External gas mixing pipe for liquid-gas contacting unit

Abstract

The present invention relates to a liquid-gas contacting unit comprising a column, at least a lower packed bed and a higher packed bed positioned higher than the lower packed bed inside the column, a gas-tight liquid collecting and redistributing device disposed between the lower and the higher packed bed inside the column and an external pipe outside the column, the external pipe comprising an inlet end, an outlet end and a peripheral wall between the inlet end and the outlet end; the inlet end being positioned between the lower pack bed and the gas-tight liquid collecting and redistributing device and the outlet end being positioned between the higher pack bed and the gas-tight liquid collecting and redistributing device. The present invention also relates to a method for improving the efficiency of a liquid-gas contacting unit.

Dependencies are inferred from the claim text.