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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

Technician A says that during oxidation, as NOx gases pass over the catalyst, the N atoms are pulled from the NOx molecules and are absorbed by the catalyst. The released oxygen atoms then flow through the converter to the second bed. The result of NOx oxidation is pure nitrogen plus oxygen or carbon dioxide. Technician B says that during the reduction phase inside the converter, hydrocarbon and carbon monoxide molecules experience a second combustion. The result of this combustion or oxidation process is water vapor and carbon dioxide. Who is correct?

a. Technician A only

b. Technician B only

c. Both A and B

d. Neither A nor B

To determine

The correct technician among A and B who are discussing the oxidation and combustion.

Explanation

In the process of reduction of nitrogen oxide, a catalyst named reduction catalyst is used which separates the oxygen and nitrogen on the passing of the nitrogen oxide over it. On separation, nitrogen combines with other nitrogen atoms in exhaust and oxygen combines either with CO gas to form carbon dioxide or moves to the oxidizing catalyst bed. Thus, using reduction converter nitrogen oxide separates into nitrogen, oxygen and carbon dioxide. This means technician A is not correct...

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