N 2 O absorption through super hydrophobic hollow fiber membrane contactor

Sutrasno Kartohardjono, Stephanie Shabanindita, Meylin Harianja, Alphasius Omega Dixon, Yuliusman, Nelson Saksono

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Dinitrogen monoxide (N 2 O) is mainly produced in Horticulture and farming activities, industrial processes and combustion of fossil fuels. N 2 O is one of the harmful emissions and its global warming potential is 310 times greater than CO 2 on a molecular basis. This research aims to absorb N 2 O from its mixture with air through super hydrophobic hollow membrane contactor using a mixture of 0.5M HNO 3 and 0.5 wt % H 2 O 2 solutions as absorbent. In the experiment, the feed gas flowed through the shell side of the contactor, while absorbent solution flowed through the lumen fibers. Experimental results show that the amount of N 2 O absorbed and N 2 O absorption efficiency increased with the absorbent flow rate and the number of fibers in the contactor resulting from the increase in the turbulence and surface area for gas–liquid contact, respectively. The overall mass transfer coefficient and the flux increased with the absorbent flow rate due to the decrease of the mass transfer resistance in the liquid phase. However, the overall mass transfer coefficient and the flux decreased with the number of fibers in the contactor due to the decrease of the absorbent flow rate in a single fiber. The amount of N 2 O absorbed and the flux increased but the N 2 O absorption efficiency decreased with increasing the feed gas cross flow rate.

Original languageEnglish
Pages (from-to)362-366
Number of pages5
JournalEnvironmental Progress and Sustainable Energy
Volume38
Issue number2
DOIs
Publication statusPublished - 1 Mar 2019

Keywords

  • N O absorbed
  • absorption efficiency
  • absorption process
  • harmful emission

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