Petroleum Refinery Engineering Phenols are added in gasoline to Reduce its viscosity Act as an antioxidant Increase its pour point Improve the octane number Reduce its viscosity Act as an antioxidant Increase its pour point Improve the octane number ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Mercaptans is represented as (where R and R' are alkyl groups) R-S-R R-COOH R-S-H R-S-R' R-S-R R-COOH R-S-H R-S-R' ANSWER DOWNLOAD EXAMIANS APP
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 Diesel index is defined as (°API) x (Aniline Point, °C)/100 (°API) x (Aniline Point, °F)/100 (°API) x (100)/Aniline Point, °C (°API) x (100)/Aniline Point, °F (°API) x (Aniline Point, °C)/100 (°API) x (Aniline Point, °F)/100 (°API) x (100)/Aniline Point, °C (°API) x (100)/Aniline Point, °F ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the Lower solvent dilution ratio Higher nitration temperature Elimination of solvent drying facility All of these Lower solvent dilution ratio Higher nitration temperature Elimination of solvent drying facility All of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke? Naphtha Light gas oil Vacuum residue Diesel Naphtha Light gas oil Vacuum residue Diesel ANSWER DOWNLOAD EXAMIANS APP
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