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GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER- VIII (New) EXAMINATION — WINTER 2019Subject Code: 2180509 Date: 25/11/2019
Subject Name: Fertilizer Technology
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
- Draw neat diagram where necessary.
Q.1 (a) Define fertilizer with its mechanism. Classify them. 03
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(b) Explain any one granulation process. 04
(c) Discuss about fertilizer production and consumption in India. 07
Q.2 (a) Give applications of ammonia and urea in chemical field. 03
(b) What is the role of essential elements in plant growth? Discuss about micro 04 and macro elements essential for plant growth.
(c) Write manufacturing process of ammonia by catalytic partial oxidation 07 steam hydrocarbon reforming with neat diagram. Also state physical & chemical properties.
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OR
(c) Write a short note on ammonia converters. 07
Q.3 (a) State physical and chemical properties of urea with its applications. 03
(b) Discuss about storage and transportation of Ammonia. 04
(c) Explain manufacturing process of Nitric acid by Intermediate pressure 07 ammonia oxidation process with neat diagram.
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OR
Q.3 (a) Draw the diagram of Toyo-Koatsu total recycle process. 03
(b) Explain shortly about ammonium sulphate from ammonium carbonate and 04 gypsum.
(c) Explain manufacturing process of urea by stamicarbon’s CO2 stripping 07 process.
Q.4 (a) Enlist physical and chemical properties of given compounds: 03
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- Potassium chloride
- Potassium sulphate
- Potassium nitrate.
(b) Draw a diagram of manufacturing of Ammonium nitrate by prilling 04 process.
(c) Describe manufacturing of potassium chloride from sylvinite process. 07
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OR
Q.4 (a) Which types of unit operations needed in manufacturing of various 03 fertilizers?
(b) Discuss major engineering problems in fertilizer industry. 04
(c) Discuss about preparation of Potassium nitrate and Potassium sulphate. 07
Q.5 (a) Define Biofertilizers. Give the types of them. 03
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(b) How the Biofertilizers are essentials for plant growth? 04
(c) Discuss about any one of the manufacturing process of Miscellaneous 07 fertilizer.
OR
Q.5 (a) (1).State chemical reaction for producing TSP. 03
(2).During storage of ammonium nitrate, what care will you take?
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(b) Differentiate NSP vs. TSP 04
(c) Discuss about Phosphate solubilizing biofertilizers. 07
R R R
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