The research is located at the air laya coal mines, ptba, tanjung enim, south suma tra. The development of new sample preparation and analysis techniques has necessitated both an overhaul of many established procedures and the adoption of new ones. The mineral content and the textural relationships within the rock are described in detail. Isodis 74044en, methods for the petrographic analysis. Petrographic analysis, coal analysis, kentucky geological. Petrographic analyses of two coal samples from mcdowell county, w. A holistic approach to studies of the origin of coal and coal macerals, which includes not only petrographic but also chemical and biological studies, is advocated. Petrographic analyses have been recognized internationally as important in the context of the genesis, vertical and lateral variation, continuity, metamorphism and usage of coal. Isodis 74044en, methods for the petrographic analysis of.
Apr 18, 2011 high vol petro analysis coal analysis as received dry basis % moisture 7. Pdf coal petrographic laboratory procedures and safety manual, ii. Petroleum, coal, and related products section name. This type of petrographic analysis is based on the properties of some macerals that autofluoresce when irradiated with blue or ultraviolet light and may be of assistance in rank assessment. Coal petrographic laboratory procedures and safety manual, ii. The microscope is used in optical mineralogy and petrography, a branch of petrology which focuses on detailed descriptions of rocks. Petrographic analysis coal petrographic analysis of collected coal samples from well 1 of jharia coalfield shows the value of vitrinite ranges from 32. Solid mineral fuels pcd 7 designator of legally binding document.
Petrography is a branch of geology that is applied to concrete and concrete raw materials. Some of the industrial uses of petrographic analysis include coal rank determination, crushing and grinding analysis of coal, determining caking characteristics and char reactivity of coal taylor et al. Coal petrography article about coal petrography by the free. Pdf coal petrographic laboratory procedures and safety. Sampling techniques are described by specific iso standards, as well as national standards such as astm, sans, etc. Chemical analyses and physical properties of 12 coal samples. Effects of chemical composition and petrography of coal. Coal petrography coal petrography is a microscopic technique used to determine a coals rank degree of coalification and type amount and type of macerals on polished specimens of minus 20 mesh prepared coal. Petrographic analysis is an important tool to study the mineralogical and chemical composition of stones on monuments and to monitor the chemical weathering evolution, which is nowadays a result of acid dissolution of carbonate materials and sulfation of stone surfaces due to industrial pollution.
Please checkout our competitive prices for thin sections, photomicrographs and petrographic analysis. A petrographic analysis provides pertinent information about the structures concrete and steel materials to help engineers determine the bestsuited repair strategy. Petrographic descriptions start with the field notes. For each coal sample received for full analysis, a summary of relevant petrographic parameters is presented as well as graphical content. Microscopical determination of the reflectance of vitrinite number of amendments. For these purposes a large number of samples were collected following the pillar sampling method. Petrographic analysis and its relationship with calorific. It establishes a system for petrographic analysis and comprises five parts, as follows.
The purchase was made possible by the major support of the ppm, and equal contributions from the university research and faculty research committees. Pdf study of the total petrographic composition of coal and the relations between macerals and minerals by combining. Coal petrography in 2015 uj acquired a new petrographic system for coal and carbon analyses, at a total cost of r1. Method of determining microlithotype, carbominerite and minerite composition number of amendments. Methods for microscopical determination of the reflectance of coal macerals or iso 7404. Automated coal petrography for macerals characterization. Petrography of coal free download as powerpoint presentation. Someone who studies petrography is called a petrographer. Method of preparing coal samples part 2 method of preparing coal samples first revision in reporting the results of a test or analysis made in accordance with this standard, if the final. Standard guide for petrographic examination of aggregates for. Sample preparation each coal sample was coned and quartered and reduced to.
Coal, coal beneficiation, coal petrology, south santa catarina. Nov 02, 2014 petrographic analysis is performed to characterize coals eg exploration programs, to confirm expectations of coals eg. Earth sciences combustion methods crystal structure crystals structure xray diffraction xrays diffraction. Coal pellet preparation for petrographic analysis of coal. Free swelling index of the coal as determined applying the bunsen burner. Petrographic examination of coal from pellets or thin sections is used for many different analyses.
Petrographic analysis an overview sciencedirect topics. The performance of analytical procedures on energy materials and minerals at any point in the production chain must be completed with the utmost attention to accuracy, reputable methodology and reliable operating procedures. Petrography of coal coke fuel bituminous coal free. Jun 18, 2016 in the present study an attempt has been made to carry out the detailed petrographic characterization of the karharbari coals of talcher coalfield and to reconstruct the paleoenvironment conditions of coal formation using macerals and microlithtotypes as a tool. Coal seams d and e belong to the muara enim formation in south sumatra basin, which includes to the middle miocene to late miocene. Petrographic analyses of two coal samples from mcdowell. Organized into four parts encompassing 19 chapters, this volume starts with an overview of the petrographic analysis of coal wherein it involves two distinctive methods, namely, the reflected light and the transmitted light techniques. The international committee for coal petrology iccp has defined and published descriptions of coal macerals for both hard and brown coals iccp, 1971. Petrographic characterization and evolution of the karharbari. During the execution of the project 19932001 closespaced exploratory drilling, geological, geotechnical and geophysical logging, coal petrography, chemical analysis of selected coal samples, palynological investigations, basinal studies and geological modeling in four specific tracts namely sinhar vikianvarivi block1, singharobhitro blockii, saleh jo tar blockiii and sonalba. Crossref jin kuili, xia jian and hao duohu, the use of automated coal petrography in determining maceral group composition and the reflectance of vitrinite, international journal of coal geology. Stopes of great britain made seminal contributions to the development of. This technique examines and evaluates the optical properties and microstructural. Coal petrography article about coal petrography by the.
