Draw a flow sheet diagram of manufacturing of producer gas and explain its working.

Draw a flow sheet diagram of manufacturing of producer gas and explain its working. 
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Producer gas, It is a mixture of flammable gases (principally carbon monoxide and hydrogen) and nonflammable gases (mainly nitrogen and carbon dioxide) made by the partial combustion of carbonaceous substances, usually coal, in an atmosphere of air and steam. Steam and air mixture injected in the bottom of water cooled jacket steel furnace equipped with rotating grate to remove fusible ash as shown in figure. Solid fuel is added from hopper valve on the top. Producer gas is cooled by passing through waste heat boiler.

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