Relevant bibliographies by topics / CxHyOz

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'CxHyOz'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "CxHyOz"

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Zhu, Shengqiang, Lei Li, Shurong Wang, et al. "Development of an automatic linear calibration method for high-resolution single-particle mass spectrometry: improved chemical species identification for atmospheric aerosols." Atmospheric Measurement Techniques 13, no. 8 (2020): 4111–21. http://dx.doi.org/10.5194/amt-13-4111-2020.

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Abstract. The mass resolution of laser desorption ionization (LDI) single-particle aerosol mass spectrometry (SPAMS) is usually low (∼500), which has been greatly improved by the recent development of the delayed ion extraction technique. However, due to large fluctuations among LDI processes during each laser shot, accurate calibration of the mass-to-charge ratio for high-resolution SPAMS (HR-SPAMS) spectra is challenging. Here we developed an automatic linear calibration method to improve the accuracy of mass-to-charge (m∕z) measurement for single atmospheric aerosol particles. Laboratory-ge
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Eugster, Philippe J., Julien Boccard, Benjamin Debrus, et al. "Retention time prediction for dereplication of natural products (CxHyOz) in LC–MS metabolite profiling." Phytochemistry 108 (December 2014): 196–207. http://dx.doi.org/10.1016/j.phytochem.2014.10.005.

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Grosshandler, W. L., and E. M. Thurlow. "Generalized State-Property Relations for Nonluminous Flame Absorption Coefficients." Journal of Heat Transfer 114, no. 1 (1992): 243–49. http://dx.doi.org/10.1115/1.2911253.

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The work reported here simplifies computing the local Planck-mean absorption coefficient in nonluminous flames as a function of the mixture fraction and fuel composition. Equilibrium is assumed for fuel/air mixtures up to the point where carbon is predicted to condense, beyond which the gaseous products are assumed to be frozen and to be diluted with cold fuel. The resulting algebraic expressions are suitable for inclusion in any turbulent or laminar diffusion flame model predicated on single-step chemistry. The method accounts for the nongray nature of the gaseous combustion products and thei
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Shilling, J. E., Q. Chen, S. M. King та ін. "Loading-dependent elemental composition of α-pinene SOA particles". Atmospheric Chemistry and Physics 9, № 3 (2009): 771–82. http://dx.doi.org/10.5194/acp-9-771-2009.

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Abstract. The chemical composition of secondary organic aerosol (SOA) particles, formed by the dark ozonolysis of α-pinene, was characterized by a high-resolution time-of-flight aerosol mass spectrometer. The experiments were conducted using a continuous-flow chamber, allowing the particle mass loading and chemical composition to be maintained for several days. The organic portion of the particle mass loading was varied from 0.5 to >140 μg/m3 by adjusting the concentration of reacted α-pinene from 0.9 to 91.1 ppbv. The mass spectra of the organic material changed with loading. For loadings
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Shilling, J. E., Q. Chen, S. M. King та ін. "Loading-dependent elemental composition of α-pinene SOA particles". Atmospheric Chemistry and Physics Discussions 8, № 4 (2008): 15343–73. http://dx.doi.org/10.5194/acpd-8-15343-2008.

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Abstract. The chemical composition of secondary organic aerosol (SOA) particles, formed by the dark ozonolysis of α-pinene, was characterized by a high-resolution time-of-flight aerosol mass spectrometer. The experiments were conducted using a continuous-flow chamber, allowing the particle mass loading and chemical composition to be maintained for several days. The organic portion of the particle mass loading was varied from 0.5 to >140 μg/m3 by adjusting the concentration of reacted α-pinene from 0.9 to 91.1 ppbv. The mass spectra of the organic material changed with loading. For loadings
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Poulain, L., Z. Wu, M. D. Petters, et al. "Towards closing the gap between hygroscopic growth and CCN activation for secondary organic aerosols – Part 3: Influence of the chemical composition on the hygroscopic properties and volatile fractions of aerosols." Atmospheric Chemistry and Physics Discussions 9, no. 4 (2009): 16683–714. http://dx.doi.org/10.5194/acpd-9-16683-2009.

