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 Gum formation Coking Thermal cracking Discoloration Gum formation Coking Thermal cracking Discoloration ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Doctor's solution used for sweetening of petroleum products is Sodium plumbite Sodium sulphite Sodium thiosulphate Lead sulphate Sodium plumbite Sodium sulphite Sodium thiosulphate Lead sulphate ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Phenols are added in gasoline to Improve the octane number Reduce its viscosity Act as an antioxidant Increase its pour point Improve the octane number Reduce its viscosity Act as an antioxidant Increase its pour point ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The octane number of aviation gasoline may be 79 >100 97 87 79 >100 97 87 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering __________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation. Calcium Sodium Potassium Magnesium Calcium Sodium Potassium Magnesium ANSWER DOWNLOAD EXAMIANS APP
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