Petroleum Refinery Engineering 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 Coking Gum formation Thermal cracking Discoloration Coking Gum formation Thermal cracking Discoloration ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Reforming converts Naphthenes into olefins Naphthenes into aromatics Olefins into paraffins Naphthenes into paraffin Naphthenes into olefins Naphthenes into aromatics Olefins into paraffins Naphthenes into paraffin ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Molecular weight of petrol may be about 40-60 100-130 350-400 250-300 40-60 100-130 350-400 250-300 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the highest gum forming tendency in gosoline? Paraffins Naphthenes Aromatics Diolefins Paraffins Naphthenes Aromatics Diolefins ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic Reforming Polymerisation Cracking Isomerisation Reforming Polymerisation Cracking Isomerisation ANSWER DOWNLOAD EXAMIANS APP
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