Petroleum Refinery Engineering

231. The first crude oil refinery of India is located at

1. Naharkatiya
2. Digboi
3. Kochi
4. Madras

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232. The general formula of naphthenes is

1. C_nH_{2n+ 2}
2. C_nH_2nn-6 (where, n ≥ 6)
3. C_nH_n-4
4. Same as that for olefins i.e. C_nH_2n

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233. The main aim of cracking is to produce

1. Gasoline
2. Lube oil
3. Petrolatum
4. Coke

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234. The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to

1. Obviate catalyst poisoning
2. Maintain the reaction temperature
3. Sustain the reactor pressure
4. Hydrogenate the feed stock

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235. The main reaction in reforming is the

1. Dehydrogenation of naphthenes
2. Hydrogenation of naphthenes
3. Hydrocracking of paraffins
4. Saturation of olefins

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236. The main use of heavy gas oil produced by the vacuum distillation unit is as a

1. Blending component for kerosene
2. Blending component for petrol
3. Feedstock for fluid catalytic cracking unit
4. None of these

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237. The most commonly used feed stock for the reforming reactor is

1. Heavy fuel oil
2. Residuum
3. Straight run gasoline
4. Casing head gasoline

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238. The most important property for a jet fuel is its

1. Viscosity
2. Freezing point
3. Calorific value
4. Flash point

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239. The most suitable solvent for deasphalting vacuum residue is

1. Propane
2. Methyl ethyl ketone
3. Doctor's solution
4. Methanol amine

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240. The most widely used crude topping column in refineries is the _________ column.

1. Bubble-cap
2. Packed bed
3. Fluidised bed
4. Perforated plate

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