Difference between revisions of "Primary processing"

[checked revision]

Revision as of 11:27, 30 August 2021

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 the purpose of primary processing, others (such as the separation processes and technologies) can be utilised in both primary and secondary processing.

Biochemical processes and technologies

Aeration
Anaerobic digestion
Composting
Insect farming

Chemical processes and technologies (these might be hybrid processing)

Hybrid processes and technologies

Pulping
- 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)

Physical processes and technologies (these might be hybrid processing)

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

Thermochemical processes and technologies

Ammonia fibre expansion
Gasification
Hydrothermal processing
Pyrolysis
Torrefaction
- Dry torrefaction
- Wet torrefaction

@@ Line 57: / Line 57: @@
 == Thermochemical processes and technologies ==
-* Ammonia fibre expansion
+* [[Ammonia fibre expansion]]
-*Gasification
+* [[Gasification]]
-*Hydrothermal
+* [[Hydrothermal processing]]
-*[[Pyrolysis]]
+* [[Pyrolysis]]
-* Torrefaction
+* [[Torrefaction]]
-**Dry torrefaction
+** Dry torrefaction
 ** Wet torrefaction
 [[Category:Primary processing|!]]