Modeling and validation of carbon dioxide absorption in aqueous solution of piperazine plus methyldiethanolamine by PC-SAFT and E-NRTL models in a packed bed pilot plant: Study of kinetics and thermodynamics

被引：9

作者：

Esmaeili, Arash ^{[1
]}

Liu, Zhibang ^{[1
]}

Xiang, Yang ^{[1
]}

Yun, Jimmy ^{[2
,3
]}

Shao, Lei ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Minist Educ High Grav Engn & Technol, Res Ctr, Beijing 100029, Peoples R China

[2] Hebei Univ Sci & Technol, Coll Chem & Pharmaceut Engn, Shijiazhuang 050018, Hebei, Peoples R China

[3] Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia

来源：

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION | 2020年 / 141卷

基金：

中国国家自然科学基金;

关键词：

Absorption; Aspen plus; Carbon dioxide; PC-SAFT; Piperazine; Simulation; N-METHYLDIETHANOLAMINE; CO2; ABSORPTION; PHASE-BEHAVIOR; MDEA SOLUTION; MASS-TRANSFER; SOLUBILITY; EQUATION; CAPTURE; SOLVENT; SYSTEMS;

D O I：

10.1016/j.psep.2020.05.010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A pilot plant with a closed cycle of the absorption/desorption process has been taken into account for the simulation of carbon dioxide (CO2) capture by piperazine (PZ) + methyldiethanolamine (MDEA) solution using Aspen Plus rate-based model with all design and operational parameters such as the hydraulic specifications of absorber and stripper as well as inlet flue gas conditions which are present in a commercial gas-fired burner for heating houses. Metal FLEXIPAC 250Y has been considered as the packing type to apply the model to the proposed correlations on Aspen Plus for calculation of flooding and pressure drop. In order to simulate the process, a new property package has been developed by electrolyte non-random two-liquid (E-NRTL) model and perturbed-chain statistical associating fluid theory (PC-SAFT) equation of state which are used for the calculation of activity and fugacity coefficients respectively. The model has been compared with some experimental data e.g. CO2 absorption efficiency and CO2 loading and demonstrated good agreement with them. (C) 2020 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：95 / 109

页数：15