Utilization of “instantaneous molecule cluster” hypothesis to predict VLE in CO<sub>2</sub> absorption using alkanes

TANG Zhigang; LI Hongwei; FEI Weiyang; CHEN Jian; GUO Dong; CUI Jingjie

doi:10.3969/j.issn.0438-1157.2014.01.024

您当前的位置：

首页 >

文章列表页 >

Utilization of “instantaneous molecule cluster” hypothesis to predict VLE in CO₂ absorption using alkanes

更新时间：2025-12-10

- Utilization of “instantaneous molecule cluster” hypothesis to predict VLE in CO₂ absorption using alkanes
- CIESC Journal Issue 1, Pages: 190-197(2014)
- 作者机构：
  
  清华大学化学工程系, 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.0438-1157.2014.01.024
  CLC： Q013.1
- Online First：05 January 2014，
  
  Published：05 January 2014
- 稿件说明：
移动端阅览
TANG Zhigang, LI Hongwei, FEI Weiyang, et al. Utilization of “instantaneous molecule cluster” hypothesis to predict VLE in CO₂ absorption using alkanes[J]. CIESC Journal, 2014, (1): 190-197. DOI: 10.3969/j.issn.0438-1157.2014.01.024.
DOI：

TANG Zhigang, LI Hongwei, FEI Weiyang, et al. Utilization of “instantaneous molecule cluster” hypothesis to predict VLE in CO₂ absorption using alkanes[J]. CIESC Journal, 2014, (1): 190-197. DOI: 10.3969/j.issn.0438-1157.2014.01.024. DOI：

摘要

采用“动态超分子假说”对烷烃吸收CO2相平衡进行了研究，并结合最小二乘法和试算对烷烃数据进行拟合，得到相关参数，拟合值和文献实验值的线性相关度均大于0.95，符合良好。研究表明，烷烃分子之间形成的同种“动态超分子”对吸收过程影响较大，远远大于CO2同种超分子和溶剂与CO2之间形成的异种超分子，而且其随着烷烃碳链增加，“动态超分子”形成概率和稳定性均降低，吸收能力逐渐增强。文中还研究了模型参数对拟合结果的影响，及其最佳取值范围。

Abstract

In this paper

the hypothesis of "instantaneous molecule cluster" is used to predict the VLE in CO2 absorption using alkanes. It is shown that the predicted values are consistent well with the experimental values in literature

with the linear correlation coefficient larger than 0.95. The results also reveal that the effect of homogenous instantaneous molecule cluster among alkane molecules is the key factor and is more significant than that of homogenous instantaneous molecule cluster among CO2 molecules and that of heterogeneous instantaneous molecule cluster between solvent and CO2 molecules. As carbon chain elongates

formation probability and stability of instantaneous molecule cluster decreases

and absorption capacity increases. The effects of parameters on VLE and their best ranges are also discussed.

关键词

Keywords

references

Views

391

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Absorption of low-concentration CO2 by industrial effluents: feasibility and application

Solubility of light alkanes and alkenes in ionic liquids

Study on the photocatalytic oxidative dehydrogenation of ethane with CO2 over Pd-Rh /TiO2 catalyst

Mass transfer performance of CO2 absorption into ionic liquid/ethanol mixture in microchannel

Removal of CO2 from natural gas by 2-methylimidazole/ethylene glycol system at room temperature

Related Author

Wenjiao XU

Huaigang CHENG

Fangqin CHENG

Rui ZHANG

Shuyuan DONG

Luo WU

Zhichang LIU

Chunming XU

Related Institution

Institute of Resources and Environmental Engineering, Engineering Research Center of CO2 Emission Reduction and Resource Utilization-Ministry of Education of the People’s Republic of China, Shanxi University

State Key Laboratory of Heavy Oil Processing, China University of Petroleum

School of Chemical Engineering, Sichuan University

Institute of New Energy and Low Carbon Technology, Sichuan University

State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering(TianjinTianjin), School of Chemical Engineering and Technology, Tianjin University

⁰

Utilization of “instantaneous molecule cluster” hypothesis to predict VLE in CO2 absorption using alkanes

DOI：10.3969/j.issn.0438-1157.2014.01.024

摘要

Abstract

关键词

Keywords

references

Utilization of “instantaneous molecule cluster” hypothesis to predict VLE in CO₂ absorption using alkanes