Exhaust Gas Cleaning System – Scrubbers
DeSOx exhaust gas purification systems (EGCS) to comply with the limitation of sulfur emission of 0.1% m / m IMO MEPC71.
Open Loop Mode
Sea water is used as the washwater to clean the exhaust gas. This simple process makes use of the natural alkalinity of the sea water pH is 7.8~8.3 in chemical absorption of the SOx. The treated exhaust gas can be released to the environment, and the effluent is also discharged in compliance with IMO requirement.
The chemistry of open loop mode:
Obsorption：SO2 + H2O → H+ + HSO3– (Ioization)
Neutralisation：2H++CO32-→H2O+CO2 ↑
Oxidation：HSO3– +1/2O2→HSO4–
Open loop mode application:
- Out of ECA.
- Opensea and 200 sea miles from land
Closed loop mode application:
- Within ECA
- Opensea
Closed Loop Mode
The washwater medium is sea water or fresh water, this mode is applied in low alkalinity or fresh water area. High concentration of NaOH is added to obtain a certain DeSOx capacity. The washwater is recycled and capable of zero discharge requirement. The power is less than that of open loop mode.
The chemistry of closed loop mode：
2NaOH+SO2=Na2SO3+H2O
Obsorption：SO2 + H2O → H+ + HSO3– (Ionization)
Neutralisation：Na++HSO3– →NaHSO3
Oxidation：HSO3– +1/2O2→HSO4–
Hybrid Mode
Hybrid mode is the combination of open and closed loop modes. In hybrid mode, it is possible to switch between these two processes depending on the condition of sea water alkalinity and discharge restrictions, etc. During open sea navigation, it would typically operate in open loop made to reduce caustic NaOH and washwater consumption. White close to port or ECA, it would typically operate in closed loop mode. This mode provides high flexibility and enables customers to choose the best solution both economically and technically.
INTERESTED IN ANY OF OUR Exhaust Gas Cleaning System PRODUCTS ?
Fill in the form to speed up the process and receive your offer sooner
- Responsable:Llalco Fluid Technology, S.L.
- Dirección del Responsable: C/ Natalia de Silva, 3 – 28027 Madrid
- Finalidad: Atender la petición realizada por el interesado a través del formulario.
- Legitimación: Trataremos sus datos cuando nos preste su consentimiento mediante la marcación de la casilla correspondiente.
- Destinatarios:Los datos no serán comunicados a terceros salvo obligación legal.
- Derechos: Acceso, rectificación, supresión, oposición y otros derechos detallados en la información adicional.
- Información adicional: puede ampliar esta información en la Política de Privacidad de nuestra página web.
