外文标题：China builds world's largest coal mine gas unit to make power
BEIJING: China has built the world's largest facility to turn excess methane gas from coal mines into electricity, which could help the communist giant reduce its emissions.
Lu'an Group - which completed the facility at Shanxi Province in north China - said it would soon start operating the generator with a capacity of 30 megawatts, capable of utilising 99 per cent of methane gas discharged from the coal mine, state-run Xinhua news agency reported today.
The poisonous gas is a common emission during underground mining.
Normally, mines will liquify the gas into methyl alcohol if it has a concentration higher than 30 per cent; for concentrations between 10 per cent and 20 per cent, it is captured and used to fuel internal combustion engines.
However, methane concentrations lower than 10 per cent, which qualifies 81 per cent of the gas released during mining, cannot be consumed through direct combustion.
DN Dheer (Jamnagar)
Welcome measure by Chinese Govt. Similar efforts can also be taken by Indian Govt to reduce carbon emissions and as well as utilize methane from coal mines for productive use
animesh p (bangalore)
largest, biggest, fastest - chinest!!
SNRK r (Mumbai) replies to animesh p
Easter Vin (chennai)
china is really concentrating on its growth.