Petroleum Refinery Engineering - Chemical Engineering Questions and Answers

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Older crude petroleum

is light and better.

gives more distillates.

gives less tar.

all (a), (b) and (c).

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

Reforming

Pyrolysis

Alkylation

Hydrocracking

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Diesel index is defined as

(°API) x (Aniline Point, °F)/100

(°API) x (Aniline Point, °C)/100

(°API) x (100)/Aniline Point, °F

(°API) x (100)/Aniline Point, °C

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The condesate obtained on compression of wet natural gas is termed as

liquefied natural gasoline

natural gasoline

liquid natural gas

none of these

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Pick out the correct statement.

Paraffins have higher octane number than corresponding iso-paraffin.

Paraffins have lower smoke point than aromatics.

Suitability of kerosene as a fuel & as an illuminant may be determined by char value test.

Aviation fuel should have very high cloud point.

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Crude petroleum oil is a __________ fuel.

primary

fossil

both (a) & (b)

secondary

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Molecular weight of crude oil is in the range of

100-120

230-250

450-550

600-850

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Catalyst used in the isomerisation is

aluminium chloride

alumina

nickel

phosphoric acid

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Octane numbers of motor gasoline used in India and America are respectively

87 & 94

94 && 87

94 && 100

83 && 100