PETROLEUM REFINERY ENGINEERING QUIZ

Pressure & temperature maintained in catalytic cracking is about

30atm & 200°C

10atm & 500°C

50atm. & 750°C

2atm & 500°C

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Older crude petroleum

Gives more distillates

Gives less tar

Is light and better

All of these

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Catalyst used in isomerisation process is

HF

H₃PO₄

H₂SO₄

AlCl3

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Mercaptans is represented as (where R and R' are alkyl groups)

R-COOH

R-S-R'

R-S-R

R-S-H

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H/C ratio (by weight) for the same number of carbon atoms is the highest in case of

Olefins

Paraffins

Aromatics

Naphthenes

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Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency?

Iso-paraffins

Naphthenes

Paraffins

Aromatics

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Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene?

Hydrocracking

Alkylation

Pyrolysis

Reforming

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__________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation.

Potassium

Calcium

Magnesium

Sodium

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The first crude oil refinery of India is located at

Naharkatiya

Kochin

Madras

Digboi

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Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is

3

1

4

2

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