Petroleum Refinery Engineering Crude topping column operates at __________ pressure. Vacuum 3 atm 10 atm Atmospheric Vacuum 3 atm 10 atm Atmospheric ANSWER DOWNLOAD EXAMIANS APP
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 Increase the yield of light distillates Enhance the octane number of gasoline Suppress coke formation Reduce gum content in gasoline Increase the yield of light distillates Enhance the octane number of gasoline Suppress coke formation Reduce gum content in gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The order of preference for feedstock to a catalytic reformer is Virgin naphtha - catalytic naphtha - coking naphtha Coking naphtha - virgin naphtha - catalytic naphtha Catalytic naphtha - coking naphtha - virgin naphtha Virgin naphtha - coking naphtha - catalytic naphtha Virgin naphtha - catalytic naphtha - coking naphtha Coking naphtha - virgin naphtha - catalytic naphtha Catalytic naphtha - coking naphtha - virgin naphtha Virgin naphtha - coking naphtha - catalytic naphtha ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction Heavy distillates Residues Light ends Intermediate distillates Heavy distillates Residues Light ends Intermediate distillates ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg. 2000-2500 1000-1500 250-350 600-750 2000-2500 1000-1500 250-350 600-750 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Research octane number refers to the Unleaded motor fuels Low octane number motor fuels High octane number aviation fuels High octane number motor fuels Unleaded motor fuels Low octane number motor fuels High octane number aviation fuels High octane number motor fuels ANSWER DOWNLOAD EXAMIANS APP
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