Table 3 Change in Gibbs energy and enthalpy for different steps toward 1-butanol and i-octanol as published by Schemme [75]
From: Thermodynamic and ecological preselection of synthetic fuel intermediates from biogas at farm sites
Product | Eq. | p, bar | T, K | ΔHR (STP), kJ/mol | ΔGR (STP), kJ/mol | ΔHR(p,T), kJ/mol | ΔGR(p,T), kJ/mol |
|---|---|---|---|---|---|---|---|
Methanol | (8) | 80 | 523 | − 49.2 | 5.6 | − 39.1 | 12.1 |
Dimethylether | (17) | 50 | 523 | − 24.0 | − 20.2 | − 21.7 | − 18.0 |
Carbon monoxide | (3) | 1 | 1073 | 41.2 | 28.6 | 34.1 | 0.8 |
Methyl actetate | (18) | 140 | 478 | − 117.3 | − 70.8 | − 118.3 | − 62.0 |
Ethanol | (19) | 140 | 478 | − 24.0 | − 4.7 | − 18.9 | − 107.0 |
Ethanal | (20) | 1 | 673 | 68.8 | 31.3 | 72.9 | − 18.1 |
Croton aldehyde (l) | (21) | 70 | 493 | − 1.8 | 4.8 | − 56.7 | − 4.8 |
Butanol (l) | (22) | 70 | 493 | − 173.2 | − 108.5 | − 183.4 | − 142.1 |
Butanal (g) | (23) | 1 | 673 | 68.9 | 35.9 | 85.2 | −13.7 |
2-ethyl-hexen-1-al | (24) | 1 | 323 | − 19.7 | − 16.5 | − 46.4 | − 30.1 |
2-ethyl-hexan-1-ol | (25) | 1 | 323 | − 167.0 | − 99.4 | − 188.6 | − 151.01 |