On the dilute-phase density of the catalytic regenerator and the inlet density at one swirl point
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Hello everyone. My catalytic unit has a capacity of 800,000 tons per day and its regenerator is equipped with seven sets of centrifuges. I would like to ask what the typical lean-phase density in the regenerator and the density at the inlet of each centrifuge is We have densities of 16–20 kg/m3 and 1.8–3 kg/m3. At what density level do these substances generally start to leak? Another thing I’d like to ask is: what common abnormalities do regenerators typically experience? My current problem is local overheating in the dilute phase! This post was last edited by Shuichangshou on 2009-2-6 11:38.]
We are a high-low parallel setup. The dilute-phase density in the regenerator is around 86 kg/m3, while the density at the inlet of the primary centrifuge is around 8.5 kg/m3.
We are a high-low parallel setup. The dilute-phase density in the regenerator is around 90 kg/m3, while the density at the inlet of the first stage centrifuge is around 5 kg/m3
Local superheating in the dilute phase may be caused by secondary combustion of CO; a CO fuel additive can be added. It is important to monitor bed temperature, inventory level, and oxygen content to ensure effective burning and complete combustion of CO in the dense-phase bed. Additionally, secondary combustion affects the dilute-phase density and the density of the liquid at the cyclone outlet. This post was last edited by zzh030972 on 2009-2-7 13:21.]
In our coaxial design, the sparse-phase density of the regenerator is around 30 kg/m3, while the density at the inlet of the first stage separator is approximately 8 kg/m3. The system is operating well; initially we suspected that the measurements were inaccurate, but it seems that local overheating occurs due to uneven distribution of the main air flow, or an excessive amount of air being supplied from outside
Local superheating in the dilute phase may be caused by secondary combustion of CO; a CO oxidizer can be added
Oh, so there’s such a big difference! However, according to investigations, the density at the inlet of the centrifuge is generally in a 1:10 ratio to the density in the dilute phase; but this ratio does not apply in the case of the unit on the 5th floor. It seems that centrifuges have a relatively wide tolerance regarding the density at their inlet!
We use a parallel high-low configuration; the density of the catalyst at the inlet of the first spin varies depending on the total amount of catalyst stored in the system, generally being below 3 kg/m3. When the total storage amount is low, the density at the inlet of the first spin is also lower.
We use a parallel high-low configuration; the density of the catalyst at the inlet of the first spin varies depending on the total amount of catalyst stored in the system, generally being below 3 kg/m3. When the total storage amount is low, the density at the inlet of the first spin is also lower.