Study on seawater scrubbing for SO2 removal from ship's power plant exhaust gas

• Autorzy: Ma Yiping , Xu Leping , Su Penghao , Feng Daolun , Yang Kailiang

Identyfikatory

DOI

10.37190/epe200103

• Języki publikacji: EN

Abstrakty

EN

The mechanism of SO₂ absorption in seawater is investigated, and the experiment was carried out accordingly. Emphasis is on applications of seawater scrubbing of ship’s power plant exhaust gas containing SO₂. The formulated model is used to predict the influence of various parameters on both pH of tailwater and seawater desulfurization capability, e.g., the partial pressure of SO₂, the partial pressure of CO₂, tailwater temperature, pH and alkalinity of seawater. Experiment results indicated that the seawater desulfurization capacity increases with both increasing partial pressure of SO₂, pH and alkalinity and decreasing partial pressure of CO₂ and temperature. The study shows the desulfurization capacity of seawater with 3.5% salinity is approximately twice that of freshwater. Different scenarios in which the required absorbent supply rate for a given SO₂ removal efficiency are studied. It is observed a 97% removal efficiency, corresponding to meeting the SO_x limits in the SO_x emission control areas (SECA) while operating on a heavy fuel oil containing sulfur 3.5 wt. %, requires a minimum water supply rate of 0.0407–0.0683 m³/kWh, depending mainly on the water composition in terms of alkalinity and salinity. Such data are important in assessing the operation cost of the water scrubbing system.

Słowa kluczowe

EN

sulfur dioxide; absorption; seawater

PL

dwutlenek siarki; adsorpcja; woda morska

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2020
• Tom: Vol. 46, nr 1
• Strony: 31--47
• Opis fizyczny: Bibliogr. 25 poz., tab., rys.

Twórcy

autor

Ma Yiping

• Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China

autor

Xu Leping

• Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China

autor

Su Penghao

• College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China

autor

Feng Daolun

• College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China

autor

Yang Kailiang

• College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).