Browsing Institutt for kjemisk prosessteknologi by Title
Now showing items 713-732 of 1777
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High-pressure processing-induced transcriptome response during recovery of Listeria monocytogenes
(Peer reviewed; Journal article, 2021)Background High-pressure processing (HPP) is a commonly used technique in the food industry to inactivate pathogens, including L. monocytogenes. It has been shown that L. monocytogenes is able to recover from HPP injuries ... -
High-pressure processing-induced transcriptome response during recovery of Listeria monocytogenes
(Peer reviewed; Journal article, 2021)Background: High-pressure processing (HPP) is a commonly used technique in the food industry to inactivate pathogens, including L. monocytogenes. It has been shown that L. monocytogenes is able to recover from HPP injuries ... -
High-Temperature Core Flood Investigation of Nanocellulose as a Green Additive for Enhanced Oil Recovery
(Journal article; Peer reviewed, 2019)Recent studies have discovered a substantial viscosity increase of aqueous cellulose nanocrystal (CNC) dispersions upon heat aging at temperatures above 90 °C. This distinct change in material properties at very low ... -
High-temperature desulfurization of biomassderived synthesis gas using solid sorbents
(Doctoral theses at NTNU;2021:14, Doctoral thesis, 2021)Conversion of synthesis gas from biomass gasification to fuels or other valuable chemicals is regarded as a sustainable and renewable pathway to solve the energy crisis. However, the sulfur impurities, normally in the form ... -
High-temperature sulfur capture by a Mn-Mo sorbent: An investigation of regeneration conditions and SO<inf>2</inf> formation and prevention
(Peer reviewed; Journal article, 2023)The regeneration performance of a solid sorbent (alumina-supported 15Mn8Mo) for sulfur capture at high temperature has been studied. The regeneration of the sulfided sorbent was performed by oxidizing at different temperatures ... -
Highlights and Main Findings from the 8 Year SOLVit R&D Programme – Bringing Solvents and Technology from Laboratory to Industry
(Journal article; Peer reviewed, 2017)SOLVit is an eight year (2008 – 2015) and 37 million Euro research programme focusing on developing energy efficient and environmental friendly post combustion carbon capture systems for large-scale industrial CO2 emissions. ... -
Highly CO2-permeable membranes derived from a midblock-sulfonated multiblock polymer after submersion in water
(Journal article; Peer reviewed, 2019)To mitigate the effect of atmospheric CO2 on global climate change, gas separation materials that simultaneously exhibit high CO2 permeability and selectivity in gas mixtures must be developed. In this study, CO2 transport ... -
Highly selective CO removal by sorption enhanced Boudouard reaction for hydrogen production
(Journal article, 2019)The development of an energy-efficient and cost-effective technology for the purification of a hydrogen rich stream to achieve a CO concentration below 10 ppm, suitable for low temperature fuel cell applications, is one ... -
Hole cleaning and wet-granular rheology of rock cutting beds: Impact of drilling fluid composition
(Peer reviewed; Journal article, 2022)Cuttings-beds formation is an issue that must be considered during all wellbore drilling operations. This problem increases at highly deviated or horizontal wells, where cuttings removal efficiency becomes one of the most ... -
Homo- and copolymerization of ethene and 1-hexene with selected zirconocene catalysts
(Doktoravhandlinger ved NTNU, 1503-8181; 2001:79, Doctoral thesis, 2001)Homopolymerization of ethene and copolymerization of ethene /1-hexene with methyl substituted zirconocene dichloride / methylaluminoxane catalysts ((MenC5H5-n)2ZrCl2 / MAO) have been performed at 80°C and 2 bar ethene ... -
Hot gas cleaning
(Master thesis, 2014)Five H2S adsorbent materials for hot gas cleaning of biomass-derived synthesis gas were prepared. Three of the new sorbents were prepared based on a novel manganese-based sorbent that uses alumina support. The new adsorbent ... -
An hp-adaptive quadrature method for irregular integrands: Application to the population balance equation birth term
(Peer reviewed; Journal article, 2019)The solution of the population balance equation requires the integration of several source terms. In the numerical weighted residuals methods, Gaussian quadrature is a natural candidate for numerical integration. Previous ... -
Humidity-responsive Molecular Gate-opening mechanism for Gas Separation in Ultraselective Nanocellulose/IL Hybrid Membranes
(Peer reviewed; Journal article, 2020)Nanofibrillated cellulose (NFC) represents an important class of bio-based nanomaterials that possess favorable properties including hydrophilicity, 1D structure, biodegradability, and surface tunability. Although widely ... -
Hybrid membranes to limit amine evaporation in membrane contactors for CO2 capture
(Master thesis, 2017)In order to meet the global demand of energy from combustion processes with fossil fuels without interfering with the atmospheric levels of CO2 , carbon capture and storage (CCS) is considered a viable solution. Separation ... -
Hydration of Portland cement accelerated by C-S-H seeds at different temperatures
(Peer reviewed; Journal article, 2020)C-S-H seeds have potential application as accelerators in oil well cementing pastes. Typical oil well conditions present elevated temperatures; nevertheless, is not clear how such temperatures affect the nucleation process ... -
Hydrodeoxygenation (HDO) of simulated bio oil to fuel on bimetallic transition metal phosphides
(Master thesis, 2018)Environmental concerns and depleting availability of fossil resources, are raising interest regarding energy production from renewable sources. Biomass has the potential for being a CO2 neutral feedstock for fuel production. ... -
Hydrogen dependence of the reaction mechanism and kinetics of water gas shift reaction on Ni catalyst: Experimental and DFT study
(Journal article; Peer reviewed, 2019)This paper presents a combined experimental and density functional theory study of the relative reactivity of surface species O*, OH*, and H* with CO* on nickel catalysts and their catalytic consequence in reaction mechanism ... -
Hydrogen Hydrate Promoters for Gas Storage—A Review
(Peer reviewed; Journal article, 2023)Clathrate and semi-clathrate hydrates have recently been gaining major interest as hydrogen storage material. The benefits of hydrates, such as reversible formation and dissociation, their environmentally friendly nature, ... -
Hydrogen production by catalytic partial oxidation of methane
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:327, Doctoral thesis, 2008)Hydrogen production by catalytic partial oxidation of natural gas was investigated using tools ranging from theoretical calculations to experimental work and sophisticated characterization techniques. Catalytic partial ... -
Hydrogen production combining Steam Methane Reforming with Cryogenic Carbon Capture
(Master thesis, 2023)Formålet med denne rapporten var å utføre et litteratursøk og simulering av produksjon av hydrogen ved dampmetanreformering med kryogen karbonfangst, for så å skape en modell som beskriver prosessen. En modell for ...