Temperature difference before and after the catalyst feed oil nozzle
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What is an appropriate temperature difference before and after the feed oil nozzle in a riser reactor? Is it closely related to the ratio of the agent oil? (660°C in front of the nozzle, 500°C behind it – isn’t the temperature difference a bit large?) I hope to receive guidance from all the teachers. Thank you!
It’s the temperature of the mixture of catalyst and steam right in front of the nozzle! After the nozzle lies the temperature of the catalyst oil-gas and steam! It’s definitely too low!
This temperature difference of yours is normal; we have the same temperature here. Do you have a catalyst cooler? It’s important to pay attention to the density in the pre-raising stage and to control the reaction temperature properly
We generally keep the temperature at 670℃ in front of the nozzle, and around 520℃ behind it! It is related to whether a catalyst cooler is installed or not!