New System for 80% Reduction of Marine NOx, SOx and PM

修身, 西田; 浩嗣, 藤田; 亘, 原野; Hendratna, Kartika Kus; Ariana, I Made; 良, 川添; めぐみ, 冨士尾

doi:10.5988/jime.44.95

Cited by 1 publication

(1 citation statement)

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“…However, there are still unsolved problems, such as the need for an extensive installation area on ships and a large amount of seawater. To improve the SOx removal efficiency, Nishida et al investigated the technique of reducing SOx and NOx by alkali water and acid water generated by electrolysis of seawater [2]. Herrera et al conducted research on waste water disposal by coffee-based powder activated carbon on seawater scrubbers [3].…”

Section: Introductionmentioning

confidence: 99%

The effects of gas cooling on removal of SOF and sulphate by electrostatic precipitator for marine diesel

Zukeran¹,

Sakuma²,

Yamagami³

et al. 2014

WIT Transactions on Ecology and the Environment

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Particulate matters (PM), SOx and NOx in exhaust gases emitted from marine diesel engines may cause serious problems in human health and coastal environments. Therefore, their emissions have been regulated in MARPOL Treaty 73/78 Annex VI of IMO Air Pollution Control since 2005. In this paper, the reduction of PM for marine engines was investigated using an electrostatic precipitator (ESP) with a heat exchanger. Experiments were carried out to confirm the reduction of PM, which were Dry soot, Soluble Organic Fraction (SOF) and sulphate. The experimental system consisted of a diesel engine, a heat exchanger and an ESP. The exhaust gas at a temperature of 180°C was cooled to 20°C in the heat exchanger, whereby particles of SOF and sulfuric acid were generated due to condensation. These particles were collected in the ESP. The particle concentrations were measured using a low-volume air sampler, a soxhlet extractor and an ion chromatograph. As a result, the gaseous SOF was condensed to particulate matter due to gas cooling. This particulate matter was collected by ESP, whose removal efficiency exceeded 85%. The removal efficiency of sulphate was also improved.

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Section: Introductionmentioning

confidence: 99%