Table 1 Table showing the feed gas composition, gas consumption in hydrate phase and the conversion of water to hydrate in the presence of 0.5 wt% l-met and l-phe.

From: Clathrate Hydrates of Greenhouse Gases in the Presence of Natural Amino Acids: Storage, Transportation and Separation Applications

Composition of feed gas

Gas uptake (mol/mol)

Conversion (%)a

XCO2

XCH4

l-met

l-phe

l-met

l-phe

0

100b

0.137 (±0.004)

0.147 (±0.007)

86.28

92.25

0

100

0.030 (±0.004)

0.050 (±0.01)

18.87

31.45

12

88

0.070 (±0.01)

0.080 (±0.009)

44.03

50.32

22

78

0.090 (±0.01)

0.080 (±0.012)

57.32

50.96

33

67

0.100 (±0.004)

0.110 (±0.03)

64.10

70.51

54

46

0.120 (±0.004)

0.131 (±0.006)

77.96

84.73

65

35

0.120 (±0.004)

0.113 (±0.005)

78.43

73.85

80

20

0.130 (±0.01)

0.046 (±0.026)

86.67

30.67

100

0

0.132 (±0.003)

0.028 (±0.006)

90.37

19.44

  1. aConversion = (Observed gas consumption/Expected gas consumption from CSMGem)*100.
  2. bExperiments conducted at ~5300 kPa (@275 K) and all other experiments were perfomed at ~3300 kPa gas pressure.
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