Open AccessSimulation for CO2 capture using tubular dual-phase membrane module
Author(s) -
Liow Ju Yee,
Lai Li,
Wee Horng Tay
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/463/1/012173
Subject(s) - membrane , flue gas , computational fluid dynamics , chemistry , analytical chemistry (journal) , bar (unit) , volumetric flow rate , volume (thermodynamics) , pressure drop , carbon dioxide , materials science , mechanics , chromatography , thermodynamics , meteorology , physics , biochemistry , organic chemistry
Dual-phase membrane is a newly developed membrane that is capable of capturing carbon dioxide (CO 2 ) from flue gas at high temperature up to 823 K. To date, the researches on CO 2 capture using dual-phase membrane are performed experimentally. However, the gas separation performance of the scale-up tubular dual-phase membrane module is scarcely studied. Therefore, the potential application of the dual-phase membrane module remains as a challenge. The design of membrane module and its implementation in actual operating conditions can be analyzed beforehand by using Computational Fluid Dynamics (CFD) simulation. In this paper, the hydrodynamic profile of the gas flowing inside a tubular dual-phase membrane module was studied to investigate its potential for industrial application. CFD simulation of gas mixture consisting of CO 2 and nitrogen (N 2 ) that flowing through the membrane module was performed at 823 K. Among the parameters investigated are the absolute pressure, concentration of CO 2 and gas velocity within the tubular membrane module. The inlet mass flow rate was set at 0.00448 kg s −1 and the total volume of the membrane module was 0.031 m 3 . Based on the simulation, 0.09 bar of pressure drop was observed when the feed gas stream passed across the membrane zone to the outlet zone. There was about 86 % of CO 2 recovery with the CO 2 concentration decreased from 20 mol % to 3.3 mol %. Besides, the membrane stage cut was around 0.17 with 83 % of the gas leaving the membrane module at the retentate side. The simulation results give reliable statement over the separation efficiency of CO 2 and flow pattern in membrane module. The scale-up performance of single membrane module has been predicted through the simulation based on the experimental data.