Chemical Engineering - Petroleum Refinery Engineering
Exercise :: Petroleum Refinery Engineering - Section 4
16.
Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about __________ of that of water (i.e. 1 gm/c.c).
A. one fourth B. one third C. half D. one eighth
Answer: Option C
Explanation:
17.
Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.
Answer: Option B
Explanation:
18.
Cn H2n is the general formula for
A. olefins B. naphthenes C. both (a) and (b) D. neither (a) nor (b)
Answer: Option C
Explanation:
19.
Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.
A. unsaturated hydrocarbon content B. calorific value C. quantity of propane D. quantity of butane
Answer: Option B
Explanation:
20.
Pick out the wrong statement.
A. Alkylation produces a larger iso-paraf-fin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin. B. Catalytic alkylation processes use HF, AlCl3 & H2 SO4 as Catalysts. C. All the alkylation processes use very high temperature (> 1000°C). D. Gasoline having an octane number of 90 can be produced by alkylation process.
Answer: Option C
Explanation:
