Crude petroleum distillation is carried out at pressure Petroleum Refining Engineering Mcqs February 26, 2019 BILAL KHATTAK0 A.slightly below atmospheric pressure B.slightly above atmospheric pressure C.above 5 atm D.above 15 atm Related Mcqs: In the atmospheric distillation of crude petroleum Which of the following impurities in the crude petroleum is the most prolific producer of HCI during distillation? The frequent fluctuation in crude distillation tower top pressure can be caused due to Gage pressure is given by The blow off pressure of a safety valve is Water is fed to the boiler at Select the statement which is correct When the water flows over a rectangular suppressed weir the pressure beneath the nappe is Crude petroleum consists of Which of the following impurities in the crude petroleum is an oleophobic?