which one of the following gases is used in combustion
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Explanation:
In precombustion technologies, combustion is made using pure oxygen (up to 97% purity); however, a small amount of nitrogen and argon remains. A big part of the exhaust gases is recycled in the boiler to maintain the usual temperature levels of pulverized coal (PC) without capture
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Answer:
pure using oxygen up to 97%purity
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