Spreadsheet: 0adb3446-659b-4c1f-8ed2-2e2f96411ebc
Sheet: Calcs

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 |  |  |  |  |  |  |  |  |  |  |  |  | Material Balance Calculations
 |  |  |  |  | Natural Gas Properties |  |  |  |  |  | Vol. % O2 in oxidant gas
 |  |  | Species | Mol. mass | Vol % | Mass, g | Mass % | DH°comb |  |  | % XS oxidant | 0
 |  | Methane | CH4 | 16.043 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Vol. % O2 in oxidant gas
 |  | [NAME] | C2H4 | 28.054 |  |  |  |  |  |  | Combustion products |  |  | Offgas temp., °C |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Desired %O2 in comb. flame | 0 |  |  |  | 0.05
 |  | [NAME] | [NAME] | 30.07 |  |  |  |  |  |  | Stoichiometric oxidant
 |  | Propane | C3H8 | 44.097 |  |  |  |  |  |  | Stoichiometric oxidant inerts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Combustion products
 |  | Butanes & higher | C4H10 + | 58.124 |  |  |  |  |  |  | Oxidant gas required |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Stoichiometric oxidant
 |  | Hydrogen | H2 | 2.016 |  |  |  |  |  |  | Excess oxidant |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Stoichiometric oxidant inerts
 |  | Carbon monoxide | CO | 28.011 |  |  |  |  |  |  | %O2 in offgas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Excess oxidant
 |  | Carbon dioxide | CO2 | 44.011 |  |  |  | 0 |  |  | Offgas amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | % stoichiometric oxidant gas
 |  | Water vapor | H2O | 18.016 |  |  |  | 0 |  |  | Dry stack gas amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | % excess oxidant gas
 |  | Nitrogen (by diff.) | N2 | 28.014 |  |  |  | 0 |  |  | %O2 in dry offgas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Required oxidant
 |  |  |  |  |  |  |  |  |  |  | Oxidant mass |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Combustion water
 |  |  | Molecular mass of NG |  |  |  | DH°comb of NG, kJ/g-mol |  |  |  | Oxidant/NG mass ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Stack gas volume
 |  |  | Molecular mass of O2 | 32 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Dry stack gas volume
 |  |  |  |  |  |  |  |  |  |  | Offgas H2O |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | %O2 in dry stack gas
 |  |  |  |  |  | moles | mass |  |  | Amount, | [NAME]
 |  |  |  |  | CO2 produced by combustion |  |  |  |  | g-mol | Offgas N2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Oxidant mass
 |  |  |  |  | H2O produced by combustion |  |  |  |  |  | [NAME] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Ox/NG mass ratio
 |  |  |  |  | Stoich. O2 required for combustion
 |  |  |  |  |  |  |  |  |  |  | Offgas H2O
 |  |  |  |  |  |  |  |  |  | Composition, | [NAME]
 |  |  |  |  | Table IV.  Heat content equation parameters, J/g-mol =  A + BT + CT2 + DT3 |  |  |  |  | vol. % | Offgas N2
 |  |  | N2, 25 - 1750 °C |  |  |  | O2, 25 - 1750 °C |  |  |  | [NAME]
 |  | A | B | C |  | A | B | C
 |  | -818 | 29.08 | 0.002294 |  | -965 | 30.94 | 0.002309
 |  |  |  |  |  |  |  |  |  |  |  |  |  | Available Heat Calculations
 |  | H2O(g), 25 - 1750 °C |  |  |  |  | CO2, 25 - 1750 °C
 | A | B | C | D |  | A | B | C | D |  | Species | Heat content at offgas temperature, kJ
 | -778 | 32.2 | 0.006755 | -4.45e-07 |  | -1082 | 38.87 | 0.01395 | -3.167e-06 |  | H2O
 |  |  |  |  |  |  |  |  |  |  | CO2
 |  |  |  |  |  |  |  |  |  |  | N2
 |  |  |  |  |  |  |  |  |  |  | O2
 |  |  |  |  |  |  |  |  |  |  | Total
 |  |  |  |  |  |  |  |  |  |  | % gross avail heat
 |  |  |  |  |  |  |  |  |  |  | Heat loss, kJ/mol of NG
 |  |  |  |  |  |  |  |  |  |  | % net avail heat