Table 1 Catalytic performance at 240 °C, 10 bar, H2/CO = 2, 18–30% CO conversion

From: Promoted cobalt metal catalysts suitable for the production of lower olefins from natural gas

 

CO conv., X (%)

CTY (10−4 molCO. gCo−1 s−1)

C1, S (%)

C2–C4 olefins, S (%)

C2–C4 paraffins, S (%)

C5+, S (%)

CO2, S (%)

O/P C2–C4

α

Co

32

0.13

12

6

7

75

<2

0.8

0.69

Co3Mn1

31

0.14

11

17

10

62

<2

1.8

0.63

Co3Mn1–Na2O

20

0.09

9

14

7

42

28

1.9

0.53

Co3Mn1–Na2S

25

0.12

5

20

7

56

13

2.9

0.56

Co1Mn3

31

0.56

15

12

13

61

<2

0.9

0.67

Co1Mn3–Na2O

27

0.46

14

11

12

63

<2

0.9

0.65

Co1Mn3–Na2S

18

0.40

4

30

7

59

<3

4.2

0.53

Co1Mn3−Na2S2O3

22

0.42

7

25

12

56

<3

2.1

0.50

  1. CO conversion (X, %), activity per gram of Co (CTY), product selectivity (S, %), The detection limit of CO2 selectivity is 0.5% yield, equivalent to 3% CO2 selectivity at 18% CO conversion.
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