Primary processing

Revision as of 09:46, 27 August 2021 by Lars Krause (talk | contribs)

Primary processing of biowaste results in intermediate chemicals and/or materials which will then go into the secondary processing after which the final product is obtained. While some technologies are used exclusively for primary processing, others (such as the separation technologies) can used for both primary and secondary processing.

Biochemical pre-treatments

Chemical pre-treatments

Physical pre-treatments

  • Densification
  • Microwave
  • Pressure-densification
  • Sizing
    • Chipping
    • Grinding
  • Steam explosion
    • Air
    • Supercritical CO2
  • Thermal expansion
  • Ultrasonication

Separation pre-treatments

Thermochemical pre-treatments

  • Ammonia fibre expansion
  • Dry torrefaction
  • Wet torrefaction

Pulping (we need to divide all pulping subcatecories to the existing ones, suggestions are welcome)

  • Chemical pulping
    • Organosolv
    • Soda
    • Sulphate
    • Sulphite
  • Hybrid pulping
    • Neutral Sulfite Semi Chemical pulping (NSSC)
    • Chemithermomechanical pulping (CTMP)
  • Mechanical pulping
    • Refiner
      • Thermomechanical pulping (TMP)
      • Refiner mechanical pulping (RMP)
    • Groundwood
      • Stone groundwood (SGW)
      • Thermal groundwood (TGW)
      • Pressure groundwood (PGW)