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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

ProductEq.p, barT, KΔHR (STP), kJ/molΔGR (STP), kJ/molΔHR(p,T), kJ/molΔGR(p,T), kJ/mol
Methanol(8)80523− 49.25.6− 39.112.1
Dimethylether(17)50523− 24.0− 20.2− 21.7− 18.0
Carbon monoxide(3)1107341.228.634.10.8
Methyl actetate(18)140478− 117.3− 70.8− 118.3− 62.0
Ethanol(19)140478− 24.0− 4.7− 18.9− 107.0
Ethanal(20)167368.831.372.9− 18.1
Croton aldehyde (l)(21)70493− 1.84.8− 56.7− 4.8
Butanol (l)(22)70493− 173.2− 108.5− 183.4− 142.1
Butanal (g)(23)167368.935.985.2−13.7
2-ethyl-hexen-1-al(24)1323− 19.7− 16.5− 46.4− 30.1
2-ethyl-hexan-1-ol(25)1323− 167.0− 99.4− 188.6− 151.01