Relevant bibliographies by topics / Aerosols - Production Mechanisms

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Academic literature on the topic 'Aerosols - Production Mechanisms'

Author: Grafiati
Published: 6 September 2023
Last updated: 31 July 2025

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Journal articles on the topic "Aerosols - Production Mechanisms"

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Lin, G., J. E. Penner, S. Sillman, D. Taraborrelli, and J. Lelieveld. "Global mechanistic model of SOA formation: effects of different chemical mechanisms." Atmospheric Chemistry and Physics Discussions 11, no. 9 (2011): 26347–413. http://dx.doi.org/10.5194/acpd-11-26347-2011.

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Abstract. Recent experimental findings indicate that Secondary Organic Aerosol (SOA) represents an important and, under many circumstances, the major fraction of the organic aerosol burden. Here, we use a global 3-d model (IMPACT) to test the results of different mechanisms for the production of SOA. The basic mechanism includes SOA formation from organic nitrates and peroxides produced from an explicit chemical formulation, using partition coefficients based on thermodynamic principles. We also include the formation of non-evaporative SOA from the reaction of glyoxal and methylglyoxal on aque
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Chen, J. P., T. S. Tsai, and S. C. Liu. "Aerosol nucleation spikes in the planetary boundary layer." Atmospheric Chemistry and Physics Discussions 10, no. 11 (2010): 26931–59. http://dx.doi.org/10.5194/acpd-10-26931-2010.

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Abstract. Photochemically driven nucleation bursts, which typically occur in a few hours after sunrise, often produce strong aerosol number concentration (ANC) fluctuations. The causes of such ANC spikes were investigated using a detailed aerosol model running in the parcel mode. Two potential mechanisms for the ANC spikes are proposed and simulated. The blocking of actinic flux by scattered clouds can significantly influence new particle production, but this does not cause strong fluctuations in the number of aerosols within sizes greater than the detection limit of our measurements. A more p
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Chen, J. P., T. S. Tsai, and S. C. Liu. "Aerosol nucleation spikes in the planetary boundary layer." Atmospheric Chemistry and Physics 11, no. 14 (2011): 7171–84. http://dx.doi.org/10.5194/acp-11-7171-2011.

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Abstract. Photochemically driven nucleation bursts, which typically occur within a few hours after sunrise, often produce strong aerosol number concentration (ANC) fluctuations. The causes of such ANC spikes were investigated using a detailed aerosol model running in the parcel mode. Two potential mechanisms for the ANC spikes were proposed and simulated. The blocking of actinic flux by scattered clouds can significantly influence new particle production, but this does not cause strong fluctuations in the number of aerosols within sizes greater than the detection limit of our measurements. A m
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Dyson, Joanna E., Graham A. Boustead, Lauren T. Fleming, et al. "Production of HONO from NO<sub>2</sub> uptake on illuminated TiO<sub>2</sub> aerosol particles and following the illumination of mixed TiO<sub>2</sub>∕ammonium nitrate particles." Atmospheric Chemistry and Physics 21, no. 7 (2021): 5755–75. http://dx.doi.org/10.5194/acp-21-5755-2021.

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Abstract. The rate of production of HONO from illuminated TiO2 aerosols in the presence of NO2 was measured using an aerosol flow tube system coupled to a photo-fragmentation laser-induced fluorescence detection apparatus. The reactive uptake coefficient of NO2 to form HONO, γNO2→HONO, was determined for NO2 mixing ratios in the range 34–400 ppb, with γNO2→HONO spanning the range (9.97 ± 3.52) × 10−6 to (1.26 ± 0.17) × 10−4 at a relative humidity of 15 ± 1 % and for a lamp photon flux of (1.63 ± 0.09) ×1016 photons cm−2 s−1 (integrated between 290 and 400 nm), which is similar to midday ambien
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He, Pengzhen, Becky Alexander, Lei Geng, et al. "Isotopic constraints on heterogeneous sulfate production in Beijing haze." Atmospheric Chemistry and Physics 18, no. 8 (2018): 5515–28. http://dx.doi.org/10.5194/acp-18-5515-2018.

