Petroleum Refinery Engineering Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is Aqueous solution (10% water) of diethylene glycol Diethylene glycol Methyl ethyl ketone (MEK) Propane Aqueous solution (10% water) of diethylene glycol Diethylene glycol Methyl ethyl ketone (MEK) Propane ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about __________ mm Hg absolute. 450 to 500 250 to 350 30 to 80 1 to 5 450 to 500 250 to 350 30 to 80 1 to 5 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Molecular weight of crude petroleum may be around 250 5000 50 1500 250 5000 50 1500 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Waxy crudes are treated with chemical additives mainly to Depress its pour point Precipitate wax Remove wax Dissolve wax Depress its pour point Precipitate wax Remove wax Dissolve wax ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater. Steam coil None of these Pipestill Electric immersion Steam coil None of these Pipestill Electric immersion ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Mercaptans are All of these Low boiling sulphur compounds Undesirable in petrol, as they reduce its octane number Added in LPG cylinders to detect gas leakage by its smell All of these Low boiling sulphur compounds Undesirable in petrol, as they reduce its octane number Added in LPG cylinders to detect gas leakage by its smell ANSWER DOWNLOAD EXAMIANS APP
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