Presentation 4: SME Renewables by Mr. Ho Do Remy

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What is Biomass Gasification ?
 Conversion of organic materials into
combustible gas mixture called SYN Gas or
Producer Gas.
 Involves partial combustion of biomass
 Four distinct processes occur in the Gasifier as
illustrated below:
 * Organic materials are living organisms
from plants and animals.
The Gasification Process
1. Drying
Removal of Water with Heat
2. Pyrolysis
Decomposition with heat
3. Combustion
Process of Burning/oxidation
4. Reduction
Oxygen lost and Hydrogen added
Biomass From Agro-Forestry Residues
 Woody/Bamboo pieces or Chips
 Rice Husk
 Nut Shell like Coconut, Peanut
 Corn Cob
Wood
 Sugarcane Baggasse
 Cashew Nut Shell
 Agriculture Waste
Corn Cobs
Rice Husk
Syngas or Producer Gas
(Chemical Formula)
 N2
Nitrogen
 CO
Carbon Monoxide
 H2
Hydrogen
 CO2
Carbon Dioxide
 CH4
Methane
 O2
Oxygen
Syngas/Producer Gas - Composition
Chemical
Compounds
Rice Husk
Woody Biomass
CO
15-25%
20-27%
H2
10-15%
10-15%
CH4
Upto 4%
Upto 3%
N2
45-55%
45-50%
CO2
8-12%
8-12%
O2
0-0.5%
0-0.6%
Gas C.V. (kcal/Nm3)
Above 1050
Above 1100
Syngas generated
per kg of biomass
2 Nm3
2.5 Nm3
Syngas Characteristics
 No Color
 Some Odor (distinct “burnt” smell)
 Some Impurities (Not Clean)
 Poisonous (Health Affecting)
Biomass Gasification Technology,
Gasifier System Components and
Design
Biomass Gasifier – Products
 WBG - Woody Biomass Gasifier
 FBG - Rice Husk Gasifier
 COMBO - Combination Biomass Gasifier
Bin
Hopper
Reactor
Venturi
Scrubber
Heat
Exchanger
Demister
Blower
Filters
Gas Line
Gas Flare
Gasifier Body
1
 1- Bunker
 2- Hopper
2
 3- Reactor
3
 4- Dry Ash Conveyor
 5- Rice Husk Elevator
4
5
Wet / Dry Blower
 1- Blower suction
adaptor
2
 2- Water injection to wet
blower
 3- Observation window
 4- Blower delivery/outlet
3
 5- Manual gas control
valve
 6- Separation box gas inlet
 7- Separation box
1
Hot and Cool Gas Lines
 6 – Reactor Outlet box
 7 – Venturi Scrubber
 8 – Hot Gas Temperature
 9 – Drain box
 10 – Drain Tub
 Safety Filter and Passive Filters
Coarse and Fine Filter Lines
Wastewater Treatment Plant
Cooling Tower
ALUM Settling Tank
Charcoal Filter
Sand Filter
Biomass Gasifiers System
Size and Capacity
CAPACITY of BIOMASS GASIFIERS
1. Using Rice Husk Fuel = FBG Type Gasifier
2. Using Woody Fuel = WBG Type Gasifier
3. Using Rice Husk and Woody Fuel = COMBO Gasifier
ANKUR Model Sizes FBG : 40, 60, 80, 100, 120, 150,
200, 250, 300, 350, 400, 500, 600, 700, 850
The Largest Size “ANKUR” Type Rice Husk Gasifier is
FBG 850
How to Calculate the Size A Gasifier Running in
Dual Fuel Mode. ( 30% Diesel and 70% Syngas)
Biomass Capacity Table for ANKUR Gasifiers
1. FBG 100 = 120 kg husk per hour
2. FBG 150 = 180 kg husk per hour
3. FBG 200 = 240 kg husk per hour
4. FBG 300 = 360 kg husk per hour
5. FBG 400 = 480 kg husk per hour
6. FBG 500 = 600 kg husk per hour
7. FBG 600 = 720 kg husk per hour
8. FBG 700 = 840 kg husk per hour
9. FBG 850 = 1,020 kg husk per hour
Thanks You !

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