Aalto – Pretreatment technologies
The woodworking workshop is equipped with all the necessary woodworking equipment, such as: cross-cut saw, circular saw, bandsaw, board saw, jointer, thicknesser, sanding machines, upright drill, and vertical spindle moulder. For wood chips, a screen can be found (designed according to the SCAN-CM 40:01 standard). For wood meal manufacture, two Wiley mills are available.
Aalto University has several autoclaves, mostly designed for pulping and fractionation experiments, but the equipment is very well suited also for chemical pretreatment of biomass (see the table below). For further information, click on this link: http://bio2.aalto.fi/en/research_equipment_and_services/
Table 2. Aalto reactors for pretreatments.
Volume [L] |
Reactor type |
Mixing / heating |
pmax [bar] |
Tmax [°C] |
10 |
10 L digester |
Liquid circulation / oil |
60 |
250 |
6 x 2.5 |
Air bath digester (6 autoclaves) |
Agitation with rotation / air |
20 |
180 |
8 x 0.2 |
Oil bath digester (8 autoclaves) |
Agitation with rotation / oil |
50 |
200 |
1.6 |
Büchi bep 280 glass reactor |
Propeller / water |
6 |
100 |
0.5 |
Parr 4575 |
Propeller / electricity |
345 |
500 |
0.19 |
Shrinking-bed reactor |
Percolation / electricity |
130 |
300 |
In addition to the reactors mentioned in the table above, two CRS Engineering medium consistency mixing reactors are available. The reactors are capable of handling 200 g batches of pulp at consistencies of 10-15%, and both reactors consist of a reactor vessel, fluidization mixer and reactor lid.
For further information, please visit http://bio2.aalto.fi/en/research_equipment_and_services/
Created on Mon 25 Jul 2016 00:00:00 and modified on Wed 13 Sep 2017 16:23:21