烟气碳捕集耦合催化强化再生技术过程模拟与评价分析

张杰; 蒋金生; 詹国雄; 赵杰; 陈阵; 李俊华

doi:10.13205/j.hjgc.202509015

烟气碳捕集耦合催化强化再生技术过程模拟与评价分析

doi: 10.13205/j.hjgc.202509015

张杰¹,
蒋金生²,
詹国雄^3, ,,
赵杰¹,
陈阵³,
李俊华³

1. 国家管网集团西部管道有限责任公司, 乌鲁木齐 830011;
2. 国家石油天然气管网集团有限公司甘肃分公司, 兰州 730070;
3. 清华大学环境学院, 北京 100084

基金项目:

国家重点研发计划（2023YFF0614304）；天然气管道燃气轮机尾气低浓度二氧化碳捕集吸收剂性能测试评价项目（20242001290）

详细信息

作者简介:
张杰，博士研究生，高级工程师，开展油气管道低碳运行技术、环境风险规律及管控技术等研究。zhangjie01@pipechina.com.cn

通讯作者:
詹国雄（1990—），男，博士，助理研究员，主要从事工艺过程建模、评价及优化研究。t862646071@126.com

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出版历程
- 收稿日期: 2024-08-21
- 网络出版日期: 2025-11-05
- 刊出日期: 2025-09-01

Simulation and evaluation of a flue gas carbon capture process coupled with catalytically-enhanced regeneration technology

1. National Pipeline Network Group Western Pipeline Co., Ltd., Urumqi 830011, China;
2. Gansu Branch, National Petroleum and Natural Gas Pipeline Group Co., Ltd., Lanzhou 730070, China;
3. School of Environment, Tsinghua University, Beijing 100084, China

摘要

摘要: 在国家碳达峰、碳中和的背景下，如何实现低成本高效的烟气碳捕集具有重要意义。MEA吸收工艺作为当前最成熟的烟气捕集方案，被广泛应用于各行业的碳捕集过程中，催化强化再生手段在降低过程再生能耗方面有着重要作用。通过结合Aspen Plus工艺过程模拟手段，对常规和催化强化再生的MEA烟气脱碳过程进行模拟研究分析，以明晰催化强化再生手段的技术先进性。首先，采用Aspen Plus模拟烟气脱碳过程，探究常规MEA吸收过程的吸收温度、气液比、解吸温度等主要工艺操作参数对吸收效果的影响，获得MEA吸收解吸影响规律和工艺能耗低的操作方案。其次，基于催化假设，构建催化强化再生的MEA脱碳工艺过程，分析操作参数的影响变化趋势，获得能耗最低的操作方案。之后，对2种低能耗工艺的操作方案进行评价，以探究催化工艺技术优势。研究结果表明，催化强化再生手段可以有效提高解吸速率和CO₂的循环吸收量。在工艺再生能耗方面，相比于常规吸收过程，催化强化再生工艺过程可降低再生能耗约24%，能耗成本减少约43元/t CO₂。研究结果可以为开发低能耗碳捕集技术提供必要技术支持。
- 催化强化再生 /
- 烟气碳捕集 /
- 过程建模 /
- Aspen Plus /
- 工艺评价
Abstract: Under the background of national carbon peak and carbon neutrality in China，achieving low-cost and high-efficiency flue gas carbon capture is of great significance. As the most mature flue gas capture scheme， MEA absorption technology has been widely used in various industries carbon capture processes. The catalytically-enhanced regeneration method plays an important role in reducing the energy consumption in processes. In this work， by combining the process simulation approach in Aspen Plus， the conventional and catalytically-enhanced regeneration of MEA flue gas decarbonization processes were simulated and analyzed， aiming to clarify the technical advantages of the catalytically-enhanced regeneration method. Firstly， Aspen Plus was employed to simulate the conventional MEA flue gas decarbonization process， examining the impact of key operational parameters such as absorption temperature， gas-liquid ratio， and desorption temperature on the absorption efficiency. This analysis provided insights into the optimal operation of the MEA absorption and desorption processes， as well as an energy-efficient operational scheme. Secondly， by incorporating a catalytic hypothesis， a MEA decarbonization process with catalytically-enhanced regeneration was developed and simulated. By analyzing the trend of operational parameters， the most energy-efficient operational scheme was obtained. A comparative analysis of the energy-saving operation schemes between the two processes revealed the technical advantages of the catalytic technology. The results showed that the catalytically-enhanced regeneration method effectively improved the desorption rate and the recycling amount of CO₂ absorption. In terms of the energy consumption in processes， the catalytically-enhanced regeneration process reduced energy consumption by approximately 24% compared to conventional processes. The energy consumption cost could be reduced by approximately 43 RMB/t CO₂. The results can provide essential technical support for developing low-energy consumption carbon capture technologies.
- catalytically-enhanced regeneration /
- flue gas carbon capture /
- process simulation /
- Aspen Plus /
- prcoess evaluation

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