Biomass Heating Technology--types Of Biomass Combustion

Aug 15, 2019

As a kind of green renewable energy, biomass fuel is using widely in life and industry. How does it use for industry? It’s mainly for providing heat energy to boiler, dryer, kiln for furnace for production.

There are mainly 3 types of combustion of biomass fuel:

1. Direct fired-- pellet burner, biomass boiler, manual boiler etc.

2. Semi-gasification-- biomass gasification burner

3. Full-gasification- biomass gasifier

What’s the difference among them?

	Items	Pellet burner	Biomass gasification burner	Biomass gasifier
1	Equipment cost	Lower, 1/3 of full gasification	Lower, less than 1/2 of full gasification, about 60,000 yuan / ton( $8695/T)	High cost, the market price exceeds 150,000 yuan / ton ($21740/T)
2	Avaible fuel	Forming pellets	Pellets,briquettes,wood chips	Pellets,briquettes,wood chips
3	Steam cost	Higher,close to natural gas	Much lower	20% higher than biomass gasifier
4	Operator	1~2 people/shift for one machine	1~2 people/shift for one machine	More than 5 people/shift for one machine
5	Combustion system	Direct-fired	High temperature pyrolysis semi-gasification	Complete gasification
6	Tar	Tar can burn directly	Tar can burn directly	Tar needs to be recycled and needs to be disposed of in hazardous waste
7	Slag discharge way	Manual slag cleaning, intermittent operation	Optional automatic slag discharge,24 hours continuous operation	Automatic slag discharge, 24 hours continuous operation
8	Integrated thermal efficiency	90%, only the exhaust ash residue Fuel ash 4%, furnace heat loss of about 5%	93%, only the exhaust ash residue Fuel ash 4%, furnace heat loss of about 3%	No more than 80%, about 18% charcoal discharge The heat loss of furnace body is about 2%, and the cooling heat of gas through filtration is about 5%


9	exhaust emission	Higher,dust≧100mg NOX：High	Less， dust≦50mg NOX:less	Less,dust ≦30mg NOX:less

10	Installation space（No fuel storage）	About 15m³ Boiler room Installation	About 30m³ Boiler room Installation	50m³~100m³ Outside the boiler room, there should be enough space for installation

11	Installation and renovation period	Shorter，2~5days	Shorter，3~7days	Longer，20~40days
12	Maintenance cost	Low cost, simple and cheap accessories	Lower, simpler, cheaper accessories	High, more complex, high accessory price
13	Installation pictures