• 2018 July 17 14:23

    Jan De Nul launches ultra-low emission vessel Diogo Cão in China

    The 3,500 m³ Trailing Suction Hopper Dredger Diogo Cão was launched last Saturday at the Keppel Nantong shipyard in China, a subsidiary of Keppel Offshore & Marine, the Group said in a press release. This green vessel is the second of three 3,500 m³ hoppers to be launched, equipped with an exhaust gas treatment system filtering out and virtually eliminating many pollutants from the exhaust gases. In total, Jan De Nul Group ordered six such ultra-low emission Trailing Suction Hopper Dredgers, called Ultra-Low Emission Vessels, five of which are being built at Keppel: three small 3,500 m³, two medium-sized 6,000 m³ and a larger vessel at 18,000 m³.

    All six vessels are diesel-electrical powered, with engines allowing optimal use of generated power but with low fuel consumption and emissions. In addition, the vessels are equipped with a two stage highly efficient exhaust gas filter system, resulting in emissions complying with the European Stage V regulations for inland waterway vessels.

    “We are delighted to be leading the way in compliance with the most stringent global emission limits with the world’s first EU Stage V dredgers, which will be highly fuel-efficient, reliable, versatile and productive,” says Robby De Backer, New Building Director at Jan De Nul Group. “Their use will enable dredging projects to be completed with the lowest levels of emissions to date.”

    “As the new dredgers will frequently operate in estuaries, rivers and coastal areas near urban areas, we decided to limit the NOx emissions to a level 30% below the actual IMO Tier III requirements, and to reduce other potentially harmful contaminants that are currently not regulated by IMO,” says De Backer.

    The singularity of not choosing clean burning fuels
    In a world of climate change and overall environmental consciousness, Jan De Nul Group has chosen to design and build its latest generation of dredging vessels, running on diesel and equipped with exhaust gas after treatment system. Ambient air in urban environments often contains all kinds of particles and other toxic substances. Jan De Nul aims at minimising its contribution to manmade dangerous pollution sources in those urban areas.

    Burning cleaner fuels helps to reduce some individual pollutant levels, whereas Jan De Nul has taken the initiative to actually remove or eliminate active pollutants from exhaust gases.

    By doing this, Jan De Nul takes a different approach than others who have chosen clean burning fuel vessels. “Our main target from the start was: how can we lower the air pollution caused by dredging vessels?” says Michel Deruyck, Fuel Coordinator at Jan De Nul Group. “We focus on the impact that maritime transport and port development has on public health and ambient air quality. During the new dredger design phase, we looked at different options and technologies, with the goal of maximising pollution reduction or elimination, and preparing for the stricter European land and inland waterways emission regulations Stage V, due for implementation in 2020.”

    Stage V regulation and catalytic filtering technique
    The maritime transport regulator International Maritime Organisation (IMO), states that clean burning fuel vessels have to comply with the IMO Tier III regulation. The European regulations on land, Stage V, are far stricter. Mainly because for the first time, particles emitted down to 23 nanometres are taken into account.

    The new vessels will operate with normally available ultra-low sulphur gasoil, with the exhaust gas treated in two stages by means of a Selective Catalytic Reduction (SCR) system, and a Diesel Particulate Filter (DPF). The SCR system lowers NOx to achieve EU Stage V levels for inland waterways. The second stage DPF removes particulates from the exhaust, also down to the future EU Stage V levels. Eliminating black carbon emission with the DPF significantly reduces the climate impact of these vessels.

    Jan De Nul Group chose technology based on the Swiss example of filtering exhaust gases in the tunnelling industry.  “Since the 1990s, the tunnelling industry has used exhaust gas filtration on vehicle and heavy duty machinery emissions to provide clean, breathable air for workers tunnelling under the Alps,” adds Michel Deruyck. “Today we are applying the same filtering techniques on our new vessels, and by accounting for particle numbers we obtain a 99% filtration efficiency and detoxification by catalysis.”

