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The great challenge for next years concerning the emission of diesel engines is to develop diesel particle filters (DPF) with catalytic regeneration systems. This work is focused on the global understanding of the diesel soot oxidation on sintered metal filters (SMF). Platinum is studied as reference catalyst. The first objective is to determine which of platinum quantity, platinum particle size, or platinum location exhibits the preponderant influence on the catalytic.
platinum --- soot --- catalytic oxidation
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Soot --- Environmental chemistry --- Chimie de l'environnement --- Environmental aspects
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Soot painting. --- Painting, French --- Installations (Art) --- Neu, Patrick,
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Carcinogens --- Gases, Asphyxiating and poisonous --- Soot --- Lungs --- Carcinogens, Environmental --- Inhalation Exposure --- Lung Neoplasms --- Talc --- Titanium --- Toxicology --- Dust diseases --- Tumors --- adverse effects --- chemically induced --- toxicity
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This thesis presents research focusing on the improvement of high-resolution global black carbon (BC) emission inventory and application in assessing the population exposure to ambient BC. A particular focus of the thesis is on the construction of a high-resolution (both spatial and sectorial) fuel consumption database, which is used to develop the emission inventory of black carbon. Above all, the author updates the global emission inventory of black carbon, a resource subsequently used to study the atmospheric transport of black carbon over Asia with the help of a high-resolution nested model. The thesis demonstrates that spatial bias in fuel consumption and BC emissions can be reduced by means of the sub-national disaggregation approach. Using the inventory and nested model, ambient BC concentrations can be better validated against observations. Lastly, it provides a complete uncertainty analysis of global black carbon emissions, and this uncertainty is taken into account in the atmospheric modeling, helping to better understand the role of black carbon in regional and global air pollution.
Environment. --- Atmospheric Protection/Air Quality Control/Air Pollution. --- Atmospheric Sciences. --- Climate Change. --- Environmental sciences. --- Climatic changes. --- Environmental protection. --- Sciences de l'environnement --- Climat --- Environnement --- Changements --- Protection --- Air -- Pollution. --- Atmosphere. --- Soot. --- Civil & Environmental Engineering --- Engineering & Applied Sciences --- Environmental Engineering --- Air --- Pollution. --- Air contaminants --- Air pollutants --- Air pollution --- Air pollution control --- Air toxics --- Airborne pollutants --- Atmosphere --- Contaminants, Air --- Control of air pollution --- Pollutants, Air --- Toxics, Air --- Black carbon (Soot) --- Pollution --- Control --- Atmospheric sciences. --- Climate change. --- Air pollution. --- Air quality --- Atmospheric deposition --- Dust --- Changes, Climatic --- Changes in climate --- Climate change --- Climate change science --- Climate changes --- Climate variations --- Climatic change --- Climatic changes --- Climatic fluctuations --- Climatic variations --- Global climate changes --- Global climatic changes --- Climatology --- Climate change mitigation --- Teleconnections (Climatology) --- Environmental quality management --- Protection of environment --- Environmental sciences --- Applied ecology --- Environmental engineering --- Environmental policy --- Environmental quality --- Environmental aspects --- Atmospheric sciences --- Earth sciences --- Global environmental change
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This Special Issue will highlight the latest advances in numerical modeling of combustion-related applications. With the recent advancements in computational capacities and the widespread use of simulations in engineering problems, numerical methods are becoming increasingly important to improve existing models and develop new models that can help researchers to better understand the underlying mechanisms of combustion, their interaction with other physical phenomena, such as turbulence, and their impacts on the performance of related applications at both fundamental and practical levels.
Technology: general issues --- History of engineering & technology --- gas fire suppression --- inert gas agents --- agent quantity --- discharge rate --- ventilation rate --- premixed combustion --- obstructed channels --- flame acceleration --- thermal expansion --- computational simulations --- machine learning --- soot concentration --- soot emissions --- artificial neural network --- estimator --- computational fluid dynamics --- combustion --- biogas --- hydrogen --- laminar flame speed --- correlation --- jet-and-recirculation stabilized combustion --- OH* measurements --- numerical CFD analysis --- RANS modeling --- detailed chemistry schemes --- heat-loss modeling --- low-calorific combustion --- syngas fuel --- micro-combustion --- syngas --- repetitive extinction and ignition (FREI) --- numerical simulations --- flame instabilities --- flame propagation --- closed spherical bomb --- incipient stage --- methane --- N2O --- flash boiling --- gasoline direct injection --- Spray G --- discrete droplet method --- fuel surrogates --- combustion process --- reactivity model --- synthetic jet fuels --- turbine engines --- two-stroke engine --- multiple injection --- emission --- numerical simulation --- computational fluid dynamic (CFD) --- natural gas --- laminar burning velocity (LBV) --- closed vessel combustion --- numerical study --- microcombustion --- complex geometry --- n/a
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Coatings are traditionally used to protect materials from corrosion and erosion and improve the equipment’s performance. At present, there are coatings that provide materials with new properties, for example, biocidal, hydrophobic and self-cleaning properties. A promising area of materials science is the development of "smart" coatings that simultaneously give materials several new properties. The coating propertiess are determined by the coatings’ material, the structure and the properties of the substrate surface, and the methods of forming the coatings. This book contains the results of the latest research on the formation of coatings that impart complexes of new properties to various materials.
