Browsing NTNU Open by Author "Bernhardsen, Ida Mortensen"
Now showing items 1-9 of 9
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A review of potential amine solvents for CO2 absorption process: Absorption capacity, cyclic capacity and pKa
Bernhardsen, Ida Mortensen; Knuutila, Hanna K (Journal article; Peer reviewed, 2017)Solvent selection is an important element to enable low energy requirement in post combustion CO2 capture process by means of chemical absorption. In this paper, we investigated the CO2 capture performance of 132 different ... -
Absorption and Desorption Study of Alkylamine Promoted DEEA Solvents for CO2 Capture
Bernhardsen, Ida Mortensen; Perinu, Cristina; Jens, Klaus-Joachim; Pinto, Diego Di Domenico; Knuutila, Hanna K (Journal article; Peer reviewed, 2018)Three primary and two secondary mono-alkylamines, and a di-alkylamine (3 (Methylamino)propylamine, MAPA) were investigated in blend with a tertiary amine (2-(Diethylamino)ethanol, DEEA). The aim of the study was to ... -
CO2 Capture by Aqueous 3-(Methylamino)propylamine in Blend with Tertiary Amines: An NMR Analysis
Perinu, Cristina; Bernhardsen, Ida Mortensen; Svendsen, Hallvard Fjøsne; Jens, Klaus-Joachim (Journal article; Peer reviewed, 2017)Aqueous 3-(Methylamino)propylamine (MAPA) in blend with 2-(Diethylamino)ethanol (DEEA) and other tertiary amines, which mainly differ from DEEA in the number of hydroxyl functions (-OH) and/or in the length and structure ... -
Electric steam methane reforming - Economical and environmental implications of replacing methane with electricity for heating in a steam methane reformer
Bukkholm, Ida Synnøve (Master thesis, 2021)Grønn energi har fått en trekkraft som et resultat av økt fokus på bærekraft, og det blir forsket på mer enn noen gang før. Ettersom fossile brennstoff er skadelig for miljøet, er det på tide at de byttes ut. Hydrogen er ... -
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 ... -
NMR Speciation of Aqueous MAPA, Tertiary Amines, and Their Blends in the Presence of CO2: Influence of pKa and Reaction Mechanisms
Perinu, Cristina; Bernhardsen, Ida Mortensen; Pinto, Diego Di Domenico; Knuutila, Hanna K; Jens, Klaus-Joachim (Journal article; Peer reviewed, 2018)The diamine 3-(methylamino)propylamine (MAPA) and eight tertiary amines were studied as single and blended aqueous CO2 absorbents at different concentrations and ratios to investigate their reaction mechanisms. After ... -
Performance of MAPA promoted tertiary amine systems for CO2 absorption: Influence of alkyl chain length and hydroxyl groups
Bernhardsen, Ida Mortensen; Krokvik, Iris Renate Tøkje; Jens, Klaus-Joachim; Knuutila, Hanna K (Journal article; Peer reviewed, 2017)Absorption and desorption of CO2 into five aqueous tertiary amine solvents and their blends with MAPA were studied using a screening apparatus. Results showed that MAPA significantly enhanced both CO2 absorption rate and ... -
Removal of SO2 from Flue Gas - Study of the Regenerable Labsorb Process
Bernhardsen, Ida Mortensen (Master thesis, 2015)Sulphur dioxide (SO2) is a well-known air pollutant, and is primarily formed as a by-product when fossil fuels are burned at power plants. Due to stringent emission regulations, well-designed and efficient flue gas ... -
Selected blended amines for postcombustion CO2 capture
Bernhardsen, Ida Mortensen (Doctoral theses at NTNU;2019:143, Doctoral thesis, 2019)Carbon capture and storage is an important climate measure for a low carbon future. The CO2 capture technology closest to implementation for post-combustion CO2 capture systems is chemical absorption with amine solvents. ...