a) Soxhlet-type Plant

Brand and model: UDT- owned and manufactured.

Temperature range: 0 to 180 °C.

Operating Pressure: -1 to 1 bar.

Description: Stainless steel equipment, whose solids container to be extracted has a volume of 30 L. It includes an evaporator.

The plant consists of four main parts.

  1. Thermostat with an agitator of 38-liter capacity.
  2. Condensation and storage column.
  3. Reactors of 30-liter capacity.
  4. Water traps.

b) Delignification plant

Brand and model: UDT- owned and manufactured.

Capacity: 800-liter extractors.

Description: The extraction plant is made of stainless steel (DIN 1.4571), with the exception of the pump and heat exchanger, and consists of the following parts:

  1. Extractor of 800 liters (maximum pressure 12 bar).
  2. Recirculation pump (Rheinhütte, titanium, motor 3 kW).
  3. Heat exchanger (Schiller of Hastelloy C4, 6 m2 of exchange surface).
  4. 6 storage tanks (1 m3, atmospheric pressure).

c) Bark extraction plant

Brand and model: UDT- owned and manufactured.

Capacity: 4.000-liter extractor.

Description: The extraction plant is made of stainless steel (DIN 1.4571), with the exception of the pump and exchanger, and consists of the following parts:

  1. Extractor of 4000 liters (maximum pressure 6 bar).
  2. Recirculation pump (KSB, stainless steel 316, motor 1,5 kW, flow 12m3).
  3. Heat exchanger (Own manufacture, stainless Steel 304L, 7,96 m2 of exchange surface).
  4. Pressurized storage tank (2,3 m3, maximum pressure 6 bar).

d) High Consistency Continuous Extraction Plant

Brand-Model: Own manufacture

Capacity: 100-200 kg/h.

Description: The high consistency extraction plant has two extraction stages, each consisting of a continuous reactor that transfers the material to a continuous extrusion press that separates the extraction liquid from the solid material. The components are:

  1. 2m3 material storage and dosing tank.
  2. Two continuous screw gear reactors made of AISI304 stainless steel, 6” x 4 meters long.
  3. Two continuous extrusion presses made of AISI 316 and DIN 1.4571 stainless steel.

e) Biomass extraction plant with organic solvents

Brand and model: UDT- owned and manufactured

Extractor capacity: Between 1-5 kg/h

Description: It consists of four modules operating in series; each has a vertical feed tube and an oblique reaction tube, both provided with augers for the forced transport of the material. The extraction liquid circulates in countercurrent. The parts are:

  1. Solids feed tank.
  2. Solids feed tank to the pressure zone.
  3. 4 oblique extracts with transport augers.
  4. Solids discharge system from the pressure zone.
  5. Tank and pump for extraction liquid circulation.