AUGUST 30, 2016 — DuPont, through its subsidiary Belco Technologies Corporation (Belco), reports the first installations of its proprietary in-line, multi-engine marine scrubber serving three auxiliary engines on two newbuild bulk carriers.
AUGUST 9, 2016 — Jork, Germany, headquartered shipowner Reederei H.-P. Wegener is reporting major fuel cost savings using Alfa Laval PureSOx exhaust gas cleaning systems. The company’s four container feeder vessels, include
JULY 7, 2016 —Dupont (NYSE:DD) subsidiary Belco Technologies Corporation, Parsippany, NJ, has been awarded a contract to supply DuPont Marine Scrubbers for two additional Interlake Steamship Company ships. Interlake has now contracted
Buss Shipping operates 20 feeder ships and has a strong chartering business. To meet the requirements of today’s charter market, the company is focusing on the sustainable modernization of its existing fleet.
As a key step in this process, hybrid Alfa Laval PureSOx systems will be retrofitted on board the vessels Condor and Corsar. Both 1,025 TEU feeder ships operate exclusively in Emission Control Areas (ECAs).
Since they operate in the low-alkalinity waters between Rotterdam and St. Petersburg, as well as ports like Hamburg with zero-discharge requirements, a scrubber with closed-loop mode was a necessity.
“The hybrid PureSOx systems on the Condor and Corsar will provide emission compliance with maximum flexibility and fuel economy,” says Torben Kölln, Managing Director, Buss Shipping. “This will uphold the competitiveness of our offer to charter customers.” Custom engineering for the ideal solution
The Condor and Corsar will each receive a hybrid PureSOx system with multiple inlets, connecting the main engine and two auxiliary engines to one U-design scrubber. In contrast to earlier systems with multiple inlets, the inlets will now lead into a single scrubber jet section – an advance in construction that will make the scrubber even more compact.
“The PureSOx solution was well engineered and allowed a sophisticated integration of the scrubber system into our container feeder ships,” says Christoph Meier, Project Manager, Buss Shipping. “The custom construction let us avoid major modifications inside the vessel, which together with the pre-outfitting gave us a short installation time. All those factors contributed to a competitive price.”
For the engineering of the PureSOx systems, Buss Shipping GmbH & Co. KG cooperated with SDC Ship Design & Consult GmbH.
Detailed engineering was handled by the shipyard German Dry Docks GmbH & Co. KG, which will install the systems following deliveries by Alfa Laval in January and February 2016.
“The work between Buss Shipping, Alfa Laval, the shipyard and the engineering consultant has been smooth and productive,” says Mark Aarbodem, Project Manager at Alfa Laval. “Alfa Laval’s scrubber design and project management experience, together with the strong cooperation from the rest of the team, will ensure a reliable outcome for Buss Shipping.”
“All parties have worked together to arrive at a compliant solution that will benefit our charter operations,” says Mr. Kölln. “Rather than paying for expensive fuel, our container vessels will be able to serve charter customers at a competitive price – while still retaining our margins.”
Alfa Laval PureSOx has more reference installations than any other single SOx scrubber technology, and is already a leading choice for SOx compliance in Emission Control Areas (ECAs).
“Through open-loop, closed-loop and hybrid arrangements, PureSOx can be suited to any vessel’s sailing profile,” says René Diks, Manager Marketing & Sales, Exhaust Gas Cleaning at Alfa Laval. “By adding an inline scrubber design to the already flexible PureSOx platform, we’ve made PureSOx even easier to adapt to individual vessel constructions.”
The inline scrubber design, or I-design, builds directly on the proven PureSOx technology. It provides an additional alternative for vessels with more complex structural needs, such as certain cruise ships and RoPax vessels.
“While inline configurations should not be seen as a default,” says Mr. Diks, “they can make it easier to accommodate the specific challenges of certain vessels.”
An important consideration in creating an inline PureSOx scrubber was the water trap, which is not formed naturally as it is in the existing U-design.
“Because the absorber section is located atop the jet section in the I-design, no water trap is created between the two,” says Mr. Diks. “A key focus was eliminating the potential for water backflow, which is done by means of an internal water trap combined with overboard arrangements.” As with the U-design PureSOx scrubber, the I-design scrubber can be configured with multiple inlets. This reduces space needs and installation costs by allowing one scrubber to handle exhaust gas from multiple sources, including boilers as well as the main and auxiliary engines.
A further alternative for inline PureSOx configurations is reflux. This option is especially attractive for cruise ships, RoPax vessels and other vessels that carry passengers, as it reduces the risk of dirty water droplets discoloring the ship’s deck.
Reflux involves the creation of two separate loops: one for the jet and a second for the absorber. In the jet loop, clean water is evaporated by means of the waste heat in the exhaust gas. The vapor is then recondensed as clean water in the absorber loop. As a result, the water in the absorber stage is significantly cleaner and the risk of deck discoloration is greatly reduced. Since the soot is concentrated in the initial jet stage, the water cleaning unit has a lighter burden as well.
The water cleaning unit is a vital component of any closed-loop or hybrid PureSOx system. When the scrubber is in closed-loop mode, the unit removes soot from the circulation water, thus protecting the scrubber and enabling compliant discharge of bleed-off.
The PureSOx water cleaning unit uses centrifugal separation, an Alfa Laval core technology, that is completely unaffected by pitch and roll. This sets it apart from other cleaning systems on the market. Like the reflux principle, it is a patented solution unique to Alfa Laval.
“The water cleaning unit is one of many aspects that make PureSOx such a reliable choice for SOx compliance,” says Mr. Diks. “The PureSOx platform is built on a solid foundation of Alfa Laval core technology and scrubber experience, and the new possibility of inline configurations will give even more shipowners reason to choose it.”
Instead, when ordering a newbuilding they may prefer to order a ship that is “SOx scrubber ready.”
Classification society ABS says that, Iin order to facilitate future modifications, ship buyers and shipbuilders must make a significant effort to figure out what features should be incorporated on a vessel and incorporate these in the shipbuilding contract.
To support shipowners taking this path, ABS has published the ABS Guide for SOx Scrubber Ready Vessels to support members and clients in preparing newbuilds for future outfitting with a SOx exhaust gas cleaning system (EGCS).
The guide supports the ABS classification notation for SOx Scrubber Ready Vessels by formalizing the process for clients who wish to plan for retrofit of a SOx scrubber at a future date by providing a detailed review and approval and an associated notation.
The SOx Scrubber Ready notation is in addition to ABS EGCS notations that may be assigned for vessels fitted with an exhaust emission abatement system, including SOx scrubbers, selective catalytic reduction systems and exhaust gas recirculation arrangements for NOx emission control, in accordance with the ABS Guide for Exhaust Emission Abatement.
JUNE 18, 2015 — Wärtsilä is to supply hybrid scrubber systems for three 2,500 TEU containerships on order at Chinese shipbuilder Jinhai Heavy Industry for a major European owner. Scheduled for delivery
JUNE 10, 2015 — An exhaust gas cleaning system based on DeltaLangh scrubber technology has received confirmation of full compliance with SECA and IMO regulations from Lloyd’s Register and TRAFI, the Finnish
JUNE 10, 2015 — An exhaust gas cleaning system based on DeltaLangh scrubber technology has received confirmation of full compliance with SECA and IMO regulations from Lloyd’s Register and TRAFI, the Finnish
FEBRUARY 3, 2015 — Parsippany, NJ, headquartered CR Ocean Engineering (CROE) has won an order from Finland’s Bore Ltd for a state-of-the-art exhaust gas cleaning system that will use seawater to reduce