| 董 野,王婉申,张思腾,孙 倩,张鹏宇.水泥窑用混合胺二氧化碳吸收剂的实验研究[J].水泥工程,2023,36(5):9-13 |
| 水泥窑用混合胺二氧化碳吸收剂的实验研究 |
| Experimental study on mixed amine carbon dioxide absorbent used in cement kilns |
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| DOI： |
| 中文关键词: 水泥窑烟气,混合胺,碳捕集,AMP,DETA |
| 英文关键词: cement kiln gas,mixed amine, carbon capture, AMP,DETA |
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| 中文摘要: |
| 本实验以2-氨基-2-甲基-1-丙醇(AMP)和二乙烯三胺(DETA)为吸收剂，探究了二者在不同配比下的吸收解吸性能，并与其他醇胺复配，开发出一种高性能混合胺二氧化碳吸收剂。实验发现AMP-DETA二元体系的吸收解吸性能均优于传统的乙醇胺(MEA)溶液，当AMP∶DETA=1∶1时，综合性能最优，物质的量负载为0.73 mol/mol，解吸率为82.99%。在此配比下进行三元复配时，加入哌嗪(PZ)可使吸收剂的初始吸收速率提升38.57%，三乙烯四胺(TETA)可使吸收剂的CO2物质的量负载提升36.99%，而N-甲基二乙醇胺(MDEA)可缩短1/3的解吸时间，从不同维度降低再生能耗。 |
| 英文摘要: |
| In this study, the absorption and desorption properties of absorbent with different proportions of 2-amino-2-methyl-1-propanol (AMP) and diethylenetriamine (DETA) were explored, and a high-performance mixed amine carbon dioxide absorbent was developed by further compounding with other alcohol amines. The experimental results showed that the absorption and desorption performance of AMP-DETA binary system was better than that of traditional ethanolamine (MEA) solution, and the comprehensive performance of the absorbent with the ratio of AMP to DETA of 1∶1 was the best, with a molar load of 0.73 mol/mol and a desorption rate of 82.99%. Under this ratio, the initial absorption rate of absorbent could be increased by 38.57% by adding piperazine (PZ), the molar load of CO2 could be increased by 36.99% by adding tetraethylenetriamine (TETA), and the desorption time could be shortened by one third by adding N-methyldiethanolamine (MDEA), thus reducing the energy consumption of regeneration from different dimensions. |
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