Petroleum Refinery Engineering
Sulphur content in lighter and heavier petroleum products is generally determined respectively by

Bomb method and lamp method
Bomb method and quartz tube method
Quartz tube method and lamp method
Lamp method and bomb method

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Petroleum Refinery Engineering
Alkylation

Converts olefin into paraffin
Causes olefins to combine with each other
Converts iso-paraffin into olefin
Causes olefins to combine with iso-paraffins

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Petroleum Refinery Engineering
Asphalts are

Desirable in catalytic cracking feedstock, because they produce coke
. Low molecular weight & low boiling point compounds present in petroleum
Readily oxidisable and form carbonaceous sludge
All of these

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