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Enhanced CO2/H2 separation by GO and PVA-GO embedded PVAm nanocomposite membranes
(Peer reviewed; Journal article, 2023)Membrane technology for CO2/H2 separation, especially when using CO2-selective membranes to keep H2 on the high-pressure retentate side, has been considered promising and energy-efficient for further H2 transport and ... -
Enhanced CO2/H2 separation by GO and PVA-GO embedded PVAm nanocomposite membranes
(Doctoral theses at NTNU;2023:307, Doctoral thesis, 2023)The objective of this Ph.D. project is to develop facilitated transport nanocomposite membranes with superior CO2/H2 separation performances for H2 purification. The research activities include material synthesis, membrane ... -
Enhanced sedimentation and coalescence of petroleum crude oil emulsions by the new generation of environmentally friendly yellow chemicals
(Journal article; Peer reviewed, 2017)This study compares by means of new and advanced destabilization protocols the efficiency of new chemistry environmentally friendly (yellow) demulsifiers with already commercially available red demulsifiers in destabilizing ... -
Enhanced stability for propene epoxidation with H2 and O2 over wormhole-like hierarchical TS-1 supported Au nanocatalyst
(Journal article; Peer reviewed, 2018)Designing highly efficient Au/Ti-containing catalysts for propene epoxidation with H2 and O2 harbors tremendous scientific and industrial importance. In this work, novel hydrophobic hierarchical TS-1 (HTS-1) with wormhole-like ... -
Enhanced Visible Light Absorption TiO2 Based Catalysts for Photocatalytic H2 Generation
(Doctoral theses at NTNU;2021:90, Doctoral thesis, 2021)Photocatalytic H2 generation from water, by utilizing semiconductors, is attractive process as the energy needed to break two chemical bonds of water and to form a chemical bond between hydrogen atoms is provided by the ... -
Enhancement of the Separation Performances of High Free Volume Polymers for CO2 Capture
(Master thesis, 2017)Poly(1-trimethylsilyl-1-propyne) (PTMSP) is a high free volume polymer exhibiting preferable properties such as a very high permeability for application in gas separation. Still, the poor selectivity of PTMSP need to be ... -
Enhancing ASP Flooding by Using Special Combinations of Surfactants and Starch Nanoparticles
(Peer reviewed; Journal article, 2023)This study aimed to address the challenges faced by mature oilfields in extracting substantial oil quantities. It focused on improving the efficiency of alkaline–surfactant–polymer (ASP) flooding technique, which is a ... -
Enhancing capacitance of supercapacitor with both organic electrolyte and ionic liquid electrolyte on a biomass-derived carbon
(Journal article; Peer reviewed, 2017)Supercapacitor (SC) with organic electrolyte or ionic liquid (IL) electrolyte can generally store/release higher energy than that with an aqueous electrolyte, due to a larger operating voltage window of a non-aqueous ... -
Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics
(Journal article; Peer reviewed, 2019)The enhanced biological phosphorus removal process makes the phosphorus recovery feasible from the dewatering streams of biological sludge. The physicochemical properties of these sidestreams, as an input to a crystallizer, ... -
Enhancing Oil Recovery by Polymeric Flooding with Purple Yam and Cassava Nanoparticles
(Peer reviewed; Journal article, 2023)Significant amounts of oil remain in the reservoir after primary and secondary operations, and to recover the remaining oil, enhanced oil recovery (EOR) can be applied as one of the feasible options remaining nowadays. In ... -
Enhancing Palladium Recovery Rates in Industrial Residual Solutions through Electrodialysis
(Peer reviewed; Journal article, 2023)Palladium is a vital commodity in the industry. To guarantee a stable supply in the future, it is imperative to adopt more effective recycling practices. In this proof-of-concept study, we explore the potential of ... -
Enhancing polyol/sugar cascade oxidation to formic acid with defect rich MnO2 catalysts
(Peer reviewed; Journal article, 2023)Oxidation of renewable polyol/sugar into formic acid using molecular O2 over heterogeneous catalysts is still challenging due to the insufficient activation of both O2 and organic substrates on coordination-saturated metal ... -
Enhancing the dynamic electron transfer of Au species on wormhole-like TS-1 for boosting propene epoxidation performance with H2 and O2
(Peer reviewed; Journal article, 2020)Engineering unique electronic structure of catalyst to boost catalytic performance is of prime scientific and industrial importance. Herein, the identification of intrinsic electronic sensitivity for direct propene epoxidation ... -
Enhancing the efficiency of power- and biomass-to-liquid fuel processes using fuel-assisted solid oxide electrolysis cells
(Journal article; Peer reviewed, 2022)Power- and biomass-to-liquid fuel processes (PBtL) can utilize renewable energy and residual forestry waste to produce liquid synthetic fuels, which have the potential to mitigate the climate impacts of the current ... -
eNRTL Parameter Fitting Procedure for Blended Amine Systems: MDEA-PZ Case Study
(Journal article; Peer reviewed, 2013) -
Environmental impacts and aspects of absorbents used for CO2 capture
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:242, Doctoral thesis, 2011)If the CO2 capture processes based on absorption are to be employed on a global level, there will be a large scale use of solvents. The absorbents used should have favourable characteristics for energy requirement, reaction ... -
Environmental Stress Cracking of Interior Polymers used in the car
(Master thesis, 2018)The thesis project was about testing of polymers used in the interiors of the cars - ABS and PC/ABS for resistance to cracking due to environmental stress conditions. This includes testing cracking/crazing of the materials ... -
Enzymatic pretreatment of steam-exploded birch wood for increased biogas production and lignin degradation
(Peer reviewed; Journal article, 2021)Lignocellulose is readily available biomass for biogas production; however, due to its rigid structure, it requires pretreatment to obtain a maximum energy extraction. In this study, steam explosion (SE) (220 °C and 10 ... -
Equilibrium and thermal properties of selected CO2-methane-tertiary amine systems; an experimental and modelling study
(Doctoral theses at NTNU;2017:23, Doctoral thesis, 2017)In this work semi-differential heat of absorption of CO2 into aqueous solutions of Nmethyldiethanolamine (MDEA) and N,N-dimethylmonoethanolamine (DMMEA) has been investigated in a reaction calorimeter. The experiments ... -
Equilibrium Partitioning of Naphthenic Acid Mixture Part 2: Crude Oil-Extracted Naphthenic Acids
(Journal article; Peer reviewed, 2018)Crude oil naphthenic acids can partition into the water phase during oil production. Variations in production parameters such as temperature, pressure, pH, and water cut affect partitioning. In a previous article, a method ...