(i) Define Flash & Fire point. (ii) Give the expression for API gravity. Write expression for a blend. (iii) What is LPG? List grades of LPG. (iv) What is knocking? Define octane number.
[ marks]Answer the following:
[7 marks]What is sweetening? List criteria of doctoring (vi) Give the expression of UOP characterization factor. Write expression for a mixture of components. (vii) State the significance of Softening point.
[ marks]List tests for gasoline. Discuss ASTM distillation characteristics with a neat diagram.
[7 marks]With a neat sketch of Conradson carbon residue apparatus, explain the test method and significance
[7 marks]Write short note on gases from petroleum.
[7 marks]With a neat sketch of True Boiling Point apparatus, explain the test method and significance.
[7 marks]What is cracking? Discuss thermal cracking operations and properties of cracked materials.
[7 marks]Explain Merox sweetening in detail
[7 marks]Explain oxidation of Mercaptans to disulfides.
[7 marks]Discuss dehydration and desalting of crude.
[7 marks]Discuss major engineering problems in SBR manufacture
[7 marks]Discuss major engineering problems in ethylene oxide manufacture.
[7 marks]Discuss polyethylene manufacture by low pressure process.
[7 marks]Explain manufacture of methanol with a neat flowsheet.
[7 marks]Write short note on petrochemical feedstock
[7 marks]Write short note on “Petrochemical sector- present and future” ########################1
[7 marks]Explain manufacture of vinyl chloride monomer. List major engineering problems.
[7 marks]With a neat flow diagram discuss manufacture of acetic acid and the major engineering problems associated with it.
[7 marks]