The coal in Xinjiang is excellent
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This post was last edited by shanxg on 2011-4-29 09:56. Test results: Test items, units, design coal, verified coal 1, verified coal 2. Applicable standards: Total moisture, Mt%: 2.82, 6.5, 25.6; GB/T211-2007. Moisture on air-dried basis, Mad%: 9.29, 8.38, 12.86; GB/T212-2008. Ash content on received basis, Aar%: 11.24, 4.63, 3.67. Volatile matter on dry, ash-free basis, Vdaf%: 32.65, 34.43, 32.16. Carbon content on received basis, Car%: 52.44, 52.23, 55.07; DL/T568-1995. Hydrogen content on received basis, Har%: 2.21, 1.95, 2.81. Nitrogen content on received basis, Nar%: 0.48, 0.62, 0.4. Oxygen content on received basis, Oar%: 10.39, 13.73, 12. Total sulfur, St,ar%: 0.44, 0.34, 0.45; ASTM D4239-2008. High calorific value on received basis, Qgr,v,ar MJ/kg: 19.47, 18.46, 20.86; GB/T 213-2008. Low calorific value on received basis, Qnet,v,ar MJ/kg: 18.49, 17.63, 19.69. Harzing Index, HGI/120: 102, 118; GB/T2565-1998. Free silica in coal, SiO2(F)%: 0.78, 2.53, 3.73. Fluorine in coal, F ar µg/g: 38, 41, 45. Chlorine in coal, Cl ar%: 0.043, 0.03, 0.036. Melting characteristic temperature/deformation temperature of coal ash, DT×103℃: 1.39, 1.02, 1.16. Melting characteristic temperature/softening temperature of coal ash, ST×103℃: 1.40, 1.05, 1.16. Melting characteristic temperature/hemisphere temperature of coal ash, HT×103℃: 1.41, 1.09, 1.16. Melting characteristic temperature/flowing temperature of coal ash, FT×103℃: 1.48, 1.13, 1.17. Silica content in coal ash, SiO2%: 18.58, 18.12, 13.54. GB/T1574-2007, SD 323-1989, ASTM D5016-2008. Aluminum oxide content in coal ash, Al2O3%: 3.5, 8.3, 45.3. Iron oxide content in coal ash, Fe2O3%: 8.8, 18.44, 9.83. Calcium oxide content in coal ash, CaO%: 38.56, 37.17, 32.25. Magnesium oxide content in coal ash, MgO%: 14.5, 14.21, 18.82. Sodium oxide content in coal ash, Na2O%: 5.00, 4.28, 4.45. Potassium oxide content in coal ash, K2O%: 0.5, 0.4, 0.56. Titanium dioxide content in coal ash, TiO2%: 0.59, 0.41, 0.29. Sulfur trioxide content in coal ash, SO3%: 9.20, 18.41, 4.35. Manganese dioxide content in coal ash, MnO2%: 0.225, 0.17, 0.121. Guys, I’m in Xinjiang now – the coal here is really good.
Which mining area does that location in Xinjiang belong to? Not clear!
What damn coal? The moisture content is alarmingly high, while the fixed carbon is low. Look how depressed the OP is.
I wonder which region the coal comes from? Hami? Zhundong? The coal in Xinjiang is relatively young
I wonder which region the coal comes from? ???
Typical aged lignite ~:lol OP
It has a low sulfur content and belongs to the category of very low-sulfur coal. Typical lignite has a high volatile content and a high moisture content on a dry basis. The Haas grindability coefficient is very high, meaning this coal is easy to grind. It is somewhat disadvantageous for fixed-bed pressurized gasification, but it allows for good coal blending in factories; by screening, it is easy to send a portion of the ground coal to the boiler for combustion.
I fully agree with lignite. Why do you call this coal aged lignite?
It refers to the older lignite within brown coal, whose lumps are similar to those of bituminous coal~