Regarding charring in the pyrolyzer
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Let’s discuss the control temperatures for coking in various ethylene plants, the duration of coking, and the criteria for determining whether coking is successful.
We have the LUMMUS-Type 4 and CBL-11 types, with a charring temperature of 850–870 degrees over 48 hours. At first, we analyzed the contents of monoxide and dioxide, but we stopped doing that later on. Some devices have been subjected to high-temperature charring at 880–900 degrees for 24 hours, which improves the furnace’s operational rate; that’s good.
In Daqing, models 870–890 are used to analyze carbon monoxide and carbon dioxide on a 24-hour basis
Everyone actively participated in discussing the charring of their own devices