Scrubber Design | Calculation Excel Hot

Wet Scrubber: Efficiency Сalculation, L/G Ratio, and Pressure Drop

This is the heart of the scrubber design. It calculates how tall the column must be to achieve the required removal efficiency.

Inlet vs. required outlet (to calculate required efficiency).

$$ \Delta P = \fracu_t^2 \times L \times \rho_l1000 \times C_d \quad \text(Simplified units) $$ scrubber design calculation excel hot

$$ \textMolar flow rate of SO2 = 10,000 \times 500 \times \frac110^6 \times \frac122.4 = 223.2 , \textmol/h $$

The velocity at the scrubber throat ($u_t$) is the primary driver of collection efficiency. As hot gas accelerates through the throat, liquid is injected and atomized into fine droplets. The relative velocity between the gas and the droplets creates inertial impaction, capturing particles.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. required outlet (to calculate required efficiency)

For high-temperature, dirty gases, the Venturi scrubber is king. The classic for pressure drop (ΔP) is: ΔP = 1.03 * v_g^2 * (L/G) * (ρ_l/ρ_g)^0.5

Embed an XLOOKUP table: | Max Temp (°C) | Material | Corrosion Allowance | | :--- | :--- | :--- | | 70 | PP (Polypropylene) | 3 mm | | 150 | FRP (Vinyl Ester) | 5 mm | | 400 | SS316L | 2 mm | | 900 | Refractory lined CS | 0 mm |

The first step in any scrubber design is determining the actual volumetric flow rate of gas at the scrubber inlet conditions. For a given standard flow rate (Nm³/h) at 0°C and 1 atm, the actual flow rate at temperature (T) (in K) and pressure (P) (in atm) is: The relative velocity between the gas and the

Generate a clean, printable dashboard summary. This should highlight key outputs needed by procurement or manufacturing teams: Final Column Diameter (ft or mm)

In Excel, the Eckert or Sherwood flooding correlation can be approximated using curve-fitted polynomial equations to find the flooding coordinates on the Y-axis:

. Using Excel allows for iterative modeling of these complex thermal and chemical interactions. www.mchip.net Core Design Parameters

If T_out_gas > 70°C , the Excel sheet should automatically highlight "Material Risk: Upgrade to SS316L."

[Download the Pro-Tier "Hot Gas Venturi Scrubber Calculator" Excel Template (VBA Enabled)] – Includes psychrometric loop, material selector, and 3D output chart.