Blar i SINTEF Open på forfatter "Knuutila, Hanna K"
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Aerosol Emission at a Post Combustion CO2 Capture Plant at Twence (Wte Facility)
Monteiro, Juliana; Srivastava, Tanya; Ros, Jasper; Huizinga, Arjen; Gravesteijn, Paul; Van Os, Peter; De Vries, Ronald; Vos, Mathijs; Telgenkamp, Kirsten; Uhre, Susanna Sprauten; Svendsen, Hallvard Fjøsne; Knuutila, Hanna K (SINTEF Proceedings;7, Chapter; Peer reviewed; Conference object, 2021)Amine emissions in post combustion CO2 capture (PCC) have a significant impact on process economics and the environment. The volatile nature of amine-based solvents in combination with aerosol formation can lead to amine ... -
Aerosol growth in CO2 absorption with MEA, modelling and comparison with experimental results
Svendsen, Hallvard Fjøsne; Majeed, Hammad; Knuutila, Hanna K; Hillestad, Magne; Evjen, Sigvart; Mejdell, T.; Einbu, A.; Hjarbo, Kai Wilhelm; Haugen, G.; Hoff, K.A. (Peer reviewed; Journal article, 2021)A new and improved aerosol model has been developed and tested against experimental data. An e-NRTL equilibrium model for MEA was extended to cover sulphuric acid containing droplets and validated against new eboulliometer ... -
Applicability of enhancement factor models for CO2 absorption into aqueous MEA solutions
Putta, Koteswara Rao; Tobiesen, Finn Andrew; Svendsen, Hallvard Fjøsne; Knuutila, Hanna K (Peer reviewed; Journal article, 2017)In many chemical industrial processes, mass transfer across gas-liquid interfaces accompanied by chemical reaction is the governing phenomena. In case of mass transfer accompanied by a chemical reaction in the liquid phase, ... -
Calorimetric Studies of Precipitating Solvent System
Hartono, Ardi; Kim, Inna; Knuutila, Hanna K; van der Ham, L.V; Goetheer, Earl (Peer reviewed; Journal article, 2017)Calorimetric study of a precipitating solvent system of Potassium-Taurate (KTAU) was performed in the CPA202 calorimeter. Two different experiments were conducted, i.e. heat of absorption of CO2 in KTAU solvent at different ... -
Characterization of 2-Piperidineethanol and 1-(2-Hydroxyethyl)piperidine as strong bicarbonate forming solvents for CO2 Capture
Hartono, Ardi; Rennemo, Rune; Awais, Muhammad; Vevelstad, Solrun Johanne; Brakstad, Odd Gunnar; Kim, Inna; Knuutila, Hanna K (Journal article; Peer reviewed, 2017-08)The solubility of CO2 in the aqueous solutions of 50 mass% 2-Piperidineethanol (2-PPE) and 40 mass% 1-(2-Hydroxyethyl)pyrrolidine (1-(2HE)PRLD) was measured at temperatures from 40 to 120 °C at CO2 loading from 0.04 to 0.8 ... -
Chemical Stability and Characterization of Degradation Products of Blends of 1-(2-Hydroxyethyl)pyrrolidine and 3-Amino-1-propanol
Vevelstad, Solrun Johanne; Grimstvedt, Andreas Magnar; Francois, Maxime; Knuutila, Hanna K; Haugen, Geir; Wiig, Merete; Vernstad, Kai (Peer reviewed; Journal article, 2022)Aqueous amine solvents are used to capture CO2 from various flue gas sources. In this work, the chemical stability of a blend of 3-amino-1-propanol (3A1P) and 1-(2-hydroxyethyl)pyrrolidine [1-(2HE)PRLD] was studied. The ... -
Effect of liquid viscosity on the performance of a non-porous membrane contactor for CO2 capture
Bernhardsen, Ida; Ansaloni, Luca; Betten, Hanne Kalvøy; Deng, Liyuan; Knuutila, Hanna K (Journal article; Peer reviewed, 2019)The effect of liquid viscosity on the performance of a non-porous membrane contactor is important to study for a proper solvent selection and process design. In this work, the overall mass transfer coefficient for MEA- and ... -
Impact of Solvent on the Thermal Stability of Amines
Høisæter, Karen Karolina; Vevelstad, Solrun Johanne; Braakhuis, Lucas; Knuutila, Hanna K (Peer reviewed; Journal article, 2022)Water-lean solvents have been proposed as a possible alternative to aqueous amine systems in postcombustion carbon capture. There is however little data available on how amine degradation is affected by different solvents. ... -
Important Aspects Regarding the Chemical Stability of Aqueous Amine Solvents for CO2 Capture
Vevelstad, Solrun Johanne; Buvik, Vanja; Knuutila, Hanna K; Grimstvedt, Andreas Magnar; Silva, Eirik Falck da (Peer reviewed; Journal article, 2022)The chemical stability of aqueous amines is an essential property to study before new amines are introduced in pilot plants, to reduce risks related to the operation, cost and environment. There are no standard methods for ... -
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 (Peer reviewed; Journal article, 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 ... -
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) -
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 ... -
Vapor–liquid equilibria data for 2-piperidineethanol and 1-(2-hydroxyethyl)pyrrolidine in aqueous solutions and a UNIQUAC model representation
Hartono, Ardi; Nøkleby, Christina; Kim, Inna; Knuutila, Hanna K (Peer reviewed; Journal article, 2022)This work reports equilibrium data for two amines, 2-piperidineethanol (2-PPE) and 1-(2-hydroxyethyl)pyrrolidine (1-(2HE)PRLD), and their aqueous solutions. The pressure, temperature, and composition data are used to ...