【Q&A Question 101】2016.07.30
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【Q&A Question 101】July 30, 2016: What is the purpose of strictly controlling the metal content in crude oil? The answer key can be seen after responding; scoring is based on identifying the key points. Heavy metals, particularly nickel, vanadium, copper, lead, etc., can easily poison catalysts; even trace amounts of such metals can cause the catalyst to become permanently inactive, thereby reducing the operational life of the device.
Prevent metal clogging of the catalyst to maintain its activity
Prevent catalyst poisoning in the secondary processing unit.
To prevent catalyst poisoning, the accumulation of metal in the catalyst bed increases the pressure drop across that bed, leading to blockages in the heat exchanger.
Prevent certain metals from entering the reactor and reacting with the catalyst, thereby causing permanent poisoning of the catalyst.