Table 1 Conversion of aqueous ABE solution over various catalysts[a]

From: Selective production of phase-separable product from a mixture of biomass-derived aqueous oxygenates

Catalyst

C balance (%)

Conv. (%)

4-HPO yield (%)

Liquid product distribution (%)

4-HPO

PNO

BAL

2-HPO

Others

_

100

–

–

–

–

–

–

–

Ceria

95

22

14

78

15

1

2

4

Sn-Ceria

106

71

61

86

3

3

3

5

Zn-Ceria

100

95

59

73

27

–

–

–

Fe-Ceria

92

95

57

75

25

–

–

–

In-Ceria

97

50

44

94

6

–

–

–

Sn-Ceria[b]

85

81

55

68

23

–

9

–

Sn-Ceria[c]

108

82

59

72

22

–

5

1

Sn-Ceria[d]

105

72

45

63

29

–

6

2

  1. [a] Reaction conditions: 3.2 g of catalyst (40–60 mesh), pretreated in H2 (15 mL min-1) at 420 °C for 1 h and then the reaction was conducted at 420 °C for 2 h; the A:B:E weight ratio is 9:51:1, the water content is 27 wt%, weight hourly space velocities (WHSV) = 0.5 h−1; N2 as carrier gas (flow rate = 10 mL min−1), the content of Zn, Fe, or In in doped ceria is 2 wt%. [b] A:B:E weight ratio is 3:6:1, the water content is 21 wt%. [c] The A:B:E weight ratio is 1:5.7:1.2, the water content is 20 wt%. [d] The A:B:E weight ratio is 1.7:4:1, the water content is 20 wt%. BAL butanal, BBA butyl butyrate, 2-HPO 2-heptanone, 4-HPO 4-heptanone, PNO 2-pentanone
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