[Stoves] How to make smokeless coal?

Darpan Das darpandasiitb at gmail.com
Sat May 20 13:33:32 CDT 2017


Dear All

Several studies report of the use of smokeless coal and have identified it
as a “cleaner” fuel. It can be an immediate solution in regions where
people use coal for cooking or heating purpose.

I was trying to understand the science behind manufacturing smokeless fuel
(specifically coal).

Some questions regarding it are as follows


1) Is carbonisation of coal the major step to make it a smokeless fuel


2) Is pyrolysis/carbonisation/ devolatalisation the same thing?


3) Are volatiles the main reason for emissions from coal cook stoves?


4) How can i remove the volatiles?


5) If I remove them then all the emissions will reduce?


6) How do I decide at what temperature should I carbonise?


7) Why is low temperature carbonisation of coal meant for domestic use and
high temperature for metallurgical use?


8) Is the size of the coal not important factor to be taken into
consideration when carbonising the coal?


9) Why is coke for domestic purpose also called semi-coke?


10) Coke obtained from Low temperature Carbonisation same as Semi Coke?


11) What are the specification for quality assurance of the domestic coke
products? Are there any standards?


Regards

Darpan
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