Blar i Institutt for kjemisk prosessteknologi på tittel
Viser treff 156-175 av 1767
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Carbon Capture and Utilization from Limestone Calcination
(Master thesis, 2023)Dette masterprosjektet studerer bruken av CO2-utslipp fra sementproduksjon og fornybar hydrogen til å produsere metanol. Studien er basert på en Aspen Hysys V11-simulering. Ulike teknologier og termodynamiske modeller ble ... -
Carbon dioxide absorption into hydroxide and carbonate systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:265, Doctoral thesis, 2014)In the global warming scenario, a literature review on carbon dioxide capture technologies shows that CO2 capture by chemical absorption seems to be the immediately viable route for sustainable energy supply in near future. ... -
Carbon dioxide absorption with non-porous hollow fiber membrane contactors - Module fabrication and characterisation
(Master thesis, 2018)Carbon capture and storage (CCS) is recognised as one of the key technologies to reduce greenhouse gas emissions from industrial plants. Currently, the most established technology is chemical absorption with amines, but ... -
Carbon Dioxide Capture from Flue Gas by FSC (Fixed-Site-Carrier) Membranes: The Effect on Membrane Separation Properties of Casting Solution pH and Exposure to Contaminants
(Master thesis, 2011)Polyvinyl amine (PVAm) Fixed-Site-Carrier (FSC) membranes prepared with various casting solution pH were developed for CO2 capture from flue gas. Among these membranes tested, the membranes prepared from casting solutions ... -
Carbon dioxide capture with carbonate systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:115, Doctoral thesis, 2009) -
Carbon dioxide separation from flue gas by FSC (Fixed-Site-Carrier) membranes: Investigation on effect of polymer casting solution pH and process parameters on carbon dioxide separation at lab scale and pilot set-up scale
(Master thesis, 2012)In this master thesis work, the fixed site carrier (FSC) polyvinylamine (PVAm) composite membranes were studied for their CO2 separation performance with respect to the pH of their casting solution. The study was done at ... -
Carbon dioxide solubility in mixtures of methyldiethanolamine with monoethylene glycol, monoethylene glycol–water, water and triethylene glycol
(Peer reviewed; Journal article, 2020)Carbon dioxide solubility in non-aqueous and aqueous mixtures of methyldiethanolamine (MDEA) with monoethylene glycol (MEG) was studied due to the relevance of these solvents for the combined acid gas removal and hydrate ... -
Carbon Dioxide Solubility in Phosphonium-Based Deep Eutectic Solvents: An Experimental and Molecular Dynamics Study
(Peer reviewed; Journal article, 2019)Considering the great potential of deep eutectic solvents (DESs) for CO2 capture, this work studies the CO2 solubility in DESs by combining experimental measurement and molecular dynamics (MD) simulation. First, four ... -
Carbon Formation and Catalysis in the Conversion of Methyl Chloride and Silicon into Dimethyldichlorosilane - Collaboration with Elkem - Bluestar
(Master thesis, 2018)The Direct Process is the most prominent method for producing dimethyldichlorosilane, and is a copper-catalyzed reaction between solid silicon and methyl-chloride gas. The process faces several complications such as the ... -
Carbon Formation Mechanisms on Co Surfaces: A DFT Study
(Master thesis, 2021)Fisher-Tropsch syntesen (FTS) er en katalytisk prosess hvor syngas omdannes til vann og hydrokarboner som for eksempel lange kjeder av alkaner, alkener og oksygenater. Interessen for FTS har økt på grunn av den økende ... -
Carbon formation phenomena and the initial stage of metal dusting corrosion –an experimental investigation
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:27, Doctoral thesis, 2014)Metal dusting corrosion is high temperature degradation of metals and alloys into dust-like fine particles. It is often encountered in petrochemical industry, where metals and alloys extensively exposed to carbon containing ... -
Carbon hollow fiber membranes for a molecular sieve with precise-cutoff ultramicropores for superior hydrogen separation
(Peer reviewed; Journal article, 2021)Carbon molecular sieve (CMS) membranes with rigid and uniform pore structures are ideal candidates for high temperature- and pressure-demanded separations, such as hydrogen purification from the steam methane reforming ... -
Carbon Looping for Metallurgical Processes via Boudouard reaction over Magnetite
(Master thesis, 2020)Utvikling av en effektiv og økonomisk gunstig teknologi for reduksjon av CO2 utslipp i metallindustrien er et mål for å oppnå et fremtidig lav-utslipp samfunn. Karbotermisk reduksjon av metalloksider produserer en ovngass ... -
Carbon Membranes for CO2 Removal: Status and Perspectives from Materials to Processes
(Peer reviewed; Journal article, 2020)CO2 removal from gas streams using energy-efficient and environmentally friendly separation technologies can contribute to achieving a low-carbon energy future. Carbon membrane systems for hydrogen purification, post-combustion ... -
Carbon membranes for oxygen enriched air – Part I: Synthesis, performance and preventive regeneration
(Journal article; Peer reviewed, 2018)Chemisorption of oxygen on the active sites of carbon layers limits the use of carbon membranes in air separation application. A novel online electrical regeneration method was applied to prevent the active sites on carbon ... -
Carbon membranes for oxygen enriched air – Part II: Techno-economic analysis
(Journal article; Peer reviewed, 2018)Carbon membrane (CM) separation process for producing oxygen-enriched air (OEA) at a concentration of 50–78 mol% O2 in a single stage process with no recycle stream has been investigated. This paper (Part II of a two-part ... -
Carbon Molecular Sieve Hollow Fiber Membranes for CO2 Removals
(Doctoral theses at NTNU;2020:401, Doctoral thesis, 2020)New technologies that are more energy efficient could, if applied in the large-scale CO2 removal process, reduce carbon dioxide emissions, and achieve a low-carbon future. Compared to traditional amine-based absorption, ... -
Carbon molecular sieve membranes for biogas upgrading: Techno-economic feasibility analysis
(Journal article; Peer reviewed, 2018)Biomethane, produced by biogas upgrading, has a great potential to replace part of the fossil fuel natural gas, and may be injected into a gas grid or used as compressed biomethane as vehicle fuel. The state-of-the-art ... -
Carbon Molecular Sieve Membranes for Hydrogen Purification from a Steam Methane Reforming Process
(Peer reviewed; Journal article, 2021)Asymmetric carbon molecular sieve (CMS) membranes prepared from cellulose hollow fiber precursors were investigated for H2/CO2 separation in this work. The prepared carbon membrane shows excellent separation performance ... -
Carbon molecular-sieve membranes developed from a Tröger's base polymer and possessing superior gas-separation performance
(Journal article; Peer reviewed, 2023)Carbon molecular-sieve membranes possess tremendous practical advantages over unary polymer membranes by providing high gas-separation performance levels, coupled with excellent mechanical and chemical stability. Improving ...