MARINIZATION OF A TWO-STAGE MIXED STRUCTURED PACKING SCRUBBER FOR SOX ABATEMENT AND CO2 CAPTURE.

Abstract

In this paper, a practical investigation to evaluate the impact of a two-stage mixed structured packing scrubber for SOx abatement and CO2 capture using amine solutions is presented. The practical test consists to connect the two-stage packing column to the diesel engine (DE) exhaust outlet. The first stage of the scrubber, fed with a sodium hydroxide solution, served as a SOX absorber, where the liquid flow rate and the sodium concentration are the operating variables. Gasses are then transported from the first stage to the second stage, where they encounter an amine solution that can be recycled in a closed loop to absorb residual CO2 streams. Tests are conducted with a 250kW diesel generator (DG) filled with a 0,5% Sulphur content fuel. Results revealed a significant decrease of SOX by an amount of 89% while CO2 capture has shown a decrease by an amount of 49%. However, drop pressure was detected when DG operates at high loads due to the fouling structured packing.