Steam Boilers, Engines, Nozzles and Turbines
Carbonization of coal is the process of

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

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Steam Boilers, Engines, Nozzles and Turbines
A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic controls are

Packaged boiler does not exist
Supplied mounted on a single base
Supplied by same manufacturer loose and assembled at site
Purchased from several parties and packed together at site

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