Petroleum Refinery Engineering Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about __________ mm Hg absolute. 250 to 350 450 to 500 30 to 80 1 to 5 250 to 350 450 to 500 30 to 80 1 to 5 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Visbreaking Is carried out at atmospheric pressure Produces gasoline only Uses natural gas as feed Produces fuel oil of lower viscosity Is carried out at atmospheric pressure Produces gasoline only Uses natural gas as feed Produces fuel oil of lower viscosity ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Deoiling is the process of removal of oil from wax. It is done by the __________ process. Solvent extraction Sweating Resettling All of these Solvent extraction Sweating Resettling All of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms. 15-20 1.5 to 4.5 7.5 to 12.5 0.1 to 0.5 15-20 1.5 to 4.5 7.5 to 12.5 0.1 to 0.5 ANSWER DOWNLOAD EXAMIANS APP
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 Sour crude means the __________ bearing crude. Asphalt Nitrogen compounds Wax Sulphur compounds Asphalt Nitrogen compounds Wax Sulphur compounds ANSWER DOWNLOAD EXAMIANS APP
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