Skip to main content

Table 4 CCD matrix for the biodiesel production from CIO-WCO mixture

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

Run

A: Catalyst concentration

B: Methanol to oil ratio

C: Reaction time

Experimental biodiesel conversion

Predicted biodiesel conversion

wt%

% (v/v)

min

%

%

1

4.64

72

150

38.8

39.5

2

8

72

150

76.7

76.5

3

6

82

180

67.0

68.8

4

11.36

72

150

29.1

28.1

5

10

62

180

48.2

51.2

6

10

82

180

59.1

56.4

7

6

82

120

49.1

46.3

8

8

72

99.6

83.0

82.2

9

10

62

120

95.0

93.4

10

8

55.18

150

95.1

94.3

11

6

62

120

91.6

94.5

12

8

72

150

76.7

76.5

13

10

82

120

23.9

27.0

14

8

72

150

76.7

76.5

15

8

72

150

76.2

76.5

16

8

72

150

75.8

76.5

17

8

88.82

150

57.7

58.1

18

8

72

150

76.5

76.5

19

8

72

200.5

65.0

65.6

20

6

62

180

48.2

45.3