|
|
|
|
 |
Biomass
Gasification |
|
|
The
Biomass gasification process provides a sustainable,
affordable and attractive option and much more
viable than power plants, based on fossil fuel. |
|
|
|
|
more... |
|
|
|
|
| |
| Technology |
| |
| Biomass gasification
technology: |
Arrya
has been licensed by M/s Advanced Bioresidue Energy
Technologies Society (ABETS), which is part of the Combustion
Gasification and Propulsion Lab (CGPL), Department of
Aerospace, Indian Institute of Science, Bangalore. ABETS
has pioneered the development of biomass gasification
in the country and has obtained a number of patents
in over two decades of research. The technology transfer
agreement provides for continuous upgrading of all developments
made in the technology by ABETS.
|  |
Biomass gasification is the process of conversion of solid
biomass into gaseous form. Advanced Bio-residue energy
Technologies society (ABETS) at the Indian Institute of
Science, Bangalore have designed and developed down draught
gasifier with unique feature of open top with twin air
entry system. |
|
The Process of Gasification
|
The process
involved partial Pyrolysis, Oxidation, and reduction under
sub-stochoiomatric conditions. This generates producer
gas, which contains H2, CO, CH4, CO2 and N2. Raw and hot
producer gas contains particals of dust and condensable
compounds, termed tar, both of which should be restricted
to less than 50 ppm each, for the gas to be used internal
combustion engine. Producer gas has to be cleaned and
coded to ambient temperature for meeting thermal needs
and power generation.
|
|
Gasifier Plant consists of: |
| • |
Material handling system
for conveying biomass into reactor. |
| • |
Gasifier Reactor (Stainless steel and
ceramic lining inside) which generates producer gas. |
| • |
Cooling, scrubbing and cleaning system,
which help to clean and cool the producer gas to ambient
temperature, prior to admission to burners for thermal
application or into IC engines for power generation. |
| • |
Water Treatment (water can be cooled,
recycled and used after chemical treatment) |
| • |
Control room (MCC, PLC instrument panel
&operating control desk). |
|
Salient
Features of our gasification system and technology are given
below: |
| • |
Open top, twin air entry
system, which ensures a better thermal environment compared
to the conventional closed top model. |
| • |
Multi-fuel capability – wood
residues and agro residues in briquetted form with moisture
content less than 10%. |
| • |
Permits high gasification efficiency
above 85%, with biomass consumption between 0.8 kg to
1.2 kg/KWH |
| • |
Producer gas generated is of a very
high quality. |
| • |
It is environmentally sound ( CO2 neutral)
with low Nox and no Sox in the engine exhaust. |
| • |
The gasifier is robust in construction
with ceramic lining inside, which provides a better operating
atmosphere and considerably reduces gasifier maintenance.
|
| • |
In-built safety features that isolate
the gasifier in case of an emergency shut down. |
| • |
Effective gas cleaning system which
provides gas with less than 15 ppm of suspended matter
thereby meeting the quality standards set by engine manufacturers |
| • |
Eligible for benefits under CDM |
|
| |
|
SCHEMATIC DIAGRAM OF BIOMASS GASIFIER
|
| |
 |
| |
|
