China explores LNG use in cars to cut pollution

(South China Morning Post)
Updated: 2006-10-16 14:04

The Chinese government is expected to soon launch a programme to research and promote the use of liquefied natural gas (LNG) as a vehicle fuel as it attempts to address the soaring number of cars clogging its roads and air pollution clouding its skies.

Hou Fushen, an engineer working for both the National Clean Vehicle Co-ordination Leading Group Office and the China Automotive Technology and Research Centre, said the government would this month invite bids for research work to develop LNG engines and vehicles, as well as factory contracts to build newly designed engines and vehicles.

"The aim is to increase the technical level of LNG vehicles while decreasing costs and emissions," Mr Hou said. "We're planning to do some technical research and development work and demonstrate products, such as buses, in some cities."

The project is backed by the Ministry of Science and Technology and the National Clean Vehicle Action Co-ordination and Leading Group Office made up of more than 10 government departments.

New middle-class consumers in the world's fastest-growing vehicle market bought 5.9 million new cars last year, more than the country's total vehicle population in the 1990s and ranking it the second-largest car market after the United States.

All those additional cars are guzzling an increasing amount of oil - of which China heavily depends on imports - and accounting for a sizeable share of the country's urban pollution problem. Finding new vehicle fuels not only addresses environmental concerns but helps to diversify China's fuel consumption.

LNG is natural gas that has been super-cooled and compressed, turning it into a liquid. It is transported in highly pressurised tanks and costs more than natural gas delivered via pipeline. It is widely used as a power-generation fuel.

Mr Hou says there are only about 300,000 gas-powered vehicles in China, including those burning liquefied petroleum gas (LPG) and compressed natural gas (CNG).

"CNG vehicles account for more than 50 per cent of that and I think the number of cars using gas will grow very fast," Mr Hou said.

LPG, stored in canisters, is commonly used as fuel in taxis across Asia but is more dangerous in case of accidents and less environmentally friendly than CNG or LNG.

The cost of operating a vehicle on LNG compared with one burning CNG, LPG or petrol will depend largely on the price at which China can secure LNG supplies and the taxes that are applied to the fuel.


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