Browsing Institutt for kjemisk prosessteknologi by Journals "International Journal of Greenhouse Gas Control"

Now showing items 21-36 of 36

    • Influence of pKa on solvent performance of MAPA promoted tertiary amines 

      Bernhardsen, Ida Mortensen; Krokvik, Iris Renate Tøkje; Perinu, Cristina; Pinto, Diego Di Domenico; Jens, Klaus-Joachim; Knuutila, Hanna K (Journal article; Peer reviewed, 2018)
      In the present work, absorption and desorption performance of ten single tertiary amines and their blends with MAPA was studied using a screening apparatus. Absorption experiments were conducted at 40 °C and up to 9.5 kPa ...

    • Influence of substitution of water by organic solvents in amine solutions on absorption of CO2 

      Garcia, Monica; Knuutila, Hanna K; Aronu, Ugochukwu Edwin; Gu, Sai (Journal article; Peer reviewed, 2018)
      Aqueous amine solutions are the most used solvents for chemical absorption of CO2. Substituting part of the water by organic solvents in aqueous amine solutions aims to take advantage of the lower partial pressure and ...

    • Measurement and prediction of oxygen solubility in post-combustion CO2 capture solvents 

      Buvik, Vanja; Bernhardsen, Ida; Figueiredo, Roberta V.; Vevelstad, Solrun Johanne; Goetheer, Earl L.V.; van os, peter (Peer reviewed; Journal article, 2020)
      This work aims to understand oxygen solubility in pure and aqueous amine solvents for CO2 capture. Commercially available dissolved oxygen sensors were studied to evaluate whether these can be used for measuring oxygen ...

    • New Polyalkylated Imidazoles Tailored for Carbon Dioxide Capture 

      Evjen, Sigvart; Fiksdahl, Anne; Pinto, Diego Di Domenico; Knuutila, Hanna K (Journal article; Peer reviewed, 2018)
      Aqueous polyalkylated imidazoles have gained interest as potential CO2 capture solvents due to their high oxidative stability and low vapor pressures compared to traditional amines. In this work, 21 aqueous solutions of ...

    • Oxidative degradation of 2-ethanolamine: The effect of oxygen concentraton and temperature on product formation 

      Vevelstad, Solrun Johanne; Grimstvedt, Andreas Magnar; Elnan, Jørund; Silva, Eirik Falck da; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2013)
      Oxidative degradation experiments on 2-ethanolamine (MEA) were performed at four different oxygen concentrations and at two temperatures. MEA loss and degradation product build-up were measured. Increasing the temperature ...

    • Oxidative degradation of amines using a closed batch system 

      Vevelstad, Solrun Johanne; Grimstvedt, Andreas Magnar; Einbu, Aslak; Knuutila, Hanna; Silva, Eirik Falck da; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2013)
      Oxidative degradation experiments on five amines and two amino acids were performed in a new closed setup at atmospheric pressure. For most of the amines/amino acids significant degradation was not present under these ...

    • Post-combustion carbon capture technologies: Energetic analysis and life cycle assessment 

      Zhang, Xiangping; Singh, Bhawna; He, Xuezhong; Gundersen, Truls; Deng, Liyuan; Zhang, Suojiang (Journal article; Peer reviewed, 2014)
      An integrated framework focusing on the energetic analysis and environmental impacts of a CO2 capture and storage (CCS) system is presented, in which the process simulation method and the life cycle assessment (LCA) method ...

    • PVA/nanocellulose nanocomposite membranes for CO2 separation from flue gas 

      Torstensen, Jonathan Økland; Helberg, Ragne M Lilleby; Deng, Liyuan; Gregersen, Øyvind Weiby; Syverud, Kristin (Peer reviewed; Journal article, 2019)
      In this paper, we explore the use of nanocelluloses as an additive to poly (vinyl alcohol) (PVA) nanocomposite membranes for CO2/N2 mixed-gas separation. Our findings are that several types of nanocellulose can be used to ...

    • Quantitative determination of amines used in post-combustion CO2 capture process by ion chromatography 

      Fytianos, Georgios; Callot, Robin; Svendsen, Hallvard Fjøsne; Knuutila, Hanna K. (Journal article; Peer reviewed, 2015)
      In post-combustion CO2 capture (PCCC) with amine-based solvents, determining the amount of amine components present in the liquid phase is essential. The quantification of the solvent should be fast, accurate and simple. ...

    • 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 ...

    • Signs of alkylcarbonate formation in water-lean solvents: VLE-based understanding of pKa and pKs effects 

      Ramos Wanderley, Ricardo; Høisæter, Karen Karolina; Knuutila, Hanna K (Peer reviewed; Journal article, 2021)
      Water-lean solvents are solvents for CO2 capture which contain at least one amine and one organic diluent. Carbamate-forming amines in nonaqueous water-lean solvents typically absorb CO2 through the formation of carbamate ...

    • Two-stage membrane cascades for post-combustion CO<inf>2</inf> capture using facilitated transport membranes: Importance on sequence of membrane types 

      Janakiram, Saravanan; Lindbråthen, Arne; Ansaloni, Luca; Peters, Thijs; Deng, Liyuan (Peer reviewed; Journal article, 2022)
      The use of membrane module performance data obtained in industrially-relevant environment as the basis in process simulation can lead to a more realistic prediction of a CO2 capture system. In this work, we report the use ...

    • Uncertainty analysis in the techno-economic assessment of CO2 capture and storage technologies. Critical review and guidelines for use 

      van der Spek, Mijndert; Fout, Timothy; Garcia, Monica; Kuncheekanna, Vishalini Nair; Matuszewski, Michael; McCoy, Sean; Morgan, Joshua; Nazir, Shareq Mohd; Ramirez, Andrea; Roussanaly, Simon; Rubin, Edward S. (Peer reviewed; Journal article, 2020)
      Uncertainty analysis is a key element of sound techno-economic analysis (TEA) of CO2 Capture and Storage (CCS) technologies and systems, and in the communication of TEA results. Many CCS technologies are relatively novel, ...

    • VLE data and modelling of aqueous N,N-diethylethanolamine (DEEA) solutions 

      Monteiro, Juliana Garcia Moretz-Sohn; Pinto, Diego Di Domenico; Zaidy, Syed Amjad Hussain; Hartono, Ardi; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2013-11)
      This work focuses on N,N-diethylethanolamine (DEEA), a tertiary amine relevant in the phase-change solvents context. Vapour liquid equilibrium data for CO2 loaded aqueous solutions of DEEA are presented. These, along with ...

    • VLE data and modelling of aqueous N,N-diethylethanolamine (DEEA) solutions 

      Monteiro, Juliana Garcia Moretz-Sohn; Pinto, Diego Di Domenico; Zaidy, Syed Amjad Hussain; Hartono, Ardi; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2013)