Contents of coal quality evaluation for fluidized bed gasification

This post was last edited by shuker666 on 2019-8-13 17:12. Basic analysis: 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, lead); ash melting point (DT, ST, HT, FT); 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); density (true density, apparent density, bulk density); characteristics of cinders; slugging tendency (at 0.1 m/s, 0.2 m/s, 0.3 m/s)； Fixed bed: Carbon dioxide reactivity (800–1100°C, 50°C increments), crush strength, thermal stability (TS+6, TS3-6, TS-3), Grogan index (Tar, CR, Water, gases, and losses), binder index, free expansion coefficient, gum expansion coefficient ； Wet feeding: slurry-forming property, coal slurry stability, viscosity-temperature characteristics of ash, viscosity of ash residues, grindability index ； Dry feeding: viscosity-temperature properties of ash, viscosity of ash residues, grindability index ； Power plant: Specific resistance of coal to be added. Individual choices may vary depending on the technical selection, but it should be comprehensive. . .