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Petroleum Refinery Engineering

Petroleum Refinery Engineering
Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.

Naphthenes
Aromatics
Paraffins
Smoke point

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Petroleum Refinery Engineering
Performance number of a liquid fuel is related to its

Knocking tendency
Wax content
Sulphur content
Spontaneous ignition temperature

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Petroleum Refinery Engineering
Diesel index is defined as

(°API) x (100)/Aniline Point, °F
(°API) x (Aniline Point, °F)/100
(°API) x (100)/Aniline Point, °C
(°API) x (Aniline Point, °C)/100

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Petroleum Refinery Engineering
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about

3.5
1
2.5
0.1

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Petroleum Refinery Engineering
The most important property for a jet fuel is its

Viscosity
Calorific value
Freezing point
Flash point

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Petroleum Refinery Engineering
Presence of sulphur in gasoline

Helps during stabilisation
Decreases gum formation
Increases lead susceptibility
Leads to corrosion

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