ian adams

- Op/Ed: Shipping's Energy Challenge Marine News, Dec 2016 #18
There is no more economically and environmentally efficient way of transporting the world’s goods than by sea. Compared to air or road freight, based on per ton of cargo shipped, shipping’s carbon footprint is small. Yet with the 60,000 or so ships that transport 80 percent of the world’s goods emitting about 1.12bn tons of CO2 each year, almost 4.5 percent of all global greenhouse gas emissions, it is unequivocal that we need a viable way of reducing our environment impact. As other sectors reduce their carbon footprint shipping’s is likely to increase as an overall percentage.

The wider take up of liquid natural gas LNG as a marine fuel, however, is not the answer to meeting the great energy challenge that shipping and indeed other industrial sectors face. This is principally because in its unburned state, LNG is methane gas – a GHG with a global warming potential much higher than CO2. The slightest slip or leakage should be a real concern.

While it is well documented that LNG is an excellent solution for reducing non-GHGs such as SOx and NOx, it is wrong to promote it as a solution for reducing GHGs as some industry segments are doing. The figures simply don’t add up.

For example, almost twice as much LNG must be used to get the same energy output as heavy fuel oil. LNG has an energy density of about 22.5J/liter while fuel oil has an energy density of 40J/liter, therefore to produce the same amount of energy you need to burn almost twice as much (by volume) LNG. Then you have the problem of methane slippage, fuel passing through the engine unburned, and released to atmosphere.

Methane is proven as having a global warming potential of 28 on a 100 year time horizon while CO2 on the other hand has a warming potential of 1 on a 100 year time horizon. So if we rather conservatively accept that burning LNG will reduce CO2 emissions by 20 percent over the current level then it would require less than a 1 percent slip released to atmosphere to counter any GHG emission reduction benefits LNG fuel might bring. Taken over the entire supply chain, 1 percent is not unrealistic.

Indeed, this is something Stamford University researchers confirmed last month. “Even small leaks from natural gas wells can create large climate concerns because methane is a potent greenhouse gas – it’s about 30 times more effective at trapping solar heat than carbon dioxide over a 100-year period,” the researchers reported. UCI and Stanford also concluded in 2014 that natural gas does not significantly lower greenhouse gas emissions, even if no methane leaks during production and shipping.

What I find interesting, is that we have eliminated the problem of CFC-based refrigerants and are looking at restricting the use of HCFCs, so why are some quarters, particularly Class, keen to use another aggressive GHG in even greater volume. We cannot risk adding an additional source of methane emissions to atmosphere when there is already a possible thawing of the Siberian permafrost. Releasing more methane to atmosphere could result in a positive feedback loop.

LNG fuel proponents are keen to emphasize the 70 percent reduction in emissions burning LNG as a marine fuel could bring, and if there was no possibility of methane slip, then this would be a very attractive proposition. By mass, LNG contains less carbon than heavy fuel oil (but only about 20 percent maximum). But much of the improved energy efficiency and emissions is afforded by the technical advancements made by the builders of marine engines and exhaust treatment technologies irrespective of the fuel used.

It is true that the ability of marine engines to effectively burn LNG more completely has improved resulting in less ‘slip’, and this is to be welcomed. What cannot be avoided are the operational situations that require venting LNG to atmosphere for the safety of both man and machinery.

Continued improvements in combustion efficiency could see emissions targets met with the use of existing fuels. Engine technology has advanced since the 1940s and 1950s, when residual fuel was pioneered as a fuel for use in diesel engines, and marine engineers have worked hard to improve efficiency as fuel changes. For instance, the residual fuel oil of the early days bears little or no resemblance to the more complex residual fuel currently in use: today’s fuel requires a greater amount of pre-treatment which is achieved in the complex machinery now being used.

This is not a Luddite reaction to progress, but a recognition that marine engineers are capable of a more effective change. We will be better off looking at technology that allows for the continued use of HFO or MDO/MGO until cost-effective fuel cell technologies have been developed.

The continued use of existing fuels, rather than the adoption of LNG, will have another benefit from a GHG perspective. With the refining process what goes in must come out, otherwise a refinery will eventually effectively become clogged. The processes currently used produce the spread of products we see today, including fuel oil. If the market for fuel oil disappears then the refiners are left with the issue of what to do with the residual stream produced during the crude oil refining process. It will have to be processed somehow. This will undoubtedly require energy resulting in the production of CO2 and therefore additional GHG.

Unfortunately, the LNG myth has progressed unchecked with very few challenging those lobbying for a wider take up of LNG. I certainly think that if there is now a change of heart in the U.S. power sector about converting coal-fired plants to run on LNG, then the shipping industry should not be quick to accept that this ‘cleaner’ fuel is a panacea to meeting its emissions reduction requirements.

LNG has a limited effect on the reduction of CO2 and the risks of its rollout to the entire fleet are unacceptable. Rather than spend millions of dollars and man hours working on a solution that barely scratches the surface of the problem, more time, money and effort would be better spent on seeking a truly effective solution to the emission of GHG.

