Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Greater depth of cracking gives lower octane number gasoline Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Increased residence time results in the decreased severity of cracking Greater depth of cracking gives lower octane number gasoline Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Increased residence time results in the decreased severity of cracking ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Catalyst used in alkylation process is Silica gel Alumina Nickel Sulphuric acid Silica gel Alumina Nickel Sulphuric acid 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. 600-750 1000-1500 250-350 2000-2500 600-750 1000-1500 250-350 2000-2500 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Petroleum Does not contain asphalt Constitutes mainly of olefins Is optically active Does not contain aromatics Does not contain asphalt Constitutes mainly of olefins Is optically active Does not contain aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene. Paraffins Aromatics Smoke point Naphthenes Paraffins Aromatics Smoke point Naphthenes ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with Ethyl alcohol Ethane Methane Methyl alcohol Ethyl alcohol Ethane Methane Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
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