Ptro

Solvent used for dewaxing of petroleum products are

• Furfural

• Methyl ethyl ketone (MEK)

• Propane

• Both Methyl ethyl ketone (MEK) & Propane

In catalytic cracking, the

• Gasoline obtained has a very low octane number

• Pressure & temperature is very high

• Gasoline obtained has very high aromatic content

• Gasoline obtained has very high amount of gum forming compounds

Pressure & temperature maintained in catalytic cracking is about

• 2 atm & 500°C

• 10 atm & 500°C

• 30 atm & 200°C

• 50 atm & 750°C

Flash point of a liquid petroleum fuel gives an idea about its

• Volatility

• Explosion hazards characteristics

• Nature of boiling point diagram

• All of these

Catalyst used in catalytic polymerisation which produces polymer gasoline is

• H₂SO₄

• H₃PO₄

• Both H₂SO₄ and H₃PO₄

• AlCl₃

Liquefied Petroleum Gas (LPG) is mainly a mixture of

• Propane & butane

• Methane & ethane

• High boiling olefins

• High boiling naphthenes

Flash point of an oil is determined by the

• Pensky Martens apparatus

• Ramsbottom apparatus

• Saybolt viscometer

• Conradson apparatus

The best method of determining sulphur in crude oil is by the _____ method

• Kjeldahl

• Dumas

• Bomb calorimeter

• Junkers calorimeter

Which of the following reactions is undesirable in the production of catalytically reformed gasoline?

• Dehydrogenation of Naphthene

• Dehydrogenation of lower paraffins

• Dehydrocyclization of higher paraffins

• Isomerisation of paraffins

Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil

• Gives higher yield of petrol

• Lower octane number of petrol

• Higher sulphur content in the product

• Higher gum forming material in petrol