PETROLEUM REFINERY ENGINEERING QUIZ

Visbreaking

Produces fuel oil of lower viscosity

Produces gasoline only

Uses natural gas as feed

Is carried out at atmospheric pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the most widely used cracking process in oil refineries?

Fluidised bed catalytic cracking process

Houdry's fixed bed process

T.C.C. moving bed process

Dubbs process

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YOUR ANSWER : ?

Pressure & temperature maintained in catalytic cracking is about

50atm. & 750°C

10atm & 500°C

30atm & 200°C

2atm & 500°C

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YOUR ANSWER : ?

Crude oil is subjected to vacuum distillation in the last stage, because

High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose

High purity products can be obtained thereby

Lighter/low boiling products are prone to thermal decomposition

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.

All of these

Bauxite

Fuller's earth

Activated clay

TRUE ANSWER : ?
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Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'.

1

25

5

15

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Olefins are

Present in substantially good quantity in crude petroleum

Saturated hydrocarbons

None of these

Unsaturated cyclic compounds (hydrocarbons)

TRUE ANSWER : ?
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Petroleum coke is used mainly in the

Blast furnace for reduction of iron ore

Sugar refining

Manufacture of carbon electrode

Discoloration of yellow glycerine

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YOUR ANSWER : ?

Aniline point is a property of the

LPG

Naphtha

Diesel

Gasoline

TRUE ANSWER : ?
YOUR ANSWER : ?

Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic

Isomerisation

Cracking

Polymerisation

Reforming

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YOUR ANSWER : ?