Rr320807-fertilizer-technology

Set No. 1

Code No: RR320807

III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2008 FERTILIZER TECHNOLOGY (Chemical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) Explain the Nitrogen cycle. (b) Explain the atmospheric nitrogen fixation process in detail.

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2. Describe the gas purification methods.

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3. Explain with a neat flow sheet, the Kellogg ammonia process.

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4. Which is the catalyst used in the manufacture of Urea from Ammonia and CO2 ? Explain the process. [16] 5. Discuss in detail the major engineering problems encounted in production of Ammonium Chloride. [16] 6. Write short note on: (a) Economics of tripple super phosphate industries (b) Engineering problems in tripple super phosphate industries. 7. Discuss about history of potassium and its importance as fertilizer?

[16] [16]

8. Write a detailed note on nitrogenous-based fertilizer application on seasonal crop soils? [16] ⋆⋆⋆⋆⋆

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Set No. 2

Code No: RR320807

III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2008 FERTILIZER TECHNOLOGY (Chemical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Explain the types of carbonization of coal.

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2. Explain the partial oxidation of flex oils.

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3. Describe in detail the by-product ammonia recovery by direct method.

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4. At what temperature is the equilibrium favored in the oxidation of NO to N O2 , which is a slow reaction? Explain in detail. [16] 5. Write detailed note on plant location and process for Ammonium Sulphate. [16] 6. Explain in detail the strong acid process for the manufacturing of phosphoric acid with a neat flow diagram. [16] 7. Explain with a flow sheet the granulation process of the mixed fertilizer?

[16]

8. Write a detailed note on nitrogenous-based fertilizer application on seasonal crop soils? [16] ⋆⋆⋆⋆⋆

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Set No. 3

Code No: RR320807

III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2008 FERTILIZER TECHNOLOGY (Chemical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Explain the proximate analysis of coal and its importance.

[16]

2. What is shift conversion? and explain the high temperature shift conversion process. [16] 3. What is the nature of ammonia synthesis reaction? Explain in detail with flow sheet, if any. [16] 4. What is the effect of large excess of water during conversion of Ammonium Carbamate into urea? Discuss in detail. [16] 5. Write detailed note on plant location and process for manufacturing of Ammonium nitrate. [16] 6. Discuss in detail about the economic evaluation and process for manufacture of phosphoric acid. [16] 7. Describe the occurrence of potash minerals?

[16]

8. What are the technical features for enhancing the production of the fertilizer plants? [16] ⋆⋆⋆⋆⋆

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Set No. 4

Code No: RR320807

III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2008 FERTILIZER TECHNOLOGY (Chemical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Explain the proximate analysis of coal and its importance.

[16]

2. Explain various methanation methods used in fertilizer industry.

[16]

3. Describe in detail the by-product ammonia recovery by direct method.

[16]

4. Which is the catalyst used in the manufacture of Urea from Ammonia and CO2 ? Explain the process. [16] 5. Write detailed note on plant location and process for Ammonium Sulphate. [16] 6. Discuss in detail the economics of Nitro phosphate production industries.

[16]

7. Write about trace salts in fertilizer industry?

[16]

8. Write a detailed note on nitrogenous-based fertilizer application on seasonal crop soils? [16] ⋆⋆⋆⋆⋆

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