TECHNOLOGY CHINA - DIMETHYL Ether Buses in Shanghai
USA - Green Car Congress - November 21, 2004 -- Shanghai Daily -- Researchers at Shanghai Jiao Tong University are developing a city transit bus that uses dimethyl ether (DME) as a fuel. DME is a clean-burning (completely sootless) synthetic fuel that can substitute for conventional diesel, liquefied petroleum gas (LPG) or be reformed into hydrogen for fuel cells. As a diesel fuel replacement it reduces NOx emissions 90% and features high cetane. A cetane number marks the ignition quality of a diesel fuel by measuring the delay between the start of injection and combustion. A high cetane number has a shorter delay period and is more desirable. Part of the interest in DME stems from the ability to produce it from a number of feedstocks: coal, natural gas, biomass. It is of particular interest to countries such as Japan and China.
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