Fuels and Combustion Increase in ash content of blast furnace coke Decreases its hardness and abrasion resistance Increases its consumption in the furnace Reduces its consumption in the furnace Does not affect its consumption in the furnace Decreases its hardness and abrasion resistance Increases its consumption in the furnace Reduces its consumption in the furnace Does not affect its consumption in the furnace ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas containing least amount of tar is produced by the High pressure gasification of coal (e.g. in Lurgi gasifier) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of coal Partial combustion of large size (< 50 mm) coke High pressure gasification of coal (e.g. in Lurgi gasifier) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of coal Partial combustion of large size (< 50 mm) coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of coal on grate, clinker formation is increased by the Low fusion point of ash (< 1100° C) All of these Use of preheated primary air Use of thick fire bed Low fusion point of ash (< 1100° C) All of these Use of preheated primary air Use of thick fire bed ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas constitutes mainly of H₂ & CH₄ H₂ & CO₂ H₂ & CO CH₄ & CO H₂ & CH₄ H₂ & CO₂ H₂ & CO CH₄ & CO ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is a better fuel than blast furnace gas, because of its higher Adiabatic flame temperature Heat release rate (thus requiring smaller combustion chamber) All of these Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Adiabatic flame temperature Heat release rate (thus requiring smaller combustion chamber) All of these Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main constituent of the gas produced from a gobar gas plant is CO CH₄ H₂ CO₂ CO CH₄ H₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
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