A new approach for estimating the effective froth height on column trays

[Display omitted] •A new approach for estimating the effective froth height on column trays is proposed.•The approach is applied on the two-phase data recorded by conductivity probes.•How to identify the liquid-continuous regions in the froth dispersion is explained.•The effective froth height distributions are reported for selected tray loadings. The present work proposes a new approach for measuring the effective froth height on column trays. This approach is applied on the two-phase dispersion data gathered by a novel multi-probe sensor installed inside a large-scale tray column mockup. A physical explanation of the proposed approach describes how to distinguish between the liquid-continuous and gas-continuous regions in the froth. Accordingly, the effective froth height distributions are reported for selected tray loadings.