Petroleum Refinery Engineering Gum formation in stored gasoline is mainly due to the Alkylation of unsaturates Higher aromatic content Oxidation & polymerisation of unsaturates Presence of sulphur Alkylation of unsaturates Higher aromatic content Oxidation & polymerisation of unsaturates Presence of sulphur ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solvent used in the deasphalting process is Propane Furfurol Phenol Hexane Propane Furfurol Phenol Hexane ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following additives improves the cetane number of diesel? Ethyl mercaptan Tetra ethyl lead Amyl nitrate Napthenic acid Ethyl mercaptan Tetra ethyl lead Amyl nitrate Napthenic acid ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering With increase in the molecular weight of aromatic present in kerosene, its smoking tendency Remains same Is unpredictable Decreases Increases Remains same Is unpredictable Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is 2 1 3 4 2 1 3 4 ANSWER DOWNLOAD EXAMIANS APP
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 Discoloration Thermal cracking Coking Gum formation Discoloration Thermal cracking ANSWER DOWNLOAD EXAMIANS APP
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