Petroleum Refinery Engineering Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration Both A & B Less than 90% promotes polymerisation More than 98% promotes cracking Neither A nor B Both A & B Less than 90% promotes polymerisation More than 98% promotes cracking Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Operating temperature and pressure in catalytic reforming is about 50 - 75 kgf/cm² & 600 - 800°C 1-5 Kgf/cm² & 200°C 5-10 kgf/cm² & 150 - 250°C 15-45 Kgf/cm² & 450-550°C 50 - 75 kgf/cm² & 600 - 800°C 1-5 Kgf/cm² & 200°C 5-10 kgf/cm² & 150 - 250°C 15-45 Kgf/cm² & 450-550°C ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Petroleum coke is used mainly in the Blast furnace for reduction of iron ore Manufacture of carbon electrode Sugar refining Discoloration of yellow glycerine Blast furnace for reduction of iron ore Manufacture of carbon electrode Sugar refining Discoloration of yellow glycerine ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Reforming converts Naphthenes into aromatics Olefins into paraffins Naphthenes into olefins Naphthenes into paraffin Naphthenes into aromatics Olefins into paraffins Naphthenes into olefins Naphthenes into paraffin ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Name the endothermic reaction out of the following: Catalytic polymerisation Catalytic cracking Hydrocracking Dehydrogeneration of naphthene to produce aromatic Catalytic polymerisation Catalytic cracking Hydrocracking Dehydrogeneration of naphthene to produce aromatic 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 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 hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of aromatics decreases with increase in its molecular weight 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 hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics ANSWER DOWNLOAD EXAMIANS APP
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