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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kiil, Søren
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (47/47 displayed)
- 2024Protective Mechanisms of Siloxane-Modified Epoxy Novolac Coatings at High-Pressure, High-Temperature Conditions
- 2024Wettability of Water- and Solvent-borne Epoxy Coatings on Contaminated Steel Substrates
- 2024Wettability of waterborne and solvent-based epoxy coatings on contaminated steel panels
- 2023Incorporation of unmodified technical Kraft lignin particles in anticorrosive epoxy novolac coatings
- 2023Incorporation of unmodified technical Kraft lignin particles in anticorrosive epoxy novolac coatings
- 2023Chemically-resistant epoxy novolac coatings: Effects of size-fractionated technical Kraft lignin particles as a structure-reinforcing componentcitations
- 2023Chemically-resistant epoxy novolac coatings: Effects of size-fractionated technical Kraft lignin particles as a structure-reinforcing componentcitations
- 2023Chemically-resistant epoxy novolac coatings : Effects of size-fractionated technical Kraft lignin particles as a structure-reinforcing componentcitations
- 2022Detection and quantification of premature crack formation in curing epoxy coatingscitations
- 2022Detection and quantification of premature crack formation in curing epoxy coatingscitations
- 2022Parallel measurements and engineering simulations of conversion, shear modulus, and internal stress during ambient curing of a two-component epoxy coatingcitations
- 2022Parallel measurements and engineering simulations of conversion, shear modulus, and internal stress during ambient curing of a two-component epoxy coatingcitations
- 2021Methanol degradation mechanisms and permeability phenomena in novolac epoxy and polyurethane coatingscitations
- 2021Methanol degradation mechanisms and permeability phenomena in novolac epoxy and polyurethane coatingscitations
- 2021The influence of CO2 at HPHT conditions on properties and failures of an amine-cured epoxy novolac coatingcitations
- 2021Simultaneous tracking of hardness, reactant conversion, solids concentration, and glass transition temperature in thermoset polyurethane coatingscitations
- 2021Degradation pathways of amine-cured epoxy novolac and bisphenol F resins under conditions of high pressures and high temperatures
- 2021Degradation pathways of amine-cured epoxy novolac and bisphenol F resins under conditions of high pressures and high temperatures
- 2021Simultaneous tracking of hardness, reactant conversion, solids concentration, and glass transition temperature in thermoset polyurethane coatingscitations
- 2021The influence of CO 2 at HPHT conditions on properties and failures of an amine-cured epoxy novolac coatingcitations
- 2021The evolution of coating properties and internal stress during ambient curing of a two-component epoxy coating
- 2021The evolution of coating properties and internal stress during ambient curing of a two-component epoxy coating
- 2020Experimental Investigation and Mathematical Modeling of the Reaction between SO2(g) and CaCO3(s)-containing Micelles in Lube Oil for Large Two-Stroke Marine Diesel Enginescitations
- 2019Mixed Flow Reactor Experiments and Modeling of Sulfuric Acid Neutralization in Lube Oil for Large Two-Stroke Diesel Enginescitations
- 2019Mixed Flow Reactor Experiments and Modeling of Sulfuric Acid Neutralization in Lube Oil for Large Two-Stroke Diesel Enginescitations
- 2019Exposure of hydrocarbon intumescent coatings to the UL1709 heating curve and furnace rheology: Effects of zinc borate on char propertiescitations
- 2019Measurements of methanol permeation rates across thermoset organic coatings
- 2017Reaction of Sulfuric Acid in Lube Oil: Implications for Large Two-Stroke Diesel Enginescitations
- 2017Acid-resistant organic coatings for the chemical industry: a reviewcitations
- 2017Industrial Coatings at Extreme Conditions
- 2016Long-Term Stability of PEG-Based Antifouling Surfaces in a Marine Environment
- 2016Amphiphilic copolymers for fouling-release coatings
- 2015Quantitative analysis of silica aerogel-based thermal insulation coatingscitations
- 2015Use of Fillers, Pigments and Additives in Fouling-Release Coatings: a Literature Review
- 2013Mathematical modeling of photoinitiated coating degradation: Effects of coating glass transition temperature and light stabilizerscitations
- 2013Mathematical modeling of photoinitiated coating degradation: Effects of coating glass transition temperature and light stabilizerscitations
- 2012Microcapsule-based self-healing anticorrosive coatings: Capsule size, coating formulation, and exposure testingcitations
- 2011Teaching chemical product design to engineering students: course contents and challenges
- 2011Cinnamic Acid Derivatised Poly(Ethylene Glycol) as a Bioinspired UV-Adaptable Material
- 2011Synthesis of durable microcapsules for self-healing anticorrosive coatings: A comparison of selected methodscitations
- 2011UV-initierede ”smart materials”
- 2011Fremstilling af UV-aktive polymerer
- 2007Characterization of pigment-leached antifouling coatings using BET surface area measurements and mercury porosimetrycitations
- 2007Adhesion between coating layers based on epoxy and siliconecitations
- 2006Dissolution rate measurements of sea water soluble pigments for antifouling paintscitations
- 2005Reaction rate estimation of controlled-release antifouling paint binders: Rosin-based systemscitations
- 2005Reaction rate estimation of controlled-release antifouling paint binders: Rosin-based systemscitations
Places of action
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article
Mixed Flow Reactor Experiments and Modeling of Sulfuric Acid Neutralization in Lube Oil for Large Two-Stroke Diesel Engines
Abstract
Lubrication oil for marine diesel engines contains additives in the form of CaCO<sub>3</sub>-based reverse micelles, which can neutralize condensing H<sub>2</sub>SO<sub>4</sub>, and thereby limit uncontrolled corrosive wear of the piston rings and cylinder liner. In the present work, the neutralization mechanism was studied experimentally and through modeling. Using a mixed flow reactor (MFR), the rate of the acid–base reaction was measured as a function of relevant process parameters. In addition, the competition between CaCO<sub>3</sub> reverse micelles and NaOH droplets for a reaction with H<sub>2</sub>SO<sub>4</sub> droplets in a lube oil emulsion was explored in a batch reactor. For the residence times investigated, the results show that CaCO<sub>3</sub> conversion is significantly reduced when reaching a critically low Ca/S ratio. Furthermore, a mathematical model for the neutralization of H<sub>2</sub>SO<sub>4</sub> droplets by CaCO<sub>3</sub> reverse micelles in lube oil under well-mixed conditions was developed. Both the experimental data and simulations support previous results, suggesting that the limiting step in the neutralization mechanism is adsorption of reverse micelles onto the much larger H<sub>2</sub>SO<sub>4 </sub>droplets. Using the video-microscopy experiments of Fu et al. [ Tribol. Lett. 2006, 22 (3), 221], it was possible to estimate kinetic parameters for the adsorption-controlled reaction. The model was used to predict conversion of H<sub>2</sub>SO<sub>4</sub> in a lube oil film at the cylinder liner surface for conditions relevant for a full-scale application. Calculations indicated that H<sub>2</sub>SO<sub>4</sub> may reach the liner surface regardless of how well-wetted the surface is.