Blar i Institutt for kjemisk prosessteknologi på dokumenttype "Doctoral thesis"
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Co(11-20) and Pd3Au(100) single crystals as catalyst model systems
(Doctoral theses at NTNU;2017:372, Doctoral thesis, 2017)The work in this thesis was carried out with the overall goal to investigate surface dynamics of model catalyst surfaces. Single crystals were utilized as model systems, namely Co(11-20) and Pd3Au(100). The Co(11-20) ... -
CO2 Acceptors for Sorption- Enhanced Steam Methane Reforming
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:130, Doctoral thesis, 2007)Sorption-enhanced steam methane reforming (SESMR) is an emerging technology for H2 production from fossil fuels with CO2 capture. The aim of the present work has been to study SESMR with a multiscale approach and to gain ... -
CO2 Capture and Power Production Integration; Optimization and Conceptual Design Studies
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:332, Doctoral thesis, 2011)The main contribution of this thesis is conceptual design consideration to improve the CO2 capture in absorption/stripping process. In the first stage the conventional configuration of capture plant is optimized. The ... -
CO2 Capture by Chemical Absorption: Kinetics and Combined Heat and Mass Transfer
(Doctoral theses at NTNU;, Doctoral thesis, 2017)Currently, global warming is an alarming issue. Tremendous efforts are being made in the research area to develop new and improved CO2 capture technologies in recent years. Many small-scale pilot test rigs and semi-industrial ... -
CO2 capture solvents; modeling and experimental characterization
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:233, Doctoral thesis, 2014)With more than 80% of the world’s energy consumption coming from the burning of fossil fuel (BP, 2013; IEA, 2013), the mitigation of greenhouse-gas from the energy sector is crucial for avoiding climate change. Amine ... -
Coalescence and Break-Up of Drops and Bubbles
(Dr. ingeniøravhandling, 0809-103X; 2002:25, Doctoral thesis, 2002)Fluid particle break-up and coalescence are important phenomena in a number of industrial processes. A Lagrangian momentum balance model for the collision process between two fluid particles has been developed and tested ... -
Combination of ionic liquids with membrane technology: a new approach for CO2 separation
(Doctoral thesis at NTNU;2016:91, Doctoral thesis, 2016)The objective of this PhD study is to combine the advantages of membrane and ILs technologies to develop high-performance IL-based membrane contactors and membranes for CO2 separation from various sources. First of all, ... -
Combined Hydrogen Sulfide Removal and Hydrate Control for Subsea Application: Characterization of Selected Blends
(Doctoral theses at NTNU;2020:209, Doctoral thesis, 2020)After more than a century of oil and gas exploration, fewer and fewer easily accessible reservoirs are available. In order to meet the increasing energy demands, the industry has extended its exploration activities in ... -
Combined subsea hydrate control and H2S removal
(Doctoral theses at NTNU;2019:127, Doctoral thesis, 2019)In Norway natural gas production mostly comes from offshore facilities and contains impurities such as acid gases (hydrogen sulfide (H2S) & carbon dioxide (CO2)), water vapor, and mercury, etc. These impurities can cause ... -
Comparative study of selected catalysts for methane partial oxidation
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:186, Doctoral thesis, 2010)Catalytic partial oxidation of methane (CPO) is an interesting alternative to the conventional steam methane reforming (SMR) for synthesis gas production. The obtained synthesis gas has the proper H2/CO ratio for methanol ... -
Computer Realization of Thermodynamic Models Using Algebraic Objects
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:323, Doctoral thesis, 2008)The main focus of this thesis is to make thermodynamic models available for different computer programs on Windows, Linux and Unix computer platforms. In thermodynamic calculations, like phase or reaction equilibrium, the ... -
Concentrated Sulfuric Acid Hydrolysis of Hardwood Aspen and Softwood Pine for Bioethanol Production
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:333, Doctoral thesis, 2011)Bioethanol production from lignocellulosic biomass has been targeted as an alternative solution to the existing dependence on fossil fuels in the transportation sector. However, the recalcitrant nature of lignocelluloses ... -
Concepts and models of the catalytic dehydrogenation of propane
(Doctoral Theses at NTNU, 1503-8181; 2013:76, Doctoral thesis, 2013) -
Conceptual Design and Techno- Economic Analysis of Biomass to Liquid Processes
(Doctoral theses at NTNU;2022:334, Doctoral thesis, 2022)There is a need for diversifying energy resources for better energy security. Moreover, diversification is critical in reducing the dependency on fossil fuels and subsequent carbon emissions. The thesis outlines Biomass ... -
Contributions to kinetics and equilibrium of CO2 absorption into N,N-diethyl-ethanomelamine (DEEA), N-Methyl-1,3-propane-diamine (MAPA) and their blends
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:204, Doctoral thesis, 2014)This work gives contributions to kinetics and equilibrium of CO2 absorption into N,Ndiethylethanolamine (DEEA), N-Methyl-1,3-propane-diamine (MAPA) and their blends. The main emphasis of this thesis, based on the measured ... -
Control and operation of dividing-wall columns with vapor split manipulation
(Doctoral Theses at NTNU, 1503-8181; 2013:20, Doctoral thesis, 2013)Thermally coupled distillation arrangements with dividing-wall implemen- tation provide significant energy and capital savings compared to energy intensive conventional distillation arrangements. In this thesis, the focus ... -
Control Degrees of Freedom for Optimal Operation and Extending Remaining Useful Life
(Doctoral theses at NTNU;2020:188, Doctoral thesis, 2020)While the transition to renewable energy sources is happening faster than ever, traditional energy sources such as oil and gas still make up a large part of the energy portfolio, and will continue to do so for many years ... -
Control Solutions for Multiphase Flow: Linear and nonlinear approaches to anti-slug control
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:271, Doctoral thesis, 2013)Severe-slugging flow in offshore production flowlines and risers is undesirable and effective solutions are needed to prevent it. Automatic control using the top-side choke valve is a recommended anti-slug solution, but ... -
Conversion of biomass derived synthesis gas into liquid fuels via the Fischer - Tropsch synthesis process: Effect of alkali and alkaline earth metal impurities and CO conversion levels on cobalt based catalysts
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:245, Doctoral thesis, 2014)The scope of the present work was to contribute to the development of Fischer-Tropsch biomass to liquids processes. In a Fischer-Tropsch process, a carbon containing feedstock such as natural gas, coal or biomass is first ... -
Corrosion and degradation in amine based post-combustion CO2 capture
(Doctoral thesis at NTNU;2016:98, Doctoral thesis, 2016)Consumption of coal is expanding, and without CO2 capture and storage (CCS) or some other advanced coal combustion system, the most emission intensive gas, CO2, will continue to worsen climate change. Among the various ...