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