Petroleum Refinery Engineering - Chemical Engineering Questions and Answers

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Naphthenic acid is represented by

C_nH_2n+2O₂

C_nH_2n-2O₂

C_nH_2n+2O₂ (n ≥ 6)

C_nH_2n+6O₂ (n ≤ 6)

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Name the endothermic reaction out of the following:

Catalytic cracking.

Hydrocracking.

Dehydrogeneration of naphthene to produce aromatic.

Catalytic polymerisation.

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Natural gasoline is produced

from oil wells

in oil refineries

by natural gas stripping

none of these

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Main constituent of natural gas is

CH₄

C₂H₂

C₂H₄

C₂H₆

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Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO₂ extraction (Edeleanu process), its smoke point may become __________ mm.

100

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Petroleum coke is commercially produced by the __________ process.

hydrocracking

visbreaking

fluid catalytic cracking

delayed coking

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Crude oil produced by Indian oil fields are predominantly __________ in nature.

paraffinic

naphthenic

asphaltic

mixed base

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In solutizer sweetening process, solutizer solution used is

methanol in Unisol process.

naphthenic acid in Mercapsol process.

both (a) and (b).

neither (a) nor (b).

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Which of the following contains maximum sulphur ?

Diesel

Petrol

Kerosene

Fuel oil