Feasibility of electricity production from biomass by gasification systems

Yrjö Solantausta, Esa Kurkela

Research output: Book/ReportReport

Abstract

The overall objectives of the EC Research Programme JOULE II were to evaluate the potential of advanced power production systems based on biomass gasification and to study the technical and economic feasibility of these new processes with different types of biomass feedstocks. This report was prepared as part of a larger R & D project within JOULE II. The objectives of this subtask were to design a number power production process concepts for evaluation in the following size classes: farm scale (100 - 300 kWe), small scale (5 - 10 MWe), medium scale (20 - 30 MWe), and large scale (40 - 60 MWe); to determine mass and energy balances for each of the process concepts, and to determine the technoeconomic feasibility of the proposed concepts in the appropriate size class. The following conclusions were drawn from the results of the study: 1) New power production systems based on pressurised gasification and gas tur-bine cycles may be feasible only in a relatively large size class. 2) The gasification-diesel concept has, in small size classes, a potential to reach higher power production efficiencies than those reached in conventional fluidized-bed boilers. 3) Fixed-bed downdraft gasification coupled to a diesel or spark-ignited engine is one of the very few technically possible alternatives to produce electricity from biomass on a "farm scale". The main technical uncertainties of the concepts can be listed as follows: 1) gasifiers requires fur- ther development work. 2) Simplified IGCC technology has so far been tested with woody biomass and coal on a pilot scale only, and the behaviour of different agricultural residues and energy biomasses is poorly studied. 3) Gas cleaning is considered to be the prime uncertainty of the concepts. 4) The number of gas turbines applicable for hot low-heating-value gases is very small, and none of the present turbines has been designed especially for this type of gas. 5) The technical feasibility of the "farm-scale" concept based on downdraft gasification is limited to high-quality biomass fuels.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages52
ISBN (Print)951-38-4803-5
Publication statusPublished - 1995
MoE publication typeNot Eligible

Publication series

SeriesVTT Tiedotteita - Meddelanden - Research Notes
Number1648
ISSN1235-0605

Fingerprint

Gasification
Biomass
Electricity
Farms
Gases
Agricultural wastes
Energy balance
Electric sparks
Fluidized beds
Feedstocks
Gas turbines
Boilers
Cleaning
Turbines
Coal
Engines
Heating
Economics

Keywords

  • electricity
  • power generation
  • power plants
  • IGCC
  • biomass
  • gasification
  • JOULE II
  • feasibility
  • energy balance
  • mass balance

Cite this

Solantausta, Y., & Kurkela, E. (1995). Feasibility of electricity production from biomass by gasification systems. Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Meddelanden - Research Notes, No. 1648
Solantausta, Yrjö ; Kurkela, Esa. / Feasibility of electricity production from biomass by gasification systems. Espoo : VTT Technical Research Centre of Finland, 1995. 52 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1648).
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Solantausta, Y & Kurkela, E 1995, Feasibility of electricity production from biomass by gasification systems. VTT Tiedotteita - Meddelanden - Research Notes, no. 1648, VTT Technical Research Centre of Finland, Espoo.

Feasibility of electricity production from biomass by gasification systems. / Solantausta, Yrjö; Kurkela, Esa.

Espoo : VTT Technical Research Centre of Finland, 1995. 52 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1648).

Research output: Book/ReportReport

TY - BOOK

T1 - Feasibility of electricity production from biomass by gasification systems

AU - Solantausta, Yrjö

AU - Kurkela, Esa

PY - 1995

Y1 - 1995

N2 - The overall objectives of the EC Research Programme JOULE II were to evaluate the potential of advanced power production systems based on biomass gasification and to study the technical and economic feasibility of these new processes with different types of biomass feedstocks. This report was prepared as part of a larger R & D project within JOULE II. The objectives of this subtask were to design a number power production process concepts for evaluation in the following size classes: farm scale (100 - 300 kWe), small scale (5 - 10 MWe), medium scale (20 - 30 MWe), and large scale (40 - 60 MWe); to determine mass and energy balances for each of the process concepts, and to determine the technoeconomic feasibility of the proposed concepts in the appropriate size class. The following conclusions were drawn from the results of the study: 1) New power production systems based on pressurised gasification and gas tur-bine cycles may be feasible only in a relatively large size class. 2) The gasification-diesel concept has, in small size classes, a potential to reach higher power production efficiencies than those reached in conventional fluidized-bed boilers. 3) Fixed-bed downdraft gasification coupled to a diesel or spark-ignited engine is one of the very few technically possible alternatives to produce electricity from biomass on a "farm scale". The main technical uncertainties of the concepts can be listed as follows: 1) gasifiers requires fur- ther development work. 2) Simplified IGCC technology has so far been tested with woody biomass and coal on a pilot scale only, and the behaviour of different agricultural residues and energy biomasses is poorly studied. 3) Gas cleaning is considered to be the prime uncertainty of the concepts. 4) The number of gas turbines applicable for hot low-heating-value gases is very small, and none of the present turbines has been designed especially for this type of gas. 5) The technical feasibility of the "farm-scale" concept based on downdraft gasification is limited to high-quality biomass fuels.

AB - The overall objectives of the EC Research Programme JOULE II were to evaluate the potential of advanced power production systems based on biomass gasification and to study the technical and economic feasibility of these new processes with different types of biomass feedstocks. This report was prepared as part of a larger R & D project within JOULE II. The objectives of this subtask were to design a number power production process concepts for evaluation in the following size classes: farm scale (100 - 300 kWe), small scale (5 - 10 MWe), medium scale (20 - 30 MWe), and large scale (40 - 60 MWe); to determine mass and energy balances for each of the process concepts, and to determine the technoeconomic feasibility of the proposed concepts in the appropriate size class. The following conclusions were drawn from the results of the study: 1) New power production systems based on pressurised gasification and gas tur-bine cycles may be feasible only in a relatively large size class. 2) The gasification-diesel concept has, in small size classes, a potential to reach higher power production efficiencies than those reached in conventional fluidized-bed boilers. 3) Fixed-bed downdraft gasification coupled to a diesel or spark-ignited engine is one of the very few technically possible alternatives to produce electricity from biomass on a "farm scale". The main technical uncertainties of the concepts can be listed as follows: 1) gasifiers requires fur- ther development work. 2) Simplified IGCC technology has so far been tested with woody biomass and coal on a pilot scale only, and the behaviour of different agricultural residues and energy biomasses is poorly studied. 3) Gas cleaning is considered to be the prime uncertainty of the concepts. 4) The number of gas turbines applicable for hot low-heating-value gases is very small, and none of the present turbines has been designed especially for this type of gas. 5) The technical feasibility of the "farm-scale" concept based on downdraft gasification is limited to high-quality biomass fuels.

KW - electricity

KW - power generation

KW - power plants

KW - IGCC

KW - biomass

KW - gasification

KW - JOULE II

KW - feasibility

KW - energy balance

KW - mass balance

M3 - Report

SN - 951-38-4803-5

T3 - VTT Tiedotteita - Meddelanden - Research Notes

BT - Feasibility of electricity production from biomass by gasification systems

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Solantausta Y, Kurkela E. Feasibility of electricity production from biomass by gasification systems. Espoo: VTT Technical Research Centre of Finland, 1995. 52 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1648).