Petroleum Refinery Engineering Questions

• Which of the followingis desirable in petrol (gasoline) but undesirable in kerosene?
• Which parameter is used for the grading of paraffin waxes?
• Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of
• Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is
• Which of the following gasolines (unleaded) has the least octane number?
• Asphalts are
• Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
• Products drawn from the top to bottom of the crude oil distillation column has progressively increasing
• Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.
• Which of the following is the most important property for a jet fuel?
• The most important property for a jet fuel is its
• Which of the following reactions is undesirable in the production of catalytically reformed gasoline?
• The main reaction in reforming is the
• Thermofer catalytic cracking process is a __________ process.
• Which of the following has the minimum °API gravity of all?
• Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.
• Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds).
• Which of the following is a non-regenerative fixed bed catalytic reforming process?
• A fuel oil consists of 4 fractions A, B, C and D. Their molar compositions and vapour pressures are given below : The vapour pressure of the fuel oil will be __________ mm Hg.
• Which of the following is not an important property of fuel oil/furnace oil?