TY - GEN
T1 - Effect of absorbent concentration on NOx absorption in hollow fiber membrane module
AU - Merry, Clarissa
AU - Kartohardjono, Sutrasno
N1 - Funding Information:
Authors wish to acknowledge the financial support for this study from the PIT 9 Project of the Universitas Indonesia through Contract No. NKB-0079/UN2.R3.1/HKP.05.00/2019.
Publisher Copyright:
© 2020 Author(s).
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/5/4
Y1 - 2020/5/4
N2 - Air pollution is mostly caused by toxic gas pollutants, which include Nitrogen Oxide (NOx), produced from incomplete combustion processes. However, to overcome this, a number of technologies for its removal has continuously been developed, one of which is chemical absorption, using membrane modules. This research, therefore, aims to investigate the optimum absorption condition of polysulfone-based hollow fiber module membrane, used as a bubble reactor, with strong oxidizing agent mixture, composed of hydrogen peroxide (H2O2) and nitric acid (HNO3) as it's absorbent. Furthermore, the independent variable observed is the concentration of H2O2, which was set to 0,25; 0,5; 1; 5; 10 wt.%, while the concentration of HNO3 was kept constant at 0.5M, and the inlet flow rate of the NOx gas was set constant at 150 cc/minute. However, the experimental results showed that the amount of NOx absorbed and its efficiency improves with elevating the H2O2 concentration. Conversely, the experiment also showed that membrane modules with a higher number of fibers, results in enhanced absorption efficiency. The maximum NOx removal efficiency achieved in the study was 94.6% using 10% H2O2 and membrane module with 48 fibers.
AB - Air pollution is mostly caused by toxic gas pollutants, which include Nitrogen Oxide (NOx), produced from incomplete combustion processes. However, to overcome this, a number of technologies for its removal has continuously been developed, one of which is chemical absorption, using membrane modules. This research, therefore, aims to investigate the optimum absorption condition of polysulfone-based hollow fiber module membrane, used as a bubble reactor, with strong oxidizing agent mixture, composed of hydrogen peroxide (H2O2) and nitric acid (HNO3) as it's absorbent. Furthermore, the independent variable observed is the concentration of H2O2, which was set to 0,25; 0,5; 1; 5; 10 wt.%, while the concentration of HNO3 was kept constant at 0.5M, and the inlet flow rate of the NOx gas was set constant at 150 cc/minute. However, the experimental results showed that the amount of NOx absorbed and its efficiency improves with elevating the H2O2 concentration. Conversely, the experiment also showed that membrane modules with a higher number of fibers, results in enhanced absorption efficiency. The maximum NOx removal efficiency achieved in the study was 94.6% using 10% H2O2 and membrane module with 48 fibers.
UR - http://www.scopus.com/inward/record.url?scp=85096447260&partnerID=8YFLogxK
U2 - 10.1063/5.0003029
DO - 10.1063/5.0003029
M3 - Conference contribution
AN - SCOPUS:85096447260
T3 - AIP Conference Proceedings
BT - Recent Progress on
A2 - Yuliusman, Yuliusman
A2 - Dianita, Cindy
PB - American Institute of Physics Inc.
T2 - 16th International Conference on Quality in Research, QiR 2019 - 2019 International Symposium on Sustainable and Clean Energy, ISSCE 2019
Y2 - 22 July 2019 through 24 July 2019
ER -