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Letteratura scientifica selezionata sul tema "Coal"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Coal"

Kotik, O. S., N. V. Pronina, N. S. Inkina, and P. A. Beznosov. "Composition Peculiarities of the Upper Devonian Coaly Rocks (The Sula River Section, North Timan)." Литология и полезные ископаемые, no. 5 (September 1, 2023): 499–514. http://dx.doi.org/10.31857/s0024497x23700192.

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A detailed coal-petrographic and mineralogical-geochemical study of humic coals and coaly rocks in the Sargaev deposits of the Upper Devonian of the Northern Timan (Sula River), which is an example of the burial of the most ancient coal-forming plants, has been carried out. The following types of organic rocks are identified in the section: “jet-like” coal, liptobiolitic silty-clayey coal, and silty-clayey-coaly mixtolites. The studied coals and coaly rocks are composed of humic organic components, represented by vitrinite and liptinite macerals, the inertinite group is of subordinate importan

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Feng, Songbao, Qiang Wei, and Xianqing Li. "Chemical Composition Variations of Altered and Unaffected Coals from the Huaibei Coalfield, China: Implications for Maturity." Energies 14, no. 11 (2021): 3028. http://dx.doi.org/10.3390/en14113028.

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The composition characteristics of altered coals in the Huaibei Coalfield, China, was investigated through a comparative analysis between altered and unaffected coals from the Wolonghu, Taoyuan and Renlou coal mines. Results indicated that the altered coals in Wolonghu coal mine are mostly anthracite coals, with a maximum vitrinite reflectance of 1.6–3.9% (average of 2.9%). Coals from Wolonghu coal mine were mainly consisted of vitrinite (66.2–97.0%), followed by inertinite (2.0–4.0%) and exinite (0.4–6.9%). Differences in volatile matter content were observed between the altered coals in Wolo

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Zhou, Guoxiao, Guoqi Wei, and Guoyi Hu. "The geochemical and organic petrological characteristics of coal measures of the Xujiahe formation in the Sichuan Basin, China." Energy Exploration & Exploitation 37, no. 3 (2019): 889–906. http://dx.doi.org/10.1177/0144598719842332.

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Upper Triassic coaly and lacustrine source rocks complicate efforts to determine the source of hydrocarbons in Sichuan Basin. Total organic carbon analyses, pyrolysis experiments, petrological examinations, and gas chromatography and gas chromatography–mass spectrometry determinations were conducted on coals, carbonaceous mudstones and mudstones collected from two outcrop sections and cores of nine wells. Results revealed that the abundant organic carbon content will prolong the hydrocarbon generation cycle for coals and then the hydrocarbon generating capacity of coals will be enhanced by sal

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El-Tawil, Asmaa A., Bo Björkman, Maria Lundgren, Frida Bäck, and Lena Sundqvist Ökvist. "Influence of Modified Bio-Coals on Carbonization and Bio-Coke Reactivity." Metals 12, no. 1 (2021): 61. http://dx.doi.org/10.3390/met12010061.

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Substitution of coal in coking coal blend with bio-coal is a potential way to reduce fossil CO2 emissions from iron and steelmaking. The current study aims to explore possible means to counteract negative influence from bio-coal in cokemaking. Washing and kaolin coating of bio-coals were conducted to remove or bind part of the compounds in the bio-coal ash that catalyzes the gasification of coke with CO2. To further explore how the increase in coke reactivity is related to more reactive carbon in bio-coal or catalytic oxides in bio-coal ash, ash was produced from a corresponding amount of bio-

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Li, Hui, Xiaoling Song, Gang Li, et al. "Effect of Coal Blending on Ash Fusibility and Slurryability of Xinjiang Low-Rank Coal." Processes 10, no. 9 (2022): 1693. http://dx.doi.org/10.3390/pr10091693.

