Coal

1. Department Of Chemical Engineering
Presentation
on
• Presented By:-
1)Miss. Bhanuse Pratiksha Shivaji
2)Mr. Bande Dnyaneshwar Ramakant
3)Mr. Patil Ravikant Ramesh
Under the guidance of :-S.R.Yadav
PROJECT WORKING

2. CLEANING OF COAL BY
USING AIR CYCLONE
• .

3. OBJECTIVE
 To study the coal characteristics, uses and its application.
 To study the procedure of coal preparation.
 To study the methods of removing impurities from coal.
Main objective of project:
 To reduce ash contain in coal by using air cyclone.

4. History
 In 13th century in china was found that coal or black store was used
for heating and was available in huge quantity.
 Coal was commercially transported in Britain & Rome in second
century.
 Coal was used for steel production from iron ore by Roman people.
 The traditional buyers of Indian coal - Nepal, Bangladesh and Bhutan.
 India export of coal - During 2002-03 it was 12, 000tunes.
During 2003-2004 it was 35,000 tones.

5. INTRODUCTION
Coal:
 Black sedimentary rock.
 Combustible.
 Fossil fuel.
Coal content following elements
• Carbon
• Hydrogen
• Sulphur
• Oxygen
• Nitrogen

6. 1) Anthracite coal – carbon content 85%
2) Bituminous coal - carbon content 50-80%
3) Lignite(Brown coal) - carbon content 35-50%
4) Peat - carbon content - carbon content 35%
Classification of coal:

7. 1) Thermal electric power,
2) Steam power,
3) Metallurgical coke,
4) Domestic fuel, and,
5) Chemical industry.
•Uses of Coal:

8. Impurities Present in Coal:
• Nitrogen and sulphur- chemically reduced during
coalification.
• most sulphur is present as the mineral pyrite (FeS2), which
may account for up to a few per cent of the coal and Ash
[SiO2, Al2O3 etc.].

9. Procedure to coal preparation:
•Wash ability
•Crushing
•Screening
•Gravity Separation

10. COAL SEPERATION
METHODS
•1) Froth floatation for fine particles
•2) Bath (Dense medium process)
•3) Using the cyclone

11. Using the cyclone:
•Dense medium separator
•Water density separator
•Air cyclone used

12. MATERIALAND METHOD OF
PROJECT
•Aim
•Objective
•Apparatus & equipment to use

14. • Procedure–
• different parameters are
 Change of flow rate
Change of pressure
Change of particle size
Change of surrounding temperature

15. Sr. no. Flow rate Wt. of fine
particles at
top (gm)
Wt. of Ash
particles at
bottom (gm)
% of fine
particles
% of Ash
particles
1.
2.
3.
Sr. no. Pressure Wt. of fine
particles at
top (gm)
Wt. of Ash
particles at
bottom (gm)
% of fine
particles
% of Ash
particles
1.
2.
3.
For change of flow rate:
1)For change of pressure:

16. 1)For change of particle size:
Sr. no. Particle
size
Wt. of fine
particles at
top (gm)
Wt. of Ash
particles at
bottom (gm)
% of fine
particles
% of Ash
1.
2.
3.
2)For change of Surrounding temperature
Sr.
no.
Temperature Wt. of fine
particles at
top (gm)
Wt. of Ash
particles at
bottom (gm)
% of fine
particles
% of Ash
particles
1.
2.

17. Graphs
• % coal vs. F/R for 80 micron
• % coal vs. F/R for 150 micron
• % coal vs. F/R for 212 micron
• % coal vs. Pressure for 80 micron
• % coal vs. Pressure for 150 micron
• % coal vs. Pressure for 212 micron

18. Conclusion:
• Conclusion may be drawn from above curve for maximum %
coal at specific flow rate and pressure and particle size.

19. Place of Work and Facilities Available:
• laboratories of Chemical Engg. Department of P.V.P.I.T.,
Budhgaon, Sangli.
• Pawar fabrication work madhavnagar.

20. Approximate Expenditure: Rs. 45,000/-

21. References:
• 1] A.K.Asmoah, Mineral engineering, volume 10, issue 3, March 1997, 337-339
• 2] F.Concha, A.Barrientos, J. Montero, R. Sampaio; Air core and roping in hydro cyclones;
International journal of mineral processing; volume 44-45, March, 1996, 743-749.
• 3] Adam Nadudyaniri, Monika J Fabianska, The impact of Water washing, biodegradation and
self-heating process on coal waste dumps in the Rybnik industrial region Fuel, 15 Oct. 2016,
527-529.
• 4] Mr. Mamun Mollah, M. Marshall, R. Sakhurovs; Attempts to produce blast furnace coke
from Victorian brown coal and study on Hydrothermally dewatered and acid washed coal as a
blast furnace coke precursor; Fuel, volume 180, 15 September 2016, Pages 597–605.
• An empirical model of hydro cyclones incorporating angle of cyclone inclination

22. .