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2. Liquefied petroleum gas - Wikipedia

   en.wikipedia.org/wiki/Liquefied_petroleum_gas

   LPG is composed mainly of propane and butane, while natural gas is composed of the lighter methane and ethane. LPG, vaporised and at atmospheric pressure, has a higher calorific value (46 MJ/m 3 equivalent to 12.8 kWh/m 3 ) than natural gas (methane) (38 MJ/m 3 equivalent to 10.6 kWh/m 3 ), which means that LPG cannot simply be substituted for ...

3. Wobbe index - Wikipedia

   en.wikipedia.org/wiki/Wobbe_index

   The Wobbe index is expressed in MJ/Nm³ (where 'Nm³' indicates'm³ in Normal conditions), or sometimes in BTU/scf.In the case of natural gas (molar mass 17 g/mol), the typical heating value is around 39 MJ/Nm³ (1,050 BTU/scf) and the specific gravity is approximately 0.59, giving a typical Wobbe index of 51 MJ/Nm³ (1,367 BTU/scf).

4. Propane - Wikipedia

   en.wikipedia.org/wiki/Propane

   In 1927, annual marketed LP gas production reached 1 million US gallons (3,800 m 3), and by 1935, the annual sales of LP gas had reached 56 million US gallons (210,000 m 3). Major industry developments in the 1930s included the introduction of railroad tank car transport, gas odorization, and the construction of local bottle-filling plants.

5. Van der Waals constants (data page) - Wikipedia

   en.wikipedia.org/wiki/Van_der_Waals_constants...

   To convert from / to /, divide by 10. To convert from / to /, divide by ... Propane: 8.779 0.08445 1-Propanol [2] 16.26 0.1079 2-Propanol [2] 15.82 0.1109 Propene [2]

6. Autogas - Wikipedia

   en.wikipedia.org/wiki/Autogas

   The cost to convert a vehicle to propane in Canada is approximately CA$4,000 to CA$6,000 for the current vapour or liquid fuel injected technology, and fleet users can expect a payback on the conversion cost within a year. Converting a vehicle to propane is approximately half the cost of converting a vehicle to natural gas in Canada.

7. Gasoline gallon equivalent - Wikipedia

   en.wikipedia.org/wiki/Gasoline_gallon_equivalent

   One GGE of natural gas is 126.67 cubic feet (3.587 m 3) at standard conditions. This volume of natural gas has the same energy content as one US gallon of gasoline (based on lower heating values: 900 BTU/cu ft (9.3 kWh/m 3) of natural gas and 114,000 BTU/US gal (8.8 kWh/L) for gasoline). [22]