Technology: general issues --- cellulose textile material --- microencapsulation --- antibacterial --- antimycotic --- wound healing properties --- silver --- polyelectrolyte microcapsules --- multifunctional --- carbon soot coatings --- super-nonwettable --- nanostructured polymer coating --- polyacrylate dispersion --- nanodispersed fillers --- graft copolymers --- composite parts of a garment --- superhydrophobic --- oleophobic --- click chemistry --- silica --- fluorinated epoxy --- coatings --- polypropylene yarn --- polytetrafluoroethylene --- magnetite nanoparticles --- barrier antimicrobial properties --- surface electrical resistance --- chemical resistance --- tensile strength --- alumina (Al2O3) coating --- self-cleaning --- composite coating --- n/a
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Although the compression ignition (C.I.) engine, invented by Rudolf Diesel, was originally intended to work with pure vegetable oils as fuel, more than a century ago, it was adapted to be used with a fuel of fossil origin, obtained from oil. Therefore, there would be no technical difficulties in returning to the primitive design of using biofuels of renewable origin, such as vegetable oils. The main drawback is found in the one billion C.I. engines which are currently in use, which would have to undergo a modification in the injection system in order to adapt them to the higher viscosity of vegetable oils in comparison to that of fossil fuels. Thus, the gradual incorporation of biofuels as substitutes of fossil fuels is mandatory.
Research & information: general --- Technology: general issues --- biodiesel --- Ecodiesel --- selective ethanolysis --- sunflower oil --- Lipozyme RM IM --- Rhizomucor miehei --- ANOVA method --- response surface methodology --- gasoline oil blends --- castor oil --- biofuel --- diesel engine --- electricity generator --- smoke opacity --- Bacharach opacity --- straight vegetable oils (SVO) --- glycerol --- heterogeneous catalysis --- etherification --- isobutene --- tert-Butyl alcohol --- oxygenated fuel additives --- hydrogen production --- photo-reforming --- Ni/TiO2 --- transesterification --- Aspergillus terreus lipase --- polydopamine --- immobilization --- RSM --- fuel properties --- diethyl ether --- Bosch smoke number --- vacuum fractionation --- fuel --- fatty acids composition --- ethyl acetate --- straight vegetable oils --- vegetable oil blends --- biofuels --- soot emissions --- engine power output
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Adequate quality of life and well-being of modern societies is only achievable with sustainable manufacturing processes that efficiently use raw materials, eliminate waste, and avoid the use of hazardous materials. All this is hardly conceivable without catalysis. In a world concerned with the exploitation of natural resources, catalysis can offer direct synthesis routes that maximize resource efficiency. The Iberoamerican society is far too significant and far too involved in global development, owing to its natural richness of resources, not to have an essential role in current developments and future directions. Catalysis, in the Iberoamerican academic and industrial communities, is recognized as a relevant scientific discipline that supports several strategic industrial sectors through the manufacturing of products and materials, and the operationalization of processes to produce energy and other utilities. As a reflection of this, once every two years the Iberoamerican Congress on Catalysis takes place to share and discuss the state-of-the-art of this discipline with the Federation of Iberoamerican Catalysis Societies. This book collected sixteen outstanding contributions, stemming from this exceptional event—one which will undoubtedly mark a turning point and could be a source of inspiration to all those involved in catalysis, particularly the young generation of competent researchers taking their first steps in this incredibly complex and beautiful discipline.
History of engineering & technology --- hydrodeoxygenation --- fast-pyrolysis bio-oil --- nickel catalyst --- upgrading --- peptide bond --- phthalonitriles --- phthalocyanines --- aminocarbonylation --- palladium catalysts --- castor oil --- biofuel --- selective transesterification --- ecodiesel --- biodiesel --- diesel engine --- electricity generator --- smoke opacity --- Bacharach opacity --- aldol condensation --- biomass valorization --- Mg/Al mixed oxides --- surfactant --- microwaves --- influence of water --- FAEEs --- mixed biocatalysts --- lipases --- microalgae --- silver nanoparticles --- zirconia --- hydrocarbons --- diesel soot --- catalytic combustion --- boronic esters --- borylation --- Suzuki–Miyaura --- layered double hydroxides --- copper --- palladium --- Fe/Nb2O5 immobilized catalyst --- emerging pollutants --- degradation --- hydrodesulfurization --- CoMo/Al2O3 --- basic additive --- lanthanum --- MCM-41 --- cerium --- benzyl alcohol --- oxidation --- benzaldehyde --- etherification --- glycerol --- tert-butyl alcohol --- dibutyl ether --- A-15 --- catalyst stability --- Cobalt ferrite --- ethylesters --- biofuels --- hydrotalcite --- transesterification --- fast pyrolysis --- SAPO-5 --- Al-MCM-41 --- dodecanoic acid --- photocatalysis --- Mg/Fe layered double hydroxides --- coprecipitation --- chlorophenols --- mixed oxides --- elimination --- phenol --- Al2O3-TiO2 --- CoMo --- CoMoS --- MoS2 --- desulfurization --- chemisorption --- MPI silica --- Ag nanoparticles --- XPS assessment --- n/a --- Suzuki-Miyaura
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