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Gas Production

Gas Production

In Hong Kong, town gas is produced at two production plants. Over 98% is supplied from the Tai Po Plant, with the Ma Tau Kok Plant making up the rest. The maximum supply capacity of the two production plants is around 12.6 million standard cubic metres of gas a day.

What is Town Gas?

Town gas, produced from naphtha and natural gas, is a clean, safe and reliable gaseous fuel. With about half the density of air, it rises and will dissipate in the air if leakages occur. A special odour has been added to town gas so that it can be detected easily.
 

Fuel Mix for Town Gas Production
Fuel-Mix-English-(2).PNG


Town Gas Characteristics

Chemical Composition

Carbon Dioxide 16.3% – 19.9%
Carbon Monoxide 1.0% – 3.1%
Methane 28.2% – 30.7%
Hydrogen 46.3% – 51.8%
Nitrogen and Oxygen 0% – 3.3%

Physical Properties

Calorific Value 17.27 MJ/m3
Specific Gravity 0.52
Wobbe Index 24
Weaver Flame Speed 35