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TABLE - 1: SOME CHARACTERISTICS OF BONNY-LIGHT CRUDE The following data are available for the Nigerian Bonny-light crude. QUESTION-1 Table - 1 shows some characteristics of a typical crude oil. a) Classify the crude oil using the following properties. i) Specific gravity or API gravity ii) Sulphur Content iii) Characterisation factor (6 marks) b) Describe with the aid of a flow diagram how you would refine the crude oil to obtain the following fractions. i) Gasoline fraction ii) Kerosene fraction iii) Gas Oil fraction iv) Lubricating oil fractions of different grades (13 marks). c) Determine the percentage yield of each of the fractions in (b) above (6 marks). d) By the aid of a flow diagram (or block diagram) discuss how you would process the residue in (b) above to obtain more valuable products ( 10 marks). e) Suggest some methods of treating the petroleum fractions in (b) to improve their qualities ( 5 marks)