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This work investigated the effect of coal blending on ash fusibility and slurryability of Xinjiang low-rank coal. The results showed that Xinjiang low-rank coals were characterized by high internal water content, high volatile content, high ash fusing point, and poor slurryability, which can not be directly used in coal water slurry gasification. The blending method not only reduced the ash fusibility but also improved the slurryability of these low-rank coals. When the coals with low calcium and high silicon contents (KG and YK) were blended with coal with high calcium content (SH), the ash f

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Kumar, Manish, and Hari Prakash Tiwari. "Efficient utilization of Indian Coking Coal: Opportunities and challenges." Metallurgical Research & Technology 117, no. 2 (2020): 209. http://dx.doi.org/10.1051/metal/2020017.

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The preservation of coking coal and the reduction of coke cost are gaining much importance in iron and steel industry. An effort is being made worldwide to maximize the use of inferior quality of coking coal in cokemaking without sacrificing the coke quality to minimize the coke cost. In general, Indian coking coals contain lower content of vitrinite (≤ 50%) and higher content of ash (≥ 15%) as compared to imported coking coal. Indian coking coals have poor washability characteristics also. Therefore, for making coal blend for coke making, selection of an appropriate proportion of Indian cokin

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Ramdhani, Muhammad Rizki, Yan Rizal R, Sigit Arso Wibisono, Soleh Basuki Rahmat, Muhammad Abdurachman Ibrahim, and Eko Budi Cahyono. "Characteristic Analysis of Indonesian Low and Medium Rank Coals and Their Influence on Carbon Dioxide Adsorption Capacity." Indonesian Journal on Geoscience 11, no. 3 (2024): 391–407. https://doi.org/10.17014/ijog.11.3.391-407.

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Indonesia has great deep-seated coal potential , such as Lakat coal and Muaraenim coal, which can be utilized as a medium for Carbon Capture and Storage (CCS). These coals vary in characteristic which affects their ability to adsorb or store carbon dioxide gas (CO2). The moisture content of the Lakat coal is less than that of the Muaraenim coal, while the ash content of Lakat coal is 4-5 times higher than the Muaraenim coal. Lakat coal contains more vitrinite content than Muaraenim coal, while Muaraenim coal contains more inertinite content than Lakat coal. The CO2 gas adsorption capacity of M

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Scott, S. G., and P. Crosdale. "THE WALLOON COAL MEASURES—THE NEXT COAL SEAM GASTARGET?" APPEA Journal 40, no. 1 (2000): 86. http://dx.doi.org/10.1071/aj99006.

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The Queensland coal seam gas industry has grown over the last 12 years. During this time the vast majority of exploration wells have targeted the Late Permian coal measures in the Bowen and Galilee Basins. These formations have been the major target because they contain coals with a vitrinite reflectance ranging above 0.7%. This range has always been seen as the main period for methane generation.As well as containing vast quantities of Permian coal, Queensland also has vast quantities of Middle Jurassic coals within its Mesozoic Basins. These coals have received little-to-no exploration for t

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Zhang, Qiuli, Min Luo, Long Yan, Aiwu Yang, and Xiangrong Hui. "Kinetic Analysis of Low-Rank Coal Pyrolysis by Model-Free and Model-Fitting Methods." Journal of Chemistry 2019 (November 11, 2019): 1–7. http://dx.doi.org/10.1155/2019/9075862.

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Coal SJC, coal WJG, coal ZJM, and coal HCG were selected to investigate the pyrolysis kinetics of northern Shaanxi coals. TG and DSC experiments of four coals were carried out with a synchronous thermal analyzer at heating rates 5, 10, 15, and 20 C/min, respectively. The pyrolysis characteristics were described by thermogravimetric data, and the kinetic parameters were calculated by Flynn–Wall–Ozawa (FWO), Kissinger, general integration, and MacCallum–Tanner methods. The results show that coal SJC, coal ZJM, and coal HCG all conform to the reaction series equation, the thermal decomposition re

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Amangeldikyzy, A., A. N. Kopobayeva, G. G. Blyalova та N. S. Askarova. "Қарағанды көмір бассейні көмірінің геохимиялық мамандануы". Горный журнал Казахстана, № 7(219) (8 серпня 2023): 15–20. http://dx.doi.org/10.48498/minmag.2023.219.7.008.

