R05320806-fertilizer-technology

Set No. 1

Code No: R05320806

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) What are the different manufacturing processes of hydrogen? (b) Describe in detail any of them.

[4+12]

2. Write short notes on: (a) Removal of sulphur compounds (b) Removal of CO2 from the converted gas. (c) Removal of CO from the gas.

[5+5+6]

3. (a) What are the sources of fertilizers and discuss about them? (b) What are nitrogeneous fertilizers?

[10+6]

4. Describe the manufacturing process of nitric acid by BIRKLAND AND EYDE process. [16] 5. (a) Discuss indetail the manufacture of ammonium sulfate by using anhydrous ammonia and concentrated sulfuric acid with a neat flow diagram. [10] (b) How do you controll PH in the ammonium sulfate production and how much it should be manufactured to avoid inferior shape and size of the crystals? [6] 6. Draw a neat diagram for the production of ammonian phosphates by Dorr-Oliver grannular process and explain. [16] 7. What are the various sources of ingradients used in the formulations of mixed fertilizers and discuss the criteria in selection of ingradients. [16] 8. Discuss in brief (a) seed soaking treatments (b) Equipments used in handling of liquid fertilizers ⋆⋆⋆⋆⋆

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[16]

Set No. 2

Code No: R05320806

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 in detail production of hydrogen, with a neat flow diagram and write the applications of hydrogen. [16] 2. Explain the CO removal process in detail.

[16]

3. Give short notes on: (a) Synthesis gases (b) Manufacturing process of ammonia by synthesis process with neat flowsheet. [3+13] 4. Write short notes on : (a) Physico-Chemical principles in BIRKLAND AND EYDE process (b) Effect of temperacture (c) Effect of pressure (d) Effect of concentration (e) Effect of catalyst (f) Draw neat flow sheet of the process.

[2+2+2+2+2+6]

5. (a) What are the various methods available for the production of Ammonium sulfate. [4] (b) Discuss the Manufacture of Ammonium sulfate by using any one of the method. 6. Draw a neat process flow diagram and discuss manufacture of triple super phosphate by Kuhlman process. [16] 7. (a) Define fertilizers & mixed fertilizers (b) Classify fertilizers and discuss in brief their merits and demerits.

[8+8]

8. Compare the production economics of phosphorous between Wetprocess and Electiric furnace process. [16] ⋆⋆⋆⋆⋆

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Set No. 3

Code No: R05320806

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) Define composition of coal. (b) What is role of sulphur and ash is coal? (c) Explain in detail hydrogenation of coal with neat flow sheet.

[3+3+10]

2. Write short notes on: (a) Gas purification (b) Methanation (c) Shift conversions.

[4+4+8]

3. Explain the manufacturing process of ammonia by synthesis process.

[16]

4. Explain the manufacturing process of urea with a neat flow sheet.

[16]

5. (a) What are the various methods available for the production of Ammonium sulfate. [4] (b) Discuss the Manufacture of Ammonium sulfate by using any one of the method. 6. Draw a neat diagram for the production of ammonian phosphates by Dorr-Oliver grannular process and explain. [16] 7. Discuss indetail the extraction process by solution and recrystalization of potassium chloride. [16] 8. Discuss production economics and future plans of nitrogenous fertilizer Industry. [16] ⋆⋆⋆⋆⋆

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Set No. 4

Code No: R05320806

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. Write short notes on: (a) Steam reforming of hydrocarbons (b) Major engineering problems involved.

[12+4]

2. Write short notes on: (a) Removal of sulphur compounds (b) Removal of CO2 from the converted gas. (c) Removal of CO from the gas.

[5+5+6]

3. (a) Write the nature of chemical fertilizers and its physical properties. (b) Write short notes on nitrogen fertilizers.

[10+6]

4. (a) What are the applications of nitric acids? (b) Describe the production of nitric acid. (c) Write any major engineering problems.

[4+8+4]

5. (a) Discuss indetail the manufacture of ammonium sulfate by using anhydrous ammonia and concentrated sulfuric acid with a neat flow diagram. [10] (b) How do you controll PH in the ammonium sulfate production and how much it should be manufactured to avoid inferior shape and size of the crystals? [6] 6. Write brief note on the following (a) Hydroxylapatite (b) Chlorapatite (c) Fluorapatite.

[16]

7. Discuss indetail the plant layout and equipment for the construction of a mixed fertilizer industry. [16] 8. List out various problems affecting the growth of Indian Ferilizer Industry? What remedial measures will you suggest? [16] ⋆⋆⋆⋆⋆

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