CORDIS
EU research results

CORDIS

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Thermochemical pre-treatment technology for residues from breweries and other biomass to enhance anaerobic digestion

Project information

Grant agreement ID: 315630

Status

Closed project

  • Start date

    1 November 2012

  • End date

    31 December 2014

Funded under:

FP7-SME

  • Overall budget:

    € 1 046 544

  • EU contribution

    € 712 000

Coordinated by:

BEST - BIOENERGY AND SUSTAINABLE TECHNOLOGIES GMBH

Austria

Objective

The aim of the project is the development of a thermochemical pre-treatment technology to increase the gas yield of brewers spent grains during an anaerobic digestion process. Thermochemical pre-treatment will be realised in a pressure vessel by addition of sulphuric acid. Pre-treatment of organic biomass will lead to a break down of the complex lignocellulose structure and release oligomeric/monomeric carbohydrate units which will then be better available for degradation by anaerobic digestion. This leads to improved utilization of the substrate and to a higher gas yield per tonne substrate inserted.
After the pre-treatment the hydrolysate is digested in multi-stage biogas system. During anaerobic digestion H2S is formed out of sulphur containing compounds of the substrate by the anaerobic and facultative anaerobic bacteria. H2S is volatile and will be found in the biogas. Because of the fact that sulphuric acid is used in the pretreatment step, the H2S concentrations in the biogas will be increased. A clean up of the biogas is in all cases inevitable before feed in into e.g. a gas engine. The gas cleaning will be realised by using a trickle bed system. Here H2S will be converted into H2SO4 by microbiological desulphurisation process. The H2SO4 solution can be recovered for the thermochemical pre-treatment process.
After lab scale investigation, a demonstration plant will be constructed and the process will be evaluated at two different breweries.
For further application TherChem process will be tested on 5 different substrates in lab scale.

Coordinator

BEST - BIOENERGY AND SUSTAINABLE TECHNOLOGIES GMBH

Address

Inffeldgasse 21b
8010 Graz

Austria

Activity type

Research Organisations

EU Contribution

€ 32 800

Administrative Contact

Ortner Markus (Mr.)

Participants (7)

ATRES

Germany

EU Contribution

€ 327 213

ING. AIGNER WASSER-WAERME-UMWELT GMBH

Austria

EU Contribution

€ 167 185

S&H UMWELTENGINEERING VERTRIEBS GMBH

Germany

EU Contribution

€ 86 842

AAT ABWASSER- UND ABFALLTECHNIK GMBH

Austria

EU Contribution

€ 6 900

WADI-BRAU-HUUS AG

Switzerland

EU Contribution

€ 51 860

UNERTL WEISSBIER GMBH

Germany

UNIVERSITAET FUER BODENKULTUR WIEN

Austria

EU Contribution

€ 39 200

Project information

Grant agreement ID: 315630

Status

Closed project

  • Start date

    1 November 2012

  • End date

    31 December 2014

Funded under:

FP7-SME

  • Overall budget:

    € 1 046 544

  • EU contribution

    € 712 000

Coordinated by:

BEST - BIOENERGY AND SUSTAINABLE TECHNOLOGIES GMBH

Austria