Research Article
An Investigation of Biodiesel Production from Wastes of Seafood Restaurants
Table 3
Experimental design matrix with experimental and predicted values of biodiesel yield.
| Run number | Factors/levels | Biodiesel yield (wt%) |
M : O (Molar ratio) |
Catalyst (wt%) |
Time (min) |
Mixing rate (rpm) | CaO from mollusks shells | CaO from crabs shells | Levels | Actual value | Levels | Actual value | Levels | Actual value | Levels | Actual value | Experimental | Predicted | Experimental | Predicted |
| 1 | 3 | 12 : 1 | 3 | 9 | 3 | 120 | 2 | 300 | 79.80 | 79.90 | 85 | 85.60 | 2 | 1 | 6 : 1 | 3 | 9 | 3 | 120 | 1 | 200 | 85.10 | 85.10 | 74 | 74.00 | 3 | 2 | 9 : 1 | 3 | 9 | 2 | 60 | 3 | 400 | 87.00 | 87.00 | 82.5 | 82.50 | 4 | 1 | 6 : 1 | 3 | 9 | 1 | 30 | 2 | 300 | 78.40 | 78.40 | 85.5 | 85.50 | 5 | 1 | 6 : 1 | 2 | 6 | 3 | 120 | 3 | 400 | 79.20 | 79.20 | 78.5 | 78.50 | 6 | 2 | 9 : 1 | 3 | 9 | 1 | 30 | 3 | 400 | 76.00 | 76.00 | 88 | 88.00 | 7 | 2 | 9 : 1 | 2 | 6 | 1 | 30 | 2 | 300 | 71.80 | 71.80 | 92 | 92.00 | 8 | 3 | 12 : 1 | 1 | 3 | 1 | 30 | 1 | 200 | 83.40 | 83.40 | 91 | 90.85 | 9 | 1 | 6 : 1 | 1 | 3 | 1 | 30 | 1 | 200 | 91.50 | 91.75 | 93 | 93.50 | 10 | 1 | 6 : 1 | 1 | 3 | 2 | 60 | 2 | 300 | 88.00 | 87.90 | 92.5 | 92.90 | 11 | 2 | 9 : 1 | 2 | 6 | 3 | 120 | 1 | 200 | 73.80 | 73.80 | 80 | 80.00 | 12 | 2 | 9 : 1 | 1 | 3 | 3 | 120 | 2 | 300 | 78.40 | 78.40 | 93 | 93.00 | 13 | 3 | 12 : 1 | 1 | 3 | 3 | 120 | 3 | 400 | 78.50 | 78.65 | 96 | 96.50 | 14 | 3 | 12 : 1 | 2 | 6 | 1 | 30 | 3 | 400 | 78.40 | 78.40 | 91 | 91.00 | 15 | 3 | 12 : 1 | 2 | 6 | 2 | 60 | 1 | 200 | 74.20 | 74.35 | 89 | 89.50 | 16 | 3 | 12 : 1 | 3 | 9 | 3 | 120 | 2 | 300 | 80.00 | 79.90 | 86.2 | 85.60 | 17 | 1 | 6 : 1 | 1 | 3 | 1 | 30 | 1 | 200 | 92.00 | 91.75 | 94 | 93.50 | 18 | 3 | 12 : 1 | 2 | 6 | 2 | 60 | 1 | 200 | 74.50 | 74.35 | 90 | 89.50 | 19 | 3 | 12 : 1 | 1 | 3 | 3 | 120 | 3 | 400 | 78.80 | 78.65 | 97 | 96.50 | 20 | 1 | 6 : 1 | 1 | 3 | 2 | 60 | 2 | 300 | 87.80 | 87.90 | 93.3 | 92.90 |
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