CORRELATION AND PREDICTION OF CARBON DIOXIDE SOLUBILITY IN MDEA-MEA-H_2O SYSTEMS

李以圭

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CORRELATION AND PREDICTION OF CARBON DIOXIDE SOLUBILITY IN MDEA-MEA-H_2O SYSTEMS

更新时间：2025-12-16

- CORRELATION AND PREDICTION OF CARBON DIOXIDE SOLUBILITY IN MDEA-MEA-H_2O SYSTEMS
- CIESC Journal Issue 2, (1995)
- 作者机构：
  
  清华大学化工系,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q201
- Online First：25 April 1995，
  
  Published：25 April 1995
- 稿件说明：
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李以圭. CORRELATION AND PREDICTION OF CARBON DIOXIDE SOLUBILITY IN MDEA-MEA-H_2O SYSTEMS[J]. CIESC Journal, 1995, (2).
DOI：

李以圭. CORRELATION AND PREDICTION OF CARBON DIOXIDE SOLUBILITY IN MDEA-MEA-H_2O SYSTEMS[J]. CIESC Journal, 1995, (2). DOI：

摘要

通过简化Clegg-Pitzer方程无需增添调节参数

将甲基二乙醇胺（MDEA）-水、一乙醇胺（MEA）-水二元体系

CO_2-MDEA-H_2O、CO_2-MEA-H_2O三元体系气液平衡数据回归得到的相互作用参数用于预测CO_2-MDEA-MEA-H_2O四元体系的气液平衡数据。所预测四元体系中含有3种中性溶剂（MDEA、MEA和水）和4种离子（MDEAH~+、MEAH~+、HCO_3~-和RNHCOO_-）

并同时考虑了4个化学反应。

Abstract

The Clegg - Pitzer equations with some simplifications are used to correlate the vapor - liquid equilibrium data for the CO2 - MDEA - H2O and CO2 - MEA - H2O systems. The interaction parameters determined from the data for binary .ternary systems can be used to predict the quaternary systems without any additional parameters. The model is applied to the CO2 - MDEA - MEA - H2O system containing three neutral solvents (MDEA

MEA and H2O) and four ionic species (MDEAH+

MEAH+

HCO3- and RNHCOO-) with four chemical equilibria simultaneously involved.

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