Current status and prospects of amine escape monitoring technology for carbon capture units

ZHAO Yiqi; WANG Dongbin; LI Zhiyuan; CHEN Yan; DENG Jianguo; JIANG Jingkun

doi:10.13205/j.hjgc.202510011

Volume 43 Issue 10

Oct. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(10): 95-102

ZHAO Yiqi, WANG Dongbin, LI Zhiyuan, CHEN Yan, DENG Jianguo, JIANG Jingkun. Current status and prospects of amine escape monitoring technology for carbon capture units[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(10): 95-102. doi: 10.13205/j.hjgc.202510011

Citation:

ZHAO Yiqi, WANG Dongbin, LI Zhiyuan, CHEN Yan, DENG Jianguo, JIANG Jingkun. Current status and prospects of amine escape monitoring technology for carbon capture units[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(10): 95-102. doi: 10.13205/j.hjgc.202510011

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Current status and prospects of amine escape monitoring technology for carbon capture units

doi: 10.13205/j.hjgc.202510011

1. State Key Laboratory of Regional Environmental Safety, School of Environment, Tsinghua University, Beijing 100084, China

Received Date: 2025-03-07
Accepted Date: 2025-04-11
Rev Recd Date: 2025-04-09

Available Online: 2025-12-03

Publish Date: 2025-10-01

Abstract

Abstract

Stationary sources are the major anthropogenic emitters of carbon dioxide in China， making carbon emission reduction from stationary sources a key strategy for achieving China’s Dual Carbon goals. Amine absorption-based carbon capture systems are currently the most widely used technology for CO₂ emissions control from stationary sources and are gradually promoted globally. The escape of amines and their degradation products with flue gas is a concern for this technology. Studies have shown that the concentration of escaped amine can reach levels as high as several tens μg/m³， which not only increases the operating cost of carbon capture systems but also poses potential risks to environmental quality and human health. At present， the understanding of amine emissions from stationary sources is still relatively limited. One of the main reasons is the lack of amine emission limit and monitoring technology specifications， which hinders in-depth understanding and regulatory oversight of amine escape. This paper reviews the current monitoring technologies for amine escape from stationary sources， including offline sampling and analysis technology， as well as online monitoring technologies such as Fourier Transform infrared spectroscopy （FTIR） and proton transfer reaction mass spectrometry （PTR-MS）， covering their basic principles and application status. We also discussed the applicability of these technologies in monitoring amine emissions in light of current monitoring needs and provided an outlook on future development of related novel technologies.
- stationary sources,
- carbon capture,
- alkaline gas,
- amine escape,
- monitoring technology

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References(52)

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