Boiler Fuel - an overview | ScienceDirect Topics
The experimented fuels in this experiment are coal oil and C-heavy oil, with A-heavy oil is used from cleansing process. The detail properties of C heavy oil and coal oil were shown in table 2. The density of the coal oil is 1.1937 g cm-3, while the C heavy oil is 0.9612 g cm-3. Sulphur content as the source of the SO x in the coal oil is lower
This process converts coal into either a low-sulfur boiler fuel or into refinery syncrude. Coal is slurried in a recycled oil and reacted with hydrogen at 3000 psi. The mixture is pretreated and pumped into the bottom of an ebullated bed catalytic reactor. The recirculated oil maintains the catalyst in a fluidized state.
Silicate liquid phases dominate the primary particle bonding or sintering mechanisms during boiler slagging. Clay minerals, classified as phyllosilicates in the silicate system, are the main inorganic matter in coal, with the aluminosilicates forming from them in coal ash. The high NBO/T (the ratio of nonbridge oxygens to tetrahedrally coordinated network formers) matter, rich with network
The corrosive species are different for coal and oil-fired boilers. Mixtures of vanadium pentoxide and sodium oxide or vanadium pentoxide and sodium sulfate are the principal offensive compounds in oil ash. For coal-fired boilers, sodium and potassium iron trisulfates are the liquid species blamed for high-temperature corrosion. DEW-POINT CORROSION
Sep 01, 2012 · For 500 °C and 550 °C, liquid oil yield was increased for nitrogen flow rates interval of 2550 cm 3 /min. Liquid oil yield was actually decreased for higher values of nitrogen flow rates (50400 cm 3 /min). • Liquid oil yield for final pyrolysis temperatures of 400 °C and 700 °C was much lower compared to 500 °C or 550 °C. This suggested that final pyrolysis temperature acted as prime
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