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Abstract. Discerning mechanisms of sulfate formation during fine-particle pollution (referred to as haze hereafter) in Beijing is important for understanding the rapid evolution of haze and for developing cost-effective air pollution mitigation strategies. Here we present observations of the oxygen-17 excess of PM2.5 sulfate (Δ17O(SO42−)) collected in Beijing haze from October 2014 to January 2015 to constrain possible sulfate formation pathways. Throughout the sampling campaign, the 12-hourly averaged PM2.5 concentrations ranged from 16 to 323 µg m−3 with a mean of (141 ± 88 (1σ)) µg m−3, wit
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Flores, J. M., G. Bourdin, O. Altaratz, et al. "Tara Pacific Expedition’s Atmospheric Measurements of Marine Aerosols across the Atlantic and Pacific Oceans: Overview and Preliminary Results." Bulletin of the American Meteorological Society 101, no. 5 (2020): E536—E554. http://dx.doi.org/10.1175/bams-d-18-0224.1.

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Abstract Marine aerosols play a significant role in the global radiative budget, in clouds’ processes, and in the chemistry of the marine atmosphere. There is a critical need to better understand their production mechanisms, composition, chemical properties, and the contribution of ocean-derived biogenic matter to their mass and number concentration. Here we present an overview of a new dataset of in situ measurements of marine aerosols conducted over the 2.5-yr Tara Pacific Expedition over 110,000 km across the Atlantic and Pacific Oceans. Preliminary results are presented here to describe th
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Gong, Xianda, Jiaoshi Zhang, Betty Croft, et al. "Arctic warming by abundant fine sea salt aerosols from blowing snow." Nature Geoscience 16, no. 9 (2023): 768–74. http://dx.doi.org/10.1038/s41561-023-01254-8.

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AbstractThe Arctic warms nearly four times faster than the global average, and aerosols play an increasingly important role in Arctic climate change. In the Arctic, sea salt is a major aerosol component in terms of mass concentration during winter and spring. However, the mechanisms of sea salt aerosol production remain unclear. Sea salt aerosols are typically thought to be relatively large in size but low in number concentration, implying that their influence on cloud condensation nuclei population and cloud properties is generally minor. Here we present observational evidence of abundant sea
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Li, Siyuan, Dantong Liu, Shaofei Kong, et al. "Evolution of source attributed organic aerosols and gases in a megacity of central China." Atmospheric Chemistry and Physics 22, no. 10 (2022): 6937–51. http://dx.doi.org/10.5194/acp-22-6937-2022.

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Abstract. The secondary production of oxygenated organic aerosol (OOA) impacts air quality, climate, and human health. The importance of various sources in contributing to the OOA loading and associated different ageing mechanisms remains to be elucidated. Here we present a concurrent observation and factorization analysis on the mass spectra of organic aerosol (OA) by a high-resolution aerosol mass spectrometer and volatile organic compounds (VOCs) by a proton transfer reaction mass spectrometer in Wuhan, a megacity in central China, during autumn. The full mass spectra of organics with two p
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Lin, G., J. E. Penner, S. Sillman, D. Taraborrelli, and J. Lelieveld. "Global modeling of SOA formation from dicarbonyls, epoxides, organic nitrates and peroxides." Atmospheric Chemistry and Physics 12, no. 10 (2012): 4743–74. http://dx.doi.org/10.5194/acp-12-4743-2012.

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Abstract. Recent experimental findings indicate that secondary organic aerosol (SOA) represents an important and, under many circumstances, the major fraction of the organic aerosol burden. Here, we use a global 3-D model (IMPACT) to test the results of different mechanisms for the production of SOA. The basic mechanism includes SOA formation from organic nitrates and peroxides produced from an explicit chemical formulation, using partition coefficients based on thermodynamic principles together with assumptions for the rate of formation of low-volatility oligomers. We also include the formati
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Song, Shaojie, Meng Gao, Weiqi Xu, et al. "Possible heterogeneous chemistry of hydroxymethanesulfonate (HMS) in northern China winter haze." Atmospheric Chemistry and Physics 19, no. 2 (2019): 1357–71. http://dx.doi.org/10.5194/acp-19-1357-2019.