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There are over 300 coal basins and deposits known in Kazakhstan, the largest of them is the Karaganda Coal Basin. There is approximately a half of all industrial reserved of coal of Kazakhstan is located in its subsoils. The Karaganda Coal Basin is the forth in the CIS according to its size and coal reserves. Unique coal resources require a comprehensive and scientifi cally justifi ed approach to their research. This paper studies the impurity elements distribution pattern to assess the geochemical speciation of coals in the Karaganda Coal Basin. As a result of the research performed, it has b

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Tesi sul tema "Coal"

Sexton, Dane. "Coal agglomeration in blast furnace injection coals." Thesis, Cardiff University, 2019. http://orca.cf.ac.uk/119742/.

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In order to reduce expensive coke usage, blast furnace operators inject coal to replace a portion of the coke. However, the use of some injection coals can result in blast furnace instability and lowered permeability. This thesis is concerned with the injection of coal under entrained flow, high heating rate (104-106 °C/s) blast furnace conditions, namely the possibility of coal particle agglomeration via the use of caking coals. Methods of mitigating agglomeration via blending and pre-oxidation are tested, whilst the resultant performance implications of agglomerated coal chars are considered

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Butler, J. "Coal structure." Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378290.

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Skorupska, N. M. "Coal combustibility." Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378852.

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Afonso, Joao Mealha Sequeira. "Electrical resistivity measurements in coal : assessment of coal-bed methane content, reserves and coal permeability." Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/31591.

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Coal-bed methane (CBM), also referred to as Coal seam gas (CSG), relates to the production of methane from coal beds by drilling wells, hence lowering formation pressure, and triggering methane release. While the potential of this resource is significant, the assessment of the quantity and the producibility of methane from coal seams is highly variable. For this reason the objective of this work is to investigate the assessment of gas content, gas-in-place and coal permeability through petrophysical of analysis and by gaining a better understanding of coal bulk properties,. In this study 17 co

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Moreea, Ruksana Goolam Hossen. "Effects of solvents and coal properties in coal liquefaction." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324958.

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Ratcliffe, Giles Stuart. "NMR of heteroatomic structures of coal and coal products." Thesis, University of Warwick, 1988. http://wrap.warwick.ac.uk/107456/.

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This thesis describes various applications of high field n.m.r. for the elucidation of coal structure, and concentrates on discovering the chemical environments of the heteroatoms in coal i.e. those elements other than carbon and hydrogen. Chapter 2 describes how hydroxyl groups may be converted to trimethyl siloxyl groups, observation of which by 29si n.m.r. allows one to determine the types of hydroxyl functionalities present in the original material. Such derivatization methods are well known. However trimethyl siloxyl groups give 29si resonances that have predictable chemical shifts and so

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Trechera, Ruiz Pedro. "Environmental and occupational characterisation of coals and dust from coal mining." Doctoral thesis, Universitat Politècnica de Catalunya, 2022. http://hdl.handle.net/10803/673571.

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The main objective of this PhD thesis is the study of coal mine dust patterns produced by different types of mining operations and different types of coal. In addition, the potential links between oxidative potential (OP) of coal dust and its geochemistry have been investigated in order to identify indicators of potential concern for human health. To these ends, extensive particle size, chemical, mineralogical and OP analyses were carried out on: i) deposited coal mine dust collected in from different areas in underground and open-pit coal mines; ii) a selection of powdered coal samples from i

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Singh, Shinelka. "The potential of QEMSCAN in predicting coal washability of Mpumalanga coals." Diss., University of Pretoria, 2015. http://hdl.handle.net/2263/60858.

