Preparation of Co-Ni bimetallic catalyst and its effect on CO<sub>2</sub> desorption regeneration performance of CO<sub>2</sub>-rich MEA solution

LI Kefei; DAI Yawen; JING Qiang; REN Mengqing; LI Yuchen; WANG Lidong

doi:10.12434/j.issn.2097-2547.20260041

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Preparation of Co-Ni bimetallic catalyst and its effect on CO₂ desorption regeneration performance of CO₂-rich MEA solution

更新时间：2026-07-28

- Preparation of Co-Ni bimetallic catalyst and its effect on CO₂ desorption regeneration performance of CO₂-rich MEA solution
- Pages: 1-13(2026)
- 作者机构：
  
  1.华北电力大学环境科学与工程学院，北京 102206
  2.广东华润碳能科技有限公司，广东深圳 518000
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20260041
  CLC： TQ53;X7
- Received：26 January 2026，
  
  Revised：2026-03-12，
  
  Online First：28 July 2026，
- 稿件说明：
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李柯菲,代雅雯,景强等.钴镍双金属催化剂的制备及其对富乙醇胺溶液CO₂解吸再生性能的影响[J].低碳化学与化工,DOI:10.12434/j.issn.2097-2547.20260041.

LI Kefei,DAI Yawen,JING Qiang,et al.Preparation of Co-Ni bimetallic catalyst and its effect on CO₂ desorption regeneration performance of CO₂-rich MEA solution[J].Low-Carbon Chemistry and Chemical Engineering,DOI:10.12434/j.issn.2097-2547.20260041.
李柯菲,代雅雯,景强等.钴镍双金属催化剂的制备及其对富乙醇胺溶液CO₂解吸再生性能的影响[J].低碳化学与化工,DOI:10.12434/j.issn.2097-2547.20260041. DOI：

LI Kefei,DAI Yawen,JING Qiang,et al.Preparation of Co-Ni bimetallic catalyst and its effect on CO₂ desorption regeneration performance of CO₂-rich MEA solution[J].Low-Carbon Chemistry and Chemical Engineering,DOI:10.12434/j.issn.2097-2547.20260041. DOI：

摘要

醇胺富液在再生阶段普遍存在热负荷高和CO

解吸速率低等问题。为解决这一系列问题，采用级联合成法制备了一种钴

镍双金属催化剂（NiCo-NC）。采用SEM、TEM和XRD等表征了NiCo-NC的结构，并以钴单金属催化剂（Co-NC）和镍单金属催化剂（Ni-NC）为对比，研究了其在富乙醇胺溶液（MEA富液）CO

解吸过程中的催化性能。结果表明，在91.2 ℃下，NiCo-NC作用下MEA富液的CO

最高解吸速率和CO

解吸量分别为8.3 mmol/min和136.1 mmol，优于Co-NC（7.4 mmol/min和124.3 mmol）和Ni-NC（7.3 mmol/min和107.8 mmol）。同时，NiCo-NC作用下相对解吸能耗较低（34.6%）。此外，NiCo-NC对醇胺溶液的催化解吸有一定适应性，并表现出良好的稳定性。

Abstract

The regeneration stage of amine solutions commonly suffers from high thermal energy demand and slow CO

desorption rate. To overcome these problems

a Co-Ni bimetallic catalyst (NiCo-NC) was prepared via cascade synthesis method. The structure of NiCo-NC was characterized by SEM

TEM and XRD

and its catalytic performance in CO

desorption process from a rich monoethanolamine solution (MEA) was investigated

with the Co monometallic catalyst (Co-NC) and Ni monometallic catalyst (Ni-NC) as comparison groups. The results indicated that at 91.2 ℃

MEA-rich solution achieves the maximum CO

desorption rate of 8.3 mmol/min and the CO

desorption amount of 136.1 mmol with NiCo-NC

outperforming Co-NC (7.4 mmol/min and 124.3 mmol) and Ni-NC (7.3 mmol/min and 107.8 mmol). Meanwhile

the relative desorption energy consumption with NiCo-NC is low (34.6%). In addition

NiCo-NC exhibits a certain adaptability to the catalytic desorption of alcohol amine solutions and demonstrates good stability.

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Preparation of Co-Ni bimetallic catalyst and its effect on CO2 desorption regeneration performance of CO2-rich MEA solution

DOI：10.12434/j.issn.2097-2547.20260041

摘要

Abstract

关键词

Keywords

references

Preparation of Co-Ni bimetallic catalyst and its effect on CO₂ desorption regeneration performance of CO₂-rich MEA solution