8/17/2019 Circulating Fluidized Gasifier

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8/17/2019 Circulating Fluidized Gasifier

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0%

   d  e  m  o   l   i   t   i  o  n

  w  o  o   d

   h  o   t  g  a  s

  c  o   l   d  g  a  s

   C   O

   H   2

   C   H   4

   C   2

   C   6

   t  a  r

energy contribution in fuel gas

Energy balance demolition wood gasification

82%

65%

26%

22%23%

14%10%

4%

20%

40%

60%

80%

100%

  e  n  e  r  g  y   [   %   ]

vol% dry gas

CO 14.2

H2 11.9

CO2 16.4

CH4 4.0

C2H4 + C2H6 1.5

BTX 0.4

NH3 0.2

N2 50.9

l ig ht ta rs [ mg /n m3 ] 7 00 0

h ea vy t ar s [ mg /n m3 ] 1 30 0

HHV [MJ/nm3 dry] 6.5

fuel bunkers

flare

rotary valves

gasifierriser

air and/or oxygen

 and/or steam

sec. air

N2 or air

10-20 m3n /h

1st cyclone

feeding screw50-100 kg/h

seal

2nd

 cyclone

ash

ø 20 cmh = 6 m

gas cleaning

section

gas engine

 60 kWe

electricity