Steam Boilers, Engines, Nozzles and Turbines
Proximate analysis of fuel is determination of percentage of

Higher calorific value
Carbon, hydrogen, nitrogen, sulphur, moisture
Lower calorific value
Fixed carbon, ash, volatile matter, moisture

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Steam Boilers, Engines, Nozzles and Turbines
Coke is produced by

Heating wood in a limited supply of air at temperatures below 300°C
Enriching carbon in the coal
Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
Pulverizing coal in inert atmosphere

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