Achemical plant produces an ammonia-rich waste gas that cannot
be released as-is into th...
Achemical plant produces an ammonia-rich waste gas that cannot
be released as-is into the environment. one method to reduce the
ammonia concentration in the waste gas is to bubble the waste gas
through a liquid solvent. components of the gas that are highly
soluble, like ammonia, will dissolve into the liquid phase. water
is an appropriate liquid solvent for this process. the chemical
plant produces 115.0 m3/hr of waste gas (? = 0.0407 mol/l)
initially having a mole fraction of 0.120 nh3, and wishes to remove
90.0% of the initial amount of nh3. the maximum concentration of
ammonia in water at this temperature is 0.4000 mol nh3/ mol water.
neglect the absorption of other waste gas components into the
water, and the evaporation of water into the waste gas stream.
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