Decarbonizing FPSO Carbon Capture

Reduction of GHG Emissions from FPSOs

MODEC is actively developing carbon capture technologies to significantly reduce greenhouse gas (GHG) emissions from our FPSO vessels. By capturing carbon dioxide (CO2) produced during offshore oil production before it is released into the atmosphere, we aim to contribute to a global decarbonization efforts.

Our approach integrates Post-Combustion Carbon Capture with our existing expertise in Pre-Combustion Carbon Capture and deep-sea underground storage. Together with newly developed technologies, this strategy enables us to achieve substantial reductions in CO2 emissions.

  • Pre-Combustion Capture
    A method aimed at removing CO2 from fossil fuels before the combustion of fuel gases. Amine absorption and membrane separation are utilized for this process
  • Post-Combustion Capture
    A method to separate CO2 from flue gases of the combustion sources. A common method involves using an amine solution, wherein the CO2 present in the flue gas is absorbed by the amine solution and subsequently separated.
  • Amine Solution-Based Method
    This chemical absorption process cools exhaust gas and absorbs CO2 into an amine solution. While amine-based solvents efficient, challenges arise due to the large size of the absorption tower required for high-flow, low-pressure, and low CO2 concentration fuel gas. This poses installation footprint challenges on floating facilities.

Technology Development Initiatives

MODEC is advancing post-combustion carbon capture (PCC) technology through short-term, mid-term, and long-term initiatives. These efforts ensure readiness for immediate implementation while driving future breakthroughs.

Technology Development Initiatives

Short Term: Pre-emptive Feasibility Studies of Conventional PCC Processes

Our short-term goal is to materialize PCC in upcoming FPSO projects using the amine solution-based method. This method has proven effective in onshore PCC projects by others and offshore applications like gas sweetening in our offshore projects. Collaboration with licensors on basic design and engineering is underway to prepare for deployment.

Mid/Long Term: Development of Fit-for-purpose Solutions for FPSOs

In the mid and long term, we aim to develop advanced PCC technologies tailored to FPSO-specific conditions. This includes addressing challenges such as the large footprint of amine adsorption towers and optimizing processes for offshore environments.

Key Focus Areas

  1. 1Footprint Reduction Technologies
    Offshore facilities face spatial constraints compared to onshore power plants. We are developing solutions to minimize the size of carbon capture systems while maintain efficiency.

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  1. 2Energy-saving PCC Operations
    FPSOs require significant thermal energy for crude oil separation. Energy-efficient CO2 separation methods are being developed to enhance overall operational efficiency.

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  1. 3 Fuel Cells Integration
    Gas turbines employed in FPSOs produce exhaust gas with low CO2 concentrations, making PCC less efficient. Fuel cells, which generate power with exhaust gas composed primarily of water and CO2 offer a promising alternative. Their high CO2 concentration could drastically reduce the capital expenditure (CAPEX) of PCC systems.

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