Control of the stripping steam volume in the settler
Thread Content
For a given device, under normal production conditions with all other parameters unchanged, what is the relationship between the regeneration temperature and the amount of stripping steam? Will increasing the stripping steam volume lower the regeneration temperature?
The relationship between the amount of gas vapor and the regeneration temperature is such that when the amount of gas vapor is too low and the effect of the raw catalyst gas is poor, the regeneration temperature increases. Generally, the amount of gas vapor is 0.35% of the catalyst circulation rate
Generally, once the operation is stable, it is necessary to adjust the amount of steam to the minimum required flow rate; the steam volume is gradually reduced until the temperature of the regenerator rises and the flow rate increases to more than 10% of the minimum value. If there are significant changes in operating conditions that affect the catalyst circulation rate, corresponding adjustments must be made. Typically, 1.5–2 kg of steam is required per 1 ton of catalyst.
I don’t think so, unless it’s thermally deactivated...
When there is little stripping steam, the amount of oil and gas on the catalyst is high, and the temperature during regeneration is high. When the stripping volume is high, the temperature drops slightly; upon further increase, there is no change. It instead increases waste
Generally, the stripping volume is not adjusted once normal fluidization is ensured; changes in the stripping volume (provided that the inventory levels in both vessels are maintained) have little impact on the temperature.
There must be a relationship; the amount of stripping steam, as long as it remains within its limit, is inversely proportional to the bed temperature. But once the load limit is exceeded, continuing to increase the steam volume only has a reverse effect