First AIP for Shanghai Bluesoul scrubber

Liu Xiaofeng and Jacky Chow sign the advisory service contract Liu Xiaofeng and Jacky Chow sign the advisory service contract
Industry Database

Shanghai Bluesoul Environmental Technology has been awarded an Approval in Principle (AIP) for its BlueSulf scrubber system.

The AIP was awarded by DNV GL and is said to be the first its kind for a scrubber according to its new rule set, and the first for a Chinese scrubber manufacturer.

Jacky Chow, chief operating officer of Shanghai Bluesoul, said: “We are very pleased to be the first Chinese supplier to receive this AIP and it demonstrates BlueSulf’s design in compliance with DNV GL class rules requirements, by using the sodium alkali method to clean exhaust gases.”

He added: “We have signed three scrubber projects with Chinese and European owners and we are also in negotiations for several potential retrofit and new building projects. Thanks to DNV GL’s extensive experience in scrubber technology and our continued collaboration, we are confident that we will gain a large share in the scrubber market.”

Shanghai Bluesoul’s Bluesulf scrubber is a hybrid system that can switch between open and closed loop mode. This type allows greater flexibility to adjust to changes in water salinity and requirements in different ports.

Able to operate both on seawater and fresh water, the design reduces the sulphur content in exhaust gas to 0.1 per cent or less, ensuring compliance with the requirements of the Chinese Emission Control Area that has been in force in eleven ports in China since 1 January 2017 and the upcoming global sulphur cap.

DNV GL will also provide advisory services to Bluesoul, including hardware-in-the-loop testing, simulations using the DNV GL COSMOSS tool and analyses using computational fluid dynamics (CFD).

“For us at DNV GL, this is the first project with a Chinese manufacturer, where we will provide such a comprehensive set of services, ranging from the initial AiP to advisory services and the final certification,” said Vincent Li, DNV GL maritime regional business development manager in Greater China.

He concluded: “This project is a global effort and involves our local specialists in China as well as support from scrubber classification and advisory experts based in Norway, Germany and Greece. We are very pleased about the trust Bluesoul has placed in us and look forward to working closely with the company now and in the future.”


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