I would like to ask: How is the inventory in the stripping section of a catalytic unit calculated?
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How is the inventory in the stripping section calculated? Is it based on both the catalyst residence time and the driving force of the raw slurry inclined tube? Could any senior member give some guidance? Thank you.
The value in Kpa is obtained from the pressure drop measured by the gauge on the reserve meter, and this value is used to calculate the cross-sectional area of the stripping section, which is ring-shaped. Multiplying the area by Kpa gives the weight of the catalyst.
The instrument measures the general pressure drop, which is then transmitted to a computer where the density is displayed. Once the density is known, and if the height and cross-sectional area of the stripping section are also known, the volume of material can be calculated
Calculated by integrating and summing the density and the horizontal cross-sectional area of the stripping section. Does the poster want to calculate it by themselves? Still, how is it calculated on DCS?
The plant has started operation. The reserve amount provided by the design institute is on the high side; I’d like to review it :) I want to know how the calculation should be done during the design phase
What I want to know is not how to calculate it during production, but rather how to do it during the design phase. I’d like to review the startup guidelines before the device starts operating
What I want to know is not how to calculate it during production, but rather how to do it during the design phase. I’d like to review the startup guidelines before the device starts operating
For the calculation process, I trust the design institute’s calculation capabilities. Have you considered whether it is due to inaccurate measurements of density and pressure difference?
It is calculated based on the density, cross-sectional area, and height of the stripping section. Design institutes usually specify a range of densities, and calculations are then carried out using those equipment dimensions. Production staff, on the other hand, calculate using the density measured by instruments as well as the height difference at the pressure measurement points; this results in lower calculated values