SCREENING AND PERFORMANCE EVALUATION OF AN AMINE-BASED BIPHASIC SOLVENT FOR CARBON CAPTURE

ZHANG Lixin; ZHANG Shuangshuang; ZHANG Yuwei; CHEN Jingmin; AN Boru; ZHANG Lei

doi:10.13205/j.hjgc.202410023

Volume 42 Issue 10

Oct. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(10): 201-208

ZHANG Lixin, ZHANG Shuangshuang, ZHANG Yuwei, CHEN Jingmin, AN Boru, ZHANG Lei. SCREENING AND PERFORMANCE EVALUATION OF AN AMINE-BASED BIPHASIC SOLVENT FOR CARBON CAPTURE[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(10): 201-208. doi: 10.13205/j.hjgc.202410023

Citation:

ZHANG Lixin, ZHANG Shuangshuang, ZHANG Yuwei, CHEN Jingmin, AN Boru, ZHANG Lei. SCREENING AND PERFORMANCE EVALUATION OF AN AMINE-BASED BIPHASIC SOLVENT FOR CARBON CAPTURE[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(10): 201-208. doi: 10.13205/j.hjgc.202410023

Citation:

ZHANG Lixin, ZHANG Shuangshuang, ZHANG Yuwei, CHEN Jingmin, AN Boru, ZHANG Lei. SCREENING AND PERFORMANCE EVALUATION OF AN AMINE-BASED BIPHASIC SOLVENT FOR CARBON CAPTURE[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(10): 201-208. doi: 10.13205/j.hjgc.202410023

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SCREENING AND PERFORMANCE EVALUATION OF AN AMINE-BASED BIPHASIC SOLVENT FOR CARBON CAPTURE

doi: 10.13205/j.hjgc.202410023

1. School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China;
2. China National Heavy Machinery Research Institute Co., Ltd., Xi'an 710018, China

Received Date: 2023-12-20
Available Online: 2024-11-30

Abstract

Abstract

Compared with the traditional organic amine absorber, 30% MEA, the biphasic solvent has more significant development advantages in reducing the energy consumption of CO₂ capture. In this paper, monoethanolamine (MEA), hydroxyethyl ethylenediamine (AEEA), diethylenetriamine (DETA) and triethylenetetramine (TETA) with different amino structures were selected as the main absorbers and compounded with the phase-splitting agent diethylethanolamine (DEEA) and water in the ratio of 1∶2∶1, to construct four different biphasic absorption systems. Through a comparative study of their phase splitting performance, absorption-desorption performance, and viscosity characteristics, DEEA+DETA was selected as the most promising biphasic absorption system, and its regeneration energy consumption and cycle stability were investigated in detail. The results showed that the biphasic solvent of DEEA+DETA, with a wide range of split-phase loading and moderate viscosity, has an absorption load of up to 3.26 mol/L, a cyclic capacity of 2.52 mol/L, and a low regeneration energy consumption of 2.55 GJ/t CO₂, 32.9% lower than that of 30% MEA. It still maintained high absorption-desorption performance and good cyclic stability after 10 cycles.
- CO₂ capture,
- biphasic solvent,
- regeneration energy consumption,
- absorption-desorption performance,
- cycling performance

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References(34)

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