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 Discoloration Thermal cracking Gum formation Coking Discoloration Thermal cracking Gum formation Coking ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Doctor's solution used for sweetening of petroleum products is Lead sulphate Sodium thiosulphate Sodium sulphite Sodium plumbite Lead sulphate Sodium thiosulphate Sodium sulphite Sodium plumbite ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Phenols are added in gasoline to Act as an antioxidant Reduce its viscosity Increase its pour point Improve the octane number Act as an antioxidant Reduce its viscosity Increase its pour point Improve the octane number ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The octane number of aviation gasoline may be 97 79 87 >100 97 79 87 >100 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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