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Traditional float and sink analyses are undertaken to determine the washability of coal. Float and sink analyses are costly, require toxic heavy organic liquids and the procedure to wash and dry the float and discard fractions is lengthy. QEMSCAN has the ability to characterise particle density based on the mineralogical composition of the particle. The objective of this research is to determine if QEMSCAN is a viable alternative to float and sink analysis. Float and sink analysis typically requires coarse size fractions while QEMSCAN analysis requires samples to be crushed down to 1mm. Any cr

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Meyer, Petrus C. "Feasibility of thin seam coal mining at Dorstfontein Coal Mine." Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-09072005-113231/.

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Saha, Gautam. "The role of coal surface charge in catalyzed coal gasification." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 1992. http://digitalcommons.auctr.edu/dissertations/2173.

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The influence of the electrokinetic properties of coal on the adsorption and gasification activities of calcium acetate and potassium carbonate has been studied. It has been found from zeta potential measurements on lignite, subbituminous and bituminous coals that the coal particles are negatively charged in both acidic and basic solutions, although the negative charge density is more pronounced in strongly alkaline media. In general, the extent of calcium or potassium adsorption correlated with the negative zeta potentials. Calcium or potassium adsorption followed the order lignite > subbitum

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Più fonti

Libri sul tema "Coal"

Robert, Green. Coal. Cherry Lake Pub., 2009.

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Gunston, Bill. Coal. Sun Ya, 1986.

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Gary, Hodges, ed. Coal. Smart Apple Media, 2011.

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Harriet, Brown, and Thompson Ian 1964-, eds. Coal. Aladdin/Watts, 2006.

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Dineen, Jacqueline. Coal. Young Library, 1985.

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Crowell, Douglas L. Coal. Division of Geological Survey, 1998.

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Bedford, Kate. Coal. Stargazer Books, 2007.

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1956-, Logan Michael, ed. Coal. Greenhaven Press, 2007.

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Pipe, Jim. Coal. Stargazer Books, 2011.

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1969-, Haugen David M., ed. Coal. Greenhaven Press, 2007.

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Capitoli di libri sul tema "Coal"

Luttrell, Gerald H., and Rick Q. Honaker. "Coal coal Preparation coal preparation." In Encyclopedia of Sustainability Science and Technology. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_431.

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Lee, Sunggyu, and Robert Iredell. "Coal, Coal Derivatives, And Coal Products." In Alternative Fuels. Routledge, 2023. http://dx.doi.org/10.1201/9781315137179-2.

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Murad, Enver, and John Cashion. "Coal and Coal Products." In Mössbauer Spectroscopy of Environmental Materials and Their Industrial Utilization. Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-9040-2_10.

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Dietl, Gulshan. "Coal and Coal Miners." In The Global Game of Coal. Routledge India, 2024. https://doi.org/10.4324/9781003545026-1.

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Bährle-Rapp, Marina. "coal." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_2215.

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Crowson, Philip. "Coal." In Mining in the Asia-Pacific. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61395-6_10.

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Greb, Stephen F., Cortland F. Eble, and James C. Hower. "Coal." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-39193-9_153-1.

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Greb, Stephen F., Cortland F. Eble, and James C. Hower. "Coal." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39312-4_153.

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Donnelly, Laurance. "Coal." In Selective Neck Dissection for Oral Cancer. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-12127-7_55-1.

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Woodhouse, Roger. "Coal." In British Policy towards France, 1945–51. Palgrave Macmillan UK, 1995. http://dx.doi.org/10.1007/978-1-349-24300-6_3.

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Atti di convegni sul tema "Coal"

Khoiutanov, Evgenii, Natalia Batugina, Vladislav Fedorov, and Yurii Andreev. "ASSESSMENT AND PROSPECTS FOR DEVELOPMENT OF COAL RESOURCE POTENTIAL OF THE NORTH-EAST ARCTIC ZONE OF THE REPUBLIC OF SAKHA (YAKUTIA)." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s03.29.

