Global Onboard Carbon Capture System (OCCS) Market Strategic Research Report

Scope of the Report

The global Onboard Carbon Capture System (OCCS) market size is predicted to grow from US$ 73.37 million in 2025 to US$ 912 million in 2032; it is expected to grow at a CAGR of 43.6% from 2026 to 2032.

Onboard Carbon Capture System (OCCS) is a marine emission-reduction system installed on a newbuild or an existing vessel to treat exhaust gases generated by main engines, auxiliary engines and boilers. Following exhaust cooling and pretreatment, carbon dioxide is separated using conventional amine absorption, centrifugal intensified absorption, solid sorbents, alkaline mineralization or other capture processes. The captured carbon may be compressed, liquefied and stored in cryogenic tanks, retained in a carbon-rich solvent, or converted into stable carbonate solids for subsequent offloading, industrial utilization, synthetic-fuel production or permanent geological storage.

A complete OCCS normally incorporates exhaust-gas pretreatment, carbon absorption and regeneration or fixation, compression and liquefaction, onboard storage, automated control and emissions monitoring, and an offloading interface. It can be integrated into a newbuild, retrofitted to an existing vessel, or installed through a phased carbon-capture-ready configuration. Key performance indicators include rated capture capacity, design capture rate, specific energy consumption, footprint and weight, carbon dioxide purity, storage autonomy and the degree of integration with engines, boilers and waste-heat systems.

In 2025, the global shipment volume of Onboard Carbon Capture System (OCCS) is estimated at approximately 15 sets, with a price of approximately US$5 million per set and a gross margin of approximately 22% to 32%.

The international shipping industry is moving from an efficiency-led decarbonization phase toward a period in which fuel transition and absolute emissions reduction must progress simultaneously. Zero- and near-zero-carbon fuels remain constrained by production capacity, cost, bunkering infrastructure and vessel compatibility, while much of the existing ocean-going fleet still has a long remaining service life. OCCS allows shipowners to continue using established marine fuels while reducing direct carbon emissions and can be retrofitted to existing vessels. It is therefore evolving from a technology-validation tool into an asset that can control carbon exposure, improve vessel carbon intensity and extend the economic life of existing ships.

Market expansion remains constrained by energy consumption, onboard space and the availability of downstream carbon infrastructure. Conventional amine systems require absorbers, regeneration heat, compression and liquefaction equipment, and storage tanks, potentially increasing fuel consumption and reducing cargo capacity. Sulfur oxides, nitrogen oxides and particulate matter in the exhaust can also affect solvent life and operating stability. Recognition of captured carbon as a compliant emissions reduction depends on monitoring, reporting and verification, lifecycle accounting, port offloading, cross-border transportation and permanent-storage rules. Differences in machinery layouts and voyage profiles also make current projects highly customized, increasing engineering, certification and installation costs.

Near-term demand is expected to be concentrated among tankers, gas carriers, bulk carriers and large container ships with high fuel consumption, significant carbon-cost exposure and predictable port calls. The market is likely to progress from modular or capture-ready systems targeting 10% to 30% reductions toward full-process systems capable of capturing 60% to 90% of emissions and incorporating compression, liquefaction and onboard storage. As port receiving networks develop, industry revenue will extend beyond equipment sales to solvents and reagents, storage and liquefaction modules, remote monitoring, maintenance, carbon verification, and carbon transportation and disposal services, creating a broader ship-to-shore carbon-management market.

Key Questions Addressed in this Report

What is the 10-year outlook for the global Onboard Carbon Capture System (OCCS) market?

What factors are driving Onboard Carbon Capture System (OCCS) market growth, globally and by region?

Which technologies are poised for the fastest growth by market and region?

How do Onboard Carbon Capture System (OCCS) market opportunities vary by end market size?

How does Onboard Carbon Capture System (OCCS) break out by Type, by Application?

This report presents a comprehensive overview of the global Onboard Carbon Capture System (OCCS) market, covering market size and forecast, segmentation by product type and application, competitive landscape, leading players and regional and country-level outlook.

Segment by Type

• Up To 0.5 t/h
• Above 0.5 To 2.0 t/h
• Above 2.0 To 6.0 t/h
• Above 6.0 t/h

Segment by Design CO₂ Capture Rate

• Up To 30%
• Above 30% To 60%
• Above 60% To 80%
• Above 80%

Segment by Captured CO₂ Product Form

• Liquefied CO₂
• Solvent-Bound CO₂
• Solid Carbonate
• Others

Segment by Application

• Tankers and Gas Carriers
• Bulk Carriers
• Container Ships
• Others

Who Can Use This Report?

This report is written for decision-makers who need a clear, data-backed view of the global Onboard Carbon Capture System (OCCS) market:

• Manufacturers, suppliers and solution providers benchmarking their position and planning product, capacity and go-to-market strategy
• Distributors, channel partners and end users in Tankers and Gas Carriers, Bulk Carriers, Container Ships evaluating demand and sourcing options
• Investors, financial analysts and consultants assessing growth opportunities, competitive dynamics and M&A potential
• Government agencies, industry associations and research institutions tracking industry developments and policy impact