Study on Shipboard Carbon Capture Technology with the MEA-AMP-Mixed Absorbent Based on Ship Applicability Perspective

Area of Science:

• Marine Engineering
• Environmental Science
• Chemical Engineering

Background:

• Marine diesel engines are significant CO2 emitters, necessitating onboard carbon capture solutions.
• Developing efficient shipboard carbon capture technology is critical for environmental protection.

Purpose of the Study:

• To investigate the CO2 absorption and desorption process using a mixed amine solution (MEA + AMP) for shipboard applications.
• To analyze key parameters like cycle time, absorption capacity, and energy consumption for effective carbon capture.

Main Methods:

• Studied CO2 absorption and desorption using a mixed amine solution (MEA + AMP).
• Compared performance metrics including effective cycle time, CO2 absorption capacity, desorption efficiency, and energy consumption.
• Analyzed foaming and volatilization characteristics under shipboard conditions.

Main Results:

• The MEA20% + AMP10% solution exhibited favorable CO2 absorption performance.
• Achieved over 50% desorption efficiency at 80% capture efficiency.
• Absorption capacity was comparable to MEA30%, with similar cycle times.
• Determined effective cycle time at a 2s reaction time, impacting desorption frequency and energy use.

Conclusions:

• The mixed amine solution (MEA20% + AMP10%) is a viable option for shipboard carbon capture.
• Optimizing effective cycle time is key to reducing energy consumption in desorption.
• This research provides valuable insights for implementing carbon capture devices on real ships.