    The Diogo Cão’s design
    The design of the Diogo Cão is based on the successfully operating 3,400 m3 TSHD Alvar Nuñez Cabeça de Vaca and Sebastiano Caboto, built in 2011. The vessels combine a shallow draught with high manoeuvrability, making them very suitable for working in confined areas.

    The Diogo Cão is in diesel-electric execution: all major drives (thrusters, dredge pump, jet pumps...) are electrically driven, and controlled by means of frequency converters. In this way each system can operate at its optimal speed and power. Power is generated by means of three diesel generator sets. A control system automatically starts and stops the sets depending on the power requirement. Asymmetric load sharing results in optimal load distribution over the diesel generator sets. All these measures result in a low fuel oil consumption, which is the best in its class.

    Hopper capacity: 3,500 m³
    Deadweight: 5,500 t
    Length o.a.: 89.3 m  
    Breadth: 22.0 m
    Max. dredging depth: 27.6 m
    Suction pipe diameter: 800 mm
    Speed: 11.3 kn
    Pump power (trailing): 1,250 kW
    Pump power (discharging): 3,000 kW
    Propulsion power: 2 x 1,100 kW
    Total installed diesel power: 5,510 kW
    Accommodation: 16 persons
    Keel laying of the first 6,000 m³ Trailing Suction Hopper Dredger
    Now the Diogo Cão is launched, the keel laying of the first 6,000 m³ vessel is planned to take place on 19 July at the Keppel Singmarine in Singapore.

    Jan De Nul Group recently decided to name both 6,000 m³ Trailing Suction Hopper Dredgers after two decommissioned vessels of the Groups fleet: Sanderus and Ortelius.

    Luxembourg, Belgium headquartered Jan De Nul Group is a family-owned company specializing in dredging and land reclamation, rock placing, trenching, rock dumping for oil and gas related offshore pipeline projects, quay walls, marine related projects, civil engineering and large-scale environmental remediation projects. Dredging accounts for 85% of the Group's turnover. With a yearly turnover of EUR 1.9 billion, the company ranks among the international top of dredging contactors and the top of marine engineering contractors.




2018 December 10

17:06 Nexans awarded contract for the manufacturing, delivery and installation of 350 kV HVDC submarine cable in the Philippines
16:49 Throughput of port Riga (Latvia) in 11M’18 climbed by 6.5% Y-o-Y to 33.1 million tonnes
16:33 Konstantin Ponomarev appointed as head of RS Nuclear Ships Branch
16:10 Ship Recycling Transparency Initiative launches new online platform
15:58 MOL to participate in construction, ownership, operation of FSRU for Jawa 1 gas-fired IPP project in Indonesia
15:52 MOL LNG сarrier LNG Fukurokuju rescues castaway
15:26 Gasum consolidates its position as the leading Nordic LNG provider
14:58 NIBULON Shipbuilding and Repair Yard adds a new high-capacity German crane to its cranes
14:25 BIMCO publishes two 2020 sulphur clauses
14:00 Average wholesale prices for М-100 HFO down to RUB 16,794 in RF spot market
13:09 EU NAVFOR marks 10 years of operations
12:44 Pertti Korhonen to chair Traffic Management Finland BoD
12:07 Incheon Port container traffic increases by 10.4% in October 2018
11:51 Beginning of icebreaker assistance period announced at Big Port St. Petersburg
11:30 Cargo traffic in Volga Basin of Russia’s IWW in navigation season 2018 fell by 14.6% Y-o-Y to 36.662 million tonnes
11:07 Verifavia Shipping signs cooperations with 8 ROs to support IMO DCS verification
10:48 Port of Liepaja (Latvia) handled 6.89 million tonnes of cargo in 11M'18, up 13.8% Y-o-Y
10:24 Port of HaminaKotka throughput in 11M’2018 grew by 11.5% Y-o-Y to 14.89 million tonnes
10:07 Oman signs Jeddah Amendment on illicit maritime activity
09:45 Brent Crude futures price up 0.45% to $61.95, Light Sweet Crude – up 0.17% to $52.52
09:19 Baltic Dry Index is up to 1,372 points
09:07 CMA CGM announces FAK rates from Asia to the Middle East Gulf
08:07 Torqeedo displays 2019’s new electric boating products at Salon Nautique International de Paris
07:34 chainPORT concludes its 4th Annual Meeting at the Port of Barcelona

