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 Higher nitration temperature All of these Lower solvent dilution ratio Elimination of solvent drying facility Higher nitration temperature All of these Lower solvent dilution ratio Elimination of solvent drying facility ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Electrical desalting of crude oil removes the __________ impurities. Neither A nor B Both A & B Oleophilic Oleophobic Neither A nor B Both A & B Oleophilic Oleophobic ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Visbreaking Produces fuel oil of lower viscosity Produces gasoline only Is carried out at atmospheric pressure Uses natural gas as feed Produces fuel oil of lower viscosity Produces gasoline only Is carried out at atmospheric pressure Uses natural gas as feed ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Smoke volatility index is equal to smoke point plus 10 mm. approximately 0.42 x(% distilled at 204°C) 5 mm 0.84 x (% distilled at 204°C) 10 mm. approximately 0.42 x(% distilled at 204°C) 5 mm 0.84 x (% distilled at 204°C) ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Antioxidants are added in petrol to Minimise the gum formation Impart colour to it, for easy identification Prevent the lead build up in engines Prevent icing of the carburettor Minimise the gum formation Impart colour to it, for easy identification Prevent the lead build up in engines Prevent icing of the carburettor ANSWER DOWNLOAD EXAMIANS APP
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