Watts Energy Delivers the World’s First 7500CBM LCO2 Cargo Tank

Recently, the world’s first 7500cbm LCO2 cargo tank developed and built by Jiangsu Watts Energy (WE) for Dalian Shipbuilding Industry (DSIC) was successfully delivered.

LCO2 shipping is an important part of CCS(carbon capture and storage). In the past, LCO2 was mostly transported by pipelines, roads, railways, and other means in small batches. With the rapid development of the global carbon removal market, storage and transportation solutions for long-distance maritime transportation are urgently needed. The 7500cbm LCO2 tank developed by WE for DSIC is currently the world’s largest marine cargo tank for CCUS scheme.

This shipment is two liquid tanks for the first G7500 LCO2C, followed by other 3 ship sets of LCO2 tanks to be delivered to DSIC in sequence.

The cargo tank is an innovative design of Type-C tank developed by WE, applying a medium pressure and low-temperature design solution, approved by DNV. The single tank volume reaches 3750cbm with 19 bar (g) as design pressure.

The high-order solid finite element was first time to be introduced by WE design team for fatigue analysis for cargo tanks in marine area. This innovative method has provided a safety guarantee for the world’s first largest LCO2 cargo tank.

In addition, WE works with two suppliers (Angang Steel Group and KOBELCO) to develop special high-strength steel plates and welding consumables for the WPS and PWHT process to satisfy strict CTOD value requirements. The manufacturing capabilities of LCO2 cargo tanks have reached the world’s leading level in marine area.

In addition to cargo tanks, Cryolobe Gas Technology (CGT), an EPC contractor, subsidiary of WE, also provided a high-pressure LNG FGSS for the LCO2C, with two 250cbm LNG fuel tanks on the main deck. WE and CGT are making constructive contributions to green emission reduction in the shipbuilding industry.

Climate change is having a sustained and profound impact on the world, and the long-term goal of the Paris Agreement is to control the increase in global average temperature within 2 degrees Celsius compared with the pre-industrial period. Under the condition that it is not possible to completely give up fossil energy sources, CCS technology is a key technological means and a bottoming-out technological guarantee for realizing the temperature-control goal of the Paris Agreement. Meanwhile, with the European carbon trading market coming into operation, carbon dioxide has become a tradable commodity. WE firmly believes that the development of the LCO2 shipping market will significantly increase the volume of LCO2 transport and trading, making carbon neutrality and carbon peaking possible in the coming future.

WE is heading toward its goal of being a global leader in the LCO2 shipping market. In addition to the successful delivery of the 7,500cbm LCO2 cargo tank of medium pressure, WE has successfully developed solutions for larger capacity LCO2 tanks of low pressure, including the 12,000cbm Bi-lobe LCO2 Tank solution awarded AiP from DNV, and the 30,000cbm LCO2 Tank solution received AiP from CCS during Marintec China 2023.

Yangzijiang Shipbuilding

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