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Table 5 ANOVA table for transesterification process

From: Process optimization of Calophyllum inophyllum-waste cooking oil mixture for biodiesel production using Donax deltoides shells as heterogeneous catalyst

Source

Sum of Squares

df

Mean Square

F-value

p-value

 

Model

8140.50

9

904.50

151.37

<  0.0001

significant

A-Catalyst concentration

155.87

1

155.87

26.09

0.0005

 

B-Methanol to oil ratio

1578.11

1

1578.11

264.10

<  0.0001

 

C-Reaction time

333.72

1

333.72

55.85

<  0.0001

 

AB

166.44

1

166.44

27.85

0.0004

 

AC

23.91

1

23.91

4.00

0.0734

 

BC

2568.65

1

2568.65

429.87

<  0.0001

 

A2

3281.85

1

3281.85

549.23

<  0.0001

 

B2

0.1106

1

0.1106

0.0185

0.8945

 

C2

12.20

1

12.20

2.04

0.1835

 

Residual

59.75

10

5.98

   

Lack of Fit

59.04

5

11.81

82.63

<  0.0001

 

Pure Error

0.7145

5

0.1429

   

Cor Total

8200.25

19

    
  1. R2–0.9927; Adj. R2–0.9862; Pred. R2–0.9349
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Sustainable Environment Research

ISSN: 2468-2039

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