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Wartsila: Methanol as marine fuel – is it the solution you are looking for?

Publishes comprehensive Insight article to help ship owners and operators navigate the advantages and issues of using the product as a marine fuel.

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NYK methanol bunkering at Rotterdam port on 21 July 2021

Technology group Wärtsilä on Monday (20 February) published the Insight article “Methanol as marine fuel – is it the solution you are looking for?” to help ship owners and operators navigate the advantages and issues of using the product as a marine fuel. An excerpt of the article is as follows:

What is methanol?

Methanol (methyl alcohol, CH3OH or MeOH) is a biodegradable wood alcohol used to make everything from plastics to paints and pharmaceuticals. Although it is toxic and highly flammable, it dissolves in water and biodegrades quickly. Methanol has been used in industrial applications for over 100 years, but it’s now also showing great promise as a clean and sustainable future fuel for maritime applications.

What types of methanol are there?

Broadly speaking, methanol can be categorised into fossil-based methanol and renewable methanol. Fossil-based methanol is produced from coal or natural gas. Renewable methanol can be made from things like biomass or captured CO2 combined with green hydrogen.

What colour is methanol?

  • Methanol is a colourless liquid, but colour names are used to show what it’s made from:
  • Green methanol is made from biomass or captured CO2 and green hydrogen
  • Blue methanol is made using blue hydrogen in combination with carbon capture technology
  • Grey methanol is produced using natural gas
  • Brown methanol is produced using coal.

Green methanol is the most environmentally sustainable. Blue methanol still significantly reduces well-to-tank CO2 emissions compared to fossil fuels like diesel. One of the biggest challenges for maritime decarbonisation is that most methanol today is either grey or brown. All types of methanol could lead to a tank-to-wake CO2 reduction of about 7% compared to diesel. However, if we take the well-to-wake approach (from production to utilisation), the CO2 impact of grey and brown methanol is worse than that of diesel. This is why green and blue methanol are the only real alternatives when targeting well-to-tank GHG reduction.

Is methanol as fuel good for the environment?

The main benefit of green methanol is that it produces less CO2 than diesel combustion, as well as lower SOx and NOx emissions. The amount you can reduce emissions by will depend on the load your engines are running at. Studies have shown that, taking a tank-to-wake approach, by using methanol instead of heavy fuel oil (HFO):

  • CO2 emissions can be cut by 7%
  • SOx emissions can be cut by 99%, and
  • NOx emissions can be cut by 60%.

Methanol also biodegrades rapidly in water, which also makes it less of a risk to the environment than many alternatives.

Is methanol as marine fuel bad for the environment?

The CO2 footprint of methanol varies according to how it’s produced and transported, with fossil-based methanol generating more lifetime CO2 emissions than diesel. This makes green methanol the right choice for decarbonisation. Since the methanol molecule is the same whether it is grey, brown, blue or green, blending methanol is also a viable option to support the transition from conventional to renewable marine fuels.

How can methanol help with decarbonisation in shipping and the maritime energy transition?

The methanol molecule – CH3OH – is the same whether it is produced from grey, brown, blue or green feedstocks. This means you can blend it to help you transition gradually towards using a greater percentage of sustainable green methanol.

Is methanol expensive?

Compared to diesel operation, fuel expenses can be up to 15 times higher depending on the type of methanol consumed, its price and the share of energy provided by methanol. Although fuel expenses are higher with methanol than with diesel, this should be considered in terms of today’s regulatory environment. Vessels that fail to meet CII and EEXI targets will not be allowed to operate any longer. So the extra cost of the fuel should be compared not only with today's fossil fuel price but with the cost of a brand new and more efficient ship and with the possible losses due to a mandatory stop of operations.

The Powerzeek Energy Platform has added methanol to its online marketplace in response to increased enquiries from shipowners. Powerzeek makes it easier for shipowners and trucking companies to find and buy cleaner fuels at the best available price.

Is methanol safe onboard ships?

From the perspective of onboard safety, there are well-established rules and regulations pertaining to the use of methanol as a marine fuel in the form of the IMO’s MSC.1-Circ.1621 – Interim Guidelines For The Safety Of Ships Using Methyl/Ethyl Alcohol As Fuel. Additionally, Wärtsilä has developed a safety concept for methanol engines that acts as an internal design guideline for all marine projects that involve using methanol as a fuel.

Where can I buy methanol as fuel for ships?

If you’re looking for methanol suppliers for ships, in 2020 the Methanol Institute confirmed that methanol was available at about 100 ports around the world.

Maritime-dedicated infrastructure for methanol transportation is still in the early stages of development but is expanding all the time.

Note: The full Insight article “Methanol as marine fuel – is it the solution you are looking for?” is available at Wartsila’s website here

 

Photo credit: NYK, Waterfront Shipping, Vopak, TankMatch
Published: 28 February, 2023

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Biofuel

NYK conducts first Japan bio bunker fuel trial on coal carrier for domestic power utility firm

Firm said it has started a biofuel test run on Noshiro Maru, operated by Tohoku Electric Power, marking the first time in Japan that a coal carrier has been used to test biofuel for a domestic power utility firm.

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NYK conducts first Japan bio bunker fuel trial on coal carrier for domestic power utility firm

Japanese shipping firm NYK on Monday (10 February) said it has started a biofuel test run on its coal carrier Noshiro Maru, which is operated by Tohoku Electric Power on 9 February.

