F SC 432 Quiz 1 Key – Flashcards

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question
T/F?
crude oil contains aromatics
answer
True
question
T/F?
crude oil contains heteroatoms like S, N, and O
answer
True
question
T/F?
crude oil contains alkenes
answer
False
question
T/F?
crude oil contains metals such as Ni and V
answer
True
question
T/F?
crude oil contains naphthenes
answer
True
question
Which inorganic gases are typically found in crude oils?
answer
CO2 and H2S
question
T/F?
Iso-alkanes have lower boiling points than n-alkanes with the same carbon number
answer
True
question
T/F?
Organic sulfur compounds tend to concentrate in the lower boling fractions of crude oil.
answer
False
question
T/F?
Vapor pressure of hydrocarbons decreases with the increasing carbon number
answer
True
question
T/F?
Vapor pressure of hydrocarbons decreases with the increasing carbon number
answer
True
question
T/F?
Naphthenes have higher densities than n-alkanes with the same carbon number
answer
True
question
crude oil is generally classified according to ___
answer
hydrocarbon composition
question
Two crude oils A (Paraffins: 20%, Aromatics: 10%) and B (Naphthenes: 14% , Aromatics: 40%) are blended in A/B = 2/5 to make C. What is the naphthene content of C?
answer
30.0%
question
Characterization factors are calculated using ___
answer
physical properties of crude oil
question
What is your estimate (+/- 5) of the octane number of n-octane?
answer
-10
question
The principal reason of adding MTBE to gasoline was to ___
answer
decrease CO emissions in the exhaust
question
Two strategies for converting heavy ends of crude oil to distillate products are ___ and ___
answer
carbon rejection
hydrogen addition
question
degree of separation in a distillation process decreases in what order? (ASTM, EFV, TBP)?
answer
TBP (best sep.)
ASTM
EFV (worst sep.)
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