Study on CO<sub>2</sub> capture from ship exhaust and regeneration performances of compound amine solution systems based on AEP-AEEA-MDEA

LI Weikang; SUN Qiyuan; PENG Chaofei; YANG Tianyi; REN Xiaoqian

doi:10.12434/j.issn.2097-2547.20250039

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Study on CO₂ capture from ship exhaust and regeneration performances of compound amine solution systems based on AEP-AEEA-MDEA

更新时间：2025-12-25

- Study on CO₂ capture from ship exhaust and regeneration performances of compound amine solution systems based on AEP-AEEA-MDEA
- Vol. 50, Issue 12, Pages: 120-128(2025)
- 作者机构：
  
  南京工业大学化工学院，江苏南京 211816
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250039
  CLC： TQ028.1
- Received：25 January 2025，
  
  Revised：2025-03-26，
  
  Published：25 December 2025
- 稿件说明：
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李伟康,孙其源,彭超飞等.基于AEP-AEEA-MDEA的复配胺液体系对船舶尾气中CO₂的捕集与再生性能研究[J].低碳化学与化工,2025,50(12):120-128.

LI Weikang,SUN Qiyuan,PENG Chaofei,et al.Study on CO₂ capture from ship exhaust and regeneration performances of compound amine solution systems based on AEP-AEEA-MDEA[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(12):120-128.
李伟康,孙其源,彭超飞等.基于AEP-AEEA-MDEA的复配胺液体系对船舶尾气中CO₂的捕集与再生性能研究[J].低碳化学与化工,2025,50(12):120-128. DOI： 10.12434/j.issn.2097-2547.20250039.

LI Weikang,SUN Qiyuan,PENG Chaofei,et al.Study on CO₂ capture from ship exhaust and regeneration performances of compound amine solution systems based on AEP-AEEA-MDEA[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(12):120-128. DOI： 10.12434/j.issn.2097-2547.20250039.

摘要

船舶碳捕集、利用与封存（CCUS）技术是航运业规模化脱碳的有效方案，但空间、再生能耗和成本问题使船舶CCUS技术的实际应用面临巨大挑战。开发具有良好CO

吸收性能和循环性能，以及低再生能耗的胺液吸收体系是解决船舶CCUS技术应用难题的重要途径之一。针对船舶尾气的低CO

分压和高排放量特点，以N-氨乙基哌嗪（AEP）、羟乙基乙二胺（AEEA）和N-甲基二乙醇胺（MDEA）作为胺组分制备了一系列单组分、二元复配和三元复配胺液体系，并研究了不同胺液体系的CO

吸收与再生性能。结果表明，由质量分数分别为35%、16%、9%和40%的AEP、AEEA、MDEA和H

O组成的三元复配胺液体系（配方I）的CO

吸收与再生性能最佳，当吸收温度为40 ℃时，其CO

摩尔吸收量、CO

体积吸收量和CO

吸收速率分别为1.023 mol/mol、114.5 mL/g和2.13 × 10

-5

mol/(g·min)，较单乙醇胺（MEA）溶液（

= 30%）分别提高了84.3%、87.4%和1.75%；当再生温度为105 ℃时，配方I的最高再生速率、CO

再生量和再生率分别为4.68 × 10

-5

mol/(g·min)、0.919 mol/mol和89.9%，较MEA溶液分别提高了35.3%、64.3%和15.6%。同时，配方I具有较好的循环性能，在10次吸收-再生后，其再生率维持在90%左右。配方I在第一次吸收-再生中的再生能耗为2.54 GJ/t，较MEA溶液降低了34.7%。

Abstract

Shipboard carbon capture

utilization

and storage (CCUS) technology represents an effective solution

for large-scale decarbonization in the shipping industry. However

its practical application faces significant challenges due to spatial constraint

regeneration energy consumption

and cost issue. Developing amine solution absorption systems with superior CO

absorption capacity

cycling stability

and low regeneration energy consumption is a critical pathway to address these application barriers. Targeting the characteristics of low CO

partial pressure and high volume in ship exhaust

a series of single component

binary compound and ternary compound amine solution systems were prepared using N-aminoethyl piperazine (AEP)

hydroxyethyl ethylenediamine (AEEA) and N-methyldiethanolamine (MDEA) as amine components

and their CO

absorption and regeneration performances were investigated. The results show that the ternary compound amine solution system (formulation I) with mass fraction of AEP

AEEA

MDEA and H

O of 35%

16%

9% and 40%

respectively

exhibits optimal CO

absorption and regeneration performance. At the absorption temperature of 40 °C

mole absorption capacity

volumetric absorption capacity and absorption rate of formulation I are 1.023 mol/mol

114.5 mL/g and 2.13 × 10

-5

mol/(g·min)

respectively

representing increases of 84.3%

87.4% and 1.75% compared to monoethanolamine (MEA) solution (

= 30%). At the regeneration temperature of 105 ℃

formulation I achieves the maximum regeneration rate

regeneration capacity and regeneration efficiency of 4.68 × 10

-5

mol/(g·min)

0.919 mol/mol and 89.9%

respectively

corresponding to improvements of 35.3%

64.3% and 15.6% over MEA solution. Furthermore

formulation I maintains good cycling stability

retaining approximately regeneration efficiency of 90% after 10 absorption-regeneration cycles. The regeneration energy consumption of formulation I in the first absorption-regeneration is 2.54 GJ/t

which is 34.7% lower than that of MEA

solution.

关键词

Keywords

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School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan

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Study on CO2 capture from ship exhaust and regeneration performances of compound amine solution systems based on AEP-AEEA-MDEA

DOI：10.12434/j.issn.2097-2547.20250039

摘要

Abstract

关键词

Keywords

references

Study on CO₂ capture from ship exhaust and regeneration performances of compound amine solution systems based on AEP-AEEA-MDEA