Carbon Hydrogen Nitrogen Determination in Coal and Coke
Sample PreparationCrush & Grind the sample to size ≤ 0.2(GB) / 0.212(ISO) / 0.25mm (ASTM). Air dried Moisture should be tested by oven or TGA in case of calculating dry basis value Instrument5E-CHN2200 Elemental AnalyzerInstrument SettingsOxygen Flow (SV4): 3L/min; Oxygen Flow (SV5): 0.8L/min; Oxygen Flow (SV6): 0.3L/min;Main Furnace Temperature: 950 ℃; Secondly Furnace Temperature: 850
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Mercury Determination for Coal
Sample PreparationBoats should be pre-baked at 550°C for an hour or analyzed (without a sample) before loading a sampleSamples may be analyzed as air driedCrush and grind to make the sample size ≤0.2mm Instrument 5E-HGT2321 Automatic Mercury AnalyzerInstrument SettingsOxygen :Flow 300ml/min; purity ≥99.9% Pressure :0.1 MpaMain FurnaceDrying Temp.:300℃
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Ash Fusibility Determination for Coal and Coke
Sample Preparation Crucible should be pre-baked at 850℃ for an hour or analyzed (without a sample) before loading sample Samples may be analyzed as air dried Crush and grind to make the sample size ≤0.212mm(according to different standard) Instrument5E Series Muffle Furnace Instrument Settings Temperature setting: Main Furnace First burning Temp.:500℃
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