An empirical analysis on the operational profile of liquefied natural gas carriers with steam propulsion plants

Abstract Liquefied natural gas (LNG) offers negligible NOx and SOx emissions as well as reductions in CO2 compared with other liquid hydrocarbons. LNG is a significant player in the global energy mix, with a projection of 40% increase in demand for the next two decades. It is anticipated that the expected rise in demand will cause the fleet of LNG carriers (LNGC) to expand. This work concentrates on steam-powered LNGC, which accounted for 47% of the LNGC fleet in 2018. It performs an empirical analysis of continuous monitoring data that provide high levels of accuracy and transparency. The analysis is done on data collected from 40 LNGCs for over a year to estimate the fleet's operational profile, fuel mix and energy performance. The findings of this work are relevant for bottom-up analysis and simulation models that depend on technical assumptions, but also for emission studies such as the upcoming Fourth International Maritime Organization Greenhouse Gases study.

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An empirical analysis of the factors that influence the amount of liquefied natural gas import on the examples of Japan and Republic of Korea

Problems of Economics and Management of Oil and Gas Complex ◽

10.33285/1999-6942-2019-5(173)-49-55 ◽

2019 ◽

pp. 49-55

Author(s):

Ko Juyoung ◽

Keyword(s):

Natural Gas ◽

Empirical Analysis ◽

Liquefied Natural Gas ◽

Republic Of Korea

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Changing Contract Structures in the International Liquefied Natural Gas Market : A First Empirical Analysis

Revue d économie industrielle ◽

10.4000/rei.4056 ◽

2009 ◽

pp. 89-112 ◽

Cited By ~ 4

Author(s):

Sophia Ruester

Keyword(s):

Natural Gas ◽

Empirical Analysis ◽

Liquefied Natural Gas ◽

Natural Gas Market ◽

Gas Market

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Liquefied Synthetic Natural Gas Produced through Renewable Energy Surplus: Impact Analysis on Vehicular Transportation by 2040 in Italy

Gases ◽

10.3390/gases1020007 ◽

2021 ◽

Vol 1 (2) ◽

pp. 80-91

Author(s):

Linda Barelli ◽

Gianni Bidini ◽

Panfilo Andrea Ottaviano ◽

Michele Perla

Keyword(s):

Renewable Energy ◽

Natural Gas ◽

Greenhouse Gases ◽

Renewable Energy Sources ◽

Liquefied Natural Gas ◽

Heavy Duty ◽

Synthetic Natural Gas ◽

Greenhouse Gases Emissions ◽

Energy Surplus ◽

Heavy Duty Vehicles

Time mismatch between renewable energy production and consumption, grid congestion issues, and consequent production curtailment lead to the need for energy storage systems to allow for a greater renewable energy sources share in future energy scenarios. A power-to-liquefied synthetic natural gas system can be used to convert renewable energy surplus into fuel for heavy duty vehicles, coupling the electric and transportation sectors. The investigated system originates from power-to-gas technology, based on water electrolysis and CO2 methanation to produce a methane rich mixture containing H2, coupled with a low temperature gas upgrading section to meet the liquefied natural gas requirements. The process uses direct air CO2 capture to feed the methanation section; mol sieve dehydration and cryogenic distillation are implemented to produce a liquefied natural gas quality mixture. The utilization of this fuel in heavy duty vehicles can reduce greenhouse gases emissions if compared with diesel and natural gas, supporting the growth of renewable fuel consumption in an existing market. Here, the application of power-to-liquefied synthetic natural gas systems is investigated at a national level for Italy by 2040, assessing the number of plants to be installed in order to convert the curtailed energy, synthetic fuel production, and consequent avoided greenhouse gases emissions through well-to-wheel analysis. Finally, plant investment cost is preliminarily investigated.

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