CO

Carbon Monoxide

Latest Developments in the Use of Wood Gas in Gas Engines

Last updated February 01, 2009

Latest Developments in the Use of Wood Gas in Gas Engines (pdf)
Thomas Elsenbruch, GE Jenbacher, Jenbach, Austria, IDGTE Toronto, Canada; 12. June 2008

Jenbacher gas engines – Overview 1
A leading manufacturer of gas-fueled
reciprocating engines for power
generation.
• Power range from 0.25MW to 3MW,
4 platforms / 10 products
• Fuel flexibility: Natural gas or a variety of
renewable or alternative gases
(e.g., landfill gas, biogas, coal mine gas)
• Plant configurations: Generator sets,
cogeneration systems, container solutions
• Delivered engines: about 8,000 units / 9,000 MW

Experiences with Wood gasification
•Harboore / Denmark;
Woodgas; H2: 15 - 18%; CO: 25-28%; LHV = 6.8 MJ/Nm³
•Güssing / Austria
Woodgas; H2: 35 - 40%; CO: 20-25%; LHV = 10.5 MJ/Nm³
•Spiez / Switzerland
Woodgas; H2: 12 - 15 %; CO: 18-20%; LHV = 5.4 MJ/Nm³
•Kokemäki / Finnland
Woodgas; H2: 15 - 18%; CO: 18 - 20%; LHV = 6.1 MJ/Nm³
•Skive / Denmark
Woodgas; H2: 15 - 18%; CO: 18 - 20%; LHV = 6.1 MJ/Nm³

Crucial points in the utilization of
wood gas
- Gas cleaning technology
- Fulfillment of emissions
Installed woodgas plants

Summary
wide range of H2 gases can be used in gas engines
key factor is laminar flame speed
main technical barriers:
gas contamination (tar, humidity....)
CO- emissions

The Institute of Gas Turbine and Diesel Engineers (Canadian Branch)
2008 Spring Seminar: Renewable Fuel Utilization
Seminar Presentations

University of Montana Bio-Energy Project: Energy Tech Practicum

Last updated November 04, 2008

University of Montana Bio-Energy Project: Energy Tech Practicum(5.4 MB ppt)
Brian Kerns, University of Montana, Alternative Energy Research and Development, brian.kerns@umontana.edu August 4, 2008

Biomax 25
Biomax 25

Biomass Project
Sponsored by USDA
3 year project, begun 10/2006
Utilizes Community Power Corp.’s BioMax® technology
Custom-built portable trailer
$500,000 for BioMax & trailer
Convert wood residue to
Electricity
Thermal (heat) energy

Project Concept:
Is it economically viable to transport portable distributed energy generators into locations that are producing biomass residues?

BioMax 25
- 25 kilowatts electrical
= 200,000 Btu/h heat
- Elec. & heat energy for 15 avg. MT homes
- 50 lbs/hr wood chips
- 1,750 scf/h prod. gas
- Char/ash production 0.75 lbs/hr
- Soil amendment
- 70% overall efficiency

Fuel Equivalents
1 hr operation = 50 lb wood = 400,000 Btu
= 3.3 gal gasoline
= 8 gal diesel
= 4.5 gal propane
= 2.9 gal crude oil
= 33.3 lbs coal
= 387.9 cubic feet natural gas

BioMax Emissions
Complies w/ CA air stds
Lbs/kWh
NOX 0.00065
CO 0.0000295
VOC 0.000031
PM2-5 0.0003
PM10 0.0000
CO2 7.7260
Hg 0.0000
Pb 0.0000
SO2 <0.0030

See also:
Woody Biomass Lights Up Researchers Capitol Press, 8/22/08

Prototype gasifier turns wood chips into versatile fuel source

Barbara Coyner
For the Capital Press

MISSOULA, Mont. - With a flip of a switch, Brian Kerns can turn wood chips into energy for a car, light at a remote work site, or electricity for the energy grid. . .

For the economics see:
Fuel to Burn: Economics of Converting Forest Thinnings to Energy Using BioMax in Southern Oregon. E. M. (Ted) Bilek, Kenneth E. Skog, Jeremy Fried, Glenn Christensen, USFS General Technical Report FPL-GTR-157

FOUR STAGE, FLUIDIZED BED GASIFICATION PROCESS MINIMIZES NOX

FOUR STAGE, FLUIDIZED BED GASIFICATION PROCESS MINIMIZES NOX
F. Michael Lewis, Roger T. Haug, Environmental Engineering Division, Bureau of Engineering, City of Los Angeles
ASME Paper No. FBC99-0205, 15th International Conference on Fluidized Bed Combustion, Savannah, Georgia, May 16 - 19, 1999

Hyperion Setting Stage
Hyperion Setting Stage
Staged Gasification
Staged Gasification

Select image and "Original" to enlarge.

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