Emissions Reduction Visual Presentation R06: Ammonia transport: seaborne tanker loading – technology selection, system design and modelling
Alex Lockett A *A
Alex Lockett is a Delivery Manager at Genesis Energies, where he oversees the multidisciplinary technical and commercial delivery of projects across the Australian business. With over 20 years of experience in engineering project execution, Alex has cultivated a strong track record in managing complex onshore, offshore, and subsea projects. Alex’s expertise spans regional and global value chains and energy solutions for projects, including conventional oil and gas, carbon capture and storage (CCS), hydrogen and its derivatives, and offshore wind. He is passionate about advancing decarbonisation and the energy transition, recognising the critical role the responsible use of conventional hydrocarbons plays in ensuring a sustainable and reliable energy future. Driven by a collaborative mindset, Alex works closely with clients and stakeholders to deliver innovative, high-value projects. His commitment to fostering trust and creating meaningful solutions positions him as a key contributor to the evolving energy landscape. |
Abstract
Emissions Reduction Visual Presentation R06
Ammonia plays a crucial role in the transition to a sustainable economy due to its potential as an energy carrier, fertiliser and industrial feedstock. Low-carbon ammonia can be produced from fossil fuels enabled by carbon capture and storage or electrolysis powered by low-carbon sources. The location of renewable or carbon capture, utlisation and storage low-carbon ammonia projects typically prioritise locations with abundant wind and solar resources and low energy costs or proximity to carbon sequestration resources. However, in Australia these areas are often remote from demand centres and export route to market by tanker shipping is required. Furthermore, there is often no access to existing port facilities, requiring construction of a new seaborne tanker loading system. This paper identifies and assesses the options for ammonia shipping tanker export and loading systems, including jetties and floating offload technologies. The comparative assessment identifies what factors influence the selection of a loading system and where jetties are preferable over floating systems and vice versa. The system design considerations for each type of loading system are assessed, including the thermal design and the impact on the onshore storage, boil-off gas and export pumping requirements. These can influence the selection of onshore liquefaction technologies and cooling requirements. The paper will also present a typical floating export system via a buoy and will outline the subsea system components, including pipeline insulation requirements, definition of operating modes and subsea system functional design.
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Keywords: ammonia, floating offload, flow assurance, hydrogen, insulated pipelines, low-carbon ammonia, process design, shipping, subsea.
Alex Lockett is a Delivery Manager at Genesis Energies, where he oversees the multidisciplinary technical and commercial delivery of projects across the Australian business. With over 20 years of experience in engineering project execution, Alex has cultivated a strong track record in managing complex onshore, offshore, and subsea projects. Alex’s expertise spans regional and global value chains and energy solutions for projects, including conventional oil and gas, carbon capture and storage (CCS), hydrogen and its derivatives, and offshore wind. He is passionate about advancing decarbonisation and the energy transition, recognising the critical role the responsible use of conventional hydrocarbons plays in ensuring a sustainable and reliable energy future. Driven by a collaborative mindset, Alex works closely with clients and stakeholders to deliver innovative, high-value projects. His commitment to fostering trust and creating meaningful solutions positions him as a key contributor to the evolving energy landscape. |
