In creating new and upgrading existing processes and equipment of gas and oil sector, main part is played by diffusion process calculation (absorption, desorption, extraction, rectification, dissolution) in which one has to be able to determine diffusion factors, average length of molecule free run, frequency of mole bouncing in gas and liquid. This issue suggests approximate dependences for these parameters engineering calculation.
gas
pressure
migration
diffusion
length
liquid
molecule
factor
velocity
bouncing
run
penetration
temperature
frequency