2018 December 9

17:01 Jan De Nul starts beach protection project in Benin
16:06 MOL to participate in construction, ownership, operation of FSRU for Jawa 1 Gas-Fired IPP Project in Indonesia
14:40 Coast Guard continues search for survivors of capsized migrant vessel off Dominican Republic
13:38 CMA CGM announces FAK rates for Asia-Middle East Gulf trade
11:39 MHI Vestas clinches largest MW turbine order for Scotland's Moray Firth

2018 December 8

17:15 Huntington Ingalls Industries names Herman Shelanski as new VP, Business Development at it's shipbuilding division
16:07 Gladding-Hearn built pilot boat delivered to Southwest Alaska Pilots Association
13:12 EGCSA blasts MPA's ban on open-loop scrubbers in Singapore
10:28 Torqeedo displays 2019’s new electric boating products at Salon Nautique International de Paris.

2018 December 7

18:01 Naming ceremony for Arctic condensate tanker Boris Sokolov held at Guangzhou Shipyard International
17:38 Tellurian and Vitol sign MOU for 15-year LNG sale on JKM
17:14 Port of Tallinn rewards emission-reducing ships with a discount of up to 8% on tonnage fees
16:50 Vladimir Putin presents Captain Zybko with Distinguished Maritime Service Order
16:26 BSAP updates move forward at HELCOM key meeting
16:02 Orange Business Services keeps Arctic Shipping Company fleet connected along the Northern Sea Route
15:37 EU NAVFOR promotes maritime security dialogue in Somalia
14:59 Protection structures to be built at the port of Sochi
14:25 Northern Fleet's frigate Admiral Gorshkov takes part in training in the Barents Sea
14:08 ABS signs MOU with KOMERI to create a new facility dedicated to improving the safety of LNG as fuel
13:08 Crowley adds 400 new refrigerated containers to its fleet
12:26 Freight turnover of Neva-Metal (Saint-Petersburg) in 11M’18 climbed by 3% Y-o-Y to about 2.9 million tonnes
11:57 Montreal, Canada to host 14th Arctic Shipping Summit on 13-14 March 2019
11:24 Vladivostok Sea Fishing Port handled 284,000 tonnes of fish in 11M’18, up 25.8% Y-o-Y
11:08 SEA Europe and ECSA pleased with EU’s actions on trade-distortive South Korean measures in shipping and shipbuilding
10:45 Extraordinary General Shareholders Meeting of LUKOIL approves interim dividends
10:21 Brent Crude futures price down 0.62% to $59.69, Light Sweet Crude – down 0.41% to $51.28
10:06 Barcelona City Council supports reducing pollution in the Mediterranean with a low emissions zone
09:42 Bunker prices are slightly down at the Port of Saint-Petersburg, Russia (graph)
09:19 Baltic Dry Index is up to 1,339 points
09:03 Fincantieri launches new ship “Carnival Panorama” for Carnival Cruise Line
08:07 NYK concludes long-term charter agreement for two LNG carriers with Total
07:24 ‘Breakbulk carrousel’ gives breakbulk and heavy cargo companies space for further growth in Rotterdam’s Waalhaven

2018 December 6

18:05 ONE Thailand receives 2018 Best Container Liner Award from Thai National Shippers’ Council
17:54 IAPH LNG bunkering audit tool already used to license operations at Port of Rotterdam
17:35 IMO highlights key elements of the Initial IMO Strategy on reduction of GHG emissions from ships
17:17 2019 port tariff increases at North Sea Port stay below inflation level