Browsing Institutt for kjemisk prosessteknologi by Document Types "Doctoral thesis"
Now showing items 1-20 of 286
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3D carbon/polyaniline nanostructures for energy storage
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:215, Doctoral thesis, 2011)Among various types of electrical energy storage devices, supercapacitors (high power but low energy) and batteries (high energy but low power) are extensively studied. Present work aims to develop an electrode material ... -
A multifluid-PBE model for reactive bubbly flow: Applied to biofuel production via the Fischer- Tropsch synthesis operated in a slurry bubble column
(Doktoravhandlinger ved NTNU;2018:291, Doctoral thesis, 2018)Summary of thesis: A multifluid-PBE model for reactive bubbly flow Although electricity is transforming the transportation sector, liquid fuels are believed to remain in demand in the near future. With the ... -
A Semi-Industrial Scale Process to Produce Carbon Membranes for Gas Separation
(Doctoral theses at NTNU;2019:296, Doctoral thesis, 2019)Carbon molecular sieve membranes (CMSMs) are thin carbon barriers, usually in the shape of a film or hollow fibre, that are capable of selectively transporting certain gases. CMSMs are prepared by the thermal decomposition, ... -
A Steady-State Isotopic Transient Kinetic Study of Cobalt Catalysts: Mechanistic Insights and Effect of Cobalt Particle Size, Supports and Promoters
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:280, Doctoral thesis, 2011) -
A study of the sorption-enhanced steam methane reforming process
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:371, Doctoral thesis, 2012) -
Absorption of Carbon Dioxide - Modeling and Experimental Characterization
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:16, Doctoral thesis, 2004)Recent studies on the costs of different processes for CO2 capture from power plants show that post-combustion CO2 removal by absorption with chemical solvents has the potential to remain the most important process also ... -
Adsorption Microcalorimetry Studies on Supported Cobalt Catalysts
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:247, Doctoral thesis, 2012) -
Advances in Optimisation and Machine Learning for Process Systems Engineering
(Doctoral theses at NTNU;2024:85, Doctoral thesis, 2024)Optimisation is a valuable tool in process systems engineering, and has been widely used in design, control, process identification and many other areas. This thesis proposes novel applications of optimisation, as well as ... -
Aggregation, interfacial properties and structural characteristics of asphaltene solubility fractions
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:158, Doctoral thesis, 2007)Crude oil is the primary source for energy in the world and serves as the raw material for many daily products. Two topics, important in the daily processing of crude oils, are treated in this thesis. Water-in-oil emulsions ... -
Aligned carbon nanotubes@ manganese oxide coaxial arrays for lithium ion batteries
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:257, Doctoral thesis, 2013)Lithium ion batteries (LIB) have attracted widespread interests due to their higher specific energy compared with nickel–cadmium batteries and lead–acid batteries. However, their specific power remains too low to power ... -
Amine and amino acid absorbents for CO₂ capture
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:228, Doctoral thesis, 2011)World energy demand is on a continuous increase and fossil fuels will remain the dominant energy source for the foreseeable future. Fossil fuel combustion, however, results in greenhouse gas emissions, and in particular ... -
An aggregation model reduction method for one-dimensional distributed systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:186, Doctoral thesis, 2009)This thesis discusses a model reduction method for one-dimensional distributed systems. These systems can be spatially discretely distributed, like staged distillation columns, or spatially continuously distributed, like ... -
An Experimental Study of Tetrameric Naphthenic Acids atw/o Interfaces: Reactivity, Inhibition and Emulsion Formation
(Doktoravhandlinger ved NTNU, 1503-8181, Doctoral thesis, 2009) -
An Experimental Study of the Phase Separation Phenomenon and Dewatering Technique of Pyrolysis Oil
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:60, Doctoral thesis, 2014)Fast pyrolysis is a promising technology for cost-efficient conversion of biomass into renewable liquid fuels. However, development of pyrolysis oils as a fuel is incomplete. Issues of phase separation and alteration of ... -
An investigation of fundamental phenomena affecting the performance of sputtered Pd alloy thin film membranes for hydrogen separation
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:165, Doctoral thesis, 2014)Pure hydrogen flux has been obtained for sputtered Pd77%Ag23% membranes with thickness of 2.2-11.2 μm. A general thickness dependent behaviour is observed upon permeation under hydrogen. However, permeability is not constant ... -
Asphaltenes and Asphaltene model compounds: Adsorption, Desorption and Interfacial Rheology.
(Doctoral thesis at NTNU;2016:71, Doctoral thesis, 2016)There are numerous problems encountered during extraction, production, transportation and refining of crude oil. Most of these problems are typically oil-specific, meaning that they depend upon the source of the oil, and ... -
Au-TiO2 catalysts supported on carbon nanostructures for CO removal reactions
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:269, Doctoral thesis, 2008) Awareness of the climatic changes due to emission of CO2 and other greenhouse gases to the atmosphere has made ... -
Bayesian Estimators for Bioprocess Monitoring Under Uncertainty
(Doctoral theses at NTNU;2023:128, Doctoral thesis, 2023)The simultaneous growing interest in the application of digital solutions and the use of biological organisms such as bacteria and yeasts for the production of chemicals, has increased the necessity to apply digital solutions ... -
Bimetallic Catalyst System for Steam Reforming
(Doctoral thesis at NTNU;2015:339, Doctoral thesis, 2015)To improve catalytic performance of Ni supported catalysts for hydrogen production, a monolayer of a noble metal is introduced on the surface of Ni particles. A series of surface alloy M/Ni catalysts was prepared by redox ... -
Calcium Based CO2 Acceptors for Sorption Enhanced Steam Methane Reforming
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:317, Doctoral thesis, 2011)Conversion of natural gas and light hydrocarbons via steam reforming, partial oxidation and electrolysis of water are the major commercial hydrogen production technologies. However, these methods are not economically viable, ...