58108-mt----petroleum Refinery Engineering

NR

Code No: 58108/MT M.Tech. – I Semester Supplementary Examinations, September, 2008 PETROLEUM REFINERY ENGINEERING (Chemical Engineering) Time: 3hours

Max. Marks:60 Answer any FIVE questions All questions carry equal marks ---

1.a) b)

What is the future of petrochemicals in India? Why characterization of complex feed stocks is so important? Discuss PONA analysis in brief.

2.a)

Discuss the strategies to meet the future needs of petrochemical industry in brief. Discuss steam reforming and partial oxidation processes in brief.

b) 3.a) b)

Discuss free radical reactions in polymerization processes. Differentiate between LDPE and HDPE and discuss their uses.

4.

Discuss recent trends in the production of LDPE and HDPE. Compare them with conventional parameters.

5.a)

Why heavier feed stocks are not preferred to produce light olefins during thermal cracking of hydrocarbons. Discuss the effect of various parameters during the thermal cracking of hydrocarbons on the yields of H2, CH4 and C2H4.

b) 6.a) b)

How coke is formed during thermal cracking of hydrocarbons? Discuss in brief. Discuss coke formation and its implications during catalytic cracking of hydrocarbons.

7.

Discuss various ways to reduce / inhibit coke formation during thermal cracking of hydrocarbons.

8.a) b)

Discuss environmental aspects of petrochemical industry. Enlist newer materials of construction for petrochemical industry and their advantages. *****