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Listening Quiz: Tái Sinh Xúc Tác Trong Lò Phản Ứng Lớp Cố Định – Medium Level
Th1 10, 2025
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bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
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1.
What is the main topic of the conversation?
Replacing a broken reactor with a new one
Increasing output by changing the reaction temperature
Cleaning laboratory glassware after an experiment
Planning how to regenerate a catalyst in a fixed bed reactor
Explanation:
Laura and Paul discuss that the catalyst is losing activity and plan a regeneration programme for it inside the fixed bed reactor.
2.
How will the catalyst be regenerated?
By replacing it with a new catalyst
By cooling it until the deposits fall off
By removing it from the bed and washing it with water
By using controlled oxidation to burn off deposits
Explanation:
Laura says they regenerate it inside the fixed bed and use controlled oxidation to burn off deposits.
3.
What does Laura say must be done first before regeneration begins?
Test the catalyst activity again
Stop the reaction safely
Remove the catalyst from the bed
Increase the reaction output
Explanation:
Laura clearly says, ‘First, we must stop the reaction safely.’
4.
What can be inferred about the regeneration process?
It must be carefully controlled to avoid unsafe conditions
It is a quick task that always takes only a few minutes
It is unnecessary unless the reactor output increases
It requires taking the reactor completely apart
Explanation:
Laura says the reaction must be stopped safely and the temperature must be kept within safe limits, which implies the process needs careful control.
5.
What will they do after the regeneration is finished?
Shut down the reactor permanently
Replace the fixed bed with a new one
Add more deposits to improve performance
Test the catalyst to confirm it is active
Explanation:
Laura says, ‘Absolutely, we test to confirm the catalyst is active.’
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Tiếp theo:
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