Development of Analytical Model for SOx Removal by Marine SOx Scrubbers and of Small Scrubbers

Ma Xiao, Masuda Akiko, Kimura Arata, Niki Yoichi, Hirata Koichi

doi:10.5988/jime.57.104

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Other Title

舶用SOxスクラバにおけるSOx除去解析モデル構築と小型スクラバの開発
ハクヨウ SOx スクラバニオケル SOx ジョキョカイセキモデルコウチクトコガタスクラバノカイハツ

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<p> Sulfur oxide (SOx) affects environment, for example, in the form of acid rain. Marine SOx scrubbers are used to remove SOx in exhaust gas from ships when using fuels with high sulfur content. The SOx scrubbers require a relatively large space for installation and are difficult to apply to small vessels. In this study, we developed a simplified model applicable to calculating changes in SO₂ concentrations in SOx scrubbers with the aim of developing smaller SOx scrubbers. Our model is based on the steady state one-dimensional equations in the flow direction. In order to simplify the complex physics, the model assumed a uniform flow for exhaust gas and spray droplets absorbing SO₂. The performance of desulphurization of the prototype small scrubber was evaluated by comparing the results of desulfurization experiments using actual engine exhaust gases with those of model calculations. As a result, it was shown that the developed scrubber can achieve sufficiently high desulphurization performance to meet regulations.</p>

Journal

Marine Engineering

Marine Engineering 57 (1), 104-114, 2022-01-01

The Japan Institute of Marine Engineering

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