To main content

Oxygen and temperature effect on formation of degradation compounds from MEA

Abstract

Liquid phase degradation of MEA and the formation of 8 degradation compounds were studied at 4 different oxygen concentrations and three different temperatures. Liquid phase total nitrogen was determined and compared with quantified remaining MEA and degradation compounds. The first order rate constant for MEA degradation was determined and found to increase with both oxygen concentration and temperature. Temperature and oxygen dependence of the degradation compounds were complex. In particular the behaviour at 6% oxygen level was interesting. The end sample liquid phase nitrogen balance is almost closed at 6% O2. The nitrogen accounted for decreases with increasing temperature.

Category

Academic article

Client

  • Research Council of Norway (RCN) / 189998

Language

English

Author(s)

  • Solrun Johanne Vevelstad
  • Maren T Johansen
  • Hanna Knuutila
  • Hallvard Fjøsne Svendsen

Affiliation

  • SINTEF Industry / Process Technology
  • Norwegian University of Science and Technology

Year

2014

Published in

Energy Procedia

ISSN

1876-6102

Publisher

Elsevier

Volume

63

Page(s)

957 - 975

View this publication at Cristin