Can a catalyst be quenched rapidly?
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This post was last edited by Someone on 2016-3-3 23:21. I would like to ask the experts here: is it possible in a refinery to rapidly cool solid catalysts at temperatures of six to seven hundred degrees down to sixty to seventy degrees? What I’m asking isn’t whether it’s possible in theory, but whether it’s feasible in actual production~ Replies are welcome; thank you all~ As a bonus, by “quick,” I mean within ten to twenty minutes
I’ve never heard of this before. I wonder what the original poster intends to use it for; we reduce production gradually when shutting down operations
I specifically searched Baidu for the definition of thermal collapse: \"The phenomenon in which water vaporizes rapidly when it comes into contact with a high-temperature catalyst, causing the catalyst particles to break apart, is called catalyst thermal collapse.\" ” So can thermal runaway occur without water?
I’m wondering whether carbon regeneration by burning can be used after the catalyst becomes deactivated in the carbon tetraalkylation using solid acids. The carbon tetraalkylation reaction takes place at low temperatures; if a circulating fluidized bed is used, it is necessary to rapidly lower the catalyst’s temperature to that of the reaction. It’s not clear whether such rapid cooling can be achieved
Even if it’s theoretically possible, the requirements for the material of the equipment could be very high, after all, such a significant temperature drop is needed in a short period of time! Although a thermal collapse in the sense you understand it will not occur, such a large temperature difference can still cause significant structural damage to catalysts based on alumina.