LPG fuel promotes LPG/ammonia transport ship GAS AMETHYST.
Kawasaki Heavy Industries has delivered the LPG/Ammonia transport ship 'GAS AMETHYST', which is using type LPG (liquified petroleum gas) as fuel. This newest ship type uses LPG as a low-carbon energy source, and ammonia, which is expected to be used as a new fuel for decarbonized society in the future. The ship can transport both LPG and ammonia and increase its cargo capacity compared to the previous ship model, the 84,000 m3 LPG carrier. It is the fifth ship of the LPG/Ammonia Transport Ship type to be delivered by the company. This ship is equipped with a LPG fuel propulsion engine and the delivery of this ship makes it the 12th LPG fuel propelled ship and 75th LPG transport ship delivered by the company. Furthermore, this ship has a shaft generator that is connected to the propeller from the main engine, which supplies the internal power of the ship. By operating this shaft generator, the diesel generator can be stopped during normal navigation, using only a small amount of pilot fuel. Completely LPG fueled operation becomes possible, making the ship more environmentally friendly. This ship is able to transport LPG and ammonia, which is expected to be used as a new fuel for decarbonized society in the future, and can also be transported simultaneously. The cargo tank volume has been increased without significantly changing the main dimensions of the hull, such as overall length and width, so that it can berth at major LPG terminals around the world. Based on specific action plans such as environmental regulations and SDGs being strengthened worldwide, the company will continue to develop and provide shipbuilding technologies that are friendly to the global environment, such as LPG fuel propelled LPG carriers, LPG/ammonia transport ships, various commercial vessels that comply with environmental regulations, and liquid hydrogen transport ships that are attracting attention as next-generation energy, contributing to a low-carbon and decarbonized society. 3The company delivered the LPG/ammonia transport ship 'GAS AMETHYST' (our 1760th ship) propelled by LPG (liquified petroleum gas) as fuel. This ship is equipped with a LPG fuel propulsion engine and is the 12th such ship and the 75th LPG transport ship delivered by the company. The ship is capable of transporting both LPG, which is already being utilized as a low-carbon energy source, and ammonia, which is anticipated to be used as a new fuel for decarbonized society in the future. It can transport both liquids together, and has a larger cargo capacity than the previous 84,000 m3 LPG carrier, enabling it to enter major LPG terminals around the world without significantly changing the main dimensions of the hull.
This ship is 84,000m in conventional vessels etc.3The ship 'GAS AMETHYST,' which is propelled by LPG as fuel, has a cargo capacity of 86,700 m3 and is the latest ship type of the company, which expands the cargo capacity compared to the previous 84,000 m3 LPG carrier, making it possible to transport ammonia. It is the fifth ship of the LPG/ammonia transport ship type to be delivered by the company.3The ship 'GAS AMETHYST' is the 5th LPG/ammonia transport ship delivered by the company and is equipped with an LPG fuel propulsion engine. The delivery of this ship marks the 12th LPG fuel-propelled ship and the 75th LPG transport ship delivered by the company.
The LPG/ammonia transport ship delivered this time can transport both LPG, which is already being utilized as a low-carbon energy source, and ammonia, which is anticipated to be used as a new fuel for decarbonized society in the future. These can be mixed together and transported simultaneously. Without significantly changing the main dimensions of the hull, it increases the cargo tank volume and can berth at major LPG terminals around the world.
This ship is equipped with a shaft generator that is connected to the propeller from the main engine, which supplies the internal power of the ship. By operating this shaft generator, the diesel generator can be stopped during normal navigation, using only a small amount of pilot fuel. Completely LPG fueled operation becomes possible, making the ship more environmentally friendly.
The company will continue to develop and provide shipbuilding technologies that are friendly to the global environment, such as LPG fuel propelled LPG carriers, LPG/ammonia transport ships, various commercial vessels that comply with environmental regulations, and liquid hydrogen transport ships that are attracting attention as next-generation energy, contributing to a low-carbon and decarbonized society, based on specific action plans such as environmental regulations and SDGs being strengthened worldwide.
