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Associated gas will burn profitably

17.09.2004

Engineers from North Dakota want to use gas microelectric turbines in oil fields.

Associated gas, which, together with oil, flies out of the well, is by no means always used. Either the quality is not very good, or the quantity is not enough - it is unprofitable to build a gas pipeline to the nearest plant, or something else. In general, most oilmen burn this gas, polluting the environment and contributing to the greenhouse effect without any benefit to humanity.

"We believe that by installing microelectric turbines in the mines, it will be possible to both generate electricity and reduce emissions of harmful substances by three-quarters," says John Harju from the Center for Energy and Environmental Studies at the University of North Dakota. Now the center's engineers have begun testing such turbines in their state's oil fields. The microturbine is specially designed for gas with a high sulfur content, up to 1,5% (this is the gas that comes from the Dakota subsoil); its power is 30 kW. This is quite enough to provide electricity to almost a dozen houses.

In principle, such a turbine can develop a power of up to 300 kW: then the contribution from waste associated gas to the power supply of the mine will be considerable and will help oil producers significantly save money.

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Lightning is known to generate nitrogen oxides and ozone, which indirectly create the hydroxyl radical (OH), the atmosphere's primary oxidant. Recent laboratory studies have shown that the weak and even invisible electrical discharges that accompany lightning flashes generate much more OH and hydroperoxyl radical (HO2) than previously thought - and than lightning itself does.

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