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- Title
EXPERIMENTAL INVESTIGATION OF SEAWATER SCRUBBING OF SO2 IN TURBULENT CONTACT ABSORBERS AND SPRAY ABSORBERS.
- Authors
YIPING MA; LEPING XU; JUNFENG ZHOU; KAILIANG YANG; GUOXIANG LI
- Abstract
The SOx emissions of the marine engine are regulated by international maritime conventions. In this paper, the effect of various parameters, including SO2 partial pressure, liquid to gas ratio (L/G), alkalinity and pH, was investigated by seawater scrubbing experiment in a turbulent contact absorber (TCA) and a spray absorber (SA) on a laboratory scale. The experimental data showed that the desulfurization efficiency of TCA was mainly dependent on the value of L/G and irrelevant to the changing way of L/G; the appropriate L/G of TCA was 2.3 dm³/m³ and pH of effluent water was 2.4-2.8 at the L/G of 1.1-2.8 dm³/m³. Comparatively, the desulfurization efficiency of increasing liquid flow rate was better than that of decreasing gas flow rate in the SA experiment. At the gas velocity of 1.58 m/s and L/G of 2.3 dm³/m³, the desulfurization efficiencies and drop pressures of TCA and SA were 75.9% and 42.4%, 690 and 260 Pa, respectively. The results indicate that TCA chosen as an absorber is likely to be a competitive desulfurization technique for controlling marine diesel emission.
- Subjects
MARINE engine emissions; DIESEL motor exhaust gas; PARTIAL pressure; GAS flow; SULFUR dioxide; SEAWATER
- Publication
Environment Protection Engineering, 2019, Vol 45, Issue 3, p39
- ISSN
0324-8828
- Publication type
Article
- DOI
10.5277/epe190303