| 超重力强化AMP-PZ复合溶液脱碳技术及表观动力学 |
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| 引用本文： | 栗秀萍,于洋,何旺,吕俊辉.超重力强化AMP-PZ复合溶液脱碳技术及表观动力学[J].化工进展,2022,41(Z1):22-28. |
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| 作者姓名： | 栗秀萍 于洋 何旺 吕俊辉 |
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| 作者单位： | 1.中北大学化学工程与技术学院，山西 太原 030051;2.超重力化工过程山西省重点实验室，山西 太原 030051 |
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| 摘 要： | 为提高工业上火电厂乙醇胺（MEA）吸收塔脱碳工艺中脱碳率和反应速率，提出了超重力技术耦合2-氨基-2-甲基-1-丙醇-对二氮己环（AMP-PZ）混合胺脱碳方法。正交实验表明：不同操作参数对脱碳率的影响显著性大小依次为：超重力因子、气液比、吸收剂质量浓度、主吸收剂含量、温度；最佳操作条件为：超重力因子为60，气液比为15，吸收剂质量分数为25%，主吸收剂质量分数为60%，温度为25℃，CO2脱除率可达97.16%。相对传统的乙醇胺（MEA）吸收塔法，CO2脱除率提高了7.16%。相同操作条件下，旋转填料床的脱碳反应速率常数比曝气反应装置高一倍。建立了超重力场中AMP-PZ脱碳表观动力学模型，不同操作参数对反应速率常数的显著性影响大小依次为：超重力因子>气液比>吸收剂质量浓度。
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| 关 键 词： | 2-氨基-2-甲基-1-丙醇 对二氮己环 二氧化碳 超重力 传质 正交试验 表观动力学 |
| 收稿时间： | 2021-12-07 |
High-gravity intensified decarburization process and apparent kinetics of AMP-PZ composite solution |
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| LI Xiuping,YU Yang,HE Wang,LYU Junhui.High-gravity intensified decarburization process and apparent kinetics of AMP-PZ composite solution[J].Chemical Industry and Engineering Progress,2022,41(Z1):22-28. |
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| Authors: | LI Xiuping YU Yang HE Wang LYU Junhui |
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| Affiliation: | 1.North University of China, School of Chemical Engineering and Technology, Taiyuan 030051, Shanxi, China
2.Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, Taiyuan 030051, Shanxi, China |
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| Abstract: | To improve the efficiency and rate of absorption process of thermal power plant for CO2 removal using ethanolamine (MEA), the high-gravity intensification technology was applied and coupled with 2-amino-2-methyl-1-propanol and piperazine (AMP-PZ) to absorb CO2 in waste gas. The results of orthogonal test showed that the significance of different operating parameters on the CO2 removal efficiency was in order from high to low as follows: high-gravity factor, gas-liquid ratio, absorbent mass concentration, main absorbent content and temperature. The optimal operating parameters were obtained with the high-gravity factor of 60, gas-liquid ratio of 15, absorbent mass concentration of 25%, and main absorbent content of 60%, under which the CO2 removal efficiency could reach 97.16%. Compared with the results of conventional absorption tower process with ethanolamine (MEA), the CO2 removal efficiency increased by 7.16%. The reaction rate constant for CO2 removal was two times that of aeration reaction equipment. A kinetic model of CO2 absorption by a blend of AMP-PZ was established in high gravity field. |
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| Keywords: | AMP PZ carbon dioxide high-gravity mass transfer orthogonal test absorption kinetic model |
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