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Abstract. The influence of varying levels of water mixing ratio, r, during the formation of secondary organic aerosol (SOA) from the ozonolysis of α-pinene on the SOA hygroscopicity and volatility was investigated. The reaction proceeded and aerosols were generated in a mixing chamber and the hygroscopic characteristics of the SOA were determined with LACIS (Leipzig Aerosol Cloud Interaction Simulator) and a Cloud Condensation Nuclei counter (CCNc). In parallel, a High-Resolution Time-of-Flight Aerodyne Aerosol Mass Spectrometer (HR-ToF-AMS) located downstream of a thermodenuder (TD) sampling
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Poulain, L., Z. Wu, M. D. Petters, et al. "Towards closing the gap between hygroscopic growth and CCN activation for secondary organic aerosols – Part 3: Influence of the chemical composition on the hygroscopic properties and volatile fractions of aerosols." Atmospheric Chemistry and Physics 10, no. 8 (2010): 3775–85. http://dx.doi.org/10.5194/acp-10-3775-2010.

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Abstract. The influence of varying levels of water mixing ratio, r, during the formation of secondary organic aerosol (SOA) from the ozonolysis of α-pinene on the SOA hygroscopicity and volatility was investigated. The reaction proceeded and aerosols were generated in a mixing chamber and the hygroscopic characteristics of the SOA were determined with the Leipzig Aerosol Cloud Interaction Simulator (LACIS) and a Cloud Condensation Nuclei counter (CCNc). In parallel, a High-Resolution Time-of-Flight Aerodyne Aerosol Mass Spectrometer (HR-ToF-AMS) located downstream of a thermodenuder (TD) sampl
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Qi, Lu, Alexander L. Vogel, Sepideh Esmaeilirad, et al. "A 1-year characterization of organic aerosol composition and sources using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF)." Atmospheric Chemistry and Physics 20, no. 13 (2020): 7875–93. http://dx.doi.org/10.5194/acp-20-7875-2020.

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Abstract. The aerosol mass spectrometer (AMS), combined with statistical methods such as positive matrix factorization (PMF), has greatly advanced the quantification of primary organic aerosol (POA) sources and total secondary organic aerosol (SOA) mass. However, the use of thermal vaporization and electron ionization yields extensive thermal decomposition and ionization-induced fragmentation, which limit chemical information needed for SOA source apportionment. The recently developed extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF) provides mass spectra of the or
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Han, Yuemei, Craig A. Stroud, John Liggio та Shao-Meng Li. "The effect of particle acidity on secondary organic aerosol formation from <i>α</i>-pinene photooxidation under atmospherically relevant conditions". Atmospheric Chemistry and Physics 16, № 21 (2016): 13929–44. http://dx.doi.org/10.5194/acp-16-13929-2016.

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Abstract. Secondary organic aerosol (SOA) formation from photooxidation of α-pinene has been investigated in a photochemical reaction chamber under varied inorganic seed particle acidity levels at moderate relative humidity. The effect of particle acidity on SOA yield and chemical composition was examined under high- and low-NOx conditions. The SOA yield (4.2–7.6 %) increased nearly linearly with the increase in particle acidity under high-NOx conditions. In contrast, the SOA yield (28.6–36.3 %) was substantially higher under low-NOx conditions, but its dependency on particle acidity was insig
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Simmie, John M., and Judith Würmel. "An Organized Collection of Theoretical Gas-Phase Geometric, Spectroscopic, and Thermochemical Data of Oxygenated Hydrocarbons, CxHyOz (x, y = 1, 2; z = 1–8), of Relevance to Atmospheric, Astrochemical, and Combustion Sciences." Journal of Physical and Chemical Reference Data 49, no. 2 (2020): 023102. http://dx.doi.org/10.1063/1.5132628.

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Dissertations / Theses on the topic "CxHyOz"

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Adamowska, Malgorzata. "Réduction sélective catalytique des oxydes d'azote issus de la combustion du charbon, à l'aide des hydrocarbures émis, sur Rh/CeO2-ZrO2." Paris 6, 2007. http://www.theses.fr/2007PA066275.

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L’objet de cette étude est d’élaborer un nouveau système catalytique pour la réduction des oxydes d’azote en azote moléculaire par le mélange des hydrocarbures en excès d’oxygène présent dans les effluents de sources fixes. Le but de ces études est donc de proposer une solution catalytique permettant de limiter l’émission des oxydes d’azote provenant des chaudières de faible puissance, mais aussi permettant de respecter les futures normes environnementales européennes. Dans un premier temps, nous avons sélectionné le support le plus actif en se basant sur la caractéristique physico-chimique de
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Baudin, François. "Catalyse de NOx assistée par plasma "non thermique"." Paris 6, 2004. http://www.theses.fr/2004PA066416.

