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Fuel Gases - Heating Values

Combustion and heating values of fuel gases - acetylene, blast furnace gas, ethane, biogas and more - Gross and Net values

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Gross and Net heating values from combustion of common fuel gases are indicated in the table below:

Gas	Gross Heating Value		Net Heating Value
Gas	(Btu/ft³)	(Btu/lb)	(Btu/ft³)	(Btu/lb)
Acetylene (ethyne) - C₂H₂	1,498	21,569	1,447	20,837
Benzene	3,741	18,150	3,590	17,418
Blast Furnace gas	92	1,178	92	1,178
Blue water gas		6,550
Butane - C₄H₁₀	3,225	21,640	2,977	19,976
Butylene (Butene)	3,077	20,780	2,876	19,420
Carbon to CO₂		14,150		14,150
Carbon to CO		3,960		3,960
Carbon monoxide - CO	323	4,368	323	4,368
Carburetted Water Gas	550	11,440	508	10,566
Coal gas	149	16,500
Coke Oven Gas	574	17,048	514	15,266
Digester Gas (Sewage or Biogas)	690	11,316	621	10,184
Ethane - C₂H₆	1,783	22,198	1,630	20,295
Ethyl alcohol saturated with water	1,548	12,804
Ethylene	1,631	21,884	1,530	20,525
Hexane	4,667	20,526	4,315	18,976
Hydrogen (H₂)	325	61,084	275	51,628
Hydrogen Sulphide	672	7,479
Landfill Gas	476
Methane - CH₄	1,011	23,811	910	21,433
Methyl alcohol saturated with water	818	9,603
Naphthalene	5,859	17,298
Natural Gas (typical)	950 - 1,150	19,500 - 22,500	850 - 1,050	17,500 - 22,000
Octane saturated with water	6,239	20,542	3,170	10,444
Pentane	3,981	20,908	3,679	19,322
Producer gas		2,470
Propane - C₃H₈	2,572	21,564	2,371	19,834
Propene (Propylene) - C₃H₆	2,332	20,990	2,181	19,630
Propylene	2,336	21,042	2,185	19,683
Sasol	500	14,550	443	13,016
Sulphur		3,940
Toulene	4,408	18,129	4,206	17,301
Water Gas (bituminous)	261	4,881	239	4,469
Xylene	5,155	18,410