Guangzhou Shipyard International delivers its first oil tanker with built-in desulfurization capabilities.

2018-10-16 09:00

On October 15, Guangzhou Shipyard International delivered the fourth 114,000-ton LRII type crude oil/product tanker, "TROM HILDE," built for Denmark's TORM A/S.

The vessel, with an overall length of 250 meters, a molded breadth of 44 meters, and a molded depth of 21.5 meters, meets the latest regulations of the International Maritime Organization (IMO) 2020 sulfur emission limits. It is the first environmentally friendly vessel built by GuangZhou Shipyard International equipped with a desulfurization scrubber, and also the first vessel in TORM's fleet to be fitted with such a device.

With increasingly stringent coastal regulations on sulfide emissions worldwide, the global limit on sulfide emissions has been reduced from 4.5% to 3.5% since 2012, and will be further reduced to 0.5% by 2020. Since January 1, 2015, a 0.1% sulfur content limit has been implemented in the four Emission Control Areas (ECAs) designated by the IMO, mainly including the North Sea, Baltic Sea, North America, and the Caribbean Sea ECA regions of the United States.

While using low-sulfur diesel (MGO) can meet sulfur emission limits, the cost of MGO is 50% to 60% higher than that of heavy oil. Exhaust gas wet scrubbing desulfurization systems, however, offer significant desulfurization effects (removal rate exceeding 90%) and can effectively reduce particulate matter emissions, making them the preferred choice.

The introduction of the "sulfur cap" presents both challenges and opportunities for shipbuilding enterprises. Those who can first master and thoroughly understand the design, installation, and commissioning technology of desulfurization systems will inevitably gain a competitive edge in the market.

Guangzhou Shipyard International, known for its personalized services and favored by ship owners, immediately contacted the ship owner TORM after learning that the owner wanted to install a desulfurization system on its fourth 114,000-ton LRII type crude oil/product tanker. They decided to install the system on the vessel, even though it wasn't originally planned.

After discussions with the ship owner and several equipment manufacturers on the system and its layout, it was decided to install the most complex hybrid desulfurization system on the fourth 114,000-ton LRII type crude oil/product tanker.

During this period, the employees involved overcame a series of difficulties, including insufficient space for installation on the ship, long procurement cycles for materials, and high difficulty in construction operations, successfully overcoming numerous obstacles.

The vessel was named on August 28, and the first sea trial was completed at that time. However, due to factors such as high exhaust backpressure from the exported equipment, the sea trial results for the desulfurization device were not ideal. After returning to port and consulting with the manufacturer, the desulfurization system required a second modification. On September 20, the "TROM HILDE" successfully commenced its second sea trial. During the second sea trial, the desulfurization device performed perfectly.

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