• An approach for VLE model development, validation, and implementation in Aspen Plus for amine blends in CO2 capture: the HS3 solvent case study 

      Gilardi, Matteo; Bisotti, Filippo; Tobiesen, Finn Andrew; Knuutila, Hanna Katariina; Bonalumi, Davide (Journal article; Peer reviewed, 2023)
      Carbon Capture and Storage (CCS) using chemical absorption is a viable method to significantly cut CO2 emissions in the industrial and energy sectors. However, further development of improved absorbents is necessary to ...
    • Aspen Plus ENRTL Model for HS3 Blend, a Novel Solvent for CO2 Capture 

      Gilardi, Matteo; Bisotti, Filippo; Knuutila, Hanna Katariina; Tobiesen, Finn Andrew; Bonalumi, Davide (Peer reviewed; Journal article, 2023)
      Carbon Capture and Storage (CCS) is among the main available options to cut CO2 emissions from the industry and energy production sectors, but the high costs of current CCS technology still limit their large-scale ...
    • CO2 capture and utilization by biocatalytic synthesis of carboxylic acids: a process design study 

      Marra, Luigi; Russo, Maria Elena; Knuutila, Hanna Katariina; Marzocchella, Antonio; Salatino, Piero (Peer reviewed; Journal article, 2024)
      The search for less energy-intensive processes is pushing toward a diversification of Carbon-Capture and Utilization/Sequestration (CCU/S) pathways. Biocatalytic processes offer sustainable solutions characterized by ...
    • Heat Integration Study of CO2 Capture in Blue Hydrogen Production 

      Limpach, Juliette; Pinto, Diego Di Domenico; Knuutila, Hanna Katariina (Peer reviewed; Journal article, 2023)
      Hydrogen is an energy carrier that can be used to develop a low-carbon economy: the hydrogen-based industry. For this purpose, a source of hydrogen is needed. Steam methane reforming (SMR) is the current benchmark to produce ...
    • Oxidative degradation of triethylene glycol 

      Høisæter, Karen Karolina; Buvik, Vanja; Gonzalez, Susana Villa; Vevelstad, Solrun Johanne; Knuutila, Hanna Katariina (Journal article; Peer reviewed, 2024)
      Triethylene glycol (TEG) is unstable in the presence of oxygen and at high temperatures, though the degradation mechanisms occurring are not properly understood. In attempting to close some of the knowledge gaps, ...
    • Oxidative degradation of triethylene glycol 

      Høisæter, Karen Karolina; Buvik, Vanja; Gonzalez, Susana Villa; Vevelstad, Solrun Johanne; Knuutila, Hanna Katariina (Peer reviewed; Journal article, 2024)
      Triethylene glycol (TEG) is unstable in the presence of oxygen and at high temperatures, though the degradation mechanisms occurring are not properly understood. In attempting to close some of the knowledge gaps, ...
    • Predicting solvent degradation in absorption–based CO2 capture from industrial flue gases 

      Braakhuis, Lucas; Knuutila, Hanna Katariina (Peer reviewed; Journal article, 2023)
      This work aims to predict solvent degradation rates in absorption-based CO2 capture processes using a 30 wt% aqueous monoethanolamine (MEA) solvent. A degradation model for MEA is developed and used to predict solvent ...
    • 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 ...