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Abstract. The chemical mechanisms responsible for rapid sulfate production, an important driver of winter haze formation in northern China, remain unclear. Here, we propose a potentially important heterogeneous hydroxymethanesulfonate (HMS) chemical mechanism. Through analyzing field measurements with aerosol mass spectrometry, we show evidence for a possible significant existence in haze aerosols of organosulfur primarily as HMS, misidentified as sulfate in previous observations. We estimate that HMS can account for up to about one-third of the sulfate concentrations unexplained by current ai
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Dissertations / Theses on the topic "Aerosols - Production Mechanisms"

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Wiegand, Aaron Nathaniel. "Modelling photochemical production of fine particulates in a toluene/NOx/water vapour system." Thesis, Queensland University of Technology, 1999. https://eprints.qut.edu.au/36975/1/36975_Digitised%20Thesis.pdf.

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This work investigates the computer modelling of the photochemical formation of smog products such as ozone and aerosol, in a system containing toluene, NOx and water vapour. In particular, the problem of modelling this process in the Commonwealth Scientific and Industrial Research Organization (CSIRO) smog chambers, which utilize outdoor exposure, is addressed. The primary requirement for such modelling is a knowledge of the photolytic rate coefficients. Photolytic rate coefficients of species other than N02 are often related to JNo2 (rate coefficient for the photolysis ofN02) by a simple f
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Govardhan, Gaurav. "Simulations of Aerosol Species over the Indian Region: Evaluation and Improvements." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/4113.

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Increasing aerosol loading over the south Asian region, holds a potential of, perturbing the south Asian monsoon system and the Himalayan glacial coverage, and thus affecting lives of (1/4)th of the world’s population. Though space-based or ground-based measurements assists us in keep-ing an account of the composite aerosol loading over the region, they have their own limitations. Numerical models on the other hand help us, regionalize our understanding of aerosol-climate interactions and moreover, predict future scenarios, which makes them a favorite tool of policy makers. Nonetheless, realiz
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Books on the topic "Aerosols - Production Mechanisms"

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Lewis, Ernie R. Sea salt aerosol production: Mechanisms, methods, measurements and models : a critical review. American Geophysical Union, 2004.

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Schwartz, Stephen E., and Ernie R. Lewis. Sea Salt Aerosol Production: Mechanisms, Methods, Measurements, and Models. Wiley & Sons, Limited, John, 2013.

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Sea Salt Aerosol Production: Mechanisms, Methods, Measurements, and Models - A Critical Review (Geophysical Monograph). Amer Geophysical Union, 2005.

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Kucharski, Fred, and Muhammad Adnan Abid. Interannual Variability of the Indian Monsoon and Its Link to ENSO. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190228620.013.615.

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The interannual variability of Indian summer monsoon is probably one of the most intensively studied phenomena in the research area of climate variability. This is because even relatively small variations of about 10% to 20% from the mean rainfall may have dramatic consequences for regional agricultural production. Forecasting such variations months in advance could help agricultural planning substantially. Unfortunately, a perfect forecast of Indian monsoon variations, like any other regional climate variations, is impossible in a long-term prediction (that is, more than 2 weeks or so in adva
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Book chapters on the topic "Aerosols - Production Mechanisms"

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Bharali, Bhagawan, Zafar Ullah, Bhupendra Haloi, Jayashree Chutia, and Sonbeer Chack. "Phytotoxicity of Oxidised and Reduced Nitrogen Aerosols on Potato (Solanum Tuberosum L.) Crop." In Sustainable Potato Production and the Impact of Climate Change. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1715-3.ch008.

