Carbones
Enviado por Jerry • 18 de Febrero de 2018 • 1.994 Palabras (8 Páginas) • 247 Visitas
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RESULTS
Table No 1. Determination of moisture content of the coal simple.
Wet coal
Crucible capless (g)
Crucible + sample (g)
(g) carbon
37,793
38.809
1,016
Coal without moisture
Crucible + sample without moisture (g)
(g) carbon
38,170
0.639
Humidity%
37.11
- % Moisture:
% Moisture = [(A-B) / A] * 100
Where:
A=g sample used
B= G sample treated.
[pic 3]
Table No 2. Determination of ash percentage of coal sample.
Ashless coal
Crucible capless (g)
Pot with lid (g)
(g) carbon
13,342
......
1,002
Coal ash
Crucible + sample (g)
Crucible + ash (g)
(g) Ash
14,344
13,442
0.0995
% Ash
9,948
- % Ash:
% Ash = [(A-B) / C] * 100
Where:
A= Capsule weight with ash residue
B= Weight empty capsule
C= Weight of coal sample
% Ash 9.95% ==[pic 4]
Table No 3. Determination of volatile material.
Melting pot
Pot with lid (g)
Crucible + sample (g)
M.V pot + free sample (g)
24,799
25,814
25,009
% Volatile matter
33,992
- Volatile matter
% Volatile matter =% humidity - % mass loss
Mass loss% = [(A - B / A] * 100
A = Weight sample used
B = Treated sample Weight
MELTING POT
[pic 5]
[pic 6]
- Fixed coal.
Calculating fixed carbon is performed with the following formula:
% Fixed Carbon = (100 - (% H +% C +% MV))
Where:
% H: Moisture.
% C: Ash percentage.
% MV: Percentage of volatile matter
According to the results obtained and collected in Table No. 1, Table No. 2 and No. 3, the table calculation was performed given fixed carbon as shown:
% Fixed Carbon = (100- (37.11% + 9.95% + 3,118%))
= (100- 81,052) = 18,948%
- Density
Table No 4. Data collection density.
V
M
S
MS
g Pycnometer (5ml)
10,366
1,031
15,122
13,660
Where,
V: empty pycnometer,
M: shows,
S: solvent (ethanol)
MS: sample solvent.
The bulk density is calculated using the following formulas:
D = mass / volume
Dapparent = (dS - dMS)
Where:
dS: EtOH solvent density
dMS: sample + solvent mixture density (EtOH).
According to data collected in Table No. 4 The calculation was made apparent density as follows:
dS (E) 15.122g- 10.366g = 0.951 g/mL
5 mL
dMS = 13.660g- 10,366g = 0.658 g/mL
5 mL
Dapparent = (dS - dMS)
= (0.951 g/mL – 0.658 g/mL) = 0,293 g/mL
DISCUSSION OF RESULTS.
[pic 7]
Figure 3. Classification of coal types to form the next analysis.
As the next analysis performed on the sample of coal, it can be concluded by the analysis performed to Figure 3 that
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