【Q&A Question 011】2018.01.11
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【Q&A Question 011】On January 11, 2018: How should used catalysts be stored after being removed, and why? Used catalysts contain metal sulfides such as iron sulfide; these sulfides are prone to oxidation when in contact with air, resulting in the formation of metal oxides. At the same time, a large amount of heat is released, and the sulfur oxides produced also pollute the environment. Therefore, used catalysts should be stored in an airtight manner to keep them separated from air. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Due to the limits on the number of posts in the “One Question per Day” section, “One Image per Day” has been moved to the registered devices section; you can access it through the directory I posted. Click me to access liuquan1100’s posting topic directory, where you can see the daily questions I posted. For management reasons, if you want to view content from a few days ago, please go through the summary post below. 2018 Chemical Engineering Technology Training – Daily Question Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=18889712018 Registered Equipment Section – Daily Image Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888970
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This post was last edited by “The Moon in My Hometown is Round” on January 11, 2018, at 08:57. How should used catalysts be stored after being removed from service, and why? Answer: Used catalysts contain metal sulfides such as iron sulfide. These sulfides readily oxidize upon exposure to air, forming metal oxides. This process also releases a large amount of heat, while the generated sulfur oxides pollute the environment. Therefore, used catalysts must be stored in a sealed manner, isolated from air, after being removed from service.
Used catalysts contain metal sulfides such as iron sulfide; these sulfides are easily oxidized when in contact with air to form metal oxides, releasing a large amount of heat in the process. The sulfur oxides produced also pollute the environment. Therefore, used catalysts should be stored in a sealed condition, isolated from air, after being removed from use.
Used catalysts contain metal sulfides such as iron sulfide; these sulfides are easily oxidized when in contact with air to form metal oxides, releasing a large amount of heat. The sulfur oxides generated thus pollute the environment, which is why waste catalysts must be stored in an oxygen-free environment to keep them sealed. .
Used catalysts contain metal sulfides such as iron sulfide; these sulfides are easily oxidized when in contact with air to form metal oxides, releasing a large amount of heat in the process. The sulfur oxides produced also pollute the environment. Therefore, used catalysts should be stored in a sealed condition, isolated from air, after being removed from use.
Used catalysts contain metal sulfides such as iron sulfide, and these sulfides are easily oxidized when in contact with air; the resulting sulfur oxides have an impact on the environment. Therefore, used catalysts should be stored in a sealed container, isolated from air.
Used catalysts contain metal sulfides such as iron sulfide, which are easily oxidized when in contact with air to form metal oxides, releasing a large amount of heat in the process. The sulfur oxides generated also pollute the environment; therefore, used catalysts should be stored in a sealed condition, isolated from air, after being removed from use.
Used catalysts contain metal sulfides such as iron sulfide; these sulfides are easily oxidized when in contact with air to form metal oxides, releasing a large amount of heat in the process. The sulfur oxides produced also pollute the environment. Therefore, used catalysts should be stored in a sealed container, isolated from air, after being removed from use.
Passivation treatment should be carried out before removing the agent, so as to form a passivation film for storage and to prevent the catalyst from deteriorating naturally
Used catalysts contain metal sulfides such as iron sulfide; these sulfides are easily oxidized when in contact with air to form metal oxides, releasing a large amount of heat in the process. The sulfur oxides produced also pollute the environment. Therefore, used catalysts should be stored in a sealed condition, isolated from air, after being removed from use.