Thermodynamic modeling and process simulation for CO<sub>2</sub> absorption into aqueous monoethanolamine solution

LI Han; CHEN Jian

doi:10.3969/j.issn.0438-1157.2014.01.006

您当前的位置：

首页 >

文章列表页 >

Thermodynamic modeling and process simulation for CO₂ absorption into aqueous monoethanolamine solution

更新时间：2025-12-10

- Thermodynamic modeling and process simulation for CO₂ absorption into aqueous monoethanolamine solution
- CIESC Journal Issue 1, Pages: 47-54(2014)
- 作者机构：
  
  清华大学化学工程联合国家重点实验室,北京,100084
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.01.006
  CLC： Q028.8
- Online First：05 January 2014，
  
  Published：05 January 2014
- 稿件说明：
移动端阅览
LI Han, CHEN Jian. Thermodynamic modeling and process simulation for CO₂ absorption into aqueous monoethanolamine solution[J]. CIESC Journal, 2014, (1): 47-54. DOI: 10.3969/j.issn.0438-1157.2014.01.006.
DOI：

LI Han, CHEN Jian. Thermodynamic modeling and process simulation for CO₂ absorption into aqueous monoethanolamine solution[J]. CIESC Journal, 2014, (1): 47-54. DOI: 10.3969/j.issn.0438-1157.2014.01.006. DOI：

摘要

采用非随机双流体电解质（ENRTL）热力学模型，通过拟合单乙醇胺（MEA）的饱和蒸气压、热容数据，MEA和水（H2O）二元体系的汽液平衡、热容、混合热数据，以及二氧化碳（CO2）在MEA水溶液中的溶解度数据，建立了MEA吸收CO2的热力学模型，并用核磁共振（NMR）组成数据成功地进行了验证。在此模型基础上，利用平衡级模型建立了MEA吸收/解吸CO2的过程模拟，利用文献中中试工厂数据验证了过程模拟的准确性。对于质量分数为30%的MEA溶液，固定吸收塔CO2去除率为90%的条件下，当吸收塔液气质量流率比值为2时，再沸器能耗最小，为3.64 GJ·（t CO2）-1。

Abstract

A thermodynamic model for monoethanolamine (MEA)-H2O-CO2 was built using the electrolyte non-random two-liquid model. Over twenty parameters were regressed from the vapor pressure and heat capacity data for MEA

data of vapor-liquid equilibrium

heat capacity and heat of mixing for MEA-H2O

and CO2 solubility data for MEA-H2O-CO2 over a wide range of temperature

concentration and CO2 loading. The model was validated by the NMR speciation data and then used to build a process simulation for CO2 absorption/ desorption into 30%(mass) MEA. The simulation results match the pilot plant data in literature. For 30%(mass) MEA solution

when the CO2 removal rate in the absorber is 90%

the reboiler heat duty is the minimum by changing the mass flow ratio of liquid to gas in the absorber. The minimum reboiler heat duty is 3.64 GJ·(t CO2)-1

when the ratio is 2.

关键词

Keywords

references

Views

4010

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of sulfolane on CO2 absorption and desorption by monoethanolamine aqueous solution

CO2 absorption properties of supported [APMIm][Br]

Absorption performance and stratification mechanism of biphasic CO2 absorbent[Bmim] [BF4]/MEA aqueous mixtures

Kinetic study on thermal decomposition of GFRP under γ irradiation

Research progress of ozone oxidation denitrification technology

Related Author

GUO Dongfang

GAO Shiwang

LUO Weiliang

CHEN Jian

CHEN Yifeng

WANG Changsong

DING Jian

YANG Zhuhong

Related Institution

Huaneng Clean Energy Research Institute

State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University

State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University

CSIRO Manufacturing, Clayton

Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Beijing Engineering Research Center for Ecological Restoration and Carbon Fixation of Saline-Alkaline and Desert Land, Department of Energy and Power Engineering, Tsinghua University

⁰

Thermodynamic modeling and process simulation for CO2 absorption into aqueous monoethanolamine solution

DOI：10.3969/j.issn.0438-1157.2014.01.006

摘要

Abstract

关键词

Keywords

references

Thermodynamic modeling and process simulation for CO₂ absorption into aqueous monoethanolamine solution