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Coal grading for non-coking coal is determined by the Gross Calorific Value (GCV), whereas the grading of coking coal is based on ash content. For semi-coking or weakly coking coal, the classification considers both ash and moisture content, as per the prevailing notification. Coking Coal Grades: Semi-coking and Weakly Coking Coal Grades: Non-coking Coal Grades:
What Is Equilibrated Moisture in coal ? Equilibrium moisture in coal refers to the moisture content that coal attains when it is stored in a specific environment and reaches a state of moisture balance with that environment. This state of moisture balance is achieved when the coal has been exposed to the same temperature and…
Sulfur is a common element found in coal. It is present in varying amounts depending on the type of coal and the location where it was mined. When coal is burned for energy, sulfur can be released into the atmosphere as sulfur dioxide (SO2). This can contribute to acid rain and air pollution, which can…
ASH FUSION TEMERATURE What Is ASH FUSION TEMPERATURE ? Ash Fusion Temperature (AFT) is an important property of coal, which is the temperature at which the ash residue from burning coal starts to soften and fuse together. The AFT is typically determined by heating a sample of coal in a high-temperature furnace, and observing the…
ACID CORRECTION IN GCV (Sulphuric and Nitric Acid) In the context of GCV (Gross Calorific Value) testing, acid correction typically refers to the process of neutralizing acidic impurities in the fuel sample before performing the GCV test. This correction is necessary to ensure that the GCV result accurately reflects the true energy content of the…
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Gross Calorific Value By Using Bomb Calorimeter (LECO AC 500) The bomb calorimeter is used to analyze gross calorific value of any fuel. The amount of heat evolved when a unit weight of fuel is completely burnt and product of combustion cooled to normal Condition (with water Vapor condensed as a result). The heat contained in…
CHNS Analysis(Ultimate Analysis) in Coal By Vario Macro Cube Instruments( Elemental Analyzer) Chemistry and Pharmaceutics Fine chemicals, pharmaceuticals, catalysts, polymers, oil products, etc. Industrial quality control Rubber, fertilizers, building materials, dyestuffs, cosmetics, glue, etc. Agriculture and Environment Plants, soil, food, compost, sewage sludge, waste, etc. Fossil fuels and power generation Coal, coke, petrochemical products, residual waste Special applications Chlorine determination, oxygen…
Coal Analysis Chemical analyses and testing of a coal sample are generally done off site in a laboratory. The main purpose of coal sample analysis is to determine the quality or rank of the coal along with its intrinsic characteristics. Furthermore this data will be used as the fundamental consideration for coal trading and its…
PRIMARY TREATMENT PLANT (PT PLANT) Overview of PT Plant All water sources contain different inorganic and organic substances that must be removed during water treatment to produce water that is fit for domestic use. An integral part of the treatment train is the treatment and disposal of the substances that are removed from the water…