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In a field trial (2012), simulated aerosols: NH4Cl (reduced) and NaNO2 (oxidised) @ 10 &amp; 20 kg ha-1y-1 (˜ 100 ppm &amp; ˜ 200 ppm respectively), 1000 cm3m-2 of each along with a control were misted to population of Kufri Jyoti at different growth stages viz., vegetative (10-60 DAS), tuber initiation (60-90 DAS) and tuber bulking &gt;90DAS). The higher dose of aerosols lowered nitrate reductase activity, nitrogen use efficiency, cell membrane stability, tuber yield, but increased photosynthesis, peroxidise activity significantly. The mechanisms of injury in terms of higher peroxidase activi
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Calvert, Jack G., John J. Orlando, William R. Stockwell, and Timothy J. Wallington. "The Oxides of Nitrogen: Their Relation to Tropospheric Ozone." In The Mechanisms of Reactions Influencing Atmospheric Ozone. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190233020.003.0006.

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Reactive (or “odd”) nitrogen is emitted into the atmosphere in a variety of forms, with the most important being NOx (NO and NO2), ammonia (NH3), and nitrous oxide (N2O). Emissions of these species into the atmosphere have been summarized, for example, by the IPCC Fourth Assessment Report (the AR4; IPCC, 2007). Some discussion of NOx emissions and trends has also been presented in Chapter I. Emissions of NOx are mainly the result of anthropogenic activity associated with fossil fuel combustion and industrial activity. For the 1990s, the AR4 estimates total anthropogenic NOx emissions of 33.4 T
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Calvert, Jack G., John J. Orlando, William R. Stockwell, and Timothy J. Wallington. "Chemical Mechanisms for Air Quality Modeling and Their Applications." In The Mechanisms of Reactions Influencing Atmospheric Ozone. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190233020.003.0012.

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A chemical mechanism is a critical component of an air quality model. Tropospheric gas phase chemical mechanisms for air quality modeling are designed to simulate the production of ozone, acids, and aerosol precursors. Therefore, their focus is on the oxidation chemistry of ozone, nitrogen oxides, sulfur compounds, and organic compounds. Figure IX-A-1 is an overview of the most important cycles of radicals that must be represented in a chemical mechanism for air quality modeling. The processes shown schematically on one level may appear to be relatively simple, but, in reality, the chemical me
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Calvert, Jack G., John J. Orlando, William R. Stockwell, and Timothy J. Wallington. "The Impact of Inorganic Trace Gases on Ozone in the Atmosphere." In The Mechanisms of Reactions Influencing Atmospheric Ozone. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190233020.003.0010.

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A major focus of the previous six chapters has been on the chemistry and interactions of the HOx, NOx, and volatile organic compound (VOC) families. Details of the reactions of O3 NO3, and HO that act to initiate VOC oxidation have been presented, as has the ensuing chemistry involving organic peroxy and alkoxy radicals and their interactions with NOx. In this chapter, we complete our discussion of thermal chemical reactions that impact tropospheric ozone. The chapter begins with a discussion of the budgets of two simple (inorganic) carbon-containing species not yet discussed, carbon dioxide (
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Conference papers on the topic "Aerosols - Production Mechanisms"

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Nuñez, M. Hidalgo, P. Cavalli, G. A. Petrucci, and N. Omenetto. "Feasibility Study of On-line Detection of Sulphuric Acid Aerosols in the Atmosphere by Laser Photofragmentation and Plasma Spectroscopy." In Laser Applications to Chemical and Environmental Analysis. Optica Publishing Group, 1998. http://dx.doi.org/10.1364/lacea.1998.ltud.1.

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A major interest of our Institute lies in the study of the atmospheric sulphur cycle and in the oxidation mechanism(s) of Dimethylsulfide (DMS) in air. DMS originates from the ocean biota and its crucial role in the formation of atmospheric aerosols is well-documented (1,2). When DMS is oxidized, it generates SO2 that can be further oxidized to H2SO4, inducing the production and growth of new aerosol particles that can act as cloud condensation nuclei and affect the Earth’s albedo (2). The possibility of detecting sulphuric acid aerosols with laser excitation has been discussed, to the best of
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Ju, C., J. Sun, D. J. Michalek, and J. W. Sutherland. "Application of an Imaging System to Study Machining Mist Formation via an Atomization Mechanism." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32033.

