The document discusses the proximate analysis of coal, which determines the distribution of products when coal is heated under specified conditions. This separates the coal into four groups: moisture, volatile matter, ash, and fixed carbon. The document provides steps for conducting proximate analysis which involves weighing coal samples before and after heating to different temperatures and uses the results to calculate the percentages of each component. Safety precautions are also listed.
2. THE PROXIMATE ANALYSIS OF COAL means
of determining the distribution of products
obtained when the coal sample is heated under
specified conditions.
proximate analysis separates the products into four
groups:
(1) Moisture
(2) Volatile matter
(3) Fixed carbon
(4) Ash
6. • Weigh the crussible and lid
• Input 1 g sample into the crussible, then cover. weigh and heat
slowly until the temperature of 400-500C for 1 hour. Then
increase the temperature to 200-250 to 1 hour
• Remove the cup from the furnace. cooled in a desiccator and
weigh
Calculation Results :
% Ash = (A/B) x 100%
Note ;
A = Ash content
B = sample content
7. Using gloves to hold the coal
Using a mask to protect the nose of coal dust
Always use safety shoe to decrease bad risk to
our foot
And generally safety alike many industry