Blar i Institutt for kjemisk prosessteknologi på forfatter "Vevelstad, Solrun Johanne"

Viser treff 21-26 av 26

    • A review of degradation and emissions in post-combustion CO2 capture pilot plants 

      Buvik, Vanja; Høisæter, Karen Karolina; Vevelstad, Solrun Johanne; Knuutila, Hanna K (Peer reviewed; Journal article, 2021)
      Pilot plant testing of amine solvents for post-combustion CO2 capture is an essential tool for fully understanding degradation behaviour and emission profiles under realistic process conditions. This review aims to summarise ...

    • Screening of strong bicarbonate forming solvents for CO2 capture 

      Hartono, Ardi; Vevelstad, Solrun Johanne; Ciftja, Arlinda; Knuutila, Hanna K (Journal article; Peer reviewed, 2017-03)
      Fifteen bicarbonate forming solvents were tested and compared to 30 mass% MEA using a screening apparatus. Additionally the pKa values of each of the solvents at room temperature were measured. The overall evaluation was ...

    • Stability of amines for CO2 capture 

      Buvik, Vanja (Doctoral theses at NTNU;2021:257, Doctoral thesis, 2021)
      Despite of being a well-tested and highly attractive technology for capture of carbon dioxide (CO2), amine scrubbing encounters economic and operational challenges originating from degradation of the amine solvent, in ...

    • Stability of Solvents for Gas Purification 

      Høisæter, Karen Karolina (Doctoral theses at NTNU;2023:293, Doctoral thesis, 2023)
      The main objective of this work was to increase the understanding of the chemical processes occurring as solvents used in gas purification degrade. Amine systems for CO2 capture and glycol systems for gas dehydration were ...

    • Stability of Structurally Varied Aqueous Amines for CO2 Capture 

      Buvik, Vanja; Vevelstad, Solrun Johanne; Brakstad, Odd Gunnar; Knuutila, Hanna K (Peer reviewed; Journal article, 2021)
      Eighteen structurally varied amines were subjected to harsh oxidative conditions, and their stability was assessed and seen in the context of biological and thermal stability. Steric effects play a large role in the ...

    • Thermal degradation on already oxidatively degraded solutions 

      Vevelstad, Solrun Johanne; Grimstvedt, Andreas Magnar; Knuutila, Hanna; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2013)
      CO2 capture with alkanolamines has been in use since 1930, where 2-ethanolamine (MEA) is the most studied absorbent for post-combustion. In order to prevent degradation, it is important to understand the degradation ...