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Airborne inhalable particulate in the workplace represents a significant health hazard. One of the primary sources of this particulate is mist produced through the application of cutting fluids in machining operations. One of the important mechanisms for the production of cutting fluid mist is the atomization mechanism. In this paper, atomization is studied by applying cutting fluid to a rotating workpiece such as found in turning. An imaging system is presented for the study of the atomization mechanism. The imaging system extends the size measurement range typically achievable with aerosol s
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Rurup, Jeremy D., and Ethan B. Secor. "Validation and Translation of Process Monitoring Tools for Commercial Aerosol Jet Printing Systems." In ASME 2024 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/ipack2024-141269.

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Abstract Aerosol jet printing is a promising method for additive electronics packaging, offer digital, non-contact deposition of functional materials with resolution below 20 microns. However, process reliability remains a key challenge in translating this method to production environments. In recent years, we have developed a real-time process monitoring technology for aerosol jet printing using light scattering from the aerosol stream. In this work, we aim to translate this capability to commercial printing systems. Experimental efforts use two different commercial printing systems, namely S
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Goel, Paridhi, and Arun K. Nayak. "Numerical Investigation of Aerosol Collection Efficiency in a Venturi Scrubber." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-82489.

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In an extreme situation, as happened in Fukushima nuclear power plant, the failure of multiple safety systems may lead to severe core damage and melt relocation. This may be accompanied by production of large amount of steam which may result in the over-pressurization of the containment. Another associated concern is that the exposed core melt is highly radioactive which if exposed to the atmosphere can ruthlessly deteriorate the quality of environment and living beings. The radioactive materials present in the containment can be in vapor form or aerosol form. The containment of a nuclear powe
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Al-Safran, Eissa, Batoul Al-Ali, and Hessah Alrashidi. "Evaluation and Modeling of Asphaltene Deposition in Oil Wells." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206366-ms.

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Abstract Asphaltene deposition in oil wells is a challenging flow-assurance phenomenon that affects the well production, project economics, and operational safety. While asphaltene precipitation is governed by the hydrocarbon mixture thermodynamics, Asphaltene deposition is governed by the complexity of flow hydrodynamic behavior and characteristics. This study aims to evaluate and compare the performance of the existing asphaltene deposition models and improve the current theoretical understanding of the deposition phenomenon by developing better predictive asphaltene deposition model. A larg
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Ma, L., M. C. Pourkashanian, and C. W. Wilson. "A CFD Model for Reacting Flows in an Aero-Engine Hot End Simulator." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68077.

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This paper presents a three-dimensional CFD model that numerically simulates the physical and chemical species transformations in the aero-engine turbine and nozzle aimed at contributing to an improved understanding of the minor species emitted by the aircraft, in particular the production of the gaseous aerosol precursors such as SO3, H2SO4 and HONO within the aircraft engine. The results presented are for the model applications to an aero-engine Hot End Simulator (HES). The HES was designed in the PARTEMIS programme to recreate the thermodynamic profile in the turbine and nozzle through whic
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Hamilton, Ian S., Donald A. Halter, Donald F. Haumann, Erich H. Fruchtnicht, and Matthew G. Arno. "Characterization of NORM Sources in Petroleum Coke Calcining Processes." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16314.

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Petroleum coke, or “petcoke,” is a waste by-product of the oil refining industry. The majority of petcoke consumption is in energy applications; catalyst coke is used as refinery fuel, anode coke for electricity conduction, and marketable coke for heating cement kilns. Roskill has predicted that long-term growth in petroleum coke production will be maintained, and may continue to increase slightly through 2012. Petcoke must first be calcined to drive off any undesirable petroleum by-products that would shorten the coke product-life cycle. As an example, the calcining process can take place in
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Reports on the topic "Aerosols - Production Mechanisms"

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Meskhidze, Nicholas. Production Mechanism, Number Concentration, Size Distribution, Chemical Composition, and Optical Properties of Sea Spray Aerosols Workshop, Summer 2012. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1096933.

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