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Reed canary grass as an energy crop Håkan Örberg Unit of biomass technology and chemistry. Reed Canary Grass research at SLU/BTK   Establishing crop Crop treatment   Harvesting and transport   Storage   Upgrading to Briquettes and pellets   Combustion.

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slide1

Reed canary grass as an energy crop

Håkan Örberg

Unit of biomass technology and chemistry

slide2

Reed Canary Grass research

at SLU/BTK

  Establishing crop

Crop treatment

  Harvesting and transport

  Storage

  Upgrading to Briquettes and pellets

  Combustion

slide3

Perennial rhizomatous GrassReed Canary Grass

  • A high yield crop in humid areas
  • Resistant to diseases and damage by insects
  • Establishing by seeding
  • Agricultural machineries can be used by harvesting and seeding
slide4

Delayed harvest of Reed Canary Grass

  • 1. Washing by winter rain gives lower K and Cl contents
  • 2. Harvest in early spring time gives dry material . 12-15 % water
  • 3.High losses
slide7

Fertilizing kg/ha

  • Year 1+2 N P K
  • 150 40 150
  • Year 3-10/year 80 10 10
  • Based on a yield of: 7500 kg/ha
slide10

Harvesting studies

  • Harvesting methods
  • Combination of machineries
  • Capacity measurements
  • Defining period length of harvest
  • Defining yield and losses
  • Defining d.m.values
slide16

Storage studies

  • Different cover methods
  • Different stacking methods
  • Time consumption
  • Cost calculating
slide20

Upgrading to pellets or briquettes

  • Capacity and quality measurements
  • Electrical consumption measurements
  • Optimizing processing parameters:

- Grinding, sieving, steam conditioning

- Die type

System analysis

slide25

Combustion

  • Combustion tests
  • Emission measurements
  • Ash melting characteristics
  • Combustion efficiency