• 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.




2019 November 15

18:09 Coast Guard medevacs cruise ship Aida Perla passenger just off Ponce, Puerto Rico
17:48 Sovcomflot reports its results for third quarter and nine months of 2019
17:23 Wärtsilä and PSA Marine collaborate to achieve clean energy shipping
17:15 Bollinger Shipyards contracted to build ocean transport barge
17:00 Composit supports 7th International Forum of Dredging Companies as its Sponsor
16:57 Ulstein unveils its concept of the first hydrogen powered offshore vessel
16:36 RF Government separates positions of Deputy Transport Minister and head of Rosmorrechflot
16:14 IMO holds training on impacts of anti-fouling systems and ships’ biofouling on marine environment
15:39 Norway boosts IMO's GreenVoyage-2050 GHG project
15:11 New Wärtsilä Expertise Centre provides value-adding lifecycle support
14:57 LUKOIL commissions phase three facilities at Filanovsky field
14:30 NSR cargo traffic totaled 26 million tonnes year-to-date, up 63.5% YoY
14:13 Georgia Ports Authority up 3.5 percent to 428,400 TEU in October 2019
13:13 Diana Shipping announces direct continuation of time charter contract for m/v Medusa with Cargill
12:51 Multipurpose Reloading Complex reports 4-fold increase of allocations for environment protection to RUB 11.5 million
12:32 ABI Research: Commercial fleets looking to tech to accelerate ROI in the face of rising costs, competition, and uncertainty
12:13 Port of Oakland names Danny Wan Executive Director
11:28 ESL Shipping participates in Intelligence Hunt
11:00 CMA CGM to apply GRI from Canada West Coast to worldwide destinations (Excluding EU, Russia & USA)
10:41 Delft Dynamics, Next Ocean and Damen perform qualification test in North Sea
10:40 Gremyashii corvette of RF Navy’s Nothern Fleet to be tested in White Sea
10:16 Training ship Perekop of RF Navy's Baltic Fleet arrives in Republic of Myanmar
09:54 Bunker prices go down at the port of Saint-Petersburg, Russia (graph)
09:39 MABUX: Bunker market this morning, Nov 15
09:32 Brent Crude futures price is up 0.45% to $62.56, Light Sweet Crude – up 0.51% to $57.06
09:13 Baltic Dry Index is up to 1,364 points

2019 November 14

18:19 French Prime Minister Edouard Philippe inaugurates CEVA Logistics’ new headquarters in Marseille
18:00 Boosting handling of cargo bound for Arctic considered as strategic development vector of Murmansk Commercial Seaport
17:41 Port of Liepaja (Latvia) handled 5.92 million tonnes of cargo in 10M'2019, down 5.1% Y-o-Y
17:20 Gasunie, EBN, Port of Amsterdam and Tata Steel work together on the development of a CCUS project in the North Sea Canal area
16:49 Hung Hua Construction of Taiwan orders third Fast Crew Supplier this year to support offshore wind ambitions
16:36 Main engines loaded onto second serial ship of PV22 project at Nevsky Shipyard
16:15 Hapag-Lloyd announces rates from East Asia to North Europe and Mediterranean
15:59 Yevgeny Savkin appointed as General Director of Novyie Kommunalnyie Tehnologii in Ust-Luga port
15:15 The ICS and ECSA call for immediate and effective intervention after yet another attack in the Gulf of Guinea
15:12 Restoration of 90 year old Amsterdam bridge by Niron Staal
14:43 Expert forecasts scrubbers to consume some 600,000 barrels of heavy fuel per day in 2020
14:14 Norway boosts IMO's GreenVoyage-2050 GHG project
13:32 Sea Port of Saint-Petersburg invested RUB 630 million in development in 9M’19, up 53% YoY
13:11 MOL earns AIP for design of bow wind-shield, ultra-large containership
12:30 Bunker prices are flat at the Far East ports of Russia (graph)
12:04 CMA CGM announces FAK rates from Asia to the Middle East Gulf
11:23 Aleksey Rykovanov appointed as General Director of Murmansk Commercial Seaport
11:01 Arista Shipping starts the path to smart shipping operations with an ocean data agreement with ABS
10:39 RF Government supports expansion of Murmansk Transport Hub capacity to 65 million tonnes by 2035
10:16 MABUX: Bunker market this morning, Nov 14
10:02 WesCom Signal and Rescue goes green at METSTRADE 2019
09:38 Three new Damen FCS Patrol vessels for SR Platforms achieve major milestones in a single week
09:33 Brent Crude futures price is up 0.58% to $62.73, Light Sweet Crude – up 0.72% to $57.53
09:19 Baltic Dry Index is up to 1,365 points

2019 November 13

18:07 LR and Seabury Maritime partner to tackle OPEX and CAPEX challenges
17:55 Gasum acquires AGA’s Clean Energy business and Nauticor’s Marine Bunkering business from Linde AG
17:36 Rolls-Royce and luxury yacht manufacturer Sunseeker sign frame agreement for MTU engines
17:18 Next-generation controller platform ‘Triton’ successfully passes TAT in Japan using latest ME-engine control system
17:04 LNG market expectations will be framed at the 6th International LNG Congress
16:54 Throughput of port Kaliningrad in Jan-Oct’2019 fell by 21% Y-o-Y to 9.34 million tonnes
16:28 Throughput of port Vyborg in Jan-Oct’2019 fell by 35% Y-o-Y to 1 million tonnes
16:03 MSC Cruises christens MSC Grandiosa
15:29 Innovative solutions for remote inspection: RINA and Kiber team up
15:03 Klaveness to focus their Dry Bulk operator activity on the Panamax to Post-Panamax segment