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Ammonia for Decarbonized Maritime Transportation

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Clean Fuels for Mobility

Abstract

Carbon emissions are one of the important topics in maritime transportation recently since International Maritime Organization (IMO) implemented stricter regulations. IMO announced Initial Greenhouse Gas (GHG) Strategy in 2018 for decarbonization of maritime transportation. International shipping consumed 300 million tons of high carbon content fossil fuels annually and it is increasing year by year. Maritime transportation constitutes 3.1% of the total global CO2 emissions which depends on the usage of high carbon content fossil fuels. The Initial GHG Strategy aims to reach zero-carbon shipping in the future. One way to achieve this aim is the usage of alternative fuels with zero-carbon content. Ammonia is one of the alternative fuels that can be either used for fuel cells on ships and at marine diesel engines. Ammonia has a carbon-free and sulfur-free structure and it can be combusted by the dual-fuel combustion concept at marine diesel engines as same as other alternative marine fuels. In this chapter, a review study is conducted on ammonia to show its importance for decarbonized maritime transportation. The outcomes of the chapter reveal that although there are some barriers to ammonia as a marine fuel, the existing experience of the maritime industry, supply chains and infrastructures of fertilizer industry, low modification requirement on engines, and achievement of significantly lower CO2 and soot emissions, and almost zero SOX emissions will facilitate the use of ammonia, and it can be one of the options for full decarbonized maritime transportation by 2050.

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Abbreviations

AFC:

Alkaline fuel cell

CCS:

Carbon capture and storage

CI:

Compression ignition

DME:

Dimethyl ether

FC:

Fuel cell

GHG:

Greenhouse gas

H-B:

Haber-Bosch

HCCI:

Homogeneous charge compression ignition

HFO:

Heavy fuel oil

ICE:

Internal combustion engine

IMEP:

Indicated mean effective pressure

IMO:

International Maritime Organization

LBG:

Liquefied biogas

LHV:

Lower heating value

LNG:

Liquefied natural gas

LPG:

Liquefied petroleum gas

LSHFO:

Low-sulfur heavy fuel oil

MBM:

Market-based measures

MCFC:

Molten carbonate fuel cell

MDO:

Marine diesel oil

MGO:

Marine gas oil

OSHA:

US Occupation Safety and Health Administration

PAFC:

Phosphoric acid fuel cell

PEMFC:

Proton exchange membrane fuel cell

PPC:

Partially premixed combustion

RCCI:

Reactivity controlled compression ignition

SCR:

Selective catalytic reactor

SFC:

Specific fuel consumption

SOFC:

Solid oxide fuel cell

SOI:

Start of injection

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Correspondence to Burak Zincir .

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© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Zincir, B. (2022). Ammonia for Decarbonized Maritime Transportation. In: Di Blasio, G., Agarwal, A.K., Belgiorno, G., Shukla, P.C. (eds) Clean Fuels for Mobility . Energy, Environment, and Sustainability. Springer, Singapore. https://doi.org/10.1007/978-981-16-8747-1_9

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  • DOI: https://doi.org/10.1007/978-981-16-8747-1_9

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-16-8746-4

  • Online ISBN: 978-981-16-8747-1

  • eBook Packages: EngineeringEngineering (R0)

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