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PETROLEUM REFINERY ENGINEERING

Petroleum Refinery Engineering
Aromatics are desired constituents of

Diesel
Petrol
Kerosene
Lubricating oil

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Petroleum Refinery Engineering
Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil

Lower octane number of petrol
Higher sulphur content in the product
Gives higher yield of petrol
Higher gum forming material in petrol

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Petroleum Refinery Engineering
The main use of heavy gas oil produced by the vacuum distillation unit is as a

Blending component for petrol
Blending component for kerosene
None of these
Feedstock for fluid catalytic cracking unit

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Petroleum Refinery Engineering
__________ determination is not a very significant and important test for gasoline.

Reid vapor pressure
Viscosity
Gum & sulphur content
Octane number

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Petroleum Refinery Engineering
Catalyst used in the catalytic cracking is

Silica-alumina
Vanadium pentoxide
Silica gel
Nickel

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