A. Aeration
B. Pyrolysis
C. Hydrogenation
D. Steam reforming
Related Mcqs:
- 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 ____________________?
A. Thermal cracking
B. Gum formation
C. Coking
D. Discoloration - Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil__________________?
A. Gives higher yield of petrol
B. Lower octane number of petrol
C. Higher sulphur content in the product
D. Higher gum forming material in petrol - The most suitable solvent for deasphalting vacuum residue is_____________________?
A. Propane
B. Methyl ethyl ketone
C. Doctor’s solution
D. Methanol amine - Highest quality bitumen is produced from the __________________ crude oil?
A. Paraffinic
B. Naphthenic
C. Intermediate
D. Mixed - The vacuum maintained in vacuum distillation unit for reduced crude is about _______________ mm Hg?
A. 1.2
B. 12
C. 120
D. 700 - Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about _______________ mm Hg (absolute)?
A. 5-10
B. 30-80
C. 150-250
D. 350-400 - Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about ________________ mm Hg absolute?
A. 1 to 5
B. 30 to 80
C. 250 to 350
D. 450 to 500 - The main use of heavy gas oil produced by the vacuum distillation unit is as a_____________________?
A. Blending component for kerosene
B. Blending component for petrol
C. Feedstock for fluid catalytic cracking unit
D. None of these - ______________ test is done to find out the softening point of bitumen?
A. Impact
B. Ball and ring
C. Flame
D. Viscosity - Flash point of atmospheric distillation residue is determined by ______________ apparatus?
A. Pensky-Martens (closed cup type)
B. Abel
C. Cleveland (open cup type)
D. None of these
