Mitsubishi Shipbuilding, partners secure approval for low-pressure LCO2 carriers
Mitsubishi Shipbuilding, a division of Mitsubishi Heavy Industries (MHI), has received Approval in Principle (AiP) for two types of low-pressure liquefied CO2 (LCO2) carriers. This approval was granted by the American Bureau of Shipping (ABS) and Nippon Kaiji Kyokai (ClassNK) and was announced on September 18 during Gastech 2024 in Houston.
The AiP reflects a growing demand for LCO2 carriers, driven by various carbon capture and storage (CCS) projects that involve transporting CO2 from Japan to overseas storage sites. Mitsubishi Shipbuilding, along with Nihon Shipyard, Mitsui & Co., and Mitsubishi Corporation, has collaborated to standardise these carriers for use across multiple projects and establish a reliable supply chain within Japan. This effort aims to improve the efficiency of CCS value chains, according to MHI.
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The certified carriers are designed as low-pressure, long-distance vessels with capacities of 50,000m³ and 23,000m³. The certification includes provisions for using suitable cargo tank materials and the possibility of omitting post-welding heat treatment through an Engineering Critical Assessment (ECA) approach.
MHI remains committed to strengthening its energy transition strategies. Mitsubishi Shipbuilding is focused on advancing maritime industry standards both in Japan and globally, leveraging its marine engineering technologies. The company plans to continue developing LCO2 carriers and contributing to the CCS value chain through partnerships with both domestic and international stakeholders.