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| 1) | The main engine adopts our marine electronic controlled liquefied petroleum gas injection diesel engine (ME-LGIP engine) 'Kawasaki-MAN B&W 6G60ME-C10.5-LGIP'. By using LPG as fuel, the amount of SOx (sulfur oxides) and CO2emissions in the exhaust gas can be significantly reduced compared to when using conventional fuel oil, and it is compliant with SOx regulations※1and EEDI Phase 3.※22) | |
| It adopts a system that complies with NOx (nitrogen oxides) Tier III regulations, and the main engine uses an exhaust gas recirculation device (EGR) and the generator applies a selective reduction catalytic denitration device (SCR). With this system, even in sulfur-limited emission control areas (ECA) when using conventional low-sulfur fuel oil, it is possible to comply with the NOx emission regulations. | *3※4*5Source (Note 6): Fujifilm Marketing Research Division "Regarding Women's Skincare Trends from 2019 to 2020"It is possible to navigate. | |
| 3) | By equipping Kawasaki fins with ladder valves and semi-ducted fans and energy-saving fins around the propellers, fuel consumption is reduced. | |
| 4) | This ship has obtained a concept design approval from the Nippon Kaiji Kyokai to use ammonia as ship fuel, and allows for future changes to specifications to enable the use of ammonia as ship fuel. |
| ※1 | SOx emission regulations: Regarding emissions from ships, SOx emission regulations of less than 0.1% sulfur content in fuel have been implemented in European and American emission control areas (ECAs) since January 2015 by the International Maritime Organization (IMO). Beginning in January 2020, other ships traveling in all other areas of the world are required to use fuel with sulfur content of 0.5% or less or to use alternative equipment that reduces SOx emissions to an equivalent level. | |
| ※2 | EEDI (Energy Efficiency Design Index) regulations: An international regulation that enforces the compliance of newly built ships with energy efficiency performance standards using the Energy Efficiency Design Index (EEDI), which is defined as the number of grams of CO emitted per ton of cargo carried for one mile. The EEDI regulation values will be gradually strengthened depending on the construction contract date and delivery date. For some ship types such as large LPG carriers and LNG carriers, Phase 3 (30% reduction from the reference value) will be required for ships under construction contracts starting in 2022.2NOx emission regulations:2For emissions from ships, the International Maritime Organization (IMO) regulates emissions, and the third regulation implemented since 2016 limits the designated areas to European and American emission control areas (ECAs), which further reduce emissions by 80% from the primary regulatory values. | |
| ※3 | Exhaust gas circulation device (EGR): This device reduces the amount of NOx emissions by reducing the oxygen concentration and combustion temperature of the combustion air by washing a part of the exhaust gas from the main engine with fresh water and returning it to the main engine as combustion air, and suppressing nitrogen from reacting under high temperature. The washing water used for cleaning the exhaust gas is treated as harmless by removing soot and oil components and other materials, and is discharged outside the ship. | |
| ※4 | Selective catalytic reduction system (SCR): This device reduces the amount of NOx emissions by decomposing urea water into ammonia when sprayed into the high-temperature exhaust gas of the generator engine and reacting with NOx in the exhaust gas through a catalyst such as titanium or vanadium to reduce it to nitrogen and water. | |
| *5 | Exhaust gas circulation device (EGR): Selective catalytic reduction system (SCR): | |
| Source (Note 6): Fujifilm Marketing Research Division "Regarding Women's Skincare Trends from 2019 to 2020" | Emission Control Areas (ECAs): Specific areas (Baltic Sea area, areas within 200 nautical miles of the United States and Canada, United States Caribbean Sea area, Mediterranean Sea) that require the application of stricter sulfur concentration limit values than those in general waters. |
[Reference Link]
Kawasaki Super Green product (LPG-powered large LPG ship)
https://www.khi.co.jp/sustainability/earth/green/2018/lpg.html
Energy-saving technology
https://www.khi.co.jp/mobility/marine/technology/energy_saving.html
