colour
adsorption
in resin
12000
Colour (IU)
10000
8000
6000
4000
Fo
2000
F1
F2
F3
F4
0
0
5
10
15
20
25
30
Bed Volumes
F0 = clarified syrup colour; F1 = outlet of Sand filter; F2 = outlet of column
DRD-1; F3 = outlet of column DRD-2; F4 = Outlet of column DRD -3
Colour load accumulated in the ion exchange resins
vs. bed volumes fed - Caeté Sugar and alcohol Mill.
Determine the capacity of colour adsorption in resin 1/68 cycles
Colour accumulated(IU) /L resin
120000
100000
F3
F4
y = 3005,6x
R2 = 0,9894
80000
60000
40000
y = 2851,1x
R2 = 0,9956
20000
0
0
5
10
15
20
25
30
35
BED VOLUMES
F3 = outlet of column DRD-2, F4 = outlet of column DRD-3
40
Overall efficiency of colour removal by the DRD-Dedini system
vs. cane variety RB92579 processed - Caeté Sugar and Ethanol
Mill
Colour Removal Efficiency
80%
70%
60%
50%
40%
30%
2
R = 0,0016
20%
10%
0%
0%
10%
20%
30%
40%
50%
60%
% Cane - RB 92579
70%
80%
90% 100%
DRD Experiments in
União Sugar and Ethanol Mill
Some Examples
DRD Experiments in the União Sugar
and Ethanol Mill (Primavera- PE- Brazil)
V = syrup feed volume (cumulative);
F0 = colour of syrup feed to the sand press filter;
F1 = output syrup colour from the sand press filter (filled with sand);
F2 = output syrup colour from cationic column DRD1 (filled with 200 L resin);
F3 = output of first anionic column DRD2 (filled with 200 L resin); and
F4 = output of second anionic column DRD3 (filled with 150L of DRD3 resin).
DRD Experiments in the União Sugar
and Ethanol Mill (Primavera- PE- Brazil)
DRD Operation System União Sugar and Ethanol Mill
90
20000
Efficiency
Inlet Colour
Outlet Colour
Average Efficiency
18000
80
16000
70
60
12000
50
10000
40
8000
30
6000
20
4000
10
2000
0
0
1
3
5 7
9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65
Cycles
Efficiency (%)
Colour (IU)
14000
Colour vs. Bed Volumes fed along of DRD
Process- Caeté Sugar and Ethanol Mill.
Test to determine the capacity of colour adsorption in resin 1/65cycles
16000
FO
14000
F1
F3
F2
F4
Colour (IU)
12000
10000
8000
6000
4000
2000
0
0
5
10
15
20
25
30
35
Bed Volumes
F0 = clarified syrup colour; F1 = outlet of Sand filter partially filled DRD 3 (150 L ) and DRD-4 (150
L); F2 = outlet of column DRD-1; F3 = outlet of column DRD-2; F4 = Outlet of column DRD -3
Colour load accumulated in the ion exchange resins
vs. bed volumes fed - Uníão Sugar and Ethanol Mill
Experiments to determine the capacity of colour adsorption in resin 1/65 cycles
Colour Acumulated (IU) / L resin
80.000
F1
F3
y = 2851,1x
R2 = 0,9956
F4
70.000
y = 3329x
R² = 0,9888
60.000
y = 2022,7x
R² = 0,9668
50.000
40.000
30.000
20.000
10.000
0
0
5
10
15
20
25
30
35
Bed Volumes
F0 = clarified syrup colour; F1 = outlet of Sand filter partially filled DRD 3 (150 L ) and DRD-4 (150
L); F2 = outlet of column DRD-1; F3 = outlet of column DRD-2; F4 = Outlet of column DRD -3
Colour of Sugar vs. Colour of Syrup for various process
of Crystallization – White Crystal and Refined.
(1) DRD System (Olivério and Boscariol, 2006 and 2007), refined sugar obtained from
decolourised syrup: y= 0.007 . x + 17.65;
(2) Thompson et al. (2006) refined sugar;
(3) White crystal sugar – Us. Mogiana (SP): y= 47.73 . exp (1.31 . 10-4. x);
(4) White crystal sugar – Us Sta Isabel (SP): y= 19.96 . exp ( 2.10 . 10-4. x);
(5) White crystal sugar – Us. Caeté (AL): y= 46.88 . exp ( 0.98 . 10-4 . x);
(6) White crystal sugar – Us. União Indústria( PE): y= 42.20 . exp (1.31 . 10-4. x);
(7) Controlled cooling crystallization of liquor obtained from raw sugar (VHP and
VVHP) and cane syrup, ( Mantelatto, 2005): y= 0.0214. x+ 8.80.
x: Colour of syrup (IU), y: Colour of crystal (IU).
Colour of Sugar vs. Colour of Syrup for various process
of Crystallization – White Crystal and Refined.
Colour of Sugar x Colour of Syrup
350
(1) DRD
(2) THOMPSON
300
(3) MOGIANA
SUGAR COLOUR (IU)
(4) STA ISABEL
(6)
(5) CAETÉ
250
White Crystal Sugar
(6) UNIÃO
(7) Cooling Crystallization
200
(5)
150
Sugar Refined
100
(3)
(2)
(4)
(7)
50
(1)
0
0
2000
4000
6000
8000
10000
SYRUP COLOUR (IU)
12000
14000
16000
Conclusions
-The colour accumulated in the resins presented a linear
behaviour with the BV fed to the columns.
- The different slopes of the curves indicate different load factors
depending on the characteristics of the resin and also the affinity
between colour compounds and functional group of the resins
- Considering that anionic resins can operate up to 60-70% of
saturations, anionic DRD resin can reaches level of load colour as
60 000 – 65 000 IU. Values relatively high when compared with
conventional resins.
- Thus, demonstrating the capacity to bear high rates of colour
adsorption, even for syrup containing high initial colour loads.
Conclusions
- None relationship was detected between colour removal efficiency of resins
and quantity of cane variety RB-92579 in the cane being supplied to the
factory.
-As indicated by the data, the extra colour loading introduced by RB-92579 has
no effect on the colour removal efficiency of the resins.
- It was observed that the resin system was capable of maintaining a removal
efficiency in the range of 50 to 70%, even when processing this variety of cane
with higher clarified juice colour.
- It was shown that the DRD-Dedini system could be used successfully both
assist the production of white sugar and the production of refined sugar by
using clarified syrup as the feed to the decolourisation process.
- The colour removal factor in the crystallisation of juice coming from the
DRD system was excellent, when compared with the other systems presented
Conclusions
-Finally, DRD technology proved to be an improvement
to the white sugar process, even for high colour syrups.
-From the study conducted, in addition to the studies
previously conducted (Olivério and Boscariol, 2006 and
2007), it could be concluded that the DRD system can be
advantageously used both in the production of
granulated refined sugar and for the production of white
crystal sugar (colour < 150 IU)
Thank You!
DRD – DEDINI REFINADO DIRETO (DEDINI DIRECT REFINED)
IMPROVEMENTS IN REFINED AND CRYSTAL WHITE SUGAR
PRODUCTION
CONTACT
Fernando C. Boscariol
Dedini Indústrias de Base
[email protected]