Open AccessCO2 Absorption in Membrane Contactor using Piperazine, Monoethanolamine and Diethanolamine: A Mass Transfer and Performance Study
Author(s) -
Harith N. Mohammed,
Abdul Latif Ahmad,
Boon Seng Ooi,
C.P. Leo
Publication year - 2014
Publication title -
jurnal teknologi/jurnal teknologi
Language(s) - English
Resource type - Journals
eISSN - 2180-3722
pISSN - 0127-9696
DOI - 10.11113/jt.v69.3390
Subject(s) - diethanolamine , aqueous solution , absorption (acoustics) , piperazine , chemistry , mass transfer , membrane , chemical engineering , polyvinylidene fluoride , chromatography , analytical chemistry (journal) , nuclear chemistry , materials science , organic chemistry , composite material , biochemistry , engineering
Carbone dioxide has been demonstrated to be the largest component of greenhouse gases, which increases the temperature of the earth’s surface. Therefore, much effort has been endeavor to recover CO2. Recently, polymeric micro-porous membrane contactors have been proposed as an alternative technology for the conventional gas absorption equipments such as bubble column, packed tower and sieve trays column. In this work, three concentrations of aqueous piperazine (PZ) solutions namely 0.2 M, 0.6 M and 1 M in contact with polyvinylidene fluoride (PVDF) capillary membrane. Moreover, the absorption performances were compared with the aqueous solution of 1M monoethanolamine (MEA) and 1 M diethanolamine (DEA). The results revealed that the efficiency of amine solutions in CO2 absorption were according to the order of 1 M PZ > 1 M MEA > 0.6 M PZ > 1 M DEA > 0.2 M PZ. It was found that the efficiency of the system was controlled by the liquid phase resistance which could be improved with the increased of the liquid flow rate.