This is the first time in Japan that a coal carrier has been used to test biofuel for a domestic power utility company. Mitsubishi Corporation Energy in the Keihin area facilitated the supply of biofuel for the vessel.

Biofuels are made from organic resources (biomass) of biological origin, such as agricultural residues and waste cooking oil, and are considered to produce virtually zero carbon dioxide (CO₂) emissions when combusted.

“Since they can be used in heavy-oil-powered ship engines, which are common on large merchant ships, biofuels are considered a key means of reducing greenhouse gas (GHG) emissions in the transition period from heavy oil to zero-emission fuels,” NYK said. 

“Using biofuel to reduce GHG emissions during sea navigation also contributes to reducing Scope 3 GHG emissions generated by transporting customers’ cargo.”

NYK added it will continue to focus on introducing biofuels and other next-generation fuels, and will contribute to reducing GHG emissions in our customers' supply chains while promoting decarbonisation in marine transport.

 

Photo credit: NYK
Published: 11 February, 2025

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Biofuel

IBIA welcomes IMO move to draft guidance change on carriage of bio bunker fuels

IBIA welcomed agreement by IMO’s Sub Committee on PPR 12 to draft Interim Guidance on the carriage of blends of biofuels and MARPOL Annex I cargoes by conventional bunker ships.

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RESIZED IBIA logo

The International Bunker Industry Association (IBIA) on Monday (10 February) said it submitted a document to IMO on the carriage of biofuels for supply to a ship for use as fuel oil on board that ship in November 2023.

This highlighted that as conventional bunker vessels were limited in carrying fuel oil of no more than 25% biofuel it presented a potential impediment to the global adoption of biofuels as fuel oil for ships and so to the ambition for the decarbonization of international shipping in the short term, as set out in the 2023 IMO GHG Strategy.

“IBIA therefore welcomes the agreement by IMO’s Sub Committee on Pollution Prevention and Response (PPR 12) to draft Interim Guidance on the carriage of blends of biofuels and MARPOL Annex I cargoes by conventional bunker ships,” it said on its website. 

The guidance allows conventional bunker ships certified for carriage of oil fuels under MARPOL Annex I to transport blends of not more than 30% by volume of biofuel, as long as all residues or tank washings are discharged ashore, unless the oil discharge monitoring equipment (ODME) is approved for the biofuel blend(s) being shipped. 

“The Interim Guidance is expected to be approved by IMO’s Marine Environment Protection Committee (MEPC 83) in April,” IBIA added. 

“IBIA’s membership represents stakeholders from across the global marine fuel value chain, and being able to draw on this technically strong and credible resource will, in its role of having consultative status to the IMO, mean that IBIA will continue to bring important matters to the attention of the wider IMO membership for due consideration.”

 

Photo credit: International Bunker Industry Association
Published: 11 February, 2025

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Alternative Fuels

Ammonia, methanol bunkering infrastructures among 39 projects to receive EU funding

Both projects aim to deploy a ship-to-ship bunkering system at the ports of Huelva and Algeciras respectively and include a 7500 m3 bunkering vessel each.

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Guillaume Périgois on Unsplash

Two projects involving ammonia and methanol bunkering infrastructures in the ports of Huelva and Algeciras in Spain were among 39 projects to receive funding under the first cut-off deadline of 2024-2025 Alternative Fuels Infrastructure Facility (AFIF) of the Connecting Europe Facility (CEF), according to the European Commission recently. 

The first ammonia bunkering infrastructure will be in Algecirasa as part of the Andalusian Green Hydrogen Valley. The project aims to deploy a ship-to-ship ammonia bunkering system in the port of Algeciras. 

It includes a 7500 m3 ammonia bunkering vessel, an on-shore ship loading system and the piping infrastructure for the transport of ammonia from the production site to the loading dock.  

Meanwhile, the first methanol bunkering infrastructure will be in Huelva, also as part of the Andalusian Green Hydrogen Valley. The project aims to deploy a ship-to-ship methanol bunkering system in the port of Algeciras. 

It includes a 7500 m3 methanol bunkering vessel, an on shore ship loading system and the piping infrastructure for the transport of methanol from the production site to the loading dock.

The coordinator for both bunkering projects is Spanish bunker and biofuel supplier CEPSA. 

The European Commission said the EU is allocating nearly EUR 422 million to the 39 projects that will deploy alternative fuels supply infrastructure along the trans-European transport network (TEN-T), contributing to decarbonisation. 

With this selection, the AFIF will support other projects including approximately 2,500 electric recharging points for light-duty vehicles and 2,400 for heavy-duty vehicles along the European TEN-T road network, 35 hydrogen refuelling stations for cars, trucks and buses, the electrification of ground handling services in eight airports and the greening of nine ports.

Following EU Member States’ approval of the selected projects on 4 February, the European Commission will adopt the award decision in the coming months, after which the results will become definitive. 

The European Climate, Infrastructure and Environment Executive Agency (CINEA) has started the preparation of the grant agreements with the beneficiaries of successful projects.

Note: The full list of successful projects can be viewed here.

 

Photo credit: Guillaume Périgois on Unsplash
Published: 11 February, 2025

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