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The article analyzes the mineral and raw material base of coal deposits of the Arctic zone of the Republic of Sakha (Yakutia), all of them were explored in the Soviet time in the middle of 40-50 years. The paper presents a comparative characteristic of the geographic and economic, mining and geological and geotechnological conditions of coal deposits in the basins of north rivers Jana and Indigirka. The qualitative characteristics of the coals have been studied, which showed that from the point of view of consumers from the local better are the coals of the Krasnorechenskoe and Tikhonskoe depo

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Kung, Steven C. "Online Gas Measurements in a Pilot-Scale Combustion Facility for Fireside Corrosion Study." In AM-EPRI 2010, edited by D. Gandy, J. Shingledecker, and R. Viswanathan. ASM International, 2010. http://dx.doi.org/10.31399/asm.cp.am-epri-2010p0268.

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Abstract A comprehensive fireside corrosion study was undertaken to better understand the corrosion mechanisms operating on the superheaters and lower furnace walls of advanced coal- fired utility boilers. The study intended to evaluate the fireside conditions generated from burning eight U.S. coals individually in a pilot-scale combustion facility. These coals consisted of a wide range of compositions that are of interest to the utility industry. The combustion facility was capable of producing the realistic conditions of staged combustion existing in coal-fired utility boilers. During each o

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Zhao, Yifan, Hua Wei, Changlan Wang, Linlin Li, and Bingshu Li. "Study on Size Optimization of Coal Pillar in Coal Mine Roadway." In 2025 5th International Conference on Neural Networks, Information and Communication Engineering (NNICE). IEEE, 2025. https://doi.org/10.1109/nnice64954.2025.11064694.

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Raj, S. "Coal Oxidation." In ASME 1988 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1988. http://dx.doi.org/10.1115/88-gt-238.

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Coals contain considerable amounts of oxygen in their structures ranging from 30% in brown coal to about 1.5% in anthracites. The distribution of coal oxygen in various functionalities changes drastically with increasing rank. The hetero-atom functionalities in coal and coal products are of importance in the processing of coal. The process of coal conversion relevant to the steam and gas turbine applications are pyrolysis, oxidation and combustion processes. Initial stages of pyrolysis and oxidation (combustion) are the thermal decomposition of the solid coal matrix to free radicals. Oxygen, s

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Saifujjaman, Md, Kwangkook Jeong, and Shinku Lee. "Modeling for Mineral Redistribution of Coal Blending During Pulverized Coal Combustion." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87834.

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This paper represents an analytical model for predicting mineral particle redistribution of coal blending during pulverized coal (PC) combustion in a pulverized coal-fired boiler. The objective of this research is to develop a computer program to perform the mass balance of total minerals after transformation during combustion. A MATLAB code was developed for coal blending mineral redistribution from single coal mineral redistribution in modular approach based on relative Hardgrove Grindability Index (HGI) of coals. The calculations of the single coal number of ash particles before and after c

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Iki, Norihiko, Osamu Kurata, and Atsushi Tsutsumi. "Performance of IGFC With Exergy Recuperation." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26675.

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The Integrated coal Gasification Combined Cycle (IGCC) is considered to be a very clean and efficient system for coal-fired power generation. And given the development of 100 MW-scale solid oxide fuels cells (SOFCs), the integrated coal Gasification Fuel Cell combined cycle (IGFC) would be the most efficient coal-fired power generation system. However, more energy efficient power generation systems must be developed in order to reduce CO2 emissions over the middle and long term. Thus, the authors have proposed the Advanced Integrated coal Gasification Combined Cycle (A-IGCC) and Advanced IGFC

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Bhattacharya, Chittatosh, and Nilotpal Banerjee. "Integrated Drying and Partial Coal Gasification for Low NOX Pulverized Coal Fired Boiler." In ASME 2011 Power Conference collocated with JSME ICOPE 2011. ASMEDC, 2011. http://dx.doi.org/10.1115/power2011-55108.

