Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of ____________________?

Related Mcqs:

Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?

A. Dehydrogenation of Naphthene B. Dehydrogenation of lower paraffins C. Dehydrocyclization of higher paraffins D. Isomerisation of paraffins...

Gum formation in stored gasoline is mainly due to the ____________________?

A. Alkylation of unsaturated B. Presence of sulphur C. Oxidation & polymerisation of unsaturated D. Higher aromatic content...

A multigrade lubricating oil means an oil having high __________________?

A. Viscosity index B. Viscosity C. Aniline point D. Flash point...

Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about _____________ kms?

A. 0.1 to 0.5 B. 1.5 to 4.5 C. 7.5 to 12.5 D. 15-20...

______________ converts n-paraffins to i-paraffins ?

A. Alkylation B. Polymerisation C. Isomerisation D. None of these...