Carl Büttner Shipmanagement will be using innovative exhaust gas purification technology from SAACKE
Carl Büttner Shipmanagement GmbH & Co. KG in Bremen, specializing in the operation of oil and chemical tankers, has selected SAACKE GmbH for the implementation of an innovative exhaust gas purification system. Since October this year, the SAACKE LMB Scrubber will be installed in the four-year-old 140 meter long tanker MT Levana. Completion is scheduled for November 2013. The new plant will pay for itself after about 2 years. The increasingly demanding exhaust gas emissions standards for sea travel make the refitting mandatory for the tanker company. The scrubber is a more economical alternative to a fuel switchover. The unique characteristic of the SAACKE solution is the upstream soot separation, which avoids the usual production of sludge, which is difficult to process.
Starting 2015, fuel will be subject to limit values of 0.1 percent sulphur on the North Sea and theBaltic Sea. The limit will gradually be lowered across the globe down to 0.5 percent by 2020. The majority of ships currently in operation are driven by heavy oil with a high portion of sulphur. In addition, the fuel on board is also used to create warm water or steam. Both processes create exhaust gases that contain soot and sulphur oxides and are harmful to the environment. Refitting existing ships to run on alternative fuels is either impossible or extremely difficult, which is a sizeable problem. “In contrast, due to the compact design of the LMB Scrubber from SAACKE, most ships can be easily refitted and the system significantly undercuts the required limit values”, explains Gerhard Heißenbüttel, Head of Maritime Competence Centre at SAACKE.
Soot separation using a dry process and 99 percent sulphur reduction
The SAACKE solution uses a patented ventilator unit, the so-called VentSep, as well as a desulfurizer and a special filter unit. By separating the soot using a dry process, 80 percent of the fine particles are separated. The majority of the soot produced – which is up to 200 kilograms per day – thus doesn’t make it into the spray nozzle filter and is therefore not mixed in with the sludge, but instead collected in a dry way and disposed of or processed on shore. 99 percent of the sulphur particles in the exhaust gas are filtered by a spray nozzle scrubber using an atomized water spray and a water cascade. There is now a 1-MW test plant for the scrubber at the Viktor Lenac shipyard inCroatiawhich can be used for crew training or viewed by interested clients after consultation with SAACKE.
SAACKE GmbH was founded in 1931 as CSÖ Carl SAACKE Ölfeuerungsgesellschaft mbH. The company introduced its first burner for marine use to the market in 1934. The company is now one of the leading specialists for combustion engineering and complete plant systems. Annual sales were in 2011 around EUR 184 million. The company employs about 1,100 staff worldwide, including 300 engineers. The head office inBremen is home to both the production facilities and the development centre.
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