Why is water injected into catalyst used in CRU operations?
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01/05/2018
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Krishna Rao Pulugurti, Retired/Consultant, pkrao2012@yahoo.com
After regeneration, caralyst becomes dry. Dry catalyst leads to cracking of hydrocarbons. Gas formation would be high. Reformate yield would be low. So water is injected into the catalyst. Sometimes instead of water, alcohols such as methanol is injected which also forms water.
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01/05/2018
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Virendra Kapoor, Petroleum Refining Consultants, vkkapoor9@yahoo.com
Injection of water is done very carefully after proper evaluation. The reaction should not be done in bone state. The dispersion of chloride all along the beds is important for process activity and maintain selectivities. Water injection in limited proper quantity helps the process. If wrongly decided, it may have adverse effects.
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30/04/2018
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Ralph Ragsdale, Ragsdale Refining Courses, ralph.ragsdale@att.net
For the reforming catalyst to maintain its activity, there needs to be a certain level of water and a certain level of chloride on the catalyst itself.
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