| MDEA水溶液对CO_2吸收速率的测定 |
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| 引用本文： | 陈健,贺刚,刘金晨,刘键. MDEA水溶液对CO_2吸收速率的测定[J]. 清华大学学报(自然科学版), 2001, 41(12) |
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| 作者姓名： | 陈健 贺刚 刘金晨 刘键 |
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| 作者单位： | 1. 清华大学化学工程系,北京,100084
2. 中国石油天然气公司,乌鲁木齐石化总厂,乌鲁木齐,830019 |
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| 摘 要： | 为了精确测定气体吸收动力学的数据 ,建立了一套采用计算机数据采集系统的实验装置 ,改进了数据采集软件。气体吸收压力数据的测定精度为 0 .0 5 %。测定了在石油化工、天然气净化和合成氨工业中常用的 N-甲基二乙醇胺(质量分数 32 .4 % ) +哌嗪 (2 .6 % )水溶液吸收 CO2 的动力学速度 ,并根据阻尼膜理论建立了相应的吸收动力学计算公式 ,可用于实际体系的吸收动力学计算
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| 关 键 词： | 气体吸收 动力学 N-甲基二乙醇胺(MDEA) CO2 |
Measurement for the absorption rate of CO_2 by aqueous MDEA solution |
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| CHEN Jian ,HE Gang ,LIU Jinchen ,LIU Jian. Measurement for the absorption rate of CO_2 by aqueous MDEA solution[J]. Journal of Tsinghua University(Science and Technology), 2001, 41(12) |
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| Authors: | CHEN Jian HE Gang LIU Jinchen LIU Jian |
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| Affiliation: | CHEN Jian 1,HE Gang 1,LIU Jinchen 1,LIU Jian 2 |
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| Abstract: | Equipment to measure kinetic data for gas absorption was improved with a series of modifications including a computer data acquisition system and improved data acquisition software. The improvements significantly decrease the measurement error of the system pressure from 0.3% to 0.05%. Kinetic data was then measured for the absorption rate of a N methyl diethanol amine (MDEA) piperazine water carbon dioxide system, which is widely used in the petrochemical industry, natural gas purification and amine synthesis. An equation for the absorption rate was obtained using stagnant film theory which equation can be used in process simulations. |
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| Keywords: | gas absorption kinetics methyl diethanol amine (MDEA) CO 2 |
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