Ten minutes later, the alarm fell silent. The plume at the top of the stack turned from a ghost of a haze to invisible, clean air. Elias leaned against the steel railing, the heat of the tower radiating against his back, and smiled.
To design a functional packed bed scrubber for hot gases, follow these steps: Gas Saturation & Flow Correction
Account for the high moisture content of quenched gas by sizing a chevron or mesh mist eliminator at the top of the tower to prevent liquid carryover. scrubber design calculation excel hot
Usually higher in hot applications to provide necessary cooling capacity.
=SCFM * ((T_sat_F + 460) / 520) * (14.7 / Operating_Pressure_psia) * (1 + Mole_Fraction_Evap_Water) Use code with caution. Step 3: Calculate Column Diameter Once you establish the design gas velocity ( Vdesigncap V sub d e s i g n end-sub in ft/s) from your flooding curves: =SQRT((4 * (Quenched_ACFM / 60)) / (PI() * V_design)) Use code with caution. 4. Best Practices for Hot Gas Scrubber Sheets Ten minutes later, the alarm fell silent
For a hot gas stream entering a well-insulated scrubber (adiabatic), the gas will cool to the (wet-bulb temperature), assuming sufficient liquid flow and residence time.
[ C = 1 + \frac0.000621 \cdot T_gd_p \times 10^6 ] To design a functional packed bed scrubber for
Sums the packing pressure drop, mist eliminator resistance, and ductwork losses. Fan Motor Power ( Pfancap P sub fan end-sub ):
The humidity ratio of the gas increases drastically due to the evaporated liquid.