
doi: 10.2172/10176842
The net liquid products from modern coal liquefaction processes are lower boiling and have much lower end points (mostly under 400{degree}C) than crude petroleum. Coal liquids have very low concentrations of heteroatoms, particularly S, and metals, and are free of resids and asphaltenes. High yields of low-S (0.01--0.03 wt %) naphtha, kerosene, and diesel fuel fractions can be obtained simply by atmospheric distillation, with a total yield of light fuel fractions ranging from 68 to 82 LV% (W260D exclusive). The coal naphtha has a low aromatics content (5--13 LV%), readily meeting projected year-2000 requirements. Its low Reid vapor pressure allows light components from other sources to be blended. The coal light distillate of in appropriate boiling range will be a good low-S blending stock for the light diesel fuel pool. The heavy distillate can be refined into a low-S No. 4 diesel fuel/fuel oil. This fraction, along with the >343{degree}C atmospheric bottoms, can be catalytically cracked or hydrocracked to make light liquid fuels. Thus, modern coal liquids should no longer be envisioned as thick liquids (or even solids) with high concentrations of aromatics and asphaltenes. Products obtained from advanced coal liquefaction technologies are more like light naphthene-base petroleum, but withmore » lower heteroatoms and metals contents, and they are free of resids. Coal liquids are likely to be co-refined in existing petroleum refineries; and hydroprocessing of various severities would be needed for different fractions to produce quality blending stocks for refinery fuel pools.« less
Naphtha, And Peat, Vapor Pressure, Viscosity, Density, Chemical Composition, Corrosive Effects, Coal Liquefaction, Distillates, Corrosion, 01 Coal, Properties And Composition, Physical Properties, Experimental Data 010600, Hydrogenation And Liquefaction, Pour Point, Combustion Heat, Lignite, 010405, Copper, Distillation, Coal Liquids
Naphtha, And Peat, Vapor Pressure, Viscosity, Density, Chemical Composition, Corrosive Effects, Coal Liquefaction, Distillates, Corrosion, 01 Coal, Properties And Composition, Physical Properties, Experimental Data 010600, Hydrogenation And Liquefaction, Pour Point, Combustion Heat, Lignite, 010405, Copper, Distillation, Coal Liquids
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