Studies of gas absorption: III. Gas phase resistance to gas absorption in scrubbers

A modified Sherwood‐Gilliland equation for mass transfer in the gas phase is applied to gas absorption in scrubbers. The equation can be written in the following dimensionless form: where the dimensionless groups have the following significance The equation is checked on the available data in the literature and on experiments by the authors. The “constant” c appears to depend on the ratio: {article}{empty}{document}d h\, = \, diameter\, of\, packings height\, op\, packed\, column{document} this function may be approximated by the relationship: {article}{empty}{document}c = c₀ ( d h )1/3 .{document} For wood grid packing the average value of co is 0.35; for rings and other packings there seems to be a trend to smaller co‐values at smaller packing sizes.