Purging is the addition of an inert gas, such as nitrogen or carbon dioxide, to a...

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Purging is the addition of an inert gas, such as nitrogen or carbon dioxide, to a piece of process equipment that contains flammable vapours or gases to provide the space non ignitable for a certain period of time. One of the purging methods is sweep-through purging in which a purge gas is introduced into a vessel at one opening and the mixed gas is withdrawn at another opening and vented either to the atmosphere or to an air-pollution control device. tankwhose volume (V) is 80 m³ initially charged with at atmospheric pressure. Identify the correct answers (A) Volume of nitrogen required to bring down the oxygen concentration from 21% to 1% is 243.5 m³ (B) Volume of nitrogen required to bring down the oxygen concentration from 21% to 1% is 200.5m³ (C) Volume of nitrogen required to bring down the oxygen concentration from % to 2% is 188 m³ (D) Volume of nitrogen required to bring down the oxygen concentration from 21% to 2% is 168 m³. Purging is the addition of an inert gas, such as nitrogen or carbon dioxide, to a piece of process equipment that contains flammable vapours or gases to provide the space non ignitable for a certain period of time. One of the purging methods is sweep-through purging in which a purge gas is introduced into a vessel at one opening and the mixed gas is withdrawn at another opening and vented either to the atmosphere or to an air-pollution control device. tankwhose volume (V) is 80 m³ initially charged with at atmospheric pressure. Identify the correct answers (A) Volume of nitrogen required to bring down the oxygen concentration from 21% to 1% is 243.5 m³ (B) Volume of nitrogen required to bring down the oxygen concentration from 21% to 1% is 200.5m³ (C) Volume of nitrogen required to bring down the oxygen concentration from % to 2% is 188 m³ (D) Volume of nitrogen required to bring down the oxygen concentration from 21% to 2% is 168 m³.

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