Scrubber - Marine environmental technology to clean vessel emissions

Regulations put pressure on shipping industry

To protect the environment, the International Maritime Organization (IMO) has set a limit of 0.5% for sulfur dioxide in fuel emissions. The international shipping industry must meet these environmental standards by 2020. According to the German Shipowners' Association (VDR), some 50,000 vessels are affected by the new sulfur emission limits.

Bifinger scrubber customer added value

Scrubber – the most economical solution

As an industrial services provider, we have more than 40 years of experience in desulfurization technology. In recent years, the company has transferred its power plant flue-gas desulfurization expertise to maritime applications. With the installation of scrubbers, sulfur emissions from the vessel's exhaust gases are reduced to below the required levels, thus allowing strict environmental requirements to be met.

OUR CUSTOMER PROMISE: BILFINGER’S SCRUBBER SOLUTIONS REDUCE SULFUR DIOXIDE CONCENTRATION IN THE EXHAUST GAS EMITTED BY HEAVY OIL TO BELOW REQUIRED LEGAL LIMITS.

Scrubber technology delivers tangible added value

  • Short amortization period
  • Low operating costs through low consumption of fresh water and energy, reduced loss of plant pressure, high corrosion resistance as well as low maintenance requirements
  • Optimal use of space due to extremely compact design
  • High level of environmental-friendliness through innovative process water cleaning
  • High system reliability through the redundant layout of main components
  • Well-engineered concept for the transfer of exhaust gas also for multistream-applications

The process behind scrubbers

Scrubbers remove sulfur emissions from exhaust gases produced by main engines, auxiliary diesel engines and boilers. The exhaust gases are introduced into the side of the scrubber and brought into contact with seawater. Different scrubber processes are available to shipping companies:

  • Open Loop: Sulfurous exhaust gases are cleaned by the natural alkalinity of the seawater in a continuous process. The bleed off water is discharged into the sea in accordance with IMO regulations.

  • Closed Loop: The scrubber operates as a closed circulation process by supplying an additive for chemical (SO2) separation to the wash water. As with the open-loop operation, the bleed off water can be discharged or stored in a tank. In this way, waste water release in specially protected areas can be entirely avoided.

  • Hybrid Procedure: A combination of open- and closed-loop procedures within a single scrubber unit.

Our two different system concepts allow flexibility also during execution: The scrubber can be implemented as single line or multi stream.

 

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Pilot project with the vessel M/T AURELIA of CARL BÜTTNER SHIPMANAGEMENT

Lars Bremer,
Managing Director of Carl Büttner Shipmanagement:

"With Bilfinger, we have gained a highly competent and reliable partner for exhaust gas cleaning. The economic advantages of the scrubber technology and Bilfinger's many years of experience have convinced us".

Scrubber system and operation

Scrubber system and operation
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