heating
cooling
solvent extraction
both(b)&(c)
✅ The correct answer is option D.
Engineering
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2432. Solvent used in Edeleanu process is
furfural
propane
liquid SO2
phenol
✅ The correct answer is option C.
2433. Octane number (unleaded) of reformed gasoline may be upto
60
70
80
90
✅ The correct answer is option D.
2434. Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.
smoke point
paraffins
aromatics
naphthenes
✅ The correct answer is option C.
2435. Which is the most ideal feed stock for ‘coking’ process used for the manufacture of petroleum coke ?
Naphtha
Vacuum residue
Light gas oil
Diesel
✅ The correct answer is option B.
2436. Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds).
5
25
50
100
✅ The correct answer is option B.
2437. A fuel oil consists of 4 fractions A, B, C and D. Their molar compositions and vapour pressures are given below : The vapour pressure of the fuel oil will be __________ mm Hg.
736
727.5
512
767.8
✅ The correct answer is option A.
2438. The most commonly used feed stock for the reforming reactor is
heavy fuel oil
residuum
straight run gasoline
casing head gasoline
✅ The correct answer is option C.
2439. Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is
propane.
diethylene glycol.
aqueous solution (10% water) of diethylene glycol.
methyl ethyl ketone (MEK).
✅ The correct answer is option C.
2440. Which of the following has the lowest viscosity (at a given temperature) of all?
Naphtha
Kerosene
Diesel
Lube oil
✅ The correct answer is option A.