Rr320805 Petro Chemical Engineering

Transcript

  Code No: RR320805 Set No. 1 III B.Tech II Semester Supplementary Examinations, Aug/Sep 2007PETRO CHEMICAL ENGINEERING(Chemical Engineering)Time: 3 hours Max Marks: 80Answer any FIVE QuestionsAll Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) What is natural gas?(b) How do you remove H  2 S  and CO 2 from Natural gas. [8+8]2. Explain briefly about:(a) azeotropic distillation and(b) Extractive distillation. [8+8]3. (a) What is thermal cracking?(b) What are the useful gases for petrochemical industry obtained from a FCC?[8+8]4. Write a short notes on:(a) Hydrogenation(b) Sulfur removal. [8+8]5. (a) What is meant by dehydrogenation?(b) How can you use pentane and hexane for petrochemicals production? [8+8]6. (a) Why propylene cannot he polymerized to poly propylene through free radicalmechanism.(b) What changes are required in catalyst formulation of composite catalyst forpolypropylene production? [8+8]7. How butyl alcohol is produced in industry? Describe the process with a flow sheet.[16]8. Explain with a neat flow chart production of p-xylenes from mixed xylenes. [16] ⋆⋆⋆⋆⋆ 1 of 1  Code No: RR320805 Set No. 2 III B.Tech II Semester Supplementary Examinations, Aug/Sep 2007PETRO CHEMICAL ENGINEERING(Chemical Engineering)Time: 3 hours Max Marks: 80Answer any FIVE QuestionsAll Questions carry equal marks ⋆ ⋆ ⋆ ⋆ ⋆ 1. (a) Give the composition of petroleum.(b) Describe the petroleum Industry in India. [8+8]2. Explain briefly about:(a) azeotropic distillation and(b) Extractive distillation. [8+8]3. (a) Compare naphtha with gas oil for thermal cracking operations.(b) What is the significance of recycling in a naphtha cracker? [8+8]4. Write a short notes on:(a) Hydrogenation(b) Sulfur removal. [8+8]5. (a) Butane is available in plenty in the refinery operations. How do you separateit?(b) Describe the process of dehydrogenation of butane. [8+8]6. (a) What are the uses of acrylic acid?(b) How is acrylic acid produced in the industry? [8+8]7. Explain the method of separating isoprene from cyclopentadiene and piperylene inthe pyrolysis of gasoline. [16]8. What are the various derivatives of benzene and toluene? [16] ⋆ ⋆ ⋆ ⋆ ⋆ 1 of 1  Code No: RR320805 Set No. 3 III B.Tech II Semester Supplementary Examinations, Aug/Sep 2007PETRO CHEMICAL ENGINEERING(Chemical Engineering)Time: 3 hours Max Marks: 80Answer any FIVE QuestionsAll Questions carry equal marks ⋆ ⋆ ⋆ ⋆ ⋆ 1. (a) List the important commerical products obtained from petroleum.(b) Give the approximate boiling ranges of these commerical products. [8+8]2. (a) Compare petrol and diesel oil with respect toi. knocking characteristicsii. Octane no. and cetane no. [4+4](b) What are the advantages and disadvantages of liquid fuels when compared tosolid fuels? [8]3. Write short notes on:(a) Types of reforming(b) LPG. [8+8]4. Explain briefly:(a) Polymerization(b) Alkylation. [8+8]5. (a) Give a typical cracking reaction of  C  16 paraffin.(b) How can the carbon formation during cracking be eliminated? [8+8]6. How is polypropylene produced in the industry? [16]7. Discuss in detail the production of butadiene form butane. [16]8. (a) What do you mean by BTX?(b) Explain the manufacturing process of BTX by Catalytic reforming methodwith a neat flow chart. [4+12] ⋆ ⋆ ⋆ ⋆ ⋆ 1 of 1  Code No: RR320805 Set No. 4 III B.Tech II Semester Supplementary Examinations, Aug/Sep 2007PETRO CHEMICAL ENGINEERING(Chemical Engineering)Time: 3 hours Max Marks: 80Answer any FIVE QuestionsAll Questions carry equal marks ⋆ ⋆ ⋆ ⋆ ⋆ 1. Discuss present, past and future status of petroleum industry in India and abroad.[16]2. What are Refinery gases ?explain? And what are their applications in petrochem-ical industry? [8+8]3. (a) Why hydrogenation of  C  2 , C  3 imsaturates is required in naphtha crackingoperation.(b) Discuss how kinetic severity factor, partial pressure in naphtha cracking influ-ence. [8+8]4. Discuss in detail the isomerization process and give its advantages and disadvan-tages. [16]5. (a) What is meant by dehydrogenation?(b) How can you use pentane and hexane for petrochemicals production? [8+8]6. Discuss how propylene oxide can be converted into glycerin. [16]7. Explain the uses of Isoprene and how it differs from butadiene. [16]8. (a) Describe the reactions occurring in a catalytic reformer for BTX production.(b) What is the catalyst industrially opted for reforming reactions for BTX pro-duction. [8+8] ⋆ ⋆ ⋆ ⋆ ⋆ 1 of 1