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Coal bound moisture is a key issue in pulverized coal fired power generation. Coal being hygroscopic, accumulates considerable surface moisture with seasonal variations. A few varieties of coals are having unusually high inherent as well as surface moisture that affects the pulverizer performance and results lower thermal efficiency of the plant. A proper coal drying is essential for effective pulverization and pneumatic conveyance of coal to furnace. But, the drying capacity is limited by available hot airflow and temperature of hot primary air. Even, use of high-grade coal for blending would

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Takuwa, Tsuyoshi, and Ichiro Naruse. "Effect of Mineral Matters in Coal on Formation Behaviors of Particulate Matter and Alkali Metal Compounds During Coal Combustion." In 18th International Conference on Fluidized Bed Combustion. ASMEDC, 2005. http://dx.doi.org/10.1115/fbc2005-78039.

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Combustion tests for 2 types of coal (SC and BT coals), which have similar combustion performance and main fraction in the ash compositions, were conducted, using an electrically heated drop tube furnace. The burning particles were sampled by the Low Pressure Impactor (LPI) and analyzed concentration of alkali metal in the collected particles. Furthermore, they were observed by a scanning electron microscope (SEM) to discuss formation behaviors of the fine particles during combustion. In order to elucidate the relationship between formation characteristics of fine particulates during combustio

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Behera, Sushanta Kumar, S. Chakraborty, and B. C. Meikap. "Upgradation of Low Grade Coal to High Quality Coal by Chemical Beneficiation Technique." In ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/power-icope2017-3057.

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Low rank or grade coals (LGC) are widely distributed over the world. Coal plays a vital role in the global energy demand especially through power generation and it mitigates the energy poverty. The major challenges by the utility of coal as regarding to energy security, a risk of climate change, and increasing of the energy demands are the main portfolio to develop the advanced technology for coal beneficiation. The gradual depletion of high quality coal and cost effective which become a significant issue for power generation while the low grade coals were served as low cost fuel and as an alt

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Ajilkumar, A., T. Sundararajan, and U. S. P. Shet. "Gasification of Indian Coal in a Tubular Coal Gasifier." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32648.

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In spite of the high ash content, Indian coals have been widely used for the generation of power and industrial steam in India. Being considered as the technology for future in terms of efficiency and cleaner environment, coal gasification carries much importance since India has a large amount of coal reserves. In this paper, the numerical simulations have been performed on gasification performance of three types of Indian coals in atmospheric as well as pressurized conditions in an entrained flow, air-blown tubular gasifier. In the model, continuous phase conservation equations are solved in

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Rapporti di organizzazioni sul tema "Coal"

ตระการพฤกษ์, วิมลรัตน์. การเร่งปฏิกิริยาแบบเลือกจำเพาะด้วยโลหะออกไซด์ผสมในการผลิตแอซิโทฟีโนน : รายงานวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 2012. https://doi.org/10.58837/chula.res.2012.31.

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ในงานวิจัยนี้ ได้สังเคราะห์ layered bouble hydroxides ที่มีโลหะ Co และ Mn ชนิดเดียวและทั้งสองชนิดผสมกัน หลังจากทำการเผาจะเปลี่ยนไปเป็นโลหะออกไซด์: CoAl-oxide, MnAl-oxide, CoMnAl-oxide พิสูจน์เอกลักษณ์ของสารด้วยเทคนิคต่างๆ ได้แก่ การเลี้ยวเบนรังสีเอ็กซ์ (XRD) ฟูเรียร์ทรานสฟอร์มอินฟราเรดสเปกโทรสโคปี (FTIR) ICP (Inductively coupled plasma spectrometry) การวิเคราะห์เทอร์โมแกรวิเมทรี (TGA) วัดพื้นที่ผิวด้วย BET (Brunauer-Emmett-Teller) และ Temperature programmed reduction (TPR) สารที่มีองค์ประกอบของโลหะในปริมาณตามที่กำหนด และมีโครงสร้างแบบ spinel มีพื้นที่ผิวสูง ผลการทดลองเร่งปฏิกิริยาออกซิเดชันของ

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Davison, Ryan. Rare earth element concentrations in coal and associated sediments in central and eastern Montana: Year 1 coal assay results and interpretation:. Montana Bureau of Mines and Geology, 2025. https://doi.org/10.59691/gyqo3453.

