Table 2 Effect of various parameter on esterification reaction.

From: Microwave-assisted synthesis of biodiesel by a green carbon-based heterogeneous catalyst derived from areca nut husk by one-pot hydrothermal carbonization

Catalyst loading

Molar ratio OA: MeOH

Temperature (°C)

Time (min)

Efficiency (%)

Catalyst dosage

3 wt%

1:20

80

60

81.2

5 wt%

1:20

80

60

87.6

7 wt%

1:20

80

60

94.3

9 wt%

1:20

80

60

95.7

Molar ratio of OA and methanol

9 wt%

1:10

80

60

77.8

9 wt%

1:15

80

60

92.5

9 wt%

1:20

80

60

95.7

9 wt%

1:25

80

60

96.4

9 wt%

1:30

80

60

88.3

Temperature

9 wt%

1:25

60

60

79.3

9 wt%

1:25

70

60

93.6

9 wt%

1:25

80

60

96.4

9 wt%

1:25

90

60

94.1

9 wt%

1:25

100

60

91.7

Time

9 wt%

1:25

80

40

91.5

9 wt%

1:25

80

60

96.4

9 wt%

1:25

80

80

92

9 wt%

1:25

80

100

90.8