Purchase analytical methods for coal and coal products 1st edition. The analysis is carried out by a petrographic analysis, which is supported by the results of coal vitrinite refl ectance. The classification of coal macerals is set out in appendix a. The classification of rocks is based on the information acquired during the petrographic analysis. Coal petrography the description of the components of coal as studied macroscopically and in thin and polished sections under the microscope. Type can be assessed in terms of variety of petrographic analysis.
Coal type is related to the type of plant material in the peat and the extent of its biochemical and chemical alteration. The standardization of petrographic analysis of coal. Laboratory services for coal subject the performance of analytical procedures on energy materials and minerals at any point in the production chain must be completed with the utmost attention to accuracy, reputable methodology and reliable operating procedures. Petrographic characterization and evolution of the. Coal composition is popularly characterized in terms of macerals which are the microscopically recognizable individual constituents of coal. Petrography is a branch of petrology that focuses on detailed descriptions of rocks. Analytical methods for coal and coal products 1st edition. Types of petrography used in coal analysis include. Calculations of results of analysis of coal solid fuels coefficient of conversion. The founders of coal petrography in the ussr were iu.
The standardization of petrographic analysis of coal the standardization of petrographic analysis of coal juckes, l. Typically these reports are sent in microsoft excel format, but can be created in many formats available in todays wired world. Petrography and application of the rietveld method to the quantitative analysis of phases of natural clinker generated by coal spontaneous combustion. Predicting coke stability from petrographic analysis of illinois coals. Sgs can provide a full range of coal, coke, and byproduct petrographic services. Petrographic and chemical analysis of coal is important. Chemical analyses and physical properties of 12 coal. Producers and users of coal and coke rely on sgs, an industry leader in coal petrology, for independent, globally recognized coal petrographic analysis.
Interchangeability of results and applicability of prediction methods have been hampered up to. The popular method of proximate analysis of coal have been carried to determine the moisture content, volatile matter, fixed. Petrographic analysis is performed to characterise coals. Coal petrology is concerned with the origin, composition and properties of the distinct organic and inorganic components of different coals. Effects of chemical composition and petrography of coal for coalbed. What can petrographic analysis tell you about the condition. Mineral matter is recorded during petrographic examination of coals, but is identified more accurately by xray diffraction analysis of low temperature ash lta obtained by radiofrequency plasma ashing of coal rao and gluskoter, 1973. Petrographic characterization of coal using automatic. Maceral analysis pearson coal petrography we fingerprint. Petrography and application of the rietveld method to the. Recent research on the origin of coal macerals is presented and there is a discussion of the problems and challenges facing coal petrologists. For these purposes a large number of samples were collected following the pillar sampling method and were subjected to detailed. Both theoretical coal properties and statistical factors were applied to select appropriate variables as input sets for anfis models.
Maceral analysis 1 scope this standard sets out a procedure for the maceral analysis of coal, aimed at obtaining the proportion of each maceral occurring within a coal, expressed as a volume percentage. For quantitative petrographic analysis, it is important that coal samples should be representative of the parent material, whether individual seams of coal or mined, crushed, and beneficiated coal products. Manual petrography provides composition and rank information. Standard guide for petrographic examination of aggregates. Recommended procedures and methodology of coal description. Introduction this report describes the petrography of the following coals. Petrographic characteristics indicate that both of seams d and e dominant macerals are vitrinite, the most dominant subgroup of vitrinite is telovitrinite. Csiro coal petrography laboratory and coal grain analysis. Type of conversion raw r analytical a dry d dry ash free daf from raw state r 1 1. Preliminary results of cga analysis of parent coal and daughter char.
Used to determine rank of coal and maturation degree of heating of hydrocarbon source rocks. High vol petro analysis coal analysis as received dry basis % moisture 7. Sasaki, automatic maceral analysis of lowrank coal brown coal, international journal of coal geology, 14, 12, 103, 1989. Sgs provides coal and coke petrographic services to determine parent coal blend percentages, troubleshoot quality problems, and evaluate impacts of coke operations on the resultant product.
This manual is a muchneeded revision of an earlier usgs publication, coal petrographic laboratory procedures and safety manual moore and stanton, 1985. Coal petrography is a microscopic technique used to determine a coal s rank degree of coalification and type amount and category of macerals. The method is called polarized light microscopy plm. The main aim of this investigation is establishing that this combination gaanfis is a powerful tool for several predictions in coal processing. In the present study an attempt has been made to carry out the detailed petrographic characterization of the karharbari coals of talcher coalfield and to reconstruct the paleoenvironment conditions of coal formation using macerals and microlithtotypes as a tool. The standardization of petrographic analysis of coal wiley online. Fluorescence microscopy is currently employed in coal petrology and in kerogen studies for characterization. Definition of terms relating to petrographic analysis of coal number of amendments. The standardization of petrographic analysis of coal, journal. Petrographic analysis is performed to characterize coals eg exploration programs, to confirm expectations of coals eg. A petrographic microscope is a type of optical microscope used in petrology and optical mineralogy to identify rocks and minerals in thin sections. Petrographic analysis is used to characterize coals in terms of the maceral group.
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