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Hachimi, Abdouelilah. "Détermination des paramètres cinétiques impliqués dans les processus de réduction des émissions de composés organiques volatils (COV) de structures CxHyOz par adsorption sur des solides à base d’oxydes métalliques et de carbones." Lyon 1, 2007. http://www.theses.fr/2007LYO10292.

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Dans le cadre d’une approche microcinétique de la réduction des composés organiques volatils (COV), la présente étude a pour objectif la détermination des paramètres impliqués dans le contrôle de l’équilibre d’adsorption des composés organiques volatils (COV) par une méthode originale appelée TPAE (Temperature Programmed Adsorption Equilibrium). Deux familles de COV ont été sélectionnées : les alcools et les aromatiques. Deux familles d’adsorbants ont été considérées : les oxydes métalliques (silice et alumine) et les carbones (les suies Diesel réelles (DPX-9) et modèle (Printex-U) et le charb
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Cheng, Jiun-Wen, and 鄭鈞文. "Theoretical Study of Carbonization of CxHy Species on Si(100) and (111) Surfaces : Mechanism and Kinetics." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/hwtaj9.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>94<br>Modeling of chemical vapor deposition (CVD) processes requires knowledge of the gas-flow dynamics and chemical reactrion occurring in reactor. In order to go beyond simple growth rate predictions based on the lumped kinetics from incomplete experimental kinetic data, quantum chemistry techniques are used to investigate kinetics of chemical reaction involved in carbonization of hydrocarbon, including CH4, C2H6, C3H8, C2H4 and C2H2, on the Si(100) and Si(111) surfaces. Ab initio calculations have been used to determine the structures, energies and vibration frequ
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Conference papers on the topic "CxHyOz"

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Winters, Caroline, Andrey Chernukho, Zakari Eckert, and Igor V. Adamovich. "Measurements and kinetic modeling of OH and H number densities in nanosecond pulse discharges in CxHy-O2-Ar and CxHy-air mixtures." In 54th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-1211.

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Atong, Duangduen, and Viboon Sricharoenchaikul. "Thermal Conversion of Mixed Wastes From Biodiesel Manufacturing for Production of Fuel Gas." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90200.

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Thermochemical conversion process has become a viable technology for managing excess waste from various industries while producing value added fuel products. In the work reported here, distribution of products (solid, liquid, and gas) by thermal conversion of wastes from biodiesel production process which are extracted physic nut and palm shell mixed with glycerol waste was carried out using a medium scale tubular reactor with feeding rate of 5 g/min. Several important operating parameters were studied including the proportion of each waste (100:0 – 70:30), reaction temperature (700 – 900°C) a
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Dülger, Zafer, Samet Aslan, Müslüm Arıcı, et al. "Performance and Emissions of a Micro-Turbine Fueled With JP8-Canola Biodiesel Mixtures." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-27340.

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In this study, a micro gas turbine was operated with JP8 and canola biodiesel blends. The blends tested were JP8, 40% of biodiesel, 60% of biodiesel, and 80% of biodiesel by volume. The turbine was run at 3 speeds, 60.000, 80.000 and 105.000 rpm. Engine power generation and emissions performance were determined. The results reveal that as biodiesel content in the fuel mixture increased, the fuel flow rate increased to maintain the constant speed operation and equivalence ratio reduced. It was shown that TJ35 engine can operate with biodiesel blends in JP8 without sacrificing thrust. In fact, 8
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Kretschmann, M., Chr Barczus, and V. Scherer. "Combustion Tests on a Blend of Liquid Refinery Residues and Coal: CFBC Operation Behaviour and Emissions Characteristics With Special Emphasis on the Intermediate Species CxHy, HCN and NH3." In 18th International Conference on Fluidized Bed Combustion. ASMEDC, 2005. http://dx.doi.org/10.1115/fbc2005-78103.

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Investigations on the combustion of a blend of liquid refinery residues and a hard coal are presented in the current paper. The experiments were done in an atmospheric circulating fluidized bed combustor (CFBC) with a thermal capacity of 100 kW. The operation behaviour and pollutant formation characteristics are determined using axial profile measurements at 19 different ports along the combustion chamber. The measurement campaign included the variation of the primary to secondary air ratio, the global air to fuel ratio, the residence time in the primary zone, the overall temperature of the co
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Lai, Mark K. "CFD Analysis of Liquid Spray Combustion in a Gas Turbine Combustor." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-309.

