【Daily Question】10.28 True or False: The effect of sulfur on catalysts is temporary poisoning (Reply with +2 wealth)
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This post was last edited by Guan Gongyu on 2015-11-6 at 10:58. True or False: Under normal circumstances, sulfur has a temporary poisoning effect on catalysts; as the sulfur content in the feed oil decreases, the catalyst’s activity can be restored after some time of operation. However, if excessive sulfur is present for a long time, it can also cause permanent poisoning. ( ) @I am kind. Answer: Yes. Reward: +2 for a reply, +5 for being correct, +10 for participating in the activity. 1. [Petroleum and Chemicals Section] Show off your “SimSun” style – Registration page: http://bbs.hcbbs.com/thread-1469130-1-1.html 2. [Petroleum and Chemicals Section] Your own posting area: http://bbs.hcbbs.com/thread-1484021-1-1.html 3. [Petroleum and Chemicals Section] Thread for sharing ideas freely: http://bbs.hcbbs.com/thread-1482814-1-1.html 4. [Petroleum and Chemicals Section] I’m here among my peers – Survey on the basic information of members in the Petroleum and Chemicals Section: http://bbs.hcbbs.com/thread-1485340-1-1.htm
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Under normal circumstances, sulfur has a temporary poisoning effect on the catalyst; as the sulfur content in the feed oil decreases, the catalyst’s activity can be restored after operating for a certain period of time. However, if excessive sulfur is present for a long time, it can also cause permanent poisoning. ( √ )
Under normal circumstances, sulfur has a temporary poisoning effect on the catalyst; as the sulfur content in the feed oil decreases, the catalyst’s activity can be restored after operating for a certain period of time. However, if excessive sulfur is present for a long time, it can also cause permanent poisoning. (Correct)
Under normal circumstances, sulfur has a temporary poisoning effect on the catalyst; as the sulfur content in the feed oil decreases, the catalyst’s activity can be restored after operating for a certain period of time. However, if excessive sulfur is present for a long time, it can also cause permanent poisoning. (Yes)
Correct---------------------------------------------
Under normal circumstances, sulfur has a temporary poisoning effect on the catalyst; as the sulfur content in the feed oil decreases, the catalyst’s activity can be restored after operating for a certain period of time. However, if excessive sulfur is present for a long time, it can also cause permanent poisoning. (Yes)
Indeed, catalyst poisoning during reforming can be divided into reversible and irreversible types: sulfur poisoning or simple imbalances in water and chlorine levels can restore the catalyst’s activity through operational adjustments, but heavy metal poisoning is generally permanent; in cases such as arsenic poisoning, the only option is to replace the catalyst with a new one. In the case of heavy metal poisoning or severe poisoning, the activity of the catalyst becomes irreversible.