Assignment:
A thermal process (in this example a large rotating dryer) operating at 1500 degrees F is said to have air emissions of 5 lbs/hr formaldehyde (from the presence of formic acid) and 2 lbs/hr acetaldehyde (from the presence of acetic acid). The air stream from the thermal process is quantified as 75,000 cu. ft. per minute.
The problem asks us to use kinetics and the Arrhenius equation to predict the level of formaldehyde and acetaldehyde air emissions if the thermal process temperature was reduced to 750 degrees F (and assuming all else equal).