The analytical parameters vary slightly depending on the intended use of the raw coal in a project. For coal chemical applications, these typically include conventional analysis (including total moisture, internal moisture, volatile matter, fixed carbon, ash content, calorific value, etc.), elemental analysis, grindability index, ash melting point, slurry-forming capacity, analysis of coal ash components, analysis of trace elements and harmful elements, viscosity-temperature properties, and reactivity
This post was last edited by shuker666 on 2019-8-13 at 17:13. Industrial analysis (total moisture, moisture on an air-dry basis, ash content, volatile matter, fixed carbon), elemental analysis (C, H, O, N, S), calorific value (bomb calorific value, lower heating value, higher heating value), harmful elements (phosphorus, chlorine, lead, cadmium, chromium, arsenic, mercury, fluorine), carbon dioxide reactivity (800–1100°C, 50°C increments), crush resistance, thermal stability (TS+6, TS3-6, TS-3), slurry-forming capacity, coal slurry stability, ash melting point (DT, ST, HT, FT), viscosity-temperature characteristics of ash, viscosity of ash residues, ash components (silicon dioxide, aluminum oxide, titanium dioxide, iron oxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, sulfur trioxide, phosphorus pentoxide), sulfur analysis (various types of sulfur: total sulfur, organic sulfur, inorganic sulfur), Gekkin index (Tar, CR, Water, gases, and losses), characteristics of cokes and slag, density (true density, apparent density, bulk density), slagging tendency (at 0.1 m/s, 0.2 m/s, 0.3 m/s), bonding index, free expansion coefficient, gel expansion coefficient; for power plants, the specific resistivity of coal should also be included. It’s complete. . . Note: Depending on the technical selection, some parameters may be omitted.