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A numerical method is presented for predicting steady, three-dimensional, turbulent, liquid spray combusting flows in a gas turbine combustor. The Eulerian conservation equations for gas flow and the Lagrangian conservation equations for discrete fuel liquid droplets were solved. The trajectory computation of the fuel droplets provided the source terms for all the gas-phase equations. A standard k-ε submodel was used for turbulence. The combustion submodel used was a global local equilibrium model, where chemical species (CxHy, O2, CO2, H2O, CO, H2 and N2) approached local thermodynamic equili
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Floriani, Silvia L., Elaine Virmond, Christine Albrecht Althoff, Regina F. P. M. Moreira, and Humberto J. Jose´. "Potential of Industrial Solid Wastes as an Energy Source and Gaseous Emissions Evaluation in a Pilot Scale Burner." In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54355.

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Biomass is currently used as an alternative energy source in some industries. Due to problems with disposal of wastes, using biomass as an energy source is economically and environmentally attractive. In this work seven wastes from textile and food industry were characterized and their gaseous emissions resulting from their combustion in a pilot unit were measured. The aim of this paper is to evaluate the usage of industrial wastes as an energy source taking into account their composition and gaseous emissions when submitted to combustion tests. Gaseous emissions were compared to limits impose
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Barczus, Christian, Bjo¨rn Henning, and Viktor Scherer. "Combustion of Refinery Residues in a CFB-Combustor: Measurement of Intermediate Species Using FTIR." In 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-159.

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Investigations have been performed to show the feasibility of burning refinery residues (calcined petroleum coke and liquid residues) in a circulating fluidized bed combustor. These experiments were done in a CFBC system with a thermal capacity of 100 kW. The unit has been equipped with an additional dosing system for liquid fuels including a newly developed fuel lance. The pollutant formation characteristics are determined using axial profile measurements at 19 different ports along the combustion chamber. To optimize the combustion process and to minimize gaseous pollutants, several operatin
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Darbandi, Masoud, Bagher Abrar, Mohammad B. Barezban, Amin Faridvand, and Gerry E. Schneider. "Reacting Turbulent Flow Simulation to Improve the Mixing Process in an Oil Refinery Incinerator." In ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21954.

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Combustion emission is one of the most important issues in the design of industries. Todays’ strict environmental standards have limited the productions of CO, NOx, SOx, and other hazardous pollutants from the related industries. In this work, we study a typical oil refinery incinerator, which is used to burn waste gases residue produced during bitumen production process. The waste gas mainly includes a mixture including N2, H2O-vapor, and O2 species. Additionally, there are significant amounts of CO species and CxHy droplets in the waste gas composition. The measurements show that the CO emis
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Coda Zabetta, Edgardo, Patrik Yrjas, Mikko Hupa, Juha Roppo, and Marko Nylund. "Optimizing Ammonia Injection in Bio-Fuelled CFBCs." In 18th International Conference on Fluidized Bed Combustion. ASMEDC, 2005. http://dx.doi.org/10.1115/fbc2005-78114.

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The reduction of nitrogen oxides (NOx) via ammonia injection (NH3) was investigated for circulating fluidized bed combustors (CFBCs) fuelled with mixtures of coal, peat, wood, bark, and logging residues. The reference boiler was the Alholmen Kraft, i.e. the largest co-fired unit in the world (550 MWth, 194 kg/s, 165 bar, 545 °C). The boiler featured ammonia injectors at the cyclone. Fuel composition, gas composition, and temperature were measured at suitable locations along the boiler while operating with diverse fuel mixtures. A chemical model was developed for analyzing the NOx reduction and
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Gurakov, Nikita I., Ivan A. Zubrilin, Ivan V. Chechet, et al. "Simulation of Pollutant Emissions in a Small-Sized Combustion Chamber With a Gas Fuel for Various Regime Modes." In ASME 2019 Gas Turbine India Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gtindia2019-2687.

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Abstract The study shows the results of the emission simulation in a small-sized combustion chamber. The influence of temperature and equivalence ratio on CO and CxHy in the combustion chamber was investigated. Experiments and calculations were carried out for the following modes: temperature at the inlet of the combustion chamber Tinlet = 323 ... 523 K; equivalence ratio φ = 0.2 ... 0.33; normalized flow rate at the inlet of the combustion chamber λ = 0.1 ... 0.3. The simulation of combustion of natural gas was carried out. The studies were conducted using CFD software and experimental method
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