Petroleum Refinery Engineering

________________ treatment is done for appreciable improvement in viscosity index of lubricating oil?

Byadmin March 1, 2019August 23, 2021

________________ treatment is done for appreciable improvement in viscosity index of lubricating oil?

A. Acid
B. Solvent extraction
C. Alkali
D. Clay

Petroleum Refinery Engineering

Reforming converts_________________?

Reforming converts_________________?

A. Olefins into paraffins
B. Naphthenes into aromatics
C. Naphthenes into olefins
D. Naphthenes into paraffin

Read More Reforming converts_________________?
Petroleum Refinery Engineering

Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency ?

Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency ?

A. Paraffins
B. Naphthenes
C. Aromatics
D. Iso-paraffins

Read More Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency ?
Petroleum Refinery Engineering

Octane number of n-heptane is assumed to be_________________?

Octane number of n-heptane is assumed to be_________________?

A. 100
B. 0
C. 70
D. ∞

Read More Octane number of n-heptane is assumed to be_________________?
Petroleum Refinery Engineering

Which of the following has the highest gum forming tendency in gosoline ?

Which of the following has the highest gum forming tendency in gosoline ?

A. Paraffins
B. Diolefins
C. Aromatics
D. Naphthenes

Read More Which of the following has the highest gum forming tendency in gosoline ?
Petroleum Refinery Engineering

Which of the following is a non-regenerative fixed bed catalytic reforming process ?

Which of the following is a non-regenerative fixed bed catalytic reforming process ?

A. Hydroforming
B. Thermofor catalytic reforming
C. Platforming
D. Hyperforming

Read More Which of the following is a non-regenerative fixed bed catalytic reforming process ?
Petroleum Refinery Engineering

Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to__________________?

Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to__________________?

A. Increase the yield of light distillates
B. Suppress coke formation
C. Enhance the octane number of gasoline
D. Reduce gum content in gasoline

Read More Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to__________________?

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