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Using Composite Membrane Contactors with Polyamide Functional Layer for Co2 Separation. Article number ICEPTP 185

SYSNO ASEP	0557201
Document Type	A - Abstract
R&D Document Type	The record was not marked in the RIV
R&D Document Type	Není vybrán druh dokumentu
Title	Using Composite Membrane Contactors with Polyamide Functional Layer for Co2 Separation. Article number ICEPTP 185
Author(s)	Pasichnyk, Mariia (UCHP-M)_{RID, ORCID, SAI} Stanovský, Petr (UCHP-M)_{RID, ORCID, SAI} Izák, Pavel (UCHP-M)_{RID, ORCID, SAI} Šyc, Michal (UCHP-M)_{RID, SAI, ORCID}
Action	World Congress on Civil, Structural, and Environmental Engineering (CSEE'22) /7./
Event date	10.04.2022 - 12.04.2022
VEvent location	"online"
Country	PT - Portugal
Event type	WRD
Language	eng - English
Keywords	membrane ; separation of CO2 ; absorption flux
OECD category	Chemical process engineering
R&D Projects	EF16_026/0008413 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UCHP-M - RVO:67985858
Annotation	In this work, a thin film composite membrane with a polyamide functional layer (Toray, TM 710D) was used for the separation of CO2 from the gas stream. Parts of these spiral membrane modules were tested as flat sheet membranes with an active area of 24 cm2. Membrane thickness was 130 µm with functional polyamide layer having a thickness of about 500 nm. The testing bench used in this research consists of four main parts: gas mixture preparation system, a solvent loop with constant temperature, membrane module and gas concentration measurement system. The separation was measured for pure CO2 and for the mixture of 15 vol.% CO2 in nitrogen to simulate common flue gases. Demineralized water was chosen as an absorption solution before testing others CO2 suitable solvents. The effects of several variables, such as gas flow rate, absorbent flow rate, gas pressure and cell internal geometry on the removal of CO2 from flue gas, were investigated. The gas flow rate was kept at 50 mL·min−1 while the liquid flow rate was 3.23 L·min−1. It was found that the CO2 removal efficiency increased with the increasing of gas pressure from 1 to 4 Barr for pure CO2. The absorption flux was changing from 2.39 ·10-5 to 3.35 ·10-4 mol·m−2 s−1, and the removal efficiency changed from 0.2 to 2.2 % in the cell with mass transfer limitation due to porous steel support on the liquid side. The increase of gas pressure conditions has a slight effect on CO2 removal efficiency, showing application prospects. Using the model solution of flue gases (15 vol.% CO2 in Nitrogen), the absorption flux decrees to 4.48 · 10-5 mol·m−2 s−1. Absorption fluxes are comparable with membrane contactors for SO2 and indicate that the membrane can be applied to CO2 capture from the flue gas after optimization of hydrodynamic conditions in the contactor leading to higher removal efficiency.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2023

Number of the records: 1