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Mintz, K. J. The explosibility of three canadian coal dusts. Natural Resources Canada/CMSS/Information Management, 1989. http://dx.doi.org/10.4095/331786.

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Explosibility measurements on coal dusts from the Cape Breton Development Corporation's Lingan Mine, TransAlta's Highvale Mine and the Quintette Mine in B.C. have been carried out along with some tests on Pittsburgh Standard coal dust. The Quintette coal dust would not explode in the classical Hartmann apparatus, but did explode in the new 20-L vessel using a more powerful ignition source. The minimum explosible concentrations of the Lingan, Highvale and Pittsburgh coal dusts were all about the same (40 - 45 mg/L), that of the Quintette was higher (140 mg/L). The difference may be attributed t

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Bößner, Stefan, Dimas Fauzi, and Pranita Rimal. A just coal transition in Indonesia: actors, framings and future directions. Stockholm Environment Institute, 2023. http://dx.doi.org/10.51414/sei2023.051.

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Indonesia, the world’s third largest coal producer after China and India, committed to becoming a “net-zero” economy by 2060 at the UN Climate Change Conference (COP26) in Glasgow in 2021. However, reaching this objective will be difficult, given the importance of coal for both the country’s economy and power generation, but also necessary. Included in the many challenges are diverging visions of stakeholders as to how and sometimes whether to phase out coal usage, and how to follow a “just energy transition” pathway. This paper, based both on a desk review of scientific and other literature a

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Vega-Araújo, José, Juliana Peña Niño, Elisa Arond, and Fernando Patzy. Navigating a just energy transition from coal in the Colombian Caribbean. Stockholm Environment Institute, 2023. http://dx.doi.org/10.51414/sei2023.063.

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The findings reported in this paper provide insights into the power dynamics and distributional politics that shape resistance to phasing out coal and to opportunities for change, as part of a broader project comparing these lessons and experiences in Colombia, South Africa and Indonesia, aiming to understand challenges to a just energy transition in coal-producing countries in the Global South. The current Colombian government has helped centre the concept of a just energy transition in public debate, encompassing a broad range of questions and concerns. National, regional and local discussio

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Davison, Ryan. Preliminary Data Release of Whole-Rock Assays of Coal-Related Deposits in Central and Eastern Montana:. Montana Bureau of Mines and Geology, 2024. http://dx.doi.org/10.59691/uttu4489.

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This file provides whole-rock assay and supporting metadata for samples of coal and associated sediments from mine and outcrop sites in central and eastern Montana. These assays are to investigate the critical mineral potential of coal in Montana.

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Davison, Ryan. Preliminary data release 2 of whole-rock assays of coal-related deposits in central and eastern Montana. Montana Bureau of Mines and Geology, 2025. https://doi.org/10.59691/injl9073.

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This file provides whole-rock assay and supporting metadata for samples of coal samples and associated sediments from mine and outcrop sites in central and eastern Montana. These assays are to investigate the critical mineral potential of coal in Montana.

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Lee, G. K. Canadian coals, the environment and new coal technologies. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/304466.

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Skone, Timothy J. Coal Biomass Cofiring Pulverized Coal Boiler Facility. Office of Scientific and Technical Information (OSTI), 2011. http://dx.doi.org/10.2172/1509347.

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Baxter, L. L. Coal char fragmentation during pulverized coal combustion. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/86903.

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