Abstract:

The requirement of gasification with gas flow bed on coal quality was introduced, the influence of coal moisture, reactivity, size and ash on gasification was described. The study showed that water in coal was the main factor to determine coal slurry property, the sticking temperature curve of ash slag had more instructive significance than ash fusion point in the operation of gasifier, to select coal which had flat ash slag viscosity variation in the operating temperature area was beneficial to the safe and stable running of gasifier.