New opportunities to produce biogas

IES BIOGAS has a decade of experience in the design and start-up of anaerobic digestion plants powered by a wide and heterogeneous range of different organic substrates (database of chemical-physical and BMP analyses carried out on over 500 biomasses by our biologists). Over the years, we have developed an in-depth specialistic know-how and refined pretreatment technological processes that are fundamental for the correct fermentation of all the matrices.

In particular, biomasses with a high content of cellulose, hemicellulose and lignin for their high availability and because they compete with the production of biomass intended for food, are a by-product particularly suitable for the production of new generation biogas. However, this kind of by-products cannot be used as it is, but needs to undergo a pretreatment in order to facilitate the digestion process.

There are many types of treatments: mechanical, chemical, thermal. After several researches, IES Biogas has chosen to develop three treatment lines according to the type of biomass, the availability of co-substrates and the anaerobic digestion technology.

  • Handling, cleaning, shredding
  • Handling, cleaning, shredding, STEAM EXPLOSION
  • Handling, cleaning, shredding, BRIQUETTING
  • Ability to use a wide variety of biomass
  • Maximum efficiency of the anaerobic digestion process
  • Higher biogas productivity
  • Better yield of the stirring system in the fermenters
  • Lower biomass requirements for the same biogas production
  • Less need to add fresh liquids to the input
  • Greater flexibility in the system’s feeding recipe
Straw details during the various pre-treatment phases

Starting straw bale

After the straw bale breaker system, the length is almost unchanged compared to the starting stem

After the shredder, length up to 100 mm

After processing in the straw mill, length up to 30 mm

Product of the briquetting treatment, 100-120 mm thick