Absorption of Gases by Liquid Droplets Design of Simple Spray Scrubbers

Abstract

Design of Simple Spray ScrubbersMeasurements on the rates of absorption of several gases by falling drops of various sizes and at different gas velocities are re-

Fate of ammonia in the atmosphere?a review for applicability to hazardous releases

“…• The same authors [102] re-examining earlier kinetic data developed by Johnstone and Williams [103] who used larger droplets (2-5 mm), higher ammonia concentrations (1-5%, v/v), and droplets with acid concentration of up to 12% concluded that the overall reaction rate was controlled by gas-phase diffusion and that every collision of ammonia with the surface resulted in reaction. the course of the subsequent reactions.…”

ENGINEERING AND PROCESS DEVEILOPMENT Performance Characteristics of Spray-Type Absorption

“…Thus, spray chambers have been used frequently for cooling water by evaporation (3,21), but their use for large scale absorption or distillation operations has been discussed only occasionally (4,IS,16). Several laboratory studies have been reported, however, mostly involving small apparatus {14, 15,17,22). Although extensive and reliable data have been published on rates of mass transfer to gases outside {9,15, 29) and inside {5, 11) single droplets, these data are of little use for the design of spray chambers unless the number and sizes of the drops which are found in the chamber at any instant can be estimated.…”

Heat and mass transfer to decelerating finely atomized sprays

“…This means that the internal drop circulation which undoubtedly occurs has no effect on the drag coefficient. Hence it may be concluded that liquid sprays will behave in the same manner as solid sprays and this has been experimentally verified (102,104 Few workers have oonsidered the possibility of a modification of the drag coefficient due to particle acceleration or deceleration.…”