Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Absorption Column Height Calculator

Determines the required packed bed height for a gas absorption column based on gas flow rate, inlet/outlet concentrations, and mass transfer coefficient. Used by chemical engineers designing scrubbers and stripping columns.

Gas Flow Rate (m³/h)

Inlet Gas Concentration (mol/mol)

Outlet Gas Concentration (mol/mol)

Overall Mass Transfer Coefficient (kmol/m³·h)

Fill in the required fields to see your result.

Chemical Engineering

Gas Absorption Column Design Calculator

Design a packed gas absorption column by calculating the number of overall gas-phase transfer units (NOG) and total column height needed to achieve a target gas-phase separation. Used in scrubber design for air pollution control and chemical processing.

Inlet Gas Concentration (Y₁) (mole fraction)

Outlet Gas Concentration (Y₂) (mole fraction)

Henry's Law Constant (atm·L/mol)

Liquid to Gas Ratio (L/G)

Height of Transfer Unit (HOG) (ft)

Fill in the required fields to see your result.

Key differences

	Absorption Column Height Calculator	Gas Absorption Column Design Calculator
Category	Chemical Engineering	Chemical Engineering
Inputs required	4	5
Result	Packed Column Height (m)	Required Column Height (ft)
What it does	Determines the required packed bed height for a gas absorption column based on gas flow rate, inlet/outlet concentrations, and mass transfer coefficient. Used by chemical engineers designing scrubbers and stripping columns.	Design a packed gas absorption column by calculating the number of overall gas-phase transfer units (NOG) and total column height needed to achieve a target gas-phase separation. Used in scrubber design for air pollution control and chemical processing.