1. 1

2. Four Massecuite Boiling SystemBy
Muhammad Usman
(Management Trainee Engineer)
Production Department
Shakarganj Mills Limited, Bhone 2

3. Contents Sugar Losses Sugar Quality Sugar Boiling
Different Massecuite Boiling System
Practical Case Study Three Massecuite Boiling
Practical Case Study Four Massecuite Boiling
Graphical Representation of Results
Outcomes of Four Massecuite Boiling
Executive Summary
Sugar Losses
Sugar Quality 3

4. To Produce & Develop Sugar Crystals
Sugar Boiling
To Produce & Develop Sugar Crystals Or
De – Sugaring of Syrup 4

5. Massecuite Boiling System
Syrup Sugar + Final Molasses
(78 – 80) (30 – 32)
2 – Massecuite System
A & C – Massecuite Formation (Syrup < 74)
3 – Massecuite System
A, B & C – Massecuite Formation
(Syrup > 74) 5

6. Massecuite Boiling System
Higher Juice Purity
Higher Final Molasses Purity
Higher Sugar Losses
4 – Massecuite System
A1, A, B & C – Massecuite Formation
(Syrup > 78) 6

7. Practical Case Study at SML Bhone
Three (03) Massecuite Boiling System
October – November – December
Material
Purity
Molasses
Difference
Clear Juice
76.02
Syrup
76.34
A - Massecuite
82.70
A - Heavy
64.79
 17.91
B - Massecuite
70.36
B - Heavy
49.08
 21.27
C - Massecuite
53.09
Final Molasses
33.03
20.06
Purity Drop: 43.31 7

8. Three Massecuite Boiling Scheme
Syrup
(78 – 80)
A – Massecuite
(80 – 82)
Three Massecuite
Boiling Scheme
A – Heavy
(64 – 66)
A – Sugar (97 – 98)
B – Massecuite
(67 – 70)
A - Remelter
To Refinery
B – Sugar (95 – 96)
B – Heavy
(45 – 48)
C – Massecuite
(47 – 50)
Slurry
C – Sugar (77 – 80)
F. M.
(30 – 32)
To Distillery
C – Seed (91 – 92)
C – Light
(62 – 64) 8

9. Practical Case Study at SML Bhone
Four (04) Massecuite Boiling System
January – February – March
Material
Purity
Molasses
Difference
Clear Juice
81.20
Syrup
81.75
A1 - Massecuite
92.30
A - Light
82.20
10.10
A - Massecuite
82.66
A - Heavy
64.42
18.24
B - Massecuite
69.36
B - Heavy
47.10
22.26
C - Massecuite
51.29
Final Molasses
32.64
18.47
Purity Drop: 49.11 9

10. Four Massecuite Boiling Scheme
Syrup
(78 – 80)
C – Seed Melt
(90 – 92)
B – Seed
(95 – 96)
ROR
(92 – 93)
A – Massecuite
(80 – 82)
A1 – Massecuite
(92 – 93)
A – Heavy
(64 – 66)
A – Sugar (97 – 98)
A1 – Sugar (97 – 98)
A – Light
(80 – 82)
B – Massecuite
(67 – 70)
A - Remelter
To Refinery
B – Sugar (95 – 96)
B – Heavy
(45 – 48)
C – Massecuite
(47 – 50)
Slurry
Four Massecuite
Boiling Scheme
C – Sugar (77 – 80)
F. M.
(30 – 32)
To Distillery
C – Seed (91 – 92)
C – Light
(62 – 64) 10

11. Graphical Representation11

12. Graphical Representation12

13. Outcomes of Four Massecuite Boiling
Overall Purity Control of Massecuite & Molasses
Higher Purity Drop from Massecuite to Molasses
05 – 06° Purity Drop of Final Molasses
Reduced Sugar Losses in Molasses
Best Sugar Quality due to Less Molasses Recirculation at Refinery 13

14. Three Massecuite Boiling System Four Massecuite Boiling System
Executive Summary
Three Massecuite Boiling System
Four Massecuite Boiling System
Efficiency of Boiling House Increases
from % to % 14

15. Three Massecuite Boiling System Four Massecuite Boiling System
Executive Summary
Three Massecuite Boiling System
Four Massecuite Boiling System
Quality of Sugar Increases
R₁ : 30, R₂: 37, R₃:48
R₁ : 25, R₂: 35, R₃:44 15

16. Thanks 16