Petroleum Refinery Engineering Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm² is maintained during cracking mainly to Suppress coke formation Increase the yield of light distillates Reduce gum content in gasoline Enhance the octane number of gasoline Suppress coke formation Increase the yield of light distillates Reduce gum content in gasoline Enhance the octane number of gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering For gasoline, the flash point ( None of these Pensky-Marten's apparatus Abel apparatus Saybolt chromometer None of these Pensky-Marten's apparatus Abel apparatus Saybolt chromometer ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is used as a catalyst in fluidised bed catalytic cracking? All of these Silica-alumina Bentonite clays Silica-magnesia All of these Silica-alumina Bentonite clays Silica-magnesia ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Octane number (unleaded) of gasoline produced by isomerisation of butane may be about 90 70 45 55 90 70 45 55 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The conductivity of crude oil-water mixture depends on the PH value Temperature Water percentage All of these PH value Temperature Water percentage All of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The yield of straight run LPG from crude oil is about __________ weight percent. 44119 0.1-0.2 1-1.5 20-25 44119 0.1-0.2 1-1.5 20-25 ANSWER DOWNLOAD EXAMIANS APP
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