The Author
Ian Adams, FIMarEST, is the Chief Executive of Association of Bulk Terminal Operators (ABTO) and the former CEO of the International Bunker Industry Association (IBIA). These are his opinions alone and furthermore may not necessarily reflect that of Marine News and/or its publishers.

(As published in the December 2016 edition of Marine News)
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The EU is limbering up to set new restrictions on sulfur in marine fuels, if MARPOL Annex VI is not implemented quickly, explains Ian Adams, secretary general of the International Bunker Industry Association (IBIA). At the same time, the European Commission aims to clarify its own directive on sulfur
- The New Voice of the Bulk Terminal Operator Maritime Logistics Professional, Q3 2016 #26
corridors of maritime power, the global bulk terminal operators’ voice is rarely heard at such a high level. “ABTO serves to deliver that voice,” says Ian Adams, the Chief Executive of the newly established Association of Bulk Terminal Operators. Created to fulfill a need within the bulk industry for

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, suppliers and be above the 10-year average of $81bn, components and materials are critical, data breach victims, notwithstanding at $115bn. Hurricane Ian, which struck where they are sourced, as well as how any reputational damage to the impacted Florida in September, was the year’s to secure them
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and Q2 water, the results from our 2023. The rest are expected to include calculations and knowledge R VU A R ROV V V are hard at work. Jones Act compliant builds via Diverse Marine’s USA-based shipyard partners. HydroComp connects your ingenuity with improved The Hydronauts will have a Guard- outcomes: ian
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And it lists the seasonal decision dates when these actions the extremely low levels experienced in 2012. Graschel will be taken. said that hurricane Ian poured a lot of water into eastern Coincidentally, in early October, ACE announced wors- portions of the Ohio River system. After the ? rst week in
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a 500MU vibro-hammer supplied by Dieseko, supported by a heave- compensated crane on the Maersk Achiever vessel,” said CorPower Ocean Senior Engineer Ian Denton. “The installation method works by vibrating the anchor into the sea bed, offering a high speed, low- noise solution which minimizes im- pact
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SIDE SCAN SONAR The need to work and explore in the world’s waterways more ef? ciently TH and cost-effectively is inspiring a generation of innovation. Ian Estaphan 4 GENERATION. Owen and Jason Webster co-founded JAIA Robotics in December 2020, a 540B/850kHz, or 540B/1600kHz, or 850B/540kHz, or 850B/1600kHz
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Boats International 31’ walk-around cabins; 31’ full cabin EMT and 27’ walk- “We started Silverback with the vision of essentially bring- around towboat variants; 36’ to 65’ full cabin, inboard jet ing, what I would call, the big boat experience to smaller boats; and all the way up to 39’ riverine patrol
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to a bigger be operated with a one-person crew ? nd if you’re getting a much larger ship, or simply need to get a number and does not require compliance with vessel,” the company’s founder, Ian of personnel from one vessel to an- USCG Subchapter M regulations. Gracey, said. other quickly, then this
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he served for nearly 25 will ? ow.” 330 uniformed of? cers and 1,000 civil- years aboard ? sheries, oceanographic McLean grew up on the Passaic River ian personnel assigned to OMAO and the and hydrographic ships, retiring from the in Rutherford, NJ, received a bachelor NOAA Corps. NOAA Corps at the
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November 2021 - Maritime Reporter and Engineering News page: 3rd Cover
OFFSHORE WIND REPORT SAFETY AND COMPLIANCE INSIGHTS: UNDERSTANDING U.S. REGULATIONS FOR OFFSHORE WIND VESSELS DOWNLOAD THE REPORT TODAY www.eagle.org tter t hu t tter © nDy © © © Ian Dybal /Shu terstoc © © Ia ©Ian Dyball/Shutterstock COV2, C3 &C4 MR November 2021.indd 2 11/4/2021 5:11:14 PM
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departments as well as the har- advisor to the Ecochlor board of di- ecutive Wendy O. Hamilton as Chair. bor master’s of? ce. rectors and leadership team Ian-Conrad Bergan Jo-Kell Acquires ATS Crowley Names Messina Rebrands as Bergan Jo-Kell Inc. has completed its M&A VP Marine Systems acquisition of
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American jobs, and for the mutual suc- indicator that close collaboration now between America’s cess of offshore wind developers and the U.S. maritime © Ian Dyball / Adobe Stock www.marinelink.com MN 23
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for Innovation for its ISA500 Altimeter, recognized as having a step- Sonardyne change impact within the ? eld of underwa- Manufacturing Assembly Operator Ian Hall, prepares a seabed monitor- ter altimeters in terms of distance measure- ing instrument at Sonardyne’s headquarters in Yatelely, England. ment
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30 ships, six were container ships for Matson accommodate up to 1,000 people in times of humanitar- Navigation, and two were Aframax tankers for SeaRiver ian need, and RoRo and container storage capacity for use Maritime, ExxonMobil’s marine af? liate,” said Steinar during disaster relief missions. “The