Vidirbins

BiomassBEST unit burns straw, wood chips, manure …



The tarp covered bale conveyor protects the bales as well as feeding operation during winter.



Clean exhaust emissions as a result of better combustion process and particulate trapping.

Straw bales are abundantly available in prairies. Compared to any other fuel, straw is the cheapest and renewable.

When a community invests in a district heating system, and purchases straw from area farmers, the money stays in the community.

Emissions

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Dillon Consulting Limited was retained by BiomassBEST to conduct source testing on the gasifier exhaust stack to quantify combustion gas emissions. These tests were conducted on our 3 million btu/hr gasifier operating at the maximum system designed production rate of approximately 500 pounds (227 kg) of straw feed stock per hour.

The following gases were measured from the exhaust gas stream:
  • Oxygen
  • Carbon Monoxide
  • Sulphur Dioxide
  • Oxides of Nitrogen
  • Carbon Dioxide

The following table summarizes the results of the combustion gas concentrations in the BiomassBEST gasifier exhaust stream.



Combustion Gas concentrations are the average concentrations from 3 separate test periods.

POI Summary for 24-hr Averaging Period
Contaminant Max POI Concentrations (ug/m3 Property Line/off property Prov. Of Manitoba Ambient Air Quality Objectives Max. acceptable level (ug/m )3
  1-Hour 24-Hour 1-Hour 24-Hour
Particulate Matter 21.1 8.79 N/V 120
Carbon Monoxide 437 182 35,000 15,000
Oxides of Nitrogen 143 59.6 400 200
Sulphur Dioxide 5.27 2.20 900 300
Hydrogen Chloride 16.7 6.94 100 100

“The results of the dispersion model indicate that the emissions of all of the measured parameters from the [BEST] Gasifier comply with the Ontario and Manitoba regulated Point of Impingement and Ambient Air Quality Criteria Concentrations. The POI concentrations for the remaining combustion gases do not exceed any of the regulated POI limits or AAQC. In general the POI concentrations predicted by the dispersion modeling for all measured pollutants are at least one-half of the regulated levels with no pollution control devices.” - Dillon Final Report, March 2003