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Exploring metal-metal and metal-support interactions in Pt-based catalysts for aqueous phase reforming
(Doctoral theses at NTNU;2023:402, Doctoral thesis, 2023)The extensive use of fossil fuels is widely recognized as one of the primary factors contributing to global warming. Therefore, finding alternative and sustainable energy sources/carriers is a relevant area of research to ... -
Extensive dataset for oxidative degradation of ethanolamine at 55-75 °C and oxygen concentrations from 6 to 98%
(Journal article; Peer reviewed, 2016)Post combustion CO2 capture using amines as chemical absorbents is a relatively mature technology. Rate of reaction and desorption energy demand are normally prime criteria for evaluation of new solvents while degradation ... -
Extracting Valuable Information from Big Data for Machine Learning Control: An Application for a Gas Lift Process
(Journal article; Peer reviewed, 2019)The present work investigated the use of an echo state network for a gas lift oil well. The main contribution is the evaluation of the network performance under conditions normally faced in a real production system: noisy ... -
Extraction and characterization of bases present in crude oil
(Master thesis, 2009) -
Extraction, quantification and study of interfacially active petroleum components”
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:375, Doctoral thesis, 2012)The recovery, transport and production of crude oil include challenges related to pipeline flow, separation and pressure drops occurring in the process, due to a vast array of indigenous molecules present in petroleum ... -
Extractives in process water from compressive pre-treatment of chips in mechanical pulping
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:47, Doctoral thesis, 2011)The main abjectives of this work were to evaluate the extent to which extractives in wood chips for mechanical pulping are released into process water during compressive pre-treatment before refining and to develop a method ... -
Fabrication and Characterization of Polymeric Membranes for Dehydration of Triethylene Glycol Used for Subsea Application
(Master thesis, 2019)Hensikten med dette prosjektet er undersøke om en polybenzimidazole (PBI) membran kan brukes til å dehydrere trietylen glykol (TEG) i en pervaporasjons prosess som en del av en membran prosess for dehydrering av naturgass. ... -
Fabrication and characterization of Solid Lipid Nanoparticles and Nanostructured Lipid Carriers
(Master thesis, 2015)The effect of drugs could be greatly improved by encapsulating drugs into nanoparticles. Nanoparticles can facilitate delivery of a variety of drugs, allow transport to target site and achieve prolonged drug delivery. This ... -
Fabrication and Evaluation of Bio-based Nanocomposite TFC Hollow Fiber Membranes for Enhanced CO2 capture
(Journal article; Peer reviewed, 2019)Nanocellulose is a promising and sustainable biobased nanomaterial because of its excellent mechanical properties, biocompatibility, natural abundance, and especially its high aspect ratio. Interest in applying nanocellulose ... -
Fabrication of Defect-Free Cellulose Acetate Hollow Fibers by Optimization of Spinning Parameters
(Journal article; Peer reviewed, 2017)Spinning of cellulose acetate (CA) with the additive polyvinylpyrrolidone (PVP) in N-methyl-2-pyrrolidone (NMP) solvent under different conditions was investigated. The spinning parameters of air gap, bore fluid composition, ... -
Facile and Solvent-free Fabrication of PEG-based Membranes with Interpenetrating Networks for CO2 Separation
(Journal article; Peer reviewed, 2018)For nearly two decades, membranes derived from polyethers have served as promising candidate materials for CO2 separation. Due to the inherent tendency of high-molecular-weight poly(ethylene oxide) (PEO) to crystallize and ... -
Facile synthesis approach for core-shell TiO2–CdS nanoparticles for enhanced photocatalytic H2 generation from water
(Journal article; Peer reviewed, 2018)With the ambition to design a cost-effective and highly stable photocatalyst with improved photocatalytic activity towards H2 generation by water splitting, herein we report a two-step facile synthesis approach for core-shell ... -
Facilitated transport membranes containing graphene oxide-based nanoplatelets for CO2 separation: Effect of 2D filler properties
(Peer reviewed; Journal article, 2020)Realization of suitable membrane-based technology for efficient CO2 capture to mitigate climate change relies on the development of thin-film composite (TFC) membranes with superior separation performance. Graphene oxide ... -
Facilitated Transport Nanocomposite Membranes for CO<inf>2</inf>/H<inf>2</inf> Separation: The Effect of Mobile Carriers
(Peer reviewed; Journal article, 2023)Using CO2-selective membranes based on facilitated transport mechanisms has been reported as an energy-efficient approach for hydrogen purification from CO2-containing mixed gas streams. In this work, four CO2-philic mobile ... -
Fast Economic Model Predictive Control for a Gas Lifted Well Network
(Journal article; Peer reviewed, 2018)This paper considers the optimal operation of an oil and gas production network by formulating it as an economic nonlinear model predictive control (NMPC) problem. Solving the associated nonlinear program (NLP) can be ... -
Fast Sensitivity-Based Nonlinear Economic Model Predictive Control with Degenerate NLP
(Journal article; Peer reviewed, 2018)We present a fast sensitivity-based nonlinear model predictive control (NMPC) algorithm, that can handle non-unique multipliers in the discretized dynamic optimization problem. Non-unique multipliers may arise, for example ... -
A fast, low-cost, robust and high-throughput method for viral nucleic acid isolation based on NAxtra magnetic nanoparticles
(Peer reviewed; Journal article, 2023)The year of 2020 was profoundly marked by a global pandemic caused by a strain of coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiological agent of coronavirus disease 2019 (COVID-19). ... -
Feasibility study and modelling of multistage amine reclaimer
(Master thesis, 2013)One of the largest expenses in CO2 capture is the transport and disposal of waste from the amine reclaimer, and top up of fresh amine~\citep{KIP}. The main reason for this is because the waste stream contains quite large ... -
Feedback Real-Time Optimization Strategy Using a Novel Steady-state Gradient Estimate and Transient Measurements
(Journal article; Peer reviewed, 2019)This paper presents a new feedback real-time optimization (RTO) strategy for steady-state optimization that directly uses transient measurements. The proposed RTO scheme is based on controlling the estimated steady-state ... -
Feedforward, Cascade and Model Predictive Control Algorithms for De-Oiling Hydrocyclones: Simulation Study
(Peer reviewed; Journal article, 2021)Abstract: Maintaining the efficiency of the produced-water treatment system is important for the oil and gas industry, especially taking into consideration the environmental